JP2018034822A - Screw unit and screw container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely and easily discriminate whether or not screwing of a second screw member with respect to a first screw member is released.SOLUTION: A screw unit 8 includes: a first screw member 40; a second screw member 7 screwed to the first screw member; and a restriction member 80 for restricting relative movement of the first screw member and the second screw member in the circumferential direction along a screw shaft O. The restriction member includes: a slide hole 70 formed at one of the screw members; and an engaging part 81 formed at the other screw member and engaged with a part 47 to be engaged. The slide hole extends in the cross direction crossing the circumferential direction. The restriction member is arranged movably along the slide hole, in a state where the movement in the circumferential direction is restricted, from a restriction position P3 in which the engaging part is engaged with the part to be engaged to a release position in which the engagement between the engaging part and the part to be engaged is released. Between the engaging part and the slide hole, a slide restriction part 86 is disposed which permits movement of the restriction member from the restriction position to the release position and restricts the movement in the reverse direction.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a screw unit and a screw container including the screw unit.

  Conventionally, a first screw member in which a first screw part (female screw part or male screw part) is formed, and a second screw part (male screw part or female screw part) corresponding to the first screw part are formed, and the first screw member A screw unit having a second screw member to be screwed is widely known. Various products, devices, etc. using this type of screw unit are also known.

  For example, as a screw container using a screw unit, the container main body that contains the contents, a top cylindrical mounting cap attached to the mouth of the container main body, and the mounting cap can be moved downward in an upward biased state A pump having a stem penetrating in the head, and a pressing head mounted on the upper end portion of the stem and having a discharge hole formed therein. There is known a discharge container provided with a restriction cylinder for restricting the upward movement of the head and the stem. The restriction cylinder is a first screw member, and a pressing head screwed onto the restriction cylinder is a second screw portion.

  Further, in this type of discharge container, for example, when the product is distributed or not in use, the discharge container is positioned at the lower end position in order to prevent the contents from being discharged by an external force applied intentionally or unexpectedly. There is also known a configuration including a cover cylinder that covers a pressing head (see, for example, Patent Document 1 below).

JP 2006-89110 A

  However, in the conventional screw unit, when the screwing of the second screw member to the first screw member is released and then the second screw member is screwed again and screwed to the first screw member, the screwing of the second screw member is performed. It was difficult to determine whether or not wearing was released.

The same applies to the conventional discharge container.
For example, when the cover cylinder is removed, whether or not the pressing head is unscrewed from the regulation cylinder (first screw member) even if the pressing head (second screw member) is positioned at the lower end position. (That is, whether or not an opening operation has been performed) is difficult.

Specifically, after the cover cylinder is removed, the pressing head is rotated in the loosening direction with respect to the regulation cylinder, so that the screwing of the pressing head to the regulation cylinder can be released. It can be moved upward. Thereby, the pressing operation of the pressing head can be performed, and for example, the discharge operation of the contents can be performed. Then, the pressing head and the stem are moved downward, and the pressing head located at the lower end position is rotated in the tightening direction with respect to the regulation cylinder, so that the pressing head is screwed again to the regulation cylinder. Is possible.
Therefore, even if the pressing head is located at the lower end position, it is difficult to determine whether or not the pressing head is already screwed to the restriction cylinder.

  This invention is made | formed in view of such a situation, Comprising: The objective can determine easily and reliably whether the screwing of the 2nd screw member with respect to the 1st screw member was cancelled | released. It is providing a screw unit and a screw container provided with the same.

(1) The screw unit according to the present invention includes a first screw member, a second screw member screwed to the first screw member, the first screw member in the circumferential direction around the screw axis, and the first screw member. A restricting member that restricts relative movement with respect to the two screw members, and the restricting member includes a slide hole formed in one of the first screw member and the second screw member, and An engaging portion that engages with an engaged portion formed on the other screw member, the slide hole extends in an intersecting direction intersecting the circumferential direction, and the restricting member includes From the restricting position at which both the slide hole and the engaged portion are engaged, the engaging portion is engaged with the slide hole, and the release position is released from the engaged portion. Can be moved along the slide hole in a state where movement in the circumferential direction is restricted. A slide restricting portion that is disposed between the engaging portion and the slide hole and that allows the restricting member to move from the restricting position to the release position and restricts movement in the opposite direction. Is arranged.

According to the screw unit of the present invention, when the restricting member is located at the restricting position, the engaging portion is engaged with both the slide hole and the engaged portion. The first screw member and the second screw member can be integrally connected. Thereby, since the relative movement of the 1st screw member and the 2nd screw member to the peripheral direction can be controlled using a control member, rotation control of the 2nd screw member to the 1st screw member is performed. Can do.
When the restricting member is moved from the restricting position to the release position (sliding) along the slide hole, the engaging part is disengaged from the engaged part while engaging with the slide hole, and the engaging part is engaged with the engaged part. The engagement of the joint is released. Thereby, since the rotation restriction | limiting of a 1st screw member and a 2nd screw member can be cancelled | released, a 2nd screw member is rotated with respect to a 1st screw member, and the 2nd screw member with respect to a 1st screw member is Screwing can be released.

  In particular, since the slide restricting portion is disposed between the engaging portion and the slide hole, once the restricting member is positioned at the release position, the restricting member is moved in the reverse direction from the release position to return to the restricting position. I can't. Therefore, it can be visually recognized that the position of the restricting member with respect to the one screw member in which the slide hole is formed has changed. Therefore, it is possible to easily and reliably determine whether or not the screwing of the second screw member to the first screw member has been released based on the change in the position of the restricting member.

(2) A screw container according to the present invention includes an above-described screw unit, a container main body in which contents are stored, a mounting cap mounted on the mouth of the container main body, and an upward bias inside the mounting cap. A pump having a stem inserted so as to be movable downward in a state, a pressing head mounted on an upper end portion of the stem and having a discharge hole for discharging contents, and the pressing head positioned at a lower end position And a restricting cylinder that restricts upward movement of the pressing head and the stem, wherein the first screw member is the restricting cylinder, and the second screw member is the pressing head. .

