JP4749796B2 - Elastic body and spout in which elastic body is enclosed - Google Patents

Description

  The present invention relates to an elastic body enclosed in a spout attached to a container made of synthetic resin, for example, and a spout in which such an elastic body is enclosed.

  2. Description of the Related Art Conventionally, there is known a spout-equipped container in which a spout is attached to a container formed of a relatively flexible material such as a synthetic resin sheet in order to take out the contents contained therein. Usually, the spout is integrally formed of a synthetic resin or the like, and is sandwiched between the above-described synthetic resin sheets and thermally welded. Such a spout-equipped container is used in various fields, and various configurations of spouts have been developed accordingly.

  For example, as a usage mode of a container with a spout, there is one in which a sucking needle (pouring needle) is inserted into a mouth part of a spout to pour out a stored item and supply it to a necessary place. In this case, the spout mouth is sealed with an elastic body such as rubber that pierces the dispensing needle so as to be able to be used multiple times while sealing the contents (hereinafter, in this specification, It is also described as “containment”).

  By the way, in such a configuration, the elastic body must have a considerably strong pressing force toward the central region into which the dispensing needle is inserted. That is, if this pressing force is weak, a gap is formed between the inserted extraction needle and the elastic body, or after the extraction needle is pulled out, the trace of the extraction needle remains as it is and the passage This is because the contents are easily leaked.

  In order to solve such a problem, Patent Document 1 discloses a division in which an accommodation part for accommodating an elastic body is formed in a welding part to which a synthetic resin sheet is welded, and the welding part can be opened and closed via a hinge. The spout which provides a pressing force to an elastic body by providing a part and closing a division | segmentation part in the state which accommodated the elastic body in the said accommodating part is disclosed.

In addition, in the patent application 2 which is the previous application, the present applicant forms an opening in the welding surface of the spout and encloses a spherical elastic body slightly larger (about 0.5 to 1 mm) than the width of the opening. In addition, a spout that applies a pressing force from the inner wall of the spout body has been proposed.
JP 2003-104402 A Japanese Patent Application No. 2004-183596

  However, the spout disclosed in the above-mentioned Patent Document 1 is configured such that its main body is opened and closed by a hinge, so that there is a problem that the structure is complicated and the cost is increased. Further, since the dividing portion can be opened and closed with respect to the main body and the pressing force is applied with the dividing portion closed, the pressing force on the elastic body may not be stable. If the pressing force does not act stably on the elastic body, the elastic body may fluctuate (displace) in the housing portion when the dispensing needle is inserted / removed. When the dispensing needle is inserted, there is a possibility that liquid leakage may occur, for example, the puncture mark gradually spreads.

  Further, for example, in the field of printers, the main body is downsized, and accordingly, a spout-equipped container that contains ink is also downsized. Specifically, the spout proposed in Patent Document 2 is in a state where a main body of the spout is further miniaturized and a spherical elastic body having a diameter of about 4 mm to 5 mm is enclosed. However, since a spout with a diameter of about 1.5 mm is inserted into and extracted from a spout enclosing such an elastic body, the elastic body is likely to be damaged during insertion and removal, resulting in liquid leakage and the like. Become. In this case, if the pressing force is too strong or the contact length with the dispensing needle is too long, the resistance becomes large when the dispensing needle is inserted and removed, and the elastic body is more likely to be damaged. That is, it is preferable that the elastic body is configured so as to obtain an appropriate shape, an appropriate pressing force, and an insertion / extraction resistance of the dispensing needle, depending on the use application of the spout.

  Furthermore, the spout that encloses the elastic body is not limited to a special shape, and even if various changes are made, a stable and constant pressing force is applied during the encapsulation. It is preferable to keep it.

  The present invention has been made based on the above-described problems, and an object thereof is to provide an elastic body on which a stable pressing force acts when sealed in a spout. It is another object of the present invention to provide a spout that has a simple structure and can stably apply a constant pressing force to an enclosed elastic body regardless of the shape of the elastic body.

