JP6942009B2 - Medium plate rising discharge container - Google Patents

Description

The present invention relates to a middle plate raising type discharge container.

There is known a discharge container in which the storage volume in the container body decreases by the volume integral of the discharged contents as the contents in the container body are discharged. For example, Patent Document 1 describes a discharge container provided with a sliding bottom lid slidably arranged in the body of the container body. When the contents are discharged, the sliding bottom lid is displaced ascendingly, and the accommodating volume in the container body is reduced.

Japanese Unexamined Patent Publication No. 2010-173701

By the way, in the discharge container of Patent Document 1, in order to recognize the remaining amount of the contents, a see-through window is provided on the body of the container body so that the inside of the container body can be seen through. The user can know that the remaining amount of the contents has decreased by visually recognizing the sliding bottom lid that has been displaced upward through the see-through window. However, since the body of the container body is provided with a see-through window that allows the inside of the container body to be seen through, there is a problem that the appearance of the discharge container is deteriorated.

In view of the above problems, one of the objects of the present invention is to provide a middle plate raising type discharge container capable of recognizing the remaining amount of the contents while suppressing deterioration of the appearance.

One aspect of the middle plate raising type discharge container of the present invention is a container body having a body portion in which the contents are housed and a bottom portion fitted and fixed in the lower end portion of the body portion, and an upwardly urged state. A pump mounted on the upper part of the body, having a stem mounted on the upper end of the stem and a pressing head on which a discharge hole for the contents is formed, and a pump mounted on the upper part of the body, and the inside of the body. A middle plate that is slidably fitted to the inside of the body and rises in the body when the contents are discharged, and an engaging claw portion that protrudes downward is arranged on the lower surface of the middle plate and is provided on the bottom. , The spiral portion wound so as to exhibit a spiral shape in a top view, and the spiral portion are projected upward toward the inner peripheral end portion of the spiral portion, and are engaged with the engaging claw portion and connected to the middle plate. A band body including the connecting portion is arranged, and a band retainer rotatably arranged in a state where ascending movement is restricted is arranged on the band body, and the bottom portion has the band body on the upper surface. The arranged bottom wall portion, the tubular portion protruding upward from the band retainer from the outer peripheral edge portion of the bottom wall portion and fitted in the lower end portion of the body portion, and the tubular portion above the band retainer. A plurality of locking ribs protruding inward in the radial direction from a portion located in the above, and a rotation restricting rib protruding upward from the bottom wall portion are provided, and the plurality of locking ribs are evenly spaced along the circumferential direction. The band retainer is locked from above to restrict the upward movement of the band retainer, and the band body sequentially passes through the band retainer as the middle plate moves upward. A passing hole to be fed out and a protruding portion protruding radially inward from the inner peripheral edge portion of the passing hole are formed, and a predetermined portion of the spiral portion to be fed upward through the passing hole is formed. In a state where the hole portion is formed and the predetermined portion is extended upward through the passage hole, the rotation restricting rib is engaged with the inside of the hole portion in the circumferential direction of the band body. After the rotation is restricted and the predetermined portion is extended upward through the passage hole, the engagement between the hole and the rotation restricting rib is released, and the band is rotatable in the circumferential direction. The bottom wall portion is provided with a remaining amount recognizing portion capable of recognizing the remaining amount of the contents by being able to visually recognize the visually recognizing portion provided on the band body. ..

According to one aspect of the middle plate raising type discharge container of the present invention, when the spiral portion is sequentially lifted, a predetermined portion of the spiral portion in which the hole portion is formed is also lifted. As a result, the hole portion moves upward, the rotation restricting rib is pulled out from the hole portion, and the engagement between the hole portion and the rotation regulating rib is released. Therefore, the band is in a state of being rotatable in the circumferential direction. In this state, when the spiral portion is further lifted, the band itself also rotates in the circumferential direction. Therefore, a part of the band that can be seen from the remaining amount recognition unit changes to a different part. That is, when the spiral portion is lifted to some extent, a part of the band body that can be visually recognized through the remaining amount recognition portion changes. As a result, the visual recognition unit cannot be visually recognized via the remaining amount recognition unit, or the visual recognition unit can be visually recognized via the remaining amount recognition unit. Therefore, the user recognizes the degree to which the spiral portion is lifted, that is, the remaining amount of the contents, by confirming the state of the band body that can be visually recognized from the remaining amount recognition unit provided on the bottom wall portion by the visual recognition unit. be able to. Since the lower surface of the bottom wall portion serves as a ground contact surface when the middle plate raising type discharge container is placed, the remaining amount recognition unit is not visible to the user when the middle plate raising type discharge container is placed. As a result, it is possible to prevent the appearance of the middle plate raising type discharge container from being deteriorated as compared with the case where the remaining amount recognition unit is provided on the body portion. Therefore, according to one aspect of the middle plate raising type discharge container of the present invention, a middle plate raising type discharge container capable of recognizing the remaining amount of the contents can be obtained while suppressing deterioration of the appearance.

Further, for example, when the spiral portion is not sequentially lifted and the outer peripheral portion is lifted earlier than the inner peripheral portion, the predetermined portion in which the hole portion is formed in the spiral portion may be lifted first. In such a case, before the remaining amount of the contents becomes less than the predetermined remaining amount, the band rotates and a part of the band visible from the remaining amount recognition unit shifts in the circumferential direction, and the user can use the contents. It may not be possible to correctly recognize the remaining amount of. On the other hand, a band retainer having a passage hole for sequentially extending the spiral portion upward is arranged on the band body. Therefore, the portion of the spiral portion that should not be lifted yet (the predetermined portion where the hole portion is formed) is pressed from above by the band retainer, the lifting is suppressed, and the portion of the spiral portion that should be lifted passes through. It is lifted sequentially through the holes. In this way, since the spiral portion can be reliably lifted from the inner peripheral portion side in response to the decrease in the remaining amount of the contents, the predetermined portion of the spiral portion in which the hole portion is formed is the residue of the contents. It is possible to prevent the amount from being lifted before the remaining amount falls below a predetermined amount. Therefore, the user can correctly recognize the remaining amount of the contents.