  According to the screw container of the present invention, when the pressing head is located at the lower end position, the relative movement between the regulating cylinder and the pushing head in the circumferential direction can be regulated by the regulating member. The rotation of the pressing head can be restricted. Therefore, it is possible to prevent the pressing head from being intentionally or unexpectedly rotated. Therefore, for example, when the product is distributed or not used, the pressing head rotates in the loosening direction with respect to the restriction cylinder, and the screwing of the pressing head to the restriction cylinder is prevented from being intentionally or unexpectedly released. be able to.

  When discharging the contents, the rotation restriction between the restriction cylinder and the pressing head can be released by moving the restriction member from the restriction position to the release position. Thereby, the pressing head can be rotated in the loosening direction with respect to the restriction cylinder, and the pressing head can be released from the lowering end position to the rising end position by releasing the screwing of the pressing head with respect to the restriction cylinder. As a result, the pressing head can be shifted to a state where it can be pressed down, and the contents can be discharged.

  In particular, once the restricting member is positioned at the release position, it cannot be returned to the restricting position. Therefore, even if the pressing head is screwed to the restricting cylinder at the lowered end position, the restricting member is controlled based on the position change of the restricting member. It is possible to easily and reliably determine whether or not the pressing head is not screwed to the cylinder, that is, whether or not the opening operation has been performed.

(3) A screw container according to the present invention includes the above screw unit, wherein the first screw member is a container body in which contents are accommodated, and the second screw member is a lid attached to the container body. It may be a body.

  The screw container according to the present invention can be applied to, for example, a jar container that contains contents such as cosmetic cream, and can easily and reliably determine whether or not the lid has been opened.

  According to the present invention, whether or not the screwing of the second screw member to the first screw member has been released based on the change in the position of the restricting member (whether it is located at the restricting position or at the releasing position). Can be determined easily and reliably.

It is a semi-longitudinal sectional view showing a first embodiment of a discharge container (screw container) according to the present invention. It is a top view of the discharge container shown in FIG. It is the side view which looked at the discharge container shown in FIG. 1 from the regulating member side. It is sectional drawing along the AA line shown in FIG. It is the perspective view which looked at the ring body shown in FIG. 1 from the mark part side. FIG. 5 is a cross-sectional view illustrating a state in which the ring body is half-rotated in the second rotation direction from the state illustrated in FIG. 4. It is a figure which shows the state just before combining the control member shown in FIG. 1 with a control cylinder and a pressing head. It is a side view of the control member shown in FIG. It is a side view which shows the state which moved the control member to the cancellation | release position from the state shown in FIG. It is a semi-longitudinal sectional view showing a second embodiment of a discharge container (screw container) according to the present invention. It is a top view of the discharge container shown in FIG. It is the side view which looked at the discharge container shown in FIG. 10 from the regulating member side. It is a side view which shows the state which moved the control member to the cancellation | release position from the state shown in FIG. It is a longitudinal cross-sectional view which shows the modification of the screw container which concerns on this invention. It is a top view of the screw container shown in FIG. It is the side view which looked at the screw container shown in FIG. 14 from the regulating member side.

(First embodiment)
Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.

  As shown in FIGS. 1 to 3, a discharge container (screw container) 1 according to this embodiment is mounted on a bottomed cylindrical container body 2 in which contents are stored, and a mouth portion 12 of the container body 2. A cylindrical mounting cap 3, a pump 5 having a stem 4 inserted inside the mounting cap 3 so as to be movable downward in an upward biased state, and an upper end portion of the stem 4 are mounted, and the contents are discharged. A pressing head 7 in which a discharge hole 6 is formed and a screw unit 8 are provided.

  When the stem 4 and the pressing head 7 are not in use, the stem 4 and the pressing head 7 are positioned at the lower end position P1 as shown in FIG. 1, and the pressing head 7 is held by screwing into a regulation cylinder 40 described later. Ascending movement is restricted in this state. On the other hand, in the use stage, the pressing head 7 is positioned at the rising end position P2 together with the stem 4 and shifts to a standby state for pressing.

  In addition, the container main body 2, the mounting cap 3, and the stem 4 are disposed in a state where the central axes thereof are located on a common axis. In the present embodiment, this common axis is referred to as a container axis O, the pressing head 7 side along the container axis O is referred to as the upper side, and the bottom side of the container body 2 is referred to as the lower side. Further, in a plan view viewed from the container axis O direction, a direction orthogonal to the container axis O is referred to as a radial direction, and a direction around the container axis O is referred to as a circumferential direction. Furthermore, in the circumferential direction, the direction in which the container axis O rotates clockwise in a top view of the discharge container 1 is referred to as a first rotation direction M1, and the opposite side is referred to as a second rotation direction M2. The container shaft O corresponds to the screw shaft in the screw unit 8.

As shown in FIG. 1, the container body 2 is formed in a bottomed cylindrical shape having a bottom portion, a trunk portion 10, a shoulder portion 11, and a mouth portion 12 (not shown). In the illustrated example, the upper end portion of the body portion 10 is formed so as to gradually increase in diameter toward the connecting portion with the shoulder portion 11, and the shoulder portion 11 is formed so as to project outward in the radial direction.
However, the shape of the container body 2 is not limited to this case. Moreover, as a shape of the trunk | drum 10, for example, a cross-sectional view circular shape, an ellipse shape, and a polygonal shape may be sufficient, and it is not limited to a specific shape.

  The mouth portion 12 has a first mouth portion 12a that extends upward from the shoulder portion 11 and a top portion that extends further upward from the upper end portion of the first mouth portion 12a, and is smaller in diameter than the first mouth portion 12a. And a two-stage cylinder having a two-portion portion 12b.

  A first screw portion 13 to which the mounting cap 3 is screwed is formed on the outer peripheral surface of the second mouth portion 12b. The first screw portion 13 is formed in a spiral shape so that the mounting cap 3 is tightened when the mounting cap 3 is rotated relative to the container body 2 in the first rotation direction M1. Therefore, the second rotation direction M2 is the loosening direction of the mounting cap 3.

On the outer peripheral surface on the lower end side of the first opening 12a, a plurality of two stopper protrusions 14 and 15 protruding outward in the radial direction are formed at intervals in the circumferential direction.
As shown in FIG. 4, the stopper protrusions 14 and 15 are formed with an interval of 180 degrees in the circumferential direction. However, the circumferential interval between the stopper protrusions 14 and 15 is not limited to this case, and may be set freely.