In order to solve the aforementioned problems, the invention according to claim 1 includes a pair of welding surface of a sheet material Ru welded to the container constituted, is open the weld to at least one of the pair of weld surface The spout having an opening for sealing an elastic body that is closed by a sheet material is sealed through the opening, and the elasticity into which a dispensing needle for pouring out the contents in the container is inserted / extracted in the body, and inserting the body portion of the opening substantially the same shape before Symbol bullet resistant body for enclosure is formed integrally so as to project to the insertion body portion, when the encapsulated working through the opening, said spout And a projecting portion to which a pressing force acts from the inner wall of the housing portion.

  When the insertion body is accommodated in the accommodation portion through the opening for encapsulating the elastic body formed in the spout, the elastic body having such a configuration is a protrusion formed integrally with the insertion body from the inner wall of the accommodation portion. The pressing force acts on the insertion main body, and the pressing force also acts on the insertion main body portion. In this case, the insertion main body portion has the same shape or a shape that causes a slight gap when pressed against the opening so that it can be easily inserted into the opening for sealing the elastic body formed on the spout side. Preferably there is. The elastic body having such a configuration opens the insertion body portion while elastically deforming the projection portion or the insertion body portion so that the projection portion is not caught by the opening portion when the insertion body portion is inserted into the opening portion of the spout. Push it into the club.

  In the elastic body having the above-described configuration, the pressing force acting on the elastic body can be changed (adjusted) by changing the size and the amount of the protrusion. That is, it is possible to apply an appropriate pressing force by changing the configuration of the elastic body to be sealed according to the use application of the spout.

  In the elastic body having the above-described configuration, as described in claim 2, the insertion main body portion has a length of at least 5 mm in a direction orthogonal to a direction in which the dispensing needle is inserted and removed, and is dispensed. It is preferable to have a thickness of 3 mm or more in the direction in which the needle is inserted and removed.

  That is, when the length (in this case, defined by the minimum width) of the insertion main body in a direction orthogonal to the direction in which the dispensing needle is inserted and removed is 3 mm or more, the normally used dispensing needle is inserted and removed. However, it is possible to effectively prevent cracking and damage. Further, since the thickness in the direction in which the dispensing needle is inserted / extracted is 3 mm or more, even if the dispensing needle is inserted / removed, it is possible to prevent cracking or damage. In addition, when the thickness becomes too thick, on the contrary, the resistance at the time of insertion / extraction of the dispensing needle is increased. Therefore, the thickness is preferably set to 5 mm or less.

  Further, in the elastic body having the above-described configuration, the protrusion formed on the insertion main body is formed in a direction orthogonal to the direction in which the dispensing needle is inserted / removed with respect to the insertion main body. The protrusion may be formed, or as in claim 4, the protrusion may be formed in a direction in which the dispensing needle is inserted and removed. Alternatively, it may be formed protruding in other directions. Moreover, about the insertion main-body part, what is necessary is just a shape which can fit the part except a protrusion part with respect to the opening part of a spout, such as columnar shape and prismatic shape (plate shape).

  Moreover, in the above-described configuration, it is preferable that a flat portion is formed at the top of the projecting portion as described in claim 5.

  In such a configuration, when the elastic body is inserted into the main body of the spout, the flat portion comes into contact with the inner wall of the housing portion, so that the elastic body is housed in the housing portion in a stable state. For this reason, the elastic body is not displaced when the dispensing needle is inserted and removed, and a stable accommodation state is maintained.

In order to solve the above-mentioned problem, the invention according to claim 6 is a spout having a main body welded to a container made of a sheet material and encapsulating an elastic body, wherein the main body is the sheet material. At least one of the pair of welding surfaces, the substantially flat exposed surface having the same height as the edge when the sheet material is welded to the pair of welding surfaces , and at least one of the pair of welding surfaces . An opening that is open and closed by the sheet material to be welded , and an elastic body that is inserted through the opening and has a protrusion formed therein, and elastic by the protrusion of the stored elastic body It has an accommodating part provided with the inner wall which gives a pressing force with respect to a body, and an insertion part which is connected with the above-mentioned accommodation part and into which a pouring needle which pours out a thing is inserted.