Further, since the band retainer is rotatably arranged, it rotates as the spiral portion is lifted, and does not hinder the feeding of the spiral portion through the passage hole. Further, since the band retainer rotates as the spiral portion is lifted, the circumferential position of the protruding portion can be changed according to the degree to which the spiral portion is lifted. As a result, the portion of the spiral portion that should not be lifted yet can be suitably pressed by the protruding portion.
Further, since the band retainer is restricted from moving up by the locking rib at the bottom, the spiral portion is prevented from being lifted and the band retainer is suppressed from rising. As a result, the band retainer can suitably press the portion of the spiral portion that should not be lifted yet.

Further, the rotation of the band is restricted by the rotation restricting ribs arranged at the bottom in the state before the predetermined portion of the spiral portion in which the hole is formed is extended upward. Therefore, even if the spiral portions are sequentially lifted, it is possible to suppress the rotation of the band until a predetermined portion of the spiral portion in which the hole portion is formed is lifted. As a result, it is possible to prevent the band from rotating and shifting in the circumferential direction before the remaining amount of the contents becomes equal to or less than the predetermined remaining amount.

The remaining amount recognition unit may be configured to include a window hole portion that penetrates the bottom wall portion in the vertical direction.
According to this configuration, a part of the band can be visually recognized through the window hole portion, and the remaining amount of the contents can be recognized.

The remaining amount recognition unit may be configured to include a transparent unit that transmits visible light in the vertical direction.
According to this configuration, the user can visually recognize a part of the band through the transparent portion and can recognize the remaining amount of the contents.

A plurality of the protruding portions may be provided along the circumferential direction.
According to this configuration, it is easy for the user to align the circumferential position of the protruding portion with respect to the predetermined portion in which the hole portion is formed in the spiral portion.

According to one aspect of the present invention, there is provided a medium plate raising type discharge container capable of recognizing the remaining amount of the contents while suppressing deterioration of the appearance.

FIG. 1 is a partial vertical sectional view showing a middle plate raising type discharge container of the present embodiment. FIG. 2 is a partial vertical cross-sectional view showing a portion of the middle plate ascending discharge container of the present embodiment. FIG. 3 is a view showing a middle plate raising type discharge container of the present embodiment, and is a cross-sectional view taken along the line III-III in FIG. FIG. 4 is a bottom view of the middle plate raising type discharge container of the present embodiment as viewed from below. FIG. 5 is a top view of the band of the present embodiment as viewed from above. FIG. 6 is a partial vertical cross-sectional view showing a state in which the contents are reduced in the middle plate raising type discharge container of the present embodiment. FIG. 7 is a view showing a state in which the contents are reduced in the middle plate raising type discharge container of the present embodiment, and is a cross-sectional view taken along the line VII-VII in FIG.

Hereinafter, the middle plate raising type discharge container according to the embodiment of the present invention will be described with reference to the drawings. The scope of the present invention is not limited to the following embodiments, and can be arbitrarily changed within the scope of the technical idea of the present invention. Further, in the following drawings, the scale and the number of each structure may be different from the scale and the number of the actual structure in order to make each configuration easy to understand.

As shown in FIG. 1, the middle plate raising type discharge container 1 of the present embodiment has a bottomed cylindrical container body 2 in which the content W is housed and the contents in the container body 2 mounted on the container body 2. A pump 3 for discharging W, a middle plate 7 slidably fitted in the container body 2, an overcap 8 for covering the pump 3, a band body 30, and a band retainer 40 are provided.
In the following description, the central axis of the container body 2 is referred to as the container axis O, and the direction along the container axis O is referred to as the vertical direction. The side on which the pump 3 is mounted is referred to as the upper side and the opposite side is referred to as the lower side in the vertical direction with respect to the container body 2. Further, in a plan view viewed from the vertical direction, the direction orthogonal to the container axis O is called the radial direction, and the direction orbiting around the container axis O is called the circumferential direction.

The container body 2 includes a cylindrical body portion 5 that opens at both ends in the vertical direction, and a bottom portion 12 that is fitted and fixed in the lower end portion of the body portion 5.
The content W is housed in the body portion 5. The body portion 5 includes a mouth portion 9 having a male screw formed on the outer peripheral surface thereof, and a body portion main body 10 connected to the lower end of the mouth portion 9 and having a diameter larger than that of the mouth portion 9. The body portion 5 is, for example, an opaque member capable of blocking light. As a result, it is possible to suppress the irradiation of the content W with light from the outside of the container body 2, and it is possible to suppress the deterioration of the content W.

As shown in FIG. 2, the bottom portion 12 includes a bottom wall portion 12a, a tubular portion 12b, and a plurality of locking ribs 12e. Further, the bottom portion 12 includes a rotation restricting rib 12f as shown in FIGS. 3 and 4.
As shown in FIG. 4, the bottom wall portion 12a has a disk shape arranged coaxially with the container shaft O. As shown in FIG. 2, a band 30 is arranged on the upper surface of the bottom wall portion 12a. The upper surface of the outer peripheral end of the bottom wall portion 12a is in contact with the lower end of the body portion 5, that is, the lower end of the body portion main body 10. The bottom wall portion 12a is formed with a through hole 12c that penetrates the bottom wall portion 12a in the vertical direction. The through hole 12c extends along the circumferential direction as shown in FIGS. 3 and 4. A plurality of through holes 12c are formed at equal intervals along the circumferential direction. In this embodiment, for example, six through holes 12c are formed.
In the present embodiment, the bottom wall portion 12a is formed with a window hole portion 12h that penetrates the bottom wall portion 12a in the vertical direction. The bottom view shape of the window hole portion 12h is a substantially rectangular shape that is long in the radial direction. The window hole portion 12h is formed at a position where it overlaps with the band 30 in the vertical direction.

