Spout and manufacturing method of spout

Abstract

To provide a spout with which a valve body can be stably seated on a