  In the spout having the above-described configuration, the elastic body is sealed in the housing portion through the opening formed in the welding surface, and the welding surface, the opening portion, the housing portion, and the insertion portion are integrally formed in the main body of the spout. Therefore, the entire structure of the spout is simplified. And if an elastic body is accommodated in an accommodating part via an opening part, a pressing force will act on the elastic body from the inner wall of an accommodating part. In this case, the elastic body enclosed in the accommodating portion is appropriately deformed with respect to its shape, such as a spherical shape, a cylindrical shape, a prismatic shape, a spherical shape, or a structure in which a protruding portion is formed in the insertion main body as described above. Is done.

  In addition, the spout body may be provided with a guide member such as a flange or a protrusion that can be positioned for an external device, for example, as described in claim 7.

  And in the spout of an above-described structure, as described in claim 8, a thin-film-like seal that seals the accommodating portion in the insertion portion formed in the main body or the communication portion provided in the guide member described above It is preferable to provide a wall.

  In such a configuration, it is possible to prevent dust or the like from adhering to the elastic body, or to prevent the contents from coming into contact with the elastic body.

According to the present invention, when an elastic body is enclosed in a spout, an elastic body on which a stable pressing force acts can be obtained.
Further, according to the present invention, a spout that stably applies a constant pressing force to an elastic body enclosed with a simple configuration regardless of the shape of the elastic body can be obtained.

Hereinafter, embodiments of the present invention will be specifically described with reference to the accompanying drawings.
FIGS. 1-5 is a figure which shows 1st Embodiment of the spout which concerns on this invention, and the elastic body enclosed with a spout, FIG. 1 (a) is the container with a spout to which the spout was attached. FIG. 1B is a side view, FIG. 2 is a view showing the structure of a spout, FIG. 2A is a perspective view, FIG. 1B is a plan view, FIG. 1C is a front view, and FIG. ) Is a side view, FIG. 3 is a perspective view showing a configuration of an elastic body enclosed in the spout, FIG. 4 is a perspective view showing a state in which the elastic body is enclosed in the spout, and FIG. It is a center sectional view of a spout which shows a state.

  As shown in FIG. 1, the spouted container 1 is prepared by preparing a plurality of sheet materials 2 a, for example, a plurality of flexible synthetic resin sheets that are relatively inexpensive materials, which are arranged to face each other and indicated by diagonal lines in a lattice shape. The container 2 is formed by thermally welding the region, and the spout 10 is sandwiched (heat-welded) between the sheet materials at the upper end portion thereof. The container 2 may be formed by bending one sheet material and welding the end region.

  The spout 10 includes a main body 12 having a pair of welding surfaces 11 to which the opposing sheet material 2 a is welded. The main body 12 has a substantially boat-shaped cross section so that the sheet material can be easily welded to the welding surfaces 11. It is formed to have a shape. In addition, although each welding surface 11 shown to a figure is comprised by the single curved surface, you may have a flat surface.

  An accommodating portion 15 is formed in the central portion of the main body 12. The accommodating portion 15 is formed by hollowing out the inside of the main body 12 and opening to the welding surfaces 11 on both sides, and the size thereof is the same as the shape of the elastic body 50 enclosed therein. It is comprised so that it may become substantially the same. When the elastic body 50 is inserted and sealed through the opening (opening) 15 a that opens to the welding surface 11, the accommodating portion 15 applies a pressing force toward the central region to the sealed elastic body. It is formed in a size that allows it to act. In addition, although the above-mentioned opening part 15a should just be formed in any one welding surface 11, the directionality is lost and the sealing operation of the elastic body 50 is performed by forming it in the welding surface 11 of both sides. It becomes easy.

  Here, the shape of the opening 15a formed on the welding surface and the elastic body 50 sealed in the accommodating portion via the opening 15a will be described.

  The opening 15a in the present embodiment is formed in a rectangular shape, and has a width W of 3 to 4 mm, a height H of 3 to 4 mm, and a depth D of 5 to 9 mm.

