JP6989331B2 - Cut-off spout - Google Patents

Description

The present invention relates to a folding spout closed by a folding portion in which the tip of a flow path is integrally formed, and more particularly to a folding spout in which the spout body and the folding portion are protected by a cover covering the outer periphery of the spout body.

Conventionally, a folding spout having a tubular portion having a flow path penetrating the center and having a spout main body in which the tip of the flow path is closed by a folding portion integrally formed at the tip of the tubular portion is well known.
In addition, in order to avoid touching the spout body directly from the viewpoint of hygiene, a cover is provided to cover the outer periphery of the tip side of the cylinder part of the spout body, and the cover removal operation and the folding part disconnection operation are performed at the same time. Also known are cut-off spouts that improve user convenience (see, for example, Patent Documents 1, 2, etc.).

Japanese Unexamined Patent Publication No. 2006-62752 Japanese Unexamined Patent Publication No. 2009-46184

However, there is still room for improvement in the cut-off spout known in the above patent documents and the like. That is, since the cover is fitted into the folded portion and fixed, a force is applied to the folded portion when the cover is fitted, which may damage the weakened portion and impair the sealing performance. ..
In addition, when an unintended external force is applied to the cover during transportation or storage, the cover may malfunction, and as a result, the cover may come off from the spout before use.

The present invention solves these problems, and has a simple configuration, does not suddenly apply force to the folded portion except during use, and does not deteriorate the sealing property due to damage to the weakened portion. To provide a folding spout that allows the cover to be easily engaged with the spout body to prevent the cover from detaching from the spout body when not in use, while the cover can be easily detached from the spout body during use. Is the purpose.

The folding spout of the present invention includes a tubular portion having a flow path penetrating the center and a folding portion integrally formed from the tip of the tubular portion via a weakened portion. A folding spout including a spout body capable of closing the tip and a cover covering the outer periphery of the tubular portion of the spout body on the tip end side, wherein the cover is covered from the tip end side of the spout body and the folding is performed. A cover top surface that is formed as a separate body so as to cover including the taking portion and has a peripheral edge formed by a pair of long side portions facing each other and a pair of short side portions facing each other, and a skirt wall hanging from the peripheral edge portion of the cover top surface. The cover is formed in a shape that does not come into contact with the folded portion in a state where the cover covers and is fixed to cover the tip end side of the spout body, and the skirt wall and the cylinder portion on the long side portion have A retaining portion configured to be able to release the engagement between the cover and the spout body when the cover and the spout body are engaged with each other and the cover is rotated about the flow path. The retaining portion is composed of an engaging window provided on the skirt wall on the long side side and an engaging protrusion provided on the tubular portion, and the engaging window is the engaging window. It is provided longer in the circumferential direction than the protrusion, and at least one end in the circumferential direction of the engagement window is outward from the circle drawn by the engagement protrusion when the cover is rotated about the flow path. By reaching it, the above-mentioned problem is solved.

According to the folding spout of the invention according to claim 1, since the cover is formed so as to be covered from the tip end side of the spout body and cover the folding portion including the folding portion, the folding portion is also formed during transportation and storage. No external force is directly applied to the weakened part, and it is possible to prevent the weakened part from being damaged by an unintended external force.
In addition, the cover and the cylinder are engaged with the skirt wall and the cylinder on the long side to prevent the cover from coming off, and when the cover is rotated around the flow path, the cover and the spout body are engaged with each other. Since it has a removable retaining part, it can prevent the cover from coming off the spout body before use (before rotation), while the cover is relatively relative to the spout body during use. The cover and spout body can be easily released by simply rotating.
Further, the retaining portion is composed of an engaging window provided on the skirt wall on the long side and an engaging protrusion provided on the cylinder portion, and the engaging window is in the circumferential direction with respect to the engaging protrusion. In addition to being provided long, at least one end in the circumferential direction of the engagement window reaches the outside of the circle drawn by the engagement protrusion when the cover is rotated around the flow path, so it has an extremely simple structure. When the cylinder portion and the cover are relatively rotated, the engaging protrusion can be disengaged from the engaging window without being caught by the edge of the engaging window, and the retaining can be released.