  One stopper projection 14 is a stopper surface 14a whose peripheral end surface facing the second rotation direction M2 is vertical. On the other hand, the other stopper projection 15 is a stopper surface 15a whose peripheral end surface facing the first rotation direction M1 is vertical. Thereby, the stopper surface 14a of one stopper protrusion 14 and the stopper surface 15a of the other stopper protrusion 15 are in a relationship facing each other in the circumferential direction.

  As shown in FIG.1 and FIG.4, the annular protrusion 16 protruded toward the radial direction outer side is formed in the outer peripheral surface in the upper end part side of the 1st opening part 12a. In the annular protrusion 16, a molding hole for forming the stopper protrusions 14, 15 is formed in a portion located above the two stopper protrusions 14, 15 described above.

The ring body 20 is extrapolated to the first mouth portion 12a configured as described above.
As shown in FIGS. 1, 4, and 5, the ring body 20 includes a ring body 21 that surrounds the first mouth portion 12 a from the radially outer side, and a radially inner side projecting from the inner peripheral surface of the ring body 21. In addition, a plurality of protruding pieces 22 formed at intervals in the circumferential direction, and disposed below the protruding pieces 22, are formed so as to protrude radially inward from the inner peripheral surface of the ring body 21. And a plurality of first locking protrusions 24 that protrude from the outer peripheral surface of the ring body 21 toward the radially outer side and that are formed at intervals in the circumferential direction.

  The ring main body 21 surrounds the first opening 12a with a gap between the ring opening 21 and the first opening 12a. The protruding piece 22 protrudes radially inward from an intermediate portion of the ring body 21 in the container axis O direction, and is formed so as to gradually extend upward as it goes radially inward. The outer end portion of the protrusion piece 22 is locked from below with respect to the annular protrusion 16 formed in the first mouth portion 12a. Thereby, the ring body 20 surrounds the first mouth portion 12a in a state in which the ring body 20 is prevented from coming off upward.

  The stopper pin 23 is disposed so as to be positioned between the stopper surface 14 a of one stopper protrusion 14 and the stopper surface 15 a of the other stopper protrusion 15. In the illustrated example, the stopper pin 23 is engaged with the stopper surface 14a of one stopper protrusion 14 from the circumferential direction. Thereby, the ring body 20 is combined with the mouth portion 12 of the container body 2 in a state in which the rotation in the first rotation direction M1 is restricted.

The ring body 20 is allowed to rotate in the second rotation direction M2 with respect to the mouth portion 12 of the container body 2.
However, as shown in FIG. 6, when the ring body 20 makes a half rotation in the second rotation direction M <b> 2 with respect to the first mouth portion 12 a of the container body 2, the stopper pin 23 is against the stopper surface 15 a of the other stopper protrusion 15. Accordingly, the ring body 20 is restricted from rotating in the second rotation direction M2, and thus cannot move further in the second rotation direction M2.

As shown in FIGS. 4 and 5, a mark portion 25 is formed on the outer peripheral surface of the ring main body 21 at a portion located on the opposite side of the stopper pin 23 in the radial direction.
The mark portion 25 is not particularly limited. For example, the mark portion 25 may be formed by decorating a different color from the other portions of the ring main body 21. By marking, printing, sticking a sticker, etc. It may be formed by giving some notation.

In the illustrated example, the ring main body 21 itself is formed in blue, and the mark portion 25 is formed by applying red decoration over a certain range of the outer peripheral surface of the ring main body 21. In FIG. 5, the mark portion 25 is illustrated by dot-shaped hatching.
Further, when the mark portion 25 is formed by some notation, for example, a kanji notation such as “open” or an English notation such as “OPEN” may be used.

The first locking projections 24 are formed such that the circumferential length along the circumferential direction is longer than the protruding amount radially outward from the outer circumferential surface of the first mouth portion 12a, and along the container axis O. It is formed in the shape of a vertically long plate.
A first peripheral end surface of the first locking projection 24 facing the first rotation direction M1 is a vertical locking surface 24a. On the other hand, the 2nd peripheral end surface which faces the 2nd rotation direction M2 side among the 1st latching protrusions 24 is made into the inclined surface 24b extended gradually inside radial direction as it goes to the 2nd rotation direction M2.

  As shown in FIG. 1, the pump 5 is held by the mounting cap 3 in a state of being inserted into the stem 4 and the mouth portion 12 of the container body 2, and the cylinder 30 is erected upward. And a piston (not shown) that is linked to the stem 4 and is fitted in the cylinder 30 so as to be slidable up and down.

The cylinder 30 is arranged coaxially with the container axis O, and is formed in a multistage cylindrical shape having a diameter reduced stepwise from the upper side toward the lower side.
At the upper end of the cylinder 30, a flange portion 31 that protrudes radially outward is formed in an annular shape over the entire circumference of the cylinder 30. The flange portion 31 is disposed on the upper end opening edge of the mouth portion 12 of the container body 2 via a packing 32. Thereby, the cylinder 30 is supported in a state of being inserted into the mouth portion 12 of the container body 2.

  Further, the cylinder 30 is formed with a projecting cylindrical portion 33 extending upward from the inner peripheral edge of the flange portion 31 coaxially with the container axis O, and at a portion positioned below the flange portion 31 in the container body. An air hole 34 that communicates the inside of the cylinder 2 with the inside of the cylinder 30 is formed. A suction cylinder 35 extending downward is formed at the lower end of the cylinder 30 simultaneously with the container shaft O. A tube body 36 for sucking up the contents is fitted in the suction cylinder portion 35.

  In the cylinder 30, a valve member (not shown) for opening and closing the lower end opening of the cylinder 30 and a coil spring (biasing means) (not shown) for biasing the stem 4 upward are disposed.

  The valve member is disposed so as to be located above the tube body 36. The valve member is a check valve that keeps the lower end opening of the cylinder 30 closed when the cylinder 30 is pressurized and opens the lower end opening of the cylinder 30 when the pressure in the cylinder 30 is reduced. This restricts the contents in the cylinder 30 from returning to the container body 2 through the lower end opening of the cylinder 30 when the cylinder 30 is pressurized, and the contents in the container body 2 when the cylinder 30 is depressurized. Is allowed to flow into the cylinder 30 through the lower end opening of the cylinder 30.

  The piston is in close sliding contact with the inner peripheral surface of the cylinder 30 and moves up and down in the cylinder 30 along with the stem 4. The coil spring described above is disposed, for example, between a piston and a valve member, and biases the stem 4 upward via the piston. On the stem 4 in the cylinder 30, an annular space defined between the stem 4 and the cylinder 30 and communicating with the air hole 34 is formed.