  On the other hand, the elastic body 50 enclosed in the accommodating portion through the opening 15a includes an insertion main body 50a having the same size as the opening 15a for inserting the elastic body described above, and the insertion main body 50a. On both the upper and lower sides, there is a substantially hemispherical (having a curved surface on the surface) projecting portion 50b that projects along the direction in which the dispensing needle is inserted and removed. In this case, the insertion main body 50a has the same width w, height h, and depth d as the width W, height H, and depth D of the opening 15a. In addition, both dimensions may be made to correspond exactly and the insertion main-body part 50a side may be made slightly small so that the insertion operation of an elastic body may be performed easily. Alternatively, if the insertion operation of the insertion main body portion can be performed to the extent that there is no problem, the insertion main body portion 50a side may be formed slightly larger.

  The main body 12 is formed with an insertion portion (insertion hole) 17 through which a dispensing needle (not shown) is inserted at the center thereof. The insertion portion 17 extends in the vertical direction of the housing portion 15 and extends linearly across the housing portion. In this case, it is preferable that a thin film-like sealing wall (seal) 21 is integrally formed on both insertion portions 17. That is, by forming such a sealing wall 21, it is possible to prevent dust or the like from adhering to the elastic body 50, or to prevent the contents from contacting the elastic body 50. The sealing wall 21 only needs to be formed in any part of the insertion portion 17. As shown in the figure, the sealing wall 21 is formed in an opening region with respect to the housing portion 15, or is exposed on the upper surface side of the main body 12. It may be formed in a region.

  In the spout of this embodiment, the upper surface side of the main body 12 is configured as a substantially flat exposed surface 23. The exposed surface 23 is an area exposed to the outside when the container with spout is finally created, and has the same height as the edge 2b of the sheet material to be welded and protrudes upward. No mouth or the like is formed. On the exposed surface 23, the insertion portion 17 is opened as it is, or a thin film-like sealing wall 21 for sealing the accommodating portion 15 as described above is exposed.

  Also, a jig (not shown) configured in a pin shape is inserted into the exposed surface 23 so that the welding operation can be performed easily and stably when the sheet material 2a is welded to the welding surface 11. A hole 24 is formed. The hole 24 of the present embodiment is formed on both sides of the insertion portion 17 (sealing wall 21), and is configured to be stably held when inserted into a pair of jigs. . That is, for the jig, the spout 10 is manually inserted or after a mechanical insertion process, the jig is guided to a welding portion of a welding apparatus (not shown) to be attached to each welding surface 11. On the other hand, the spout-equipped container is created by thermally welding the sheet material 2a.

  In addition, it is preferable to form the above-mentioned hole part 24 also in the exposed surface 26 (inner side exposed surface) by the side of a container. That is, according to the main body 12 having such a configuration, the exposed surface 23 side and the inner exposed surface 26 side have the same configuration, so that it is not necessary to consider the directionality and the welding operation can be easily performed. become.

  The spout 10 configured as described above can be integrally formed as a one-piece by molding a synthetic resin. In this case, the sealing wall 21 described above may be integrally formed, or a structure in which a thin film member such as an aluminum sheet is attached to the insertion portion 17 after spout molding may be employed. Further, the spout 10 having such a configuration is not a structure in which the elastic body is enclosed by dividing the main body 12 or opening and closing, but the elastic body 50 is accommodated through the opening 15 a formed in the welding surface 11. Since it is the structure enclosed in the part 15, the structure of the whole spout is simplified.

  The elastic body 50 configured as described above is inserted into and removed from the dispensing needle when the insertion main body portion 50a is inserted into the housing portion 15 through the elastic body sealing opening 15a formed in the main body 12 of the spout. A pressing force is applied from the upper and lower inner walls 15b and 15c of the accommodating portion to the protruding portion 50b having a curved surface protruding along the direction. That is, due to the pressing force acting from both protruding portions 50b, a force spreading in the radial direction acts on the insertion main body portion 50a, but the insertion main body portion 50a is in a state enclosed in the accommodating portion 15, As indicated by the arrow 5, a pressing force is applied also from the side walls 15 d and 15 e, and as a result, a pressing force directed toward the dispensing needle to be inserted is applied. Therefore, even if the dispensing needle is pulled out, the insertion mark is blocked by the pressing force acting on the insertion main body 50a, and no liquid leakage occurs.