As shown in FIG. 2, the tubular portion 12b projects upward from the outer peripheral edge portion of the bottom wall portion 12a with respect to the band retainer 40. The tubular portion 12b has a cylindrical shape arranged coaxially with the container shaft O. The tubular portion 12b is arranged slightly inward in the radial direction with respect to the outer peripheral end of the bottom wall portion 12a. The tubular portion 12b is fitted in the lower end portion of the body portion 5. Engagement protrusions 12d protruding outward in the radial direction are formed on the outer peripheral surface of the tubular portion 12b. The engaging protrusion 12d is engaged with the engaging recess 10a formed at the lower end of the inner peripheral surface of the body body 10.

The plurality of locking ribs 12e project radially inward from a portion of the tubular portion 12b located above the band retainer 40. As shown in FIG. 4, the plurality of locking ribs 12e are arranged at equal intervals along the circumferential direction. The plurality of locking ribs 12e are arranged at positions where they overlap with the plurality of through holes 12c in a top view. In this embodiment, for example, six locking ribs 12e are provided. The top view shape of the locking rib 12e is substantially rectangular. As shown in FIG. 2, the plurality of locking ribs 12e overlap the outer peripheral edge portion of the band retainer 40 in the vertical direction. The plurality of locking ribs 12e lock the band retainer 40 from above to regulate the ascending movement of the band retainer 40.

The rotation restricting rib 12f projects upward from the bottom wall portion 12a. As shown in FIG. 4, in this embodiment, for example, only one rotation restricting rib 12f is provided. A plurality of rotation restricting ribs 12f may be provided.
In this embodiment, the bottom portion 12 is formed as a single member. The bottom 12 is opaquely colored.

As shown in FIG. 1, the pump 3 is mounted on the upper part of the body portion 5. The pump 3 includes a mounting cap 13 detachably mounted on the mouth portion 9, a stem 15 supported so as to be movable downward in an upwardly urged state, a pressing head 11 mounted on the upper end of the stem 15, and a stem 15. A cylindrical piston 20 linked to the vertical movement of the piston 20, a cylinder 14 in which the piston 20 is slidably fitted up and down, and a piston mounted on the stem 15 in a state of protruding downward from the stem 15. A guide 16, a valve body 17 fitted in the piston guide 16, and an urging member 21 for urging the stem 15 upward via the piston guide 16 are provided. The mounting cap 13, the stem 15, the pressing head 11, the piston 20, the cylinder 14, the piston guide 16, the valve body 17, and the urging member 21 are arranged coaxially with the container shaft O.

The mounting cap 13 includes a mounting cylinder portion 13e screwed to the mouth portion 9, a flange portion 13d projecting radially inward on the inner peripheral surface of the mounting cylinder portion 13e, and an inner peripheral edge portion of the flange portion 13d. The outer cylinder portion 13c projecting upward, the inner cylinder portion 13a arranged radially inside the outer cylinder portion 13c, and the upper ends of the outer cylinder portion 13c and the inner cylinder portion 13a are connected to each other. A plate portion 13b is provided.

On the inner peripheral surface of the mounting cylinder portion 13e, a female screw screwed to the male screw formed on the mouth portion 9 is formed. Further, the flange portion 13d is provided on the inner peripheral surface of the mounting cylinder portion 13e at a portion located above the female screw. In the illustrated example, an annular packing 23 that tightly seals the space between the lower surface of the flange portion 13d and the upper end surface of the mouth portion 9 is interposed.

The cylinder 14 is formed in a multi-stage cylindrical shape in which the diameter is reduced stepwise from the upper side to the lower side. The upper end of the cylinder 14 is fitted between the outer cylinder portion 13c and the inner cylinder portion 13a of the mounting cap 13 and is assembled to the mounting cap 13.
The pressing head 11 can be pushed downward. The pressing head 11 is formed in the shape of an eclipse cylinder arranged coaxially with the container shaft O. The pressing head 11 is formed with a discharge hole 11a for the content W. The discharge hole 11a is formed at the tip of the nozzle portion 11b protruding radially outward from the pressing head 11. The nozzle portion 11b discharges the content W through the discharge hole 11a provided at the tip when the pressing head 11 moves downward. In FIG. 1, the position of the nozzle portion 11b when the pressing head 11 is pushed down is shown by a chain double-dashed line.

The stem 15 is fitted to the inner cylinder portion 13a of the mounting cap 13 so as to be slidable up and down. A check valve 22 is provided in the stem 15. In FIG. 1, the check valve 22 is a ball valve. The check valve 22 allows the flow of the content W from the lower side to the upper side in the flow of the content W in the stem 15 and blocks the flow of the content W from the upper side to the lower side.
The piston 20 is fitted in the cylinder 14 so as to be slidable up and down.
The piston guide 16 has a cylindrical shape in which the piston 20 is fitted so as to be slidable up and down. The piston guide 16 is formed with a communication hole 16a that communicates the inside of the piston guide 16 and the inside of the cylinder 14. In the state of FIG. 1, the connecting hole 16a is closed by the piston 20.

The valve body 17 includes an upper valve body 18 that is tightly fitted in the piston guide 16 so as to be slidable up and down, and a lower valve body 19 that opens and closes the lower end opening 14a of the cylinder 14.
The urging member 21 is arranged in the cylinder 14. The urging member 21 contacts the lower end of the piston guide 16 from below and urges the piston guide 16 toward the upper side. In FIG. 1, the urging member 21 is a compression spring.

The middle plate 7 is slidably fitted in the body portion 5, and rises in the body portion 5 when the content W is discharged.
1 to 4 show a state in which the content W is not discharged and the middle plate 7 is located at the lowermost position. FIG. 5 shows the band 30 in the states of FIGS. 1 to 4. 6 and 7 show a case where the content W is discharged to some extent and decreases, and the middle plate 7 rises to some extent. In the following description, the states shown in FIGS. 1 to 4 are referred to as unused states.