According to the configuration according to claim 2 , the folded portion of the spout body has a pair of operating arms extending in a direction orthogonal to the flow path, and the engaging protrusion passes through the center line of the tubular portion and the operating arm. Since the bulge is formed in the direction orthogonal to the above, the engaging protrusion can be securely engaged with the engaging window at a position where the folded part and the cover do not contact, and the cover and the spout body are relatively rotated for operation. One of the twists on the cover is to bring the arm into contact with the cover, open the folding part, disengage the engaging protrusion from the engaging window, and quickly disengage the cover from the spout body. It can be done only by operation.

According to the configuration according to claim 3 , on the outer peripheral surface of the tubular portion, a convex portion formed to bulge outward in the radial direction is provided at a position different from the retaining portion in the circumferential direction, and the upper surface of the convex portion is provided. Has an inclined surface inclined in the circumferential direction, so that the lower part of the skirt wall on the long side comes into contact with the convex portion by twisting and removing the cover during use, and along the inclined surface of the convex portion. By receiving a force in the direction in which the cover rises, the cover can be easily detached from the spout body.
According to the fourth aspect, a notch portion configured to be in contact with the inclined surface of the convex portion is provided at the lower portion of the skirt wall on the long side portion side, and the notch portion is downward. It is open, and when the cover is twisted and removed during use, the convex part comes into contact with the notch, so adjust the shape of the notch and adjust the contact angle between the notch and the inclined surface of the convex part. By doing so, it is possible to adjust the amount of rise of the cover and the timing of detaching from the spout body.

According to the configuration of claim 5 , the folded portion of the spout body has a pair of operating arms extending in a direction orthogonal to the flow path, and the operating arms extend in the circumferential direction around the flow path. It has an engaging hole, and the inner peripheral part of the cover is provided with an insertion arm that is inserted into the engaging hole when the cover is rotated around the flow path, so the cover is twisted during use. By the removing operation, the folded portion is broken at the weakened portion and separated, and can be removed from the spout body together with the cover, improving convenience.

The perspective view of the folding spout 100 which concerns on one Embodiment of this invention. The perspective view of the spout main body 110 which concerns on one Embodiment of this invention. Top view and front view of the spout main body 110 according to the embodiment of the present invention. The perspective view of the cover 130 which concerns on one Embodiment of this invention. The front view and the bottom view of the cover 130 which concerns on one Embodiment of this invention. The front half sectional view and the side sectional view of the folding spout 100 which concerns on one Embodiment of this invention. A semi-cross-sectional view, an AA'cross-sectional view and a BB'cross-sectional view showing the detachment procedure 1 of the folding portion 117 of the folding spout 100 according to the embodiment of the present invention. AA'cross-sectional view and BB'cross-sectional view showing the detachment procedure 2 of the folding portion 117 of the folding spout 100 according to the embodiment of the present invention. A half cross-sectional view, a cross-sectional view taken along the line A-A'and a cross-sectional view taken along the line B-B'of the folding spout 100 according to the embodiment of the present invention, when the cover 130 is rotated by 90 °. AA'cross-sectional view and BB'cross-sectional view showing the detachment procedure 3 of the folding portion 117 of the folding spout 100 according to the embodiment of the present invention. A half cross-sectional view, a cross-sectional view taken along the line A-A'and a cross-sectional view taken along the line B-B'of the folding spout 100 according to the embodiment of the present invention, when the cover 130 is rotated by 270 °.

Hereinafter, the cut-off spout 100 according to the embodiment of the present invention will be described with reference to the drawings.
The break spout 100 is closed by a break portion 117 in which the tip of the flow path 116 is integrally formed, and as shown in FIGS. 1 and 7, a tubular portion 111 having a flow path 116 penetrating the center is provided. A spout main body 110 having a folding portion 117 integrally formed from the tip of the tubular portion 111 via a weakening portion 122, and the tip of the flow path 116 being closed by the folding portion 117, and a tubular portion of the spout main body 110. It is provided with a cover 130 that covers the outer periphery of the distal end side of the 111.