Further, the pump 5 according to the present embodiment includes a pressing head 7 positioned at the lower end position P1, and a pressing cylinder 7 that controls the upward movement of the pressing head 7 and the stem 4 positioned at the lower end position P1. And a seal cylinder 41 that closes the air hole 34 of the cylinder 30 when the head 7 is positioned at the descending end position P1.
However, the present invention is not limited to this case, and the mounting cap 3 may include the regulation cylinder 40 and the seal cylinder 41. The regulation cylinder 40 is configured separately from the mounting cap 3 and the pump 5. It doesn't matter.

Note that after the mounting cap 3 is described first, the regulation cylinder 40 and the seal cylinder 41 will be described.
As shown in FIGS. 1 to 3, the mounting cap 3 is connected to the upper tube portion 50, the lower tube portion 51 connected to the lower end portion of the upper tube portion 50, and the upper end portion of the upper tube portion 50. And an annular top wall portion 52.

  The top wall portion 52 is disposed on the flange portion 31 of the cylinder 30. As a result, the cylinder 30 is held by the mounting cap 3 and prevented from being pulled upward. Note that the projecting cylindrical portion 33 of the cylinder 30 is inserted inside the top wall portion 52.

The upper cylinder part 50 surrounds the 2nd opening part 12b of the container main body 2 from the radial direction outer side. A second screw portion 53 that is screwed to the first screw portion 13 formed in the second mouth portion 12 b of the container body 2 is formed on the inner peripheral surface of the upper cylinder portion 50.
The lower cylinder part 51 is formed to have a larger diameter than the upper cylinder part 50, and surrounds the first mouth part 12a and the ring body 20 of the container body 2 from the outside in the radial direction. Under the present circumstances, the lower cylinder part 51 surrounds the ring body 20 in the state which opened the clearance gap between the ring bodies 20. As shown in FIG.

The lower cylinder part 51 is formed with a window part 54 that penetrates the lower cylinder part 51 in the radial direction.
The window portion 54 is formed so as to be positioned on the radially outer side of the one stopper projection 14 formed in the first mouth portion 12 a of the container body 2. In the illustrated example, the window portion 54 is formed in a square shape in a side view. Through this window portion 54, the outer peripheral surface of the ring main body 21 and the mark portion 25 can be viewed from the outside of the mounting cap 3.
However, the shape of the window portion 54 is not limited to this case, and may be, for example, a circular shape in a side view, an elliptical shape, a polygonal shape, or the like.

As shown in FIG.1 and FIG.4, the 2nd latching protrusion which was formed in the inner peripheral surface of the upper end part in the lower cylinder part 51 toward the radial inside, and was formed in multiple numbers at intervals in the circumferential direction. 55 is formed.
In the illustrated example, the second locking projections 55 are formed in the same number as the first locking projections 24 and are formed at the same circumferential pitch as the first locking projections 24. However, the present invention is not limited to this case.

The second locking projection 55 is formed obliquely so that the peripheral end surface facing the first rotation direction M1 side is inclined corresponding to the inclined surface 24b of the first locking projection 24. As a result, the second locking protrusion 55 moves while sliding on the inclined surface 24b as the mounting cap 3 rotates in the first rotation direction M1 with respect to the mouth portion 12 of the container body 2. It is possible to get over the protrusion 24 in the circumferential direction.
Therefore, the mounting cap 3 can be tightened and screwed to the mouth portion 12 of the container body 2 in the first rotation direction M1 without being affected by the ring body 20.

  In addition, since the stopper pin 23 is locked from the circumferential direction with respect to the stopper surface 14a of the one stopper projection 14 when the mounting cap 3 is mounted, the ring body 20 is first in accordance with the rotation of the mounting cap 3. The rotation in the rotation direction M1 is restricted. Therefore, the mounting cap 3 can be rotated in the first rotation direction M1 without rotating the ring body 20, and can be screwed to the mouth portion 12 of the container body 2.

On the other hand, when the mounting cap 3 is rotated in the second rotation direction M2 with respect to the mouth portion 12 of the container body 2, the second locking projection 55 is formed on the first locking projection 24 of the ring body 20. Locks to the locking surface 24a from the circumferential direction. Thereby, the mounting cap 3 can be rotated in the second rotation direction M2 while rotating the ring body 20 together.
However, as described above, when the ring body 20 is rotated halfway in the second rotation direction M2, the stopper pin 23 is locked to the stopper surface 15a of the other stopper projection 15 from the circumferential direction as shown in FIG. The ring body 20 is restricted from rotating further in the second rotation direction M2. Therefore, the mounting cap 3 is also restricted from rotating further in the second rotation direction M2.

  When the stopper pin 23 of the ring body 20 is engaged with the stopper surface 15a of the other stopper projection 15 from the circumferential direction, the mark portion 25 moves so as to be positioned on the radially outer side of the one stopper projection 14. .

  The first locking protrusion 24 and the second locking protrusion 55 described above allow rotation of the mounting cap 3 with respect to the ring body 20 in the tightening direction (first rotation direction M1) and are mounted on the ring body 20. When the cap 3 rotates in the loosening direction (second rotation direction M2), it functions as a ratchet mechanism that restricts relative rotation between the ring body 20 and the mounting cap 3.

  As shown in FIG. 1, the regulation cylinder (first screw member) 40 is disposed inside the protruding cylinder part 33 and the outer cylinder 42 fitted (for example, undercut fitting) to the protruding cylinder part 33 of the cylinder 30. The inner cylinder 43, the outer cylinder 44 surrounding the outer cylinder 42 from the outside in the radial direction, the upper end portion of the outer cylinder 44 and the upper end portion of the outer cylinder 42 are connected in the radial direction, and the inner end portion is the inner cylinder And an annular connecting plate 45 connected to 43.

  The inner cylinder 43 is formed so as to protrude above the protruding cylinder portion 33, and the lower end portion thereof is fitted inside the upper end portion of the cylinder 30. The outer circumferential surface of the portion of the outer circumferential surface of the inner cylinder 43 located below the connecting plate 45 and the inner circumferential surface of the protruding cylindrical portion 33 are each provided with a longitudinal detent rib that engages with each other in the circumferential direction. Is formed.