The middle plate 7 is arranged coaxially with the container shaft O. As shown in FIG. 2, the middle plate 7 closes the sliding cylinder 4 slidably fitted in the body body 10 and the inside of the sliding cylinder 4, and the inside of the body 5 is the upper liquid chamber. A partition wall 6 for partitioning the 5A and the lower space 5B on the lower side is provided. As shown in FIG. 1, the liquid chamber 5A is defined by the upper surface of the inner plate 7, the inner surface of the body 5, the outer surface of the cylinder 14, and the lower surface of the packing 23. The inside of the liquid chamber 5A is hermetically sealed. The liquid chamber 5A is filled with the content W. The lower space 5B communicates with the outside of the container body 2 through the through hole 12c formed in the bottom wall portion 12a.

The sliding cylinder 4 is fitted in the lower end portion of the body portion main body 10, the middle portion in the vertical direction is slightly recessed inward in the radial direction, and the upper end portion and the lower end portion are the inner peripheral surface of the body portion main body 10 over the entire circumference. It is liquid-tight and slidable up and down. In FIG. 2, the lower end of the sliding cylinder 4 faces the cylinder portion 12b of the bottom portion 12 with a gap in the vertical direction.

The partition wall 6 has an annular upper wall portion 25 whose outer peripheral edge portion is connected to the inner peripheral surface of the sliding cylinder 4, and an upper end thereof which is connected to the inner peripheral edge portion of the upper wall portion 25 and goes from upper to lower. A connecting peripheral wall portion 26 whose diameter is gradually reduced according to the above, and a disk-shaped lower wall portion 27 that closes the lower end opening of the connecting peripheral wall portion 26 are provided. The upper wall portion 25, the connecting peripheral wall portion 26, and the lower wall portion 27 are all arranged coaxially with the container shaft O.
The inner diameter of the connecting peripheral wall portion 26 is such that the cylinder 14 can enter the connecting peripheral wall portion 26 until the lower end of the cylinder 14 abuts on the lower wall portion 27.

On the lower surface of the middle plate 7, more specifically, on the outer peripheral edge of the lower surface of the lower wall portion 27, a supported cylinder portion 28 extending downward is arranged coaxially with the container shaft O. The lower end of the supported cylinder portion 28 is in contact with the upper surface of the band 30 in an unused state.
On the lower surface of the middle plate 7, more specifically, on the lower surface of the lower wall portion 27, an engaging claw portion 29 projecting downward is arranged. A claw portion 29a protruding inward in the radial direction is provided at the lower end portion of the engaging claw portion 29. The engaging claw portion 29 has, for example, a cylindrical shape arranged coaxially with the container shaft O. A plurality of engaging claw portions 29 may be provided along the circumferential direction.

The band 30 is arranged at the bottom 12. More specifically, the band 30 is arranged on the upper surface of the bottom wall portion 12a. As shown in FIG. 5, the band 30 includes an annular portion 31, a spiral portion 32, and a connecting portion 33.
The annulus portion 31 has a substantially annular plate shape arranged coaxially with the container shaft O. As shown in FIG. 2, the radial outer end of the annulus portion 31 overlaps the locking rib 12e of the bottom portion 12 in the vertical direction. The inner peripheral edge of the annulus portion 31 is located at the same circumferential position in the top view as shown in FIG. 5, with one peripheral edge and the other peripheral edge different from each other in the radial position. However, the edges of both peripheral edges are connected to each other via a discontinuous portion 31b extending in the radial direction. One peripheral edge is located radially outside the other peripheral edge, and the inner peripheral edge of the annular portion 31 gradually increases from one peripheral edge side to the other peripheral edge side along the circumferential direction. The diameter is reduced. In the illustrated example, the inner peripheral edge of the annular portion 31 extends clockwise from one peripheral edge side toward the other peripheral edge side with respect to the container axis O in top view.

The spiral portion 32 is wound so as to exhibit a spiral shape when viewed from above. The spiral portion 32 is arranged inside the annular portion 31 in the radial direction. More specifically, the spiral portion 32 is formed from the outer peripheral end portion 32a connected to the discontinuous portion 31b at the inner peripheral edge of the annular portion 31 in the circumferential direction around the container axis O in the top view. , It is spirally wound so as to approach the center of the band 30. The inner peripheral end portion 32b of the annulus portion 31 is located at the center of the band 30. The spiral portion 32 has a band shape, and the width of the spiral portion 32 is substantially uniform.

One roll on the outermost circumference of the spiral portion 32 is arranged along the inner peripheral edge of the annular portion 31 and adjacent to the inner peripheral edge of the annular portion 31. One roll located inside the outermost circumference of the spiral portion 32 is arranged along the inner peripheral edge of one roll of the spiral portion 32 adjacent to the outside and adjacent to one roll of the spiral portion 32 adjacent to the outside. ing. The spiral portion 32 is spread inside the annular portion 31 in the radial direction with almost no gap, and the combined shape of the annular portion 31 and the spiral portion 32 is substantially a disk shape in an unused state. The spiral portion 32 is produced, for example, by processing a spiral notch in a disk.

As shown in FIG. 2, the connecting portion 33 projects upward from the inner peripheral end portion 32b of the spiral portion 32. At the upper end of the connecting portion 33, an engaging projection 33a protruding outward in the radial direction is provided. In the connecting portion 33, the engaging protrusion 33a is engaged with the claw portion 29a of the engaging claw portion 29 in the middle plate 7 and is connected to the middle plate 7. In the present embodiment, the connecting portion 33 is a columnar shape arranged coaxially with the container shaft O, and the engaging projection 33a is provided over the entire circumference of the connecting portion 33.