  Moreover, since the protrusion part 50b is contacting the upper and lower inner walls 15b and 15c of the accommodating part 15 along the insertion / extraction direction of the extraction needle, when the extraction needle is inserted / extracted, the elastic body is moved in the vertical direction by the friction force. The elastic body 50 is always positioned and held in a stable state. As a result, the pressing force against the elastic body 50 becomes stable, and the elastic body 50 does not fluctuate (displace) in the housing portion when the dispensing needle is inserted / removed. Even if the needle is inserted, it is possible to prevent liquid leakage and the like.

  Further, as described above, the protruding portion 50b formed on the insertion main body portion is substantially hemispherical and has a curved surface. Therefore, it is easy to enclose the elastic body 50 in the spout accommodating portion. Become.

  Furthermore, according to the structure of the elastic body 50 as described above, the pressing force acting on the elastic body can be changed by encapsulating the elastic bodies having different protruding amounts of the protruding portions 50b according to the use application of the spout. It is possible to easily adjust (optimize) the pressing force acting on the dispensing needle. That is, it is possible to easily adjust the pressing force acting on the dispensing needle by changing the configuration of the elastic body enclosed therein while keeping the configuration of the spout itself the same.

  In the above-described configuration, when the stored item is actually taken out from the containing body with the spout, the extraction needle 17 is inserted into the insertion portion 17 formed on the upper side, and the lower insertion portion 17 is interposed via the elastic body 50. It is possible to pour out the contents in the container. In this case, in the above-described configuration, since the sealing walls 21 are formed in the insertion portions on both sides, it is possible to prevent dust or the like from adhering to the elastic body or the container to contact the elastic body 50.

  In addition, about the container with a spout to which the spout 10 as described above is welded, as shown in FIG. 1, the portion (mouth portion or plug portion) protruding upward from the edge portion 2b of the welded sheet material 2a is In addition, since the dead space is eliminated when it is attached to a case not shown in the drawing, it is possible to secure the maximum amount of accommodation. Accordingly, the configuration of the portion of the case portion that holds the spout-equipped container is also simplified, so that the position can be easily changed according to the requirements of the external device. For example, in the configuration shown in FIG. 1, the spout 10 can be variously changed according to the request of the external device, such as welding to the side part of the sheet member or welding to the corner part. In addition, the above-described hole 24 is used as a means for stabilizing the installation on the case by providing a corresponding pin in the case portion in advance and inserting the hole 24 into the pin at the time of installation on the case. It becomes possible.

  The elastic body enclosed in the spout described above is an insertion main body that can be inserted into the opening 15a formed in the main body 12 of the spout 10, and a state in which the insertion main body protrudes from the insertion main body and is accommodated in the accommodation portion. Thus, any structure may be used as long as it has a protruding portion to which a pressing force acts from the inner wall of the accommodating portion 15. Therefore, the shape of the elastic body can be configured as shown in FIGS. 6A and 6B, for example.

  An elastic body 60 shown in FIG. 6A is obtained by integrally forming a substantially hemispherical protruding portion 60b on the entire upper and lower surfaces of a cylindrical insertion main body 60a. When such an elastic body 60 is enclosed in the accommodating portion 15 via the opening 15a, the protruding portion 60b is pressed from the upper and lower walls 15b and 15c of the accommodating portion 15, and the insertion main body portion 60a expands in the radial direction. Then, a pressing force toward the central direction acts on the insertion main body portion 60a spreading in the radial direction from the side walls 15d and 15e of the housing portion 15. Further, the elastic body 62 shown in FIG. 6B is formed by integrally forming a substantially hemispherical protruding portion 62b in a substantially central region on both sides of a rectangular parallelepiped insertion main body portion 62a. When such an elastic body 62 is enclosed in the accommodating portion 15 through the opening 15a, the protruding portion 62b is pressed from the side walls 15d and 15e of the accommodating portion 15, and the insertion main body portion 62a is pushed from the side wall of the accommodating portion 15. Then, a pressing force toward the center direction is applied.

  In any elastic body shown in FIG. 6, the width w and height h of the insertion main body portions 60a and 62a substantially coincide with the width W and height H of the opening 15a formed in the main body of the spout. It is formed as follows. Of course, in such a configuration, the pressing force can be adjusted by changing the size of each of the projecting portions 60b and 62b.