  A third screw portion 46 to which the pressing head 7 positioned at the descending end position P <b> 1 is screwed is formed in a portion of the outer peripheral surface of the inner cylinder 43 positioned above the connecting plate 45. The third screw portion 46 is formed in a spiral shape so that the pressing head 7 is tightened when the pressing head 7 is rotated relative to the restriction cylinder 40 in the first rotation direction M1.

  The outer cylinder 44 is formed in a cylindrical shape having a smaller diameter than the upper cylinder portion 50 of the mounting cap 3 and has a length that does not reach the top wall portion 52 of the mounting cap 3 from the outer peripheral edge of the connecting plate 45. It extends downward. Thereby, a gap is secured in the container axis O direction between the lower end opening edge of the outer cylinder 44 and the top wall portion 52.

As shown in FIGS. 1 to 3, an engagement groove (engaged portion) 47 extending in the container axis O direction is formed on the outer peripheral surface of the outer tube 44.
In the illustrated example, the engagement groove 47 is formed so that the circumferential position is the same as the window portion 54. However, it is not limited to this case, and the position of the engagement groove 47 and the position of the window portion 54 may be shifted in the circumferential direction. The engagement groove 47 extends in the container axis O direction with a constant circumferential width and opens upward and downward.

As shown in FIG. 1, the seal cylinder 41 is disposed inside the inner cylinder 43 of the regulation cylinder 40. At the lower end portion of the seal cylinder 41, a closed cylinder portion (not shown) that is slidably fitted into the cylinder 30 is formed.
The closing cylinder portion closes the air hole 34 when the pressing head 7 and the stem 4 are positioned at the descending end position P1 and the pressing head 7 is screwed to the regulation cylinder 40. When the pressing head 7 and the stem 4 are positioned at the rising end position P2, for example, the closed cylinder portion is pushed up from below by the piston to open the air hole 34.

  The stem 4 is disposed inside the seal cylinder 41 so as to be movable up and down. An annular communication path that communicates the outside and the annular space described above is defined between the outer peripheral surface of the stem 4 and the inner peripheral surface of the seal cylinder 41. The seal cylinder 41 is not essential and may not be provided.

  As shown in FIGS. 1 to 3, the pressing head (second screw member) 7 includes a top wall 60 having a circular shape in plan view, and a head cylinder 61 extending downward from the outer peripheral edge of the top wall 60. A screwed tube 62 extending downward from the top wall 60 and screwed to the inner tube 43 of the restriction tube 40, and extending downward from the central portion of the top wall 60 and inside the stem 4. It is formed in the top cylinder shape provided with the fitting cylinder 63 fitted.

The head cylinder 61 is formed with a discharge nozzle 64 that protrudes radially outward and has a discharge hole 6 formed at the tip thereof.
In the illustrated example, the discharge nozzle 64 is formed such that the circumferential width along the circumferential direction gradually decreases as it goes radially outward. The discharge nozzle 64 is formed so as to be integrated with the top wall portion 60, extends to the inside of the head cylinder 61, and is integrally connected to the fitting cylinder 63. Thus, the inside of the discharge nozzle 64 communicates with the inside of the stem 4 through the inside of the fitting cylinder 63.
However, the shape of the discharge nozzle 64 is not limited to the case described above.

A fourth screw portion 65 that is screwed to the third screw portion 46 formed in the inner tube 43 of the restriction tube 40 is formed on the inner peripheral surface of the screw tube 62. The pressing head 7 and the stem 4 are held at the lowered end position P <b> 1 and are restricted from moving upward by the screwing of the fourth screw portion 65 to the third screw portion 46.
In addition, when the lower end portion of the screwing cylinder 62 comes into contact with the connecting plate 45 of the regulation cylinder 40 from above, the tightening of the pressing head 7 with respect to the regulation cylinder 40 is completed.

  A plurality of vertical ribs 66 extending along the container axis O direction are formed at intervals in the circumferential direction on a portion of the outer peripheral surface of the fitting cylinder 63 positioned above the stem 4. The lower end edge of the vertical rib 66 is in contact with the upper end opening edge of the stem 4 from above. Further, the seal cylinder 41 is pushed down from above by the vertical rib 66 when the pressing head 7 is located at the lowered end position P1.

  The head cylinder 61 is formed with a diameter larger than that of the outer cylinder 44 of the restriction cylinder 40, and is disposed above the outer cylinder 44. The head cylinder 61 is formed with a vertically long slide hole 70 extending in the container axis O direction, similarly to the engagement groove 47 described above. Accordingly, the engaging groove 47 and the slide hole 70 extend along the intersecting direction intersecting the circumferential direction.

  The slide hole 70 is formed so that its circumferential position is the same as that of the engagement groove 47. Therefore, the slide hole 70 and the engagement groove 47 are arranged so as to be aligned along the container axis O direction in a side view of the pressing head 7 and the mounting cap 3.

  As shown in FIGS. 1 and 7, the slide hole 70 is formed so as to penetrate the head cylinder 61 in the radial direction and open downward. Note that the circumferential width of the slide hole 70 is shorter than the circumferential width of the engagement groove 47. In the illustrated example, the circumferential width of the slide hole 70 is about ½ of the circumferential width of the engaging groove 47.

As shown in FIG. 7, a slide restricting protrusion 71 is formed in the slide hole 70.
The slide restricting protrusion 71 includes a pair of claw portions 72 formed on the side wall surfaces facing the circumferential direction among the wall surfaces defining the slide hole 70.
The pair of claw portions 72 are formed so as to protrude in the circumferential direction from the same height of the side wall surface of the slide hole 70, and are formed so that the distance between the pair of claw portions 72 gradually decreases toward the top. An upper end edge of the pair of claw portions 72 is a flat locking surface 72 a orthogonal to the container axis O.

  In the present embodiment, the slide restricting projection 71 composed of a pair of claw portions 72 is formed in three steps (three) at intervals in the container axis O direction. However, the number of slide restricting protrusions 71 is not limited to this case, and may be, for example, two or four or more.

  As shown in FIG. 1 to FIG. 3, FIG. 7 and FIG. 8, between the regulating cylinder 40 configured as described above and the pressing head 7, the regulating cylinder 40 and the pressing head 7 in the circumferential direction are connected. A regulating member 80 that regulates relative movement (that is, regulates both rotations) is attached. The restriction cylinder 40, the pressing head 7 and the restriction member 80 constitute a screw unit 8.