As shown in FIG. 5, a hole 32c is formed in a predetermined portion of the spiral portion 32 in the band 30. In the present embodiment, the hole portion 32c is formed in one winding on the outermost circumference of the spiral portion 32. More specifically, the hole portion 32c is formed in the vicinity of the outer peripheral end portion 32a of the outermost winding of the spiral portion 32. The predetermined portion of the spiral portion 32 in which the hole portion 32c is formed is a portion that is extended upward through the passage hole 50 described later. The hole portion 32c penetrates the band 30 (swirl portion 32) in the vertical direction, for example. The hole portion 32c has an oval shape that is long in the circumferential direction. As shown in FIG. 2, in a state before the predetermined portion of the spiral portion 32 in which the hole portion 32c is formed is extended upward through the passage hole 50, the rotation restricting rib of the bottom portion 12 is inside the hole portion 32c. 12f is engaged to regulate the rotation of the band 30 in the circumferential direction.

As shown in FIG. 5, the band 30 is provided with a colored portion (visual portion) 31a. The colored portion 31a is a portion whose color is different from that of the other portion of the band 30. The coloring portion 31a is provided on the ring portion 31. More specifically, the colored portion 31a is provided on the front side of the discontinuous portion 31b in the winding direction (substantially circumferential direction) from the inner peripheral end portion 32b side to the outer peripheral end portion 32a side of the spiral portion 32. .. As shown in FIG. 4, the colored portion 31a is arranged at a position where it overlaps with the window hole portion 12h in the vertical direction in an unused state. The colored portion 31a is visible from the lower surface of the bottom wall portion 12a via the window hole portion 12h in an unused state.

In the present embodiment, the front side of the spiral portion 32 in the winding direction from the inner peripheral end portion 32b side to the outer peripheral end portion 32a side is the container shaft in the top view as shown in FIG. It is the side that advances counterclockwise around O. Further, the rear side of the spiral portion 32 in the winding direction from the inner peripheral end portion 32b side to the outer peripheral end portion 32a side is centered on the container shaft O in the top view as shown in FIG. 5 in the winding direction. It is the side that goes clockwise.

As shown in FIG. 2, the band retainer 40 is arranged on the band body 30. As shown in FIG. 3, the band retainer 40 has a disk shape in which a passage hole 50 penetrating the band retainer 40 in the vertical direction is formed in the center and is arranged coaxially with the container shaft O. As described above, the band retainer 40 is rotatably arranged around the container shaft O in a state where the ascending movement is restricted by the locking rib 12e. As shown in FIG. 2, the radial position of the outer peripheral end of the band retainer 40 is substantially the same as the radial position of the outer peripheral end of the band 30.

The passage hole 50 allows the connecting portion 33 to pass through. As shown in FIG. 3, the top view shape of the passage hole 50 is a circular shape arranged coaxially with the container shaft O. The inner peripheral edge of the passage hole 50 is located radially outside the outer peripheral edge of the spiral portion 32.

The band retainer 40 is formed with a protruding portion 41 protruding inward in the radial direction from the inner peripheral edge portion of the passage hole 50. In the present embodiment, a plurality of protrusions 41 are provided along the circumferential direction. The plurality of protrusions 41 are arranged at equal intervals over the entire circumference. In this embodiment, for example, six protrusions 41 are provided. The protruding portion 41 is from the inner peripheral edge portion of the passage hole 50 in the radial direction in the spiral portion 32 toward the rear side in the winding direction (substantially circumferential direction) from the inner peripheral end portion 32b side to the outer peripheral end portion 32a side. The protruding height of is increased. Of the both end edges in the winding direction of the protruding portion 41, the rear end edge in the winding direction is a band contact portion 42 extending linearly in the radial direction.

The radial inner end of the protrusion 41 overlaps the spiral portion 32 in the vertical direction. In the present embodiment, the radial inner end of the protrusion 41 overlaps one roll on the outermost circumference of the spiral portion 32 or one roll adjacent to the inside of one roll on the outermost circumference of the spiral portion 32 in the vertical direction. As a result, in the unused state, the band retainer 40 is located above one winding on the outermost circumference of the spiral portion 32 and one winding adjacent to the inside of one winding on the outermost circumference of the spiral portion 32.

In the middle plate raising type discharge container 1 of the present embodiment, as shown in FIG. 4, the remaining amount recognition unit 60 is provided on the bottom wall portion 12a of the bottom portion 12. The remaining amount recognition unit 60 is a portion that makes it possible to recognize the remaining amount of the content W by visually recognizing the colored portion 31a as a visual recognition portion provided on the band 30.
In the present specification, in the remaining amount recognition unit, the visible unit provided on the band is visible from the unused state of the middle plate raising type discharge container to the empty state of the content W. This includes that the visual recognition unit is visible at any timing. That is, depending on the remaining amount of the content W in the middle plate raising type discharge container, the case where the visible part cannot be visually recognized in the remaining amount recognition unit may be included. Further, the state in which the visible portion can be visually recognized and the state in which the visible portion cannot be visually recognized can be defined at any timing from the unused state of the middle plate raising type discharge container to the state in which the content W is emptied. good.

In the present embodiment, the remaining amount recognition unit 60 is a window hole portion 12h. The user can visually recognize the band 30 from the lower surface of the bottom wall portion 12a through the window hole portion 12h. More specifically, the user can visually recognize the annulus portion 31 of the band 30 through the window hole portion 12h. In the unused state, the user can visually recognize the colored portion 31a of the annular portion 31 through the window hole portion 12h.

Next, a method of discharging the content W from the middle plate raising type discharge container 1 shown in FIG. 1 configured as described above will be described.
First, remove the overcap 8.
Next, the pressing head 11 is pressed to move the stem 15 downward with respect to the cylinder 14. As a result, the piston 20 moves downward in the cylinder 14 in a state where the communication hole 16a formed in the piston guide 16 is opened and the lower end opening 14a of the cylinder 14 is closed. As a result, the content W in the cylinder 14 is pressurized and transferred, and the content W in the cylinder 14 is discharged from the discharge hole 11a of the pressing head 11 through the communication hole 16a, the piston guide 16, and the stem 15. NS.