  FIG. 7 is a view showing a modification of the spout described above. The main body 12 of the spout 10 is formed with a substantially rectangular opening 15a having a width W larger than the height H. By reducing the height H of the opening 15a in this way, it becomes possible to reduce the thickness (height h) of the enclosed elastic body and reduce the resistance at the time of insertion and removal of the dispensing needle, By increasing the width W in the direction orthogonal to the insertion / extraction direction, it is possible to increase the width w of the enclosed elastic body and effectively prevent the elastic body from being damaged when the dispensing needle is inserted / removed.

  Specifically, for example, an elastic body as shown in FIG. 8 is enclosed in the opening 15a of the spout shown in FIG.

  An elastic body 70 shown in FIG. 8A is obtained by integrally forming a substantially hemispherical protruding portion 70b in the central region of the upper and lower surfaces of a rectangular parallelepiped insertion main body 70a. When such an elastic body 70 is enclosed in the accommodating part 15 via the opening 15a, the protrusion part 70b is pressed from the upper and lower walls of the accommodating part 15, and the insertion main-body part 70a spreads in the width direction. Then, a pressing force directed toward the center from the side wall of the accommodating portion 15 acts on the insertion main body portion 70a spreading in the width direction.

  In addition, it is preferable to form the flat part 70c as shown in FIG.8 (b) in the top part of the protrusion part 70b formed as mentioned above. By forming the flat portion 70c in this way, when the elastic body 70 is sealed in the spout accommodating portion 15, the flat portion 70c comes into contact with the inner wall of the accommodating portion, so that the elastic body 70 is in a stable state. It is accommodated in the accommodating part 15. For this reason, the elastic body 70 is not displaced when the dispensing needle is inserted and removed, and a stable accommodation state is maintained.

  Moreover, the elastic body 72 shown in FIG.8 (c) integrally forms the substantially semi-cylindrical protrusion part 72b in the whole surface of both sides of the rectangular parallelepiped insertion main-body part 72a. When such an elastic body 72 is enclosed in the accommodating portion 15 via the opening 15a, the protruding portion 72b is pressed from the side wall of the accommodating portion 15, and the insertion main body portion 72a is centered from the side wall of the accommodating portion 15 in the center direction. The pressing force toward is applied.

  In the configuration of the elastic body and spout as described above, the diameter of the extraction needle to be inserted and removed (diameter of about 1.5 mm) is taken into consideration so that the elastic body is not damaged when the extraction needle is inserted and extracted. It is preferable to keep it. Specifically, for example, in the case of an elastic body as shown in FIG. 8, there should be a length of at least 3 mm in the direction (width direction w or depth direction d) perpendicular to the direction in which the dispensing needle is inserted and removed. It ’s fine. Moreover, the thickness (at least height h) should just be 3 mm or more in the direction (height h) where the extraction needle is inserted / extracted. However, if the thickness is too thick, the resistance at the time of insertion / extraction increases, so it is preferable to set it to 5 mm or less.

  As described above, with respect to the elastic body enclosed in the spout 10 constituted by one piece without dividing the main body 12, as described above, the insertion main body portion and the protruding portion protruding from the insertion main body portion are provided. Although the spout according to the present invention is provided, the elastic body to be sealed is not limited to such a configuration. For example, as shown in FIGS. 9A and 9B, a simple spherical elastic body 80, a cylindrical elastic body 82, or a prismatic (not shown) elastic body may be enclosed.

  Further, in the present invention, the spout is formed as a single piece without dividing the main body in which the elastic body is enclosed, and an opening is formed that is in an open state with respect to the storage portion in which the elastic body is stored. Anything is fine. For this reason, the spout may be configured as shown in FIG. 10, for example.

  In the spout 10 shown in FIG. 10, a guide member 100 that can be positioned for an external device, for example, is formed on the upper surface of the main body 12 in which the elastic body 50 having the above-described configuration is enclosed. Such a guide member 100 can be configured as a plate-like flange as shown in the drawing, or can be configured by a protrusion (not shown) protruding from the main body 12. By forming such a guide member 100, it becomes possible to mount the container with spout while positioning it on the external device easily.