  The restricting member 80 includes an engaging portion 81 that engages with the engaging groove 47 and the slide hole 70, and an operation piece 82 that is disposed on the radially outer side of the head cylinder 61, and restricts movement in the circumferential direction. In this state, it is arranged so as to be movable upward along the slide hole 70.

  The engaging portion 81 includes a first engaging portion 83 that engages in the engaging groove 47, and a second engaging portion 84 that is formed integrally with the first engaging portion 83 and engages in the slide hole 70. And.

The first engaging portion 83 is formed in a flat plate shape having a circumferential width equivalent to the engaging groove 47. In the illustrated example, the first engaging portion 83 is formed so as to protrude above the engaging groove 47.
Specifically, the first engaging portion 83 is engaged so that the upper end portion is located between the second (middle) slide restricting protrusion 71 and the third (upper) slide restricting protrusion 71. Projecting upward from the groove 47. Therefore, the first engagement portion 83 is not engaged in the engagement groove 47 over the entire length, but mainly the lower half is engaged in the engagement groove 47.
However, the first engagement portion 83 may be formed so that the first engagement portion 83 is engaged in the engagement groove 47 over the entire length.

The second engagement portion 84 has a length in the container axis O direction equal to that of the first engagement portion 83, and a circumferential width that can be accommodated between the pair of claw portions 72 in the slide restriction projection 71. Yes. The slide hole 70 is formed such that the length along the container axis O direction is longer than the length of the second engagement portion 84 along the container axis O direction.
Accordingly, the restricting member 80 is moved from the restricting position P3 (state shown in FIG. 3) where the first engaging portion 83 and the second engaging portion 84 are engaged with the engaging groove 47 and the slide hole 70, respectively, to the second position. The engagement portion 84 engages with the slide hole 70, and the first engagement portion 83 disengages from the engagement groove 47, toward the release position P4 (state shown in FIG. 9) where the engagement is released. An upward movement is possible along the slide hole 70.

  Since the first engaging portion 83 is disengaged from the engaging groove 47 when the restricting member 80 is located at the release position P4, the connection between the restricting cylinder 40 and the pressing head 7 via the restricting member 80 is released. The As a result, the rotation restriction between the restriction cylinder 40 and the pressing head 7 can be released.

As shown in FIGS. 7 and 8, a pair of restricting pieces 85 are formed on the side wall surfaces of the second engaging portion 84 that face the pair of claw portions 72.
The restricting piece 85 is formed so as to be separated from the second engaging portion 84 in the circumferential direction as it goes downward. Therefore, the pair of restricting pieces 85 can get over the pair of claw portions 72 from below as the restricting member 80 moves upward.
As shown in FIGS. 3 and 9, after the pair of restricting pieces 85 get over the pair of claw portions 72, the lower edge thereof is locked on the locking surface 72 a of the claw portion 72. Accordingly, the restricting member 80 is allowed to move upward along the slide hole 70, while being restricted from moving downward.

  Therefore, the slide restricting projection 71 and the pair of restricting pieces 85 constituted by the pair of claw portions 72 described above are disposed between the engaging portion 81 and the slide hole 70, and from the restricting position P3 to the release position P4. The slide restricting portion 86 is configured to permit the movement of the restricting member 80 and restrict the movement in the opposite direction.

  As shown in FIGS. 1 to 3, the operation piece 82 has a circumferential width equivalent to that of the first engagement portion 83 and is formed in a flat plate shape protruding upward from the first engagement portion 83. A flange piece 87 projects from the upper end of the operation piece 82 toward the radially outer side. Thereby, for example, the operation piece 82 can be pushed up while being hooked on the flange piece 87.

(Action of discharge container)
Next, the operation of the discharge container 1 configured as described above will be described. First, the case where the discharge container 1 is assembled will be briefly described.

In this case, first, the regulation cylinder 40, the pressing head 7 and the regulation member 80 are combined together. At this time, as shown in FIG. 7, after the pressing head 7 is screwed to the restriction cylinder 40, the first engagement portion 83 and the second engagement portion are inserted into the engagement groove 47 and the slide hole 70. The restricting member 80 is combined so that 84 is inserted from below. Thereby, the restricting member 80 can be set at the restricting position P3, and the screw unit 8 can be combined in a state in which the restricting cylinder 40 and the pressing head 7 are restricted in rotation.
When the restricting member 80 is positioned at the restricting position P3, as shown in FIG. 3, the pair of restricting pieces 85 are engaged with the pair of claw portions 72 in the first (lower) slide restricting projection 71. Locked to the surface 72a.

Next, the screw unit 8, the cylinder 30, the stem 4 and the mounting cap 3 are combined together. As a result, the pressing head 7 is held at the lowered end position P1, and the regulating cap 80 is prevented from coming down downward by the mounting cap 3.
As described above, a unit in which the mounting cap 3, the pump 5, the pressing head 7, and the regulating member 80 are combined together can be obtained.
At the same time or before and after this, the ring body 20 is extrapolated to the first mouth portion 12 a of the container body 2. At this time, as shown in FIG. 4, the ring body 20 is extrapolated so that the stopper pin 23 of the ring body 20 is locked from the circumferential direction with respect to the stopper surface 14 a of the one stopper protrusion 14. .

  Thereafter, after the container body 2 is filled with the contents, the mounting cap 3 is attached to the mouth portion 12 of the container body 2 so that the unit is integrally combined with the container body 2. Specifically, the mounting cap 3 is rotated in the first rotation direction M <b> 1 with respect to the mouth portion 12 of the container body 2, so that the mounting cap 3 is screwed to the mouth portion 12 of the container body 2.

As a result, the discharge container 1 can be assembled.
In particular, since the stopper pin 23 of the ring body 20 is in a state of being locked from the circumferential direction with respect to the stopper surface 14a of the one stopper projection 14, as shown in FIGS. The outer peripheral surface of the ring main body 21 (the part where the mark part 25 is not formed) can be visually recognized.

Next, the case where the discharge container 1 is used will be described.
As shown in FIG. 1, in the discharge container 1 of the present embodiment, when the restricting member 80 is located at the restricting position P <b> 3, the engaging portion 81 including the first engaging portion 83 and the second engaging portion 84 is provided. Since the engaging groove 47 and the slide hole 70 are engaged, the restricting cylinder 40 and the pressing head 7 are integrally connected via the restricting member 80. Therefore, it is possible to restrict the rotation of the pressing head 7 with respect to the restriction cylinder 40.