After that, when the pressing of the pressing head 11 is released, the piston 20 rises in the cylinder 14 with the communication hole 16a closed and the lower end opening 14a of the cylinder 14 opened. More specifically, the piston 20 in the cylinder 14 is restored and moved upward in the cylinder 14 by the upward urging force of the urging member 21. As a result, the pressure inside the cylinder 14 is reduced, and the content W contained in the liquid chamber 5A flows into the cylinder 14. When the content W in the liquid chamber 5A flows into the cylinder 14, the content W in the liquid chamber 5A decreases, so that the pressure inside the liquid chamber 5A becomes negative. Due to this negative pressure, the middle plate 7 is pulled up to the liquid chamber 5A side (upper side), and the middle plate 7 moves up while the sliding cylinder 4 is in sliding contact with the inner peripheral surface of the body portion 5. As a result, the volume in the liquid chamber 5A is reduced, and the pressure change occurring in the liquid chamber 5A can be compensated. Further, at this time, since the liquid chamber 5A is hermetically sealed by the packing 23 and the sliding cylinder 4 of the inner plate 7, the outside air does not flow into the liquid chamber 5A. Therefore, the upward movement of the middle plate 7 can compensate for the pressure change in the liquid chamber 5A without allowing the outside air to flow into the liquid chamber 5A. As a result, it is possible to prevent the inside of the liquid chamber 5A from being in a negative pressure state and maintain a good discharge operation, and it is possible to prevent the content W from being deteriorated by being exposed to the outside air.

When the content W is discharged by repeating pressing and releasing the pressing head 11 as described above, the middle plate 7 gradually moves upward as the content W decreases. Ascending movement of the middle plate 7 is restricted by the upper surface of the lower wall portion 27 of the partition wall 6 coming into contact with the lower end of the cylinder 14.
In the present embodiment, the through hole 12c is formed in the bottom wall portion 12a, and the lower space 5B in the body portion 5 communicates with the outside of the container body 2 through the through hole 12c, so that the middle plate 7 rises. Even if the volume of the lower space 5B increases due to movement, it is possible to prevent the inside of the lower space 5B from becoming negative pressure.

When the middle plate 7 moves upward, as shown in FIG. 6, the spiral portion 32 is sequentially lifted upward from the inner peripheral end portion 32b side through the passage hole 50 via the connecting portion 33 connected to the middle plate 7. Will be done. That is, the band 30 sequentially passes through the passage holes 50 and is fed upward as the middle plate 7 moves upward.
When the spiral portion 32 is lifted, the inner peripheral portion of the spiral portion 32 from the inner peripheral end portion 32b to the outer peripheral end portion 32a side to about 3 turns is radially inside the protruding portion 41 in the passage hole 50. Since it overlaps the portion in the vertical direction, it is sequentially lifted above the band retainer 40 through the passage hole 50.

Then, when the spiral portion 32 is lifted to the front of the portion where the protruding portion 41 is arranged upward, the spiral portion 32 comes into contact with the edge of the protruding portion 41, that is, the band contact portion 42. In this state, when the middle plate 7 is further moved upward, a circumferential force is applied from the spiral portion 32 to the band retainer 40 via the band contact portion 42, as shown in FIG. In FIG. 7, a force is applied to the band retainer 40 in a counterclockwise direction about the container axis O in a top view. Since the band retainer 40 is rotatably arranged, it rotates around the container shaft O when a force in the circumferential direction is applied. As a result, the spiral portion 32 in contact with the band contact portion 42 is sequentially lifted above the band retainer 40 through the passing hole 50. In this way, the spiral portion 32 is sequentially lifted from the inner peripheral end portion 32b in accordance with the ascending movement of the middle plate 7. As the spiral portion 32 is lifted, the position of the portion of the band contact portion 42 that the spiral portion 32 abuts changes to the outside in the radial direction.

When the spiral portion 32 is sequentially lifted as described above, a predetermined portion of the spiral portion 32 in which the hole portion 32c is formed is also lifted. As a result, the hole portion 32c moves upward, the rotation restricting rib 12f is removed from the hole portion 32c, and the engagement between the hole portion 32c and the rotation restricting rib 12f is released. Therefore, the band 30 is in a state of being rotatable in the circumferential direction. In this state, when the spiral portion 32 is further lifted, the band 30 itself also rotates in the circumferential direction. Therefore, the position of the colored portion 31a in the circumferential direction is displaced from the bottom wall portion 12a, and the colored portion 31a moves to a position where the colored portion 31a does not overlap with the window hole portion 12h in the vertical direction. As a result, the portion that overlaps the window hole portion 12h in the vertical direction becomes a portion of the band 30 other than the colored portion 31a. Therefore, when the spiral portion 32 is lifted to some extent, the color of the band 30 that can be visually recognized through the window hole portion 12h changes, and the user can see the difference in color, that is, the degree to which the spiral portion 32 is lifted, that is, the contents. The remaining amount of W can be recognized.

As described above, according to the present embodiment, the user can recognize the remaining amount of the content W by the remaining amount recognizing unit 60 provided on the bottom wall portion 12a. Since the lower surface of the bottom wall portion 12a serves as a ground contact surface when the middle plate raising type discharge container 1 is placed, the remaining amount recognition unit 60 is displayed by the user when the middle plate raising type discharge container 1 is placed. Not visible. As a result, it is possible to prevent the appearance of the middle plate raising type discharge container 1 from being deteriorated as compared with the case where the remaining amount recognition unit 60 is provided on the body portion 5. Therefore, according to the present embodiment, it is possible to obtain the middle plate raising type discharge container 1 capable of recognizing the remaining amount of the contents while suppressing the deterioration of the appearance.