  The guide member 100 is formed with a communication portion 110 that communicates with the insertion portion 17 formed in the spout 10, and the communication portion 110 is provided with a thin-film sealing wall as described above. May be. Further, the guide member 100 may be integrally formed on the upper surface of the spout main body 12 or may be connected to the main body 12 via a cylindrical communication path.

  Although the embodiment of the present invention has been described above, the present invention can be variously modified as follows, for example, in addition to the above-described embodiment.

  About the elastic body enclosed with a spout, about the protrusion direction and the number of formation of the protrusion part formed in an insertion main-body part, it can change suitably. Moreover, about the shape of a protrusion part, you may comprise only with a curved surface like embodiment mentioned above, and may comprise with the combination of a curved surface and a plane.

It is a figure which shows 1st Embodiment of the spout which concerns on this invention, (a) is a top view which shows the structure of the container with a spout to which the spout was attached, (b) is a side view. It is a figure which shows the structure of a spout, (a) is a perspective view, (b) is a top view, (c) is a front view, (d) is a side view. The perspective view which shows the structure of the elastic body enclosed with a spout. The perspective view which shows the state which encloses an elastic body in a spout. The center sectional drawing of the spout which shows the state by which the elastic body was enclosed. (A) And (b) is a figure which shows the modification of the elastic body enclosed with the spout shown in FIG. The figure which shows the modification of a spout. (A)-(c) is a figure which shows the structural example of the elastic body enclosed with the spout shown in FIG. 7, respectively. (A) And (b) is a figure which shows another modification of the elastic body enclosed with a spout. The figure which shows 2nd Embodiment of a spout.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Container with spout 2a Sheet material 10 Spout 11 Welding surface 12 Main body 15 Storage part 15a Opening part 17 Insertion part 21 Sealing wall 50, 60, 62, 70, 72, 80, 82 Elastic body 50a, 60a, 62a, 70a 72a Insert body 50b, 60b, 62b, 70b, 72b Projection

Claims (8)

Having a pair of welding surfaces that will be welded to the housing body consists of sheet material, and a opening of the elastic body enclosed which is closed by the sheet material to be opened the weld to at least one of the pair of weld surface In an elastic body that is sealed through a spout and is inserted and withdrawn from the spout needle that pours out the contents in the container.
And inserting the main body portion of substantially the same shape as the opening of the pre-Symbol bullet resistant body for enclosure,
A projecting portion that is integrally formed so as to project from the insertion main body portion, and when a sealing operation is performed through the opening, a pressing force acts from the inner wall of the housing portion of the spout,
An elastic body comprising:   The insertion main body has a length of at least 5 mm in a direction perpendicular to the direction in which the dispensing needle is inserted and removed, and has a thickness of 3 mm or more in the direction in which the dispensing needle is inserted and removed. The elastic body according to claim 1.   The elastic body according to claim 1, wherein the protrusion is formed so as to protrude from the insertion main body in a direction orthogonal to a direction in which the dispensing needle is inserted and removed.   The elastic body according to any one of claims 1 to 3, wherein the protruding portion is formed to protrude from the insertion main body portion in a direction in which the dispensing needle is inserted and removed.   The elastic body according to any one of claims 1 to 4, wherein a flat portion is formed on a top portion of the protruding portion. In a spout having a main body welded to a container composed of a sheet material and encapsulating an elastic body,
The main body includes a pair of welding surfaces to which the sheet material is welded, a substantially flat exposed surface having the same height as an edge when the sheet material is welded to the pair of welding surfaces, and the pair of An opening that opens at least in one direction with respect to the welding surface and is closed by the sheet material to be welded , and an elastic body that is inserted through the opening and has a protrusion formed therein, and accommodated elasticity A housing portion having an inner wall that applies a pressing force to the elastic body by the projecting portion of the body; and an insertion portion that communicates with the housing portion and into which a dispensing needle that pours out the stored material is inserted. Spout characterized by that.   The spout according to claim 6, wherein the main body includes a communication member that communicates with the insertion portion and is positioned with respect to an external device.   The spout according to claim 6 or 7, wherein the insertion part or the communication part is provided with a thin-film-like sealing wall that seals the housing part.

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