  Accordingly, it is possible to prevent the pressing head 7 positioned at the descending end position P1 from being intentionally or unexpectedly rotated. Therefore, for example, when the product is distributed or not used, the pressing head 7 rotates in the second rotation direction M2 (relaxation direction) with respect to the regulation cylinder 40, and the pressing head 7 is intentionally screwed to the regulation cylinder 40. Or it can prevent that it cancels | releases unexpectedly.

  Next, when discharging the contents, as shown in FIG. 9, the regulating member 80 is moved upward (sliding) along the slide hole 70 from the regulation position P3 toward the release position P4. At this time, for example, since the regulating member 80 can be moved upward while hooking the fingertip on the flange piece 87, the regulating member 80 can be operated smoothly and the operability can be improved.

  When the pair of restricting pieces 85 are engaged with the engaging surfaces 72a of the pair of claw portions 72 in the third-stage slide restricting protrusion 71, the restricting member 80 is positioned at the release position P4. In particular, each time the pair of restricting pieces 85 pass through the second-stage slide restricting protrusion 71 and the third-stage slide restricting protrusion 71, it is possible to feel a click feeling, so that the restricting member 80 is easily operated.

Then, by positioning the regulating member 80 at the release position P4, the first engagement portion 83 is disengaged from the engagement groove 47 while the second engagement portion 84 is engaged in the slide hole 70, and the engagement is engaged. The engagement with the joint groove 47 can be released.
As a result, the rotation restriction between the restriction cylinder 40 and the pressing head 7 can be released. Therefore, the pressing head 7 can be rotated in the second rotation direction M2 with respect to the restriction cylinder 40, and the screwing of the pressing head 7 with respect to the restriction cylinder 40 can be released.

When the screwing of the pressing head 7 is released, the stem 4 and the pressing head 7 are integrally moved upward by the biasing force of the coil spring and moved to the rising end position P2. Thereby, the pressing head 7 can be shifted to a state where it can be pressed down, and the contents can be discharged.
Specifically, when the pressing head 7 is pressed and moved downward together with the stem 4, the piston moves downward in the cylinder 30, so that the pressure in the cylinder 30 can be increased. Thereby, the contents in the cylinder 30 can be supplied into the discharge nozzle 64 and can be discharged to the outside through the discharge hole 6.

  When the pressing of the pressing head 7 is released, the stem 4 and the pressing head 7 are restored and moved to the rising end position P2 by the biasing force of the coil spring, and the inside of the cylinder 30 becomes negative pressure. Can be sucked into the cylinder 30. Thus, it is possible to prepare for the next ejection operation by the pressing head 7.

In particular, since the slide restricting portion 86 is disposed between the engaging portion 81 and the slide hole 70, once the restricting member 80 is positioned at the release position P4, the restricting position P3 is moved downward from the release position P4. I can't go back to it.
Accordingly, after the pressing operation of the pressing head 7 is performed, even if the pressing head 7 is screwed to the regulating cylinder 40 at the lowered end position P1, it can be visually recognized that the position of the regulating member 80 has changed. Therefore, based on the change in position of the regulating member 80, it can be easily and reliably determined whether or not the screwing of the pressing head 7 to the regulating cylinder 40 has been released, that is, whether or not the opening operation has been performed.

  As described above, according to the discharge container 1 of the present embodiment, since the screw unit 8 is provided, the position change of the restricting member 80 (located at the restricting position P3 or located at the release position P4). It is possible to easily and reliably determine whether or not the press-down head 7 is screwed to the restriction cylinder 40.

  Further, when the pressing head 7 and the stem 4 are positioned at the descending end position P1 and the restricting member 80 is located at the restricting position P3, the mounting cap 3 is secondly attached to the mouth portion 12 of the container body 2, for example. Even when a rotational force that rotates in the rotation direction M2 acts on the mounting cap 3 intentionally or unexpectedly, it is possible to prevent the mounting cap 3 from continuing to rotate in the second rotation direction M2.

Specifically, when the mounting cap 3 rotates in the second rotation direction M2 with respect to the mouth portion 12 of the container body 2, the second locking protrusion 55 of the mounting cap 3 causes the first locking of the ring body 20. Since the ring 24 is locked to the locking surface 24a of the protrusion 24 from the circumferential direction, the mounting cap 3 rotates while the ring body 20 is rotated together. Then, as shown in FIG. 6, when the ring body 20 makes a half rotation of the first opening 12a, the stopper pin 23 is locked to the stopper surface 15a of the other stopper projection 15 from the circumferential direction. Further rotation in the two rotation directions M2 is restricted.
Thereby, it can prevent that the mounting | wearing cap 3 rotates further in the 2nd rotation direction M2.

Further, in this case, even if the mounting cap 3 is rotated in the first rotation direction M1 and tightened again, the second locking projection 55 of the mounting cap 3 surrounds the first locking projection 24 of the ring body 20. Since it gets over the direction, the ring body 20 does not rotate. Therefore, as shown in FIGS. 6 and 9, the mark portion 25 formed on the ring body 20 can be visually recognized from the outside through the window portion 54.
Therefore, based on the mark portion 25, it can be easily and reliably determined whether or not the mounting cap 3 has been intentionally or unexpectedly rotated in the loosening direction, that is, whether or not the opening operation has been performed.

(Second Embodiment)
Next, a second embodiment of the present invention will be described. In the second embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

As shown in FIGS. 10 to 12, the discharge container (screw container) 90 of the present embodiment includes a regulating member 92 having an operation cylinder 91 formed in a cylindrical shape.
The operation cylinder 91 is formed so as to surround the head cylinder 61 of the pressing head 7 from the outside in the radial direction. Further, an arcuate flange piece 93 is formed at the upper end portion of the operation cylinder 91 so as to protrude outward in the radial direction and to extend in the circumferential direction so as to avoid interference with the discharge nozzle 64.