As shown in FIGS. 2 and 3, a flange portion 114 is provided at the lower portion of the tubular portion 111, and the upper surface of the flange portion 114 and the outer peripheral surface of the tubular portion 111 have an upwardly convex mountain-shaped slope. Two convex portions 115 are arranged to face each other so as to sandwich the tubular portion 111.
Further, on the lower outer peripheral surface of the tubular portion 111 above the convex portion 115, two engaging protrusions 125 formed so as to protrude outward in the radial direction of the tubular portion 111 are orthogonal to the line connecting the two convex portions 115. The cylinder portions 111 are arranged to face each other so as to sandwich the cylinder portion 111 from the direction in which the cylinder portion 111 is formed.
The upper surface of the engaging projection 125 is inclined downward toward the outer side in the radial direction.

Further, on the outer peripheral surface of the tubular portion 111 below the weakened portion 122 of the spout main body 110, a diameter-expanded portion 112 and a screw portion 123 for connecting to a mounting member such as a tube during use are provided, and a screw is provided. The portion of the portion 123 located above the convex portion 115 is chamfered in the vertical direction by the chamfered portions 124 arranged so as to sandwich the tubular portion 111.
Below the flange portion 114, a mounting portion 113 that can be attached to and welded to a container such as a pouch is connected.

The snapping part 117, operating arm 118 of a pair extending in a direction perpendicular to the flow path 116 is provided, operating arm 118 has engaging holes 119 extending circumferentially around the flow path 116 ing.
Further, on the inner surface of the engaging hole 119, a locking projection 120 formed so as to protrude inward in the radial direction from the inner surface on the outer side in the radial direction of the engaging hole 119 is provided in the vertical direction in the axial direction.
Further, the snapping part 117, the upper outer peripheral surface than the engaging hole 119, in the direction perpendicular to the line connecting the operating arm 118 of a pair, two bulging formed to project radially outwardly The portions 121 are arranged so as to face each other.

The cover 130, as shown in FIGS. 4 and 5, a cover top surface 131 to form a peripheral edge at the short sides facing the long sides and a pair of opposing a pair, depending from the periphery of the cover top surface 131 The cover 130 is further provided with a cover engaging portion 133, an insertion arm 134, an engaging window 136, and a notch portion 137.
The cover engaging portion 133 is provided on the inner peripheral surface of the skirt wall 132 on the long side portion side, and is configured to be engageable with the outer peripheral surface of the enlarged diameter portion 112 of the spout main body 110.

The insertion arms 134 are evenly arranged in four circumferential shapes on the upper part of the inner peripheral surface of the skirt wall 132 on the long side, and each insertion arm 134 extends in the circumferential direction facing the adjacent insertion arms 134. The cover 130, which will be described later, is arranged so as to face both sides of the engagement hole 119 of the operating arm 118 in a state where the cover 130 is fixed so as to cover the tip end side of the spout body 110. ..
Therefore, the insertion arm 134 is configured to be insertable into the engagement hole 119 of the operation arm 118 when the cover 130 is turned to one side, and the insertion arm 134 is inserted into the engagement hole 119 on the tip end side of the insertion arm 134. At the time of this, a riding over portion 135 is provided which is formed to protrude outward in the radial direction so as to be able to get over the locking protrusion 120 and engage with the locking protrusion 120.

The engagement window 136 is formed in a horizontally long hole shape penetrating the side surface of the skirt wall 132 on the long side side, and is provided longer in the circumferential direction than the engagement projection 125.
The notch 137 is provided in the lower part of the skirt wall 132 on the long side side, and the lower part is open.
Further, the notch portion 137 forms a slope that gradually rises from the center side of the skirt wall 132 on the long side to the skirt wall 132 on the short side.

Next, the assembly of the cut-off spout 100 will be described with reference to FIG.
In the cut-off spout 100, the spout body 110 and the cover 130 are separately manufactured by injection molding or the like, and the cover 130 is covered from the tip side of the spout body 110, and the cover engaging portion 133 formed on the inner peripheral surface of the cover 130. Engages with the enlarged diameter portion 112 of the tubular portion 111, so that the cover 130 covers and fixes the tip end side of the spout main body 110, and is assembled as a cut-off spout 100.