Further, as in the present embodiment, since the remaining amount recognition unit 60 is the window hole portion 12h, the user can easily recognize that the remaining amount of the content W has reached a predetermined remaining amount. Specifically, the hole portion 32c is formed in a predetermined portion of the spiral portion 32 that is lifted when the remaining amount of the content W reaches a predetermined remaining amount. As a result, the predetermined portion in which the hole portion 32c is formed is lifted and the colored portion 31a is displaced in the circumferential direction, so that the user recognizes that the remaining amount of the content W is equal to or less than the predetermined remaining amount. can. Since the hole portion 32c of the present embodiment is formed in a predetermined portion of the spiral portion 32 that is lifted when the remaining amount of the content W becomes small, the user can replace the middle plate raising type discharge container 1. You can easily recognize the time.

Further, for example, when the spiral portion 32 is not sequentially lifted and the outer peripheral portion is lifted earlier than the inner peripheral portion, the predetermined portion of the spiral portion 32 in which the hole portion 32c is formed may be lifted first. .. In such a case, before the remaining amount of the content W becomes equal to or less than the predetermined remaining amount, the band 30 rotates and the colored portion 31a shifts in the circumferential direction, and the user correctly recognizes the remaining amount of the content W. It may not be possible. On the other hand, according to the present embodiment, the band retainer 40 is arranged on the band body 30 in which a passage hole 50 for sequentially extending the spiral portion 32 upward is formed. Therefore, the portion of the spiral portion 32 (the predetermined portion where the hole portion 32c is formed) that should not be lifted yet is pressed from above by the band retainer 40 (protruding portion 41), is suppressed from being lifted, and is lifted. The portion of the power spiral portion 32 is sequentially lifted through the passage hole 50. In this way, the spiral portion 32 can be reliably lifted from the inner peripheral portion side according to the decrease in the remaining amount of the content W, so that the predetermined portion of the spiral portion 32 in which the hole portion 32c is formed is formed. It is possible to prevent the content W from being lifted before the remaining amount becomes less than the predetermined remaining amount. Therefore, the user can correctly recognize the remaining amount of the content W.

Further, since the band retainer 40 is rotatably arranged, it rotates as the spiral portion 32 is lifted, and does not hinder the feeding of the spiral portion 32 through the passage hole 50. Further, since the band retainer 40 rotates as the spiral portion 32 is lifted, the circumferential position of the protruding portion 41 can be changed according to the degree to which the spiral portion 32 is lifted. As a result, the portion of the spiral portion 32 that should not be lifted yet can be suitably pressed by the protruding portion 41.
Further, since the band retainer 40 is restricted from moving upward by the locking rib 12e at the bottom portion 12, the spiral portion 32 is prevented from being lifted and the band retainer 40 is suppressed from rising. As a result, the band retainer 40 can suitably press the portion of the spiral portion 32 that should not be lifted yet.

Further, the belt body 30 is restricted in rotation by the rotation restricting ribs 12f arranged on the bottom portion 12 in a state before the predetermined portion of the spiral portion 32 in which the hole portion 32c is formed is extended upward. Therefore, even if the spiral portion 32 is sequentially lifted, it is possible to suppress the rotation of the band 30 until a predetermined portion of the spiral portion 32 in which the hole portion 32c is formed is lifted. As a result, it is possible to prevent the band 30 from rotating and the colored portion 31a from shifting in the circumferential direction before the remaining amount of the content W becomes equal to or less than the predetermined remaining amount.
Further, according to the present embodiment, since the remaining amount recognition unit 60 includes the window hole portion 12h, the coloring portion 31a can be visually recognized through the window hole portion 12h, and the remaining amount of the content W can be determined. Can be recognized.
Further, according to the present embodiment, a plurality of projecting portions 41 are provided along the circumferential direction. Therefore, it is easy to align the circumferential position of the protruding portion 41 with respect to the predetermined portion of the spiral portion 32 in which the hole portion 32c is formed.

The technical scope of the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.
Each roll in the spiral portion 32 does not have to be in contact with adjacent rolls. The number of protrusions 41 is not particularly limited. Only one protrusion 41 may be provided. Further, in the bottom portion 12, the bottom wall portion 12a and the tubular portion 12b may be separate members.

Further, the coloring portion 31a may be provided in the spiral portion 32. In this case, the colored portion 31a is provided on the front side in the winding direction with respect to the predetermined portion of the spiral portion 32 in which the hole portion 32c is formed. Further, in the above embodiment, the visible portion is the colored portion 31a, but the present invention is not limited to this. The visual recognition unit is not particularly limited as long as the user can recognize that the band 30 has rotated and a part of the band 30 visible from the remaining amount recognition unit 60 has changed. The visual recognition unit may be, for example, a recognition mark provided on the band 30. In this case, for example, when the band 30 is displaced in the circumferential direction and the recognition mark cannot be visually recognized from the window hole portion 12h, the user indicates that the remaining amount of the content W is equal to or less than the predetermined remaining amount. Can be recognized. Further, the visual recognition portion may be a notch provided in the band 30.
Further, for example, when the band 30 rotates, the band 30 may not be visible from the remaining amount recognition unit 60. In this case, the portion of the band 30 that can be visually recognized from the remaining amount recognition unit 60 before the band 30 rotates corresponds to the visual recognition unit. In this case, the user can recognize that the remaining amount of the content W is equal to or less than the predetermined remaining amount when the band 30 cannot be visually recognized from the remaining amount recognition unit 60. Further, before the band 30 rotates, the band 30 cannot be visually recognized from the remaining amount recognition unit 60, and when the band 30 rotates, a part of the band 30 can be visually recognized from the remaining amount recognition unit 60. There may be. In this case, the user can recognize that the remaining amount of the content W is equal to or less than the predetermined remaining amount when the band 30 becomes visible from the remaining amount recognition unit 60.

Further, in the above embodiment, when the visual recognition unit (colored portion 31a) cannot be visually recognized from the remaining amount recognition unit 60 (window hole portion 12h), the remaining amount of the content W becomes equal to or less than the predetermined remaining amount. The configuration is such that the user can recognize this, but the configuration is not limited to this. For example, when the visual recognition unit (colored portion 31a) can be visually recognized from the remaining amount recognition unit 60 (window hole portion 12h), the user indicates that the remaining amount of the content W is equal to or less than the predetermined remaining amount. May be a configuration that can be recognized. In this case, the visual recognition portion is provided on a part of the band body 30 that can be visually recognized through the window hole portion 12h when the hole portion 32c is displaced from the rotation restricting rib 12f and the band body 30 is displaced in the circumferential direction.