Even in the case of the discharge container 90 configured as described above, the same effects as those of the first embodiment can be achieved.
In addition, since the operation tube 91 is formed in a cylindrical shape and the flange piece 87 is formed in an arc shape, for example, the entire operation tube 91 can be gripped so as to be wrapped with a palm, It is easy to hook the entire belly of the finger. Therefore, the restricting member 92 can be moved more smoothly from the restricting position P3 shown in FIGS. 10 to 12 to the release position P4 shown in FIG. Furthermore, since the operation cylinder 91 is easily visible, it is easy to grasp the change in the position of the regulating member 92 at a glance.

  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.

For example, in the above-described embodiment, the restriction member 80 is provided between the restriction cylinder 40 and the pressing head 7, and whether or not the screwing of the pressing head 7 to the restriction cylinder 40 is released based on the change in the position of the restriction member 80. However, a regulating member 80 may be further provided between the mounting cap 3 and the mouth portion 12 of the container body 2.
In this case, it is possible to determine whether or not the screwing of the mounting cap 3 to the mouth portion 12 of the container body 2 is released based on the change in the position of the regulating member 80, which is preferable.

  Moreover, in the said embodiment, although the case where the screw unit was applied to the pump-type discharge container was mentioned as an example and demonstrated, it is not limited to this case.

  For example, as shown in FIGS. 14 to 16, a container body (first screw member) 110 in which contents are accommodated and a lid body (second screw member) 120 attached to the container body 110 are provided. The screw container 100 including the screw unit 130 may be used. In FIGS. 14 to 16, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

A container body 110 in the illustrated example includes a bottomed cylindrical container main body 101 and a cylindrical pouring member 105 attached to the mouth portion 102 of the container main body 101.
The dispensing member 105 includes a seal tube 113 fitted inside the mouth portion 102 of the container body 101, a fitting tube 114 fitted outside the mouth portion 102 of the container body 101, and the fitting tube 114 in the radial direction. An outer cylinder 115 that surrounds from the outside, an upper end portion of these seal cylinders 113, an upper end portion of the fitting cylinder 114, an annular flange portion 116 that radially connects the upper end portions of the outer cylinder 115, and an inner edge of the flange portion 116 And a pouring tube 112 formed with a spout 111 that pours out the contents at the upper end thereof. An engagement groove 47 is formed in the outer cylinder 115 along the container axis O direction.

The lid body 120 is formed in a top tube shape that opens and closes the spout 111, and has a circular top wall portion 121 that covers the pouring tube 112 from above, and downward from the outer peripheral edge of the top wall portion 121. A peripheral wall cylinder 122 that extends and a screwed cylinder 123 that extends downward from the top wall 121 and is screwed to the extraction cylinder 112. A slide hole 70 is formed in the peripheral wall cylinder 122 along the container axis O direction.
The peripheral wall cylinder 122 and the outer cylinder 115 have the same diameter.

  The restriction member 80 is attached using the engagement groove 47 and the slide hole 70 configured as described above, and restricts the rotation of the lid 120 relative to the container body 110 when the restriction member 80 is positioned at the restriction position P3. .

  Therefore, according to the screw container 100 of the present embodiment, the lid 120 can be removed unless the restricting member 80 is moved upward along the slide hole 70 and positioned at the release position P4, as in the first embodiment. Can not. Further, once the restricting member 80 is positioned at the release position P4, it cannot be returned to the original restricting position P3, so that the lid 120 is screwed to the container body 110 based on a change in the position of the restricting member 80. It is possible to easily and reliably determine whether or not has been released.

  In the example shown in FIGS. 14 to 16, the container body 110 is constituted by the container main body 101 and the pouring member 105, and the lid body 120 is screwed to the container body 110 via the pouring cylinder 112 of the pouring member 105. However, the present invention is not limited to this case.

For example, as a screw container, a bottomed cylindrical container body is a first screw member, a top cylindrical cover body screwed to the container body is a second screw member, and the peripheral wall portion of the container body and the lid body A configuration may be adopted in which a regulating member is disposed between the peripheral wall portion.
In this case, for example, the present invention can be applied to a jar container that contains contents such as a cosmetic cream. Therefore, it can be easily and reliably determined whether or not the lid of the jar container has been opened. For example, product reliability can be improved.

  In addition, the constituent elements in the above-described embodiment can be appropriately replaced with surrounding constituent elements without departing from the spirit of the present invention, and the above-described modified examples may be appropriately combined.

O ... Container shaft (screw shaft)
P1 ... Lower end position P2 ... Upper end position P3 ... Restriction position P4 ... Release position 1, 90 ... Discharge container (screw container)
2 ... Container body 3 ... Mounting cap 4 ... Stem 6 ... Discharge hole 7 ... Pressing head (second screw member)
8, 130 ... Screw unit 40 ... Restriction cylinder (first screw member)
47 ... engaging groove (engaged part)
DESCRIPTION OF SYMBOLS 70 ... Slide hole 80, 92 ... Restriction member 81 ... Engagement part 86 ... Slide restriction part 100 ... Screw container 110 ... Container body (1st screw member)
120 ... Lid (second screw member)

Claims (3)

A first screw member;
A second screw member screwed to the first screw member;
A regulating member that regulates relative movement between the first screw member and the second screw member in the circumferential direction around the screw axis;
The restriction member engages with a slide hole formed in one of the first screw member and the second screw member, and an engaged portion formed in the other screw member. Have joints,
The slide hole extends in an intersecting direction intersecting the circumferential direction,
The restricting member is configured such that the engaging portion engages with the slide hole and the engaged portion from a restricting position where the engaging portion engages with both the slide hole and the engaged portion. It is arranged to be movable along the slide hole in a state in which movement in the circumferential direction is restricted toward a release position where the engagement with is released.
Between the engaging portion and the slide hole, there is disposed a slide restricting portion that allows the restricting member to move from the restricting position to the release position and restricts movement in the opposite direction. The screw unit. A screw unit according to claim 1;
A container body for storing contents;
A mounting cap mounted on the mouth of the container body;
A pump having a stem inserted inside the mounting cap so as to be movable downward in an upwardly biased state;
A pressing head attached to the upper end of the stem and formed with a discharge hole for discharging the contents;
The pressing head positioned at the descending end position is screwed, and includes a regulating cylinder that regulates upward movement of the pressing head and the stem,
A screw container in which the first screw member is the restriction cylinder and the second screw member is the pressing head. The screw unit according to claim 1,
The first screw member is a container body that contains contents,
The screw container, wherein the second screw member is a lid attached to the container body.

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