The cover 130 is formed so as to cover the tip end side of the spout body 110 and be fixed so as not to come into contact with the folding portion 117. During this assembly operation, the inner peripheral surface of the cover 130 is formed with the folding portion 117. Since there is no contact at all, no force is applied to the folded portion 117 or the weakened portion 122, the weakened portion 122 is prevented from being damaged, and the sealing property is not impaired.
Further, even if an external force is applied to the cover 130, the force is only directly applied to the tubular portion 111 via the cover engaging portion 133, and the force is not transmitted to the folding portion 117 or the weakened portion 122, and the weakened portion is weakened by an unintended external force. It is possible to surely prevent the 122 from being damaged.

Further, since the cover engaging portion 133 is engaged so as to tighten the enlarged diameter portion 112, it is possible to suppress an unexpected movement of the cover 130 in the rotational direction.
At this time, the engaging window 136 and the engaging projection 125 engage with each other to function as a retaining portion S from the spout body 110 of the cover 130.

Next, the procedure for detaching the folding portion 117 of the folding spout 100 will be described with reference to FIGS. 7 to 11.
For the sake of explanation, the BB'cross-sectional view uses the outline of the cover 130 ignoring the engagement window 136 and the notch 137 of the cover 130.

First, as shown in FIG. 7, the cover 130 is put on the spout main body 110 so as not to interfere with the folding portion 117.
From this state, the cover 130 is started to be turned clockwise with respect to the spout body 110.
As shown in FIG. 8, as the cover 130 is gradually turned, one of the insertion arms 134 extending in the clockwise circumferential direction begins to be inserted into the engagement holes 119 of the pair of operating arms 118, respectively, and 30 ° When the insertion arm 134 is inserted into the engaging hole 119 until the passing portion 135 is rotated to get over the locking protrusion 120, the passing portion 135 is engaged with the locking protrusion 120 even if the cover 130 is rotated in the reverse direction. The insertion arm 134 does not come out of the engagement hole 119.

Further, the insertion arm 134 is also arranged with the other insertion arm 134 extending in the counterclockwise circumferential direction, and the other insertion arm 134 moves below the bulging portion 121, so that the folding portion 117 is provided. It will regulate the movement upwards.
As a result, one insertion arm 134 and the other insertion arm 134 extend in the circumferential direction facing the adjacent insertion arm 134 and are arranged with each other, and the locking protrusion 120 and the transit portion 135 are engaged with each other. Due to the configuration that the bulging portion 121 restricts the upward movement, the wobbling in the circumferential direction that occurs when the cover 130 rotates is suppressed, and the engagement between the locking protrusion 120 and the passing portion 135 is released. By sandwiching the insertion arm 134, it is possible to prevent rattling and prevent the folding portion 117 from being unintentionally dropped.

When the cover 130 is further turned after the insertion arm 134 is inserted into the engagement hole 119, the operating arm 118 rotates together with the cover 130, and the weakened portion 122 is gradually twisted.
When the cover 130 is rotated by 35 °, the engagement window 136 is provided in a hole shape that is longer in the circumferential direction than the engagement protrusion 125, and at least one end of the engagement window 136 in the circumferential direction allows the spout body 110 to pass through the flow path 116. Since the engagement protrusion 125 reaches the outside of the circle drawn by the engagement protrusion 125 when rotated as the center, the engagement protrusion 125 comes off from the engagement window 136 as the cover 130 rotates, and the retaining portion S causes the engagement protrusion 125 to come off. The stopper of the cover 130 from the spout body is released.

At this time, the notch portion 137 begins to come into contact with the convex portion 115 as the cover 130 rotates, and receives a force in the direction of detaching the cover 130 from the spout main body 110, but the weakened portion 122 is completely twisted off. However, since the cover 130 engaged with the folding portion 117 cannot be detached from the spout body 110, the lower portion of the skirt wall 132 on the long side located below the engaging window 136 is rotated by 90 ° until the cover 130 rotates. , As shown in FIG. 9, it comes into contact with the convex portion 115 separated from the notch portion 137, and is gradually deformed so as to be expanded in diameter from the inner side surface.
The shape of the cover 130 may be any shape as long as it has a portion that functions as the skirt wall 132 on the long side. For example, the peripheral edge of the cover top surface 131 may be a track shape or a rectangle, and is clear. A perfect elliptical shape may be used so that there is no break between the long side and the short side.