Further, the remaining amount recognition unit 60 may include a transparent unit that transmits visible light in the vertical direction instead of the window hole portion 12h. In this case, the user can visually recognize the colored portion 31a through the transparent portion. The transparent portion is provided by, for example, a part of the bottom wall portion being made of a transparent material.
In the present specification, when a certain member transmits visible light, at least a part of the visible light transmits a certain member, and at least a part of another member arranged across the certain member can be visually recognized. Including being.

Further, the hole portion 32c may be formed at any position of the spiral portion 32 as long as it is provided in the spiral portion 32. By adjusting the position where the hole portion 32c is formed, the remaining amount of the content W when the rotation restriction of the band 30 is released can be adjusted, and the user can adjust the remaining amount of the content W via the remaining amount recognizing unit 60. The remaining amount of the recognizable content W can be adjusted. Specifically, for example, by providing the position of the hole portion 32c at the center of the spiral portion 32 in the winding direction, the user recognizes that the content W has been reduced to half or less through the remaining amount recognition unit 60. can.

Further, for example, the overcap 8, the bottom 12, and the packing 23 may be omitted.
Further, the sliding cylinder 4 of the inner plate 7 is not limited to the one shown in each of the above actual embodiments as long as it is slidably fitted in the container body 2, for example, sliding. The entire outer peripheral surface of the cylinder 4 may come into contact with the inner peripheral surface of the body portion 5, or the abutting portion over the entire circumference may be formed only on a part of the outer peripheral surface of the sliding cylinder 4.
Further, as long as the partition wall 6 of the middle plate 7 closes the inside of the sliding cylinder 4 and partitions the inside of the body 5 into the upper liquid chamber 5A and the lower lower space 5B, each of the above embodiments It is not limited to the one shown in the above, and may be, for example, a disk-shaped body that closes the inside of the sliding cylinder 4.

Further, in each of the above embodiments, the pump 3 is provided with the mounting cap 13, but if the pump 3 is assembled to the container body 2, the mounting cap 13 may not be provided. Further, even when the mounting cap 13 is provided, it is not limited to the one shown in each of the above embodiments.

Further, the content contained in the body of each of the above-described embodiments is not particularly limited as long as it is a fluid and dischargeable substance.
In addition, the configurations described above can be appropriately combined within a range that does not contradict each other.

1 ... Middle plate rising discharge container, 2 ... Container body, 3 ... Pump, 5 ... Body, 7 ... Middle plate, 11 ... Pushing head, 11a ... Discharge hole, 12 ... Bottom, 12a ... Bottom wall, 12b ... Cylinder part, 12e ... Locking rib, 12f ... Rotation control rib, 12h ... Window hole part, 15 ... Stem, 29 ... Engaging claw part, 30 ... Band, 31a ... Colored part (visual part), 32 ... Swirl part , 32b ... Inner peripheral end, 32c ... Hole, 33 ... Connecting part, 41 ... Protruding part, 50 ... Passing hole, 60 ... Remaining amount recognition part, W ... Contents

Claims (4)

A container body having a body portion in which the contents are housed and a bottom portion fitted and fixed in the lower end portion of the body portion.
With a stem mounted so as to be movable downward in an upwardly urged state, and a pump mounted on the upper end of the stem and having a pressing head formed with a discharge hole for the contents, and mounted on the upper part of the body portion. ,
A middle plate that is slidably fitted in the body and rises in the body when the contents are discharged.
With
An engaging claw portion protruding downward is arranged on the lower surface of the inner plate.
A spiral portion that is wound so as to exhibit a spiral shape in a top view on the bottom portion, and a spiral portion that projects upward toward the inner peripheral end portion of the spiral portion and is engaged with the engaging claw portion to be engaged in the middle portion. A band with a connecting part connected to the dish is arranged,
On the band, a band retainer that is rotatably arranged in a state where ascending movement is restricted is arranged.
The bottom is
The bottom wall where the band is placed on the upper surface, and
A tubular portion that protrudes upward from the band retainer from the outer peripheral edge portion of the bottom wall portion and is fitted in the lower end portion of the body portion.
A plurality of locking ribs protruding inward in the radial direction from a portion of the tubular portion located above the band retainer,
Rotation-regulating ribs protruding upward from the bottom wall,
With
The plurality of locking ribs are arranged at equal intervals along the circumferential direction, and lock the band retainer from above to regulate the ascending movement of the band retainer.
The band retainer includes a passage hole through which the band body sequentially passes and is extended upward as the middle plate moves upward, and a protrusion portion that protrudes radially inward from the inner peripheral edge portion of the passage hole. Is formed,
A hole is formed in a predetermined portion of the spiral portion that is fed upward through the passage hole.
In a state before the predetermined portion is fed upward through the passage hole, the rotation restricting rib is engaged with the inside of the hole portion to restrict the rotation of the band in the circumferential direction.
In a state after the predetermined portion is extended upward through the passage hole, the engagement between the hole portion and the rotation restricting rib is released, and the band becomes rotatable in the circumferential direction.
The middle plate raising type is provided on the bottom wall portion with a remaining amount recognizing unit capable of recognizing the remaining amount of the contents by being able to visually recognize the visually recognizing part provided on the band. Discharge container. The middle plate raising type discharge container according to claim 1, wherein the remaining amount recognition unit includes a window hole portion that penetrates the bottom wall portion in the vertical direction. The middle plate raising type discharge container according to claim 1 or 2, wherein the remaining amount recognition unit includes a transparent unit that transmits visible light in the vertical direction. The middle plate raising type discharge container according to any one of claims 1 to 3, wherein a plurality of the protruding portions are provided along the circumferential direction.

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