As shown in FIG. 10, when the cover 130 is continuously turned, the weakened portion 122 is further twisted, and eventually, as shown in FIG. 11, the weakened portion 122 is completely twisted and the folded portion is cut off from the tubular portion 111. 117 is detached and the flow path 116 is opened.
At this time, since the weakened portion 122 has already been twisted off, the slope of the notch portion 137 functions as a cam when it comes into contact with the slope of the convex portion 115 again according to the rotation of the cover 130, and the retaining portion S serves as a cam. With the cover 130 released from the spout body 110 again, the cover 130 is raised along the slope of the convex portion 115, and the engagement between the enlarged diameter portion 112 and the cover engaging portion 133 is released. As a result, it acts as an aid for detaching the cover 130 from the spout main body 110.

Further, since the one and the other insertion arm 134 are sandwiched between the operating arm 118 and the bulging portion 121, even after the cover 130 is detached, the folding portion 117 is securely held by the cover 130 without dropping. can do.
Further, the portion of the screw portion 123 located above the convex portion 115 (the portion corresponding to the skirt wall 132 on the short side portion side) is chamfered in the vertical direction by the chamfered portion 124 arranged so as to sandwich the tubular portion 111. When the cover 130 is separated from the spout body 110 at a position rotated by 270 °, the cover 130 interferes with the threaded portion 123 because the closest portion of the cover 130 to the spout body 110 is located on the chamfered portion 124 side. It is possible to separate from the spout body 110 without doing so.

The insertion arms 134 are evenly arranged in four circumferential shapes on the upper part of the inner peripheral surface of the skirt wall 132 on the long side, and each insertion arm 134 is in the circumferential direction facing the adjacent insertion arms 134. Since the cover 130 is arranged so as to extend to the spout body 110, the weakening portion 122 can be twisted off and the cover 130 together with the folding portion 117 can be separated from the spout main body 110 even when the cover 130 is turned counterclockwise.

Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above embodiments, and various design changes can be made without departing from the present invention described in the claims. It is possible.

In the above-described embodiment, four insertion arms are evenly arranged on the upper inner peripheral surface of the skirt wall on the long side, and each insertion arm has a circumference facing the adjacent insertion arm. Although it has been described as being arranged so as to extend in the direction, the number of insertion arms is not limited to this, and for example, only one insertion arm may be provided, and two insertion arms are symmetrically 1 They may be provided one by one.
Further, in the above-described embodiment, on the inner surface of the engaging hole, a locking protrusion formed so as to protrude inward in the radial direction of the tubular portion from the inner surface on the radial outer side of the engaging hole extends vertically in the axial direction. However, the location where the locking protrusion is formed is not limited to this, and for example, the locking protrusion is provided from the inner surface on the inner side in the radial direction of the engagement hole to the outer side in the radial direction of the cylinder portion. May be provided, and there may be no locking protrusion.

Further, in the above-described embodiment, the bulging portion has been described as being formed so as to protrude outward in the radial direction from the outer peripheral surface above the engagement hole of the operating arm. The present invention is not limited, and for example, it may be formed so as to project radially outward from the outer peripheral surface below the engagement hole of the cut-off portion, or may have no bulging portion.
Further, in the above-described embodiment, four insertion arms are evenly arranged on the upper inner peripheral surface of the skirt wall on the long side side in a circumferential direction, and each insertion arm is in the circumferential direction facing the adjacent insertion arm. It is arranged so as to extend, and when the insertion arm is inserted into the engagement hole, the insertion arm that is not inserted into the engagement hole moves below the bulge to regulate the movement of the folding part upward. However, the method of restricting the upward movement of the folded portion is not limited to this, and for example, a protruding portion formed to protrude inward from the inner peripheral surface of the cover is provided separately from the insertion arm, and the protruding portion thereof. May move below the bulge to bring the protrusion into contact with the bulge and restrict the fold up from moving upwards.
Further, in the above-described embodiment, it has been described that a convex portion and a notch portion that function as a cam are provided, but the configuration of the cam is not limited to this, and for example, the convex portion without the notch portion is provided. It may function as a cam by means of the lower end of the skirt wall and the lower end of the skirt wall. It may function, and may not have a protrusion or a notch that functions as a cam.

Further, in the above-described embodiment, the portion located above the convex portion of the screw portion has been described as being chamfered in the vertical direction by the chamfered portions arranged so as to sandwich the tubular portion. Is not limited to this, and for example, there may be no chamfered portion.

Further, in the above-described embodiment, it has been described that the cover is fixed by covering the tip end side of the spout body by engaging the cover engaging portion with the enlarged diameter portion of the cylinder portion. The present invention is not limited to this, and for example, a cover engaging portion that engages with the threaded portion may be provided instead of the enlarged diameter portion, and the cover engaging portion engages with the outer peripheral surface of the tubular portion including the threaded portion and the enlarged diameter portion in the vertical direction. A cover engaging portion formed in a long rib shape may be provided on the surface.

100 ・ ・ ・ Chamfering spout 110 ・ ・ ・ Spout body 111 ・ ・ ・ Cylinder part 112 ・ ・ ・ Diameter expansion part 113 ・ ・ ・ Mounting part 114 ・ ・ ・ Flange part 115 ・ ・ ・ Convex part 116 ・ ・ ・ Flow path 117 ・ ・ ・ Folding part 118 ・ ・ ・ Operating arm 119 ・ ・ ・ Engagement hole 120 ・ ・ ・ Locking protrusion 121 ・ ・ ・ Swelling part 122 ・ ・ ・ Weakened part 123 ・ ・ ・ Screw part 124 ・ ・ ・Chamfering part 125 ・ ・ ・ Engaging protrusion 130 ・ ・ ・ Cover 131 ・ ・ ・ Cover top surface 132 ・ ・ ・ Skirt wall 133 ・ ・ ・ Cover engaging part 134 ・ ・ ・ Inserting arm 135 ・ ・ ・ Passing part 136 ・ ・・ Engagement window 137 ・ ・ ・ Notch part S ・ ・ ・ Retaining part

Claims (5)

A spout body having a tubular portion having a flow path penetrating the center and a folded portion integrally formed from the tip of the tubular portion via a weakened portion, and the tip of the flow path can be closed by the folded portion. , A break-off spout provided with a cover covering the outer periphery of the tip end side of the cylinder portion of the spout body.
The cover is formed as a separate body so as to be covered from the tip end side of the spout body and cover the folded portion, and the peripheral edge is formed by a pair of long side portions facing each other and a pair of short side portions facing each other. It has a surface and a skirt wall that hangs from the peripheral edge of the top surface of the cover.
The cover is formed in a shape that does not come into contact with the folded portion in a state where the cover covers and is fixed to cover the tip end side of the spout body.
The cover and the spout body are engaged with the skirt wall and the cylinder portion on the long side side by preventing the cover from coming off, and when the cover is rotated about the flow path, the cover and the spout body are formed. It has a retaining part that can be disengaged from the engagement with
The retaining portion is composed of an engaging window provided on the skirt wall on the long side portion side and an engaging protrusion provided on the tubular portion.
The engagement window is provided longer in the circumferential direction than the engagement projection, and at least one end of the engagement window in the circumferential direction is engaged when the cover is rotated about the flow path. A folding spout characterized by reaching the outside of the circle drawn by the protrusion. The folded portion of the spout body has a pair of operating arms extending in a direction orthogonal to the flow path.
The folding spout according to claim 1 , wherein the engaging protrusion passes through the center line of the tubular portion and is formed to bulge in a direction orthogonal to the operating arm. On the outer peripheral surface of the tubular portion, a convex portion formed to bulge outward in the radial direction is provided at a position different from the retaining portion in the circumferential direction.
The break-off spout according to claim 1 or 2 , wherein the upper surface of the convex portion has an inclined surface inclined in the circumferential direction. At the lower part of the skirt wall on the long side side, a notch portion configured to be in contact with the inclined surface of the convex portion is provided.
The cut-off spout according to claim 3 , wherein the notch is open downward. The folded portion of the spout body has a pair of operating arms extending in a direction orthogonal to the flow path.
The operating arm has an engaging hole extending in the circumferential direction about the flow path.
Claims 1 to 4 are provided with an insertion arm inserted into the engagement hole when the cover is rotated about the flow path in the inner peripheral portion of the cover. The break-off spout described in any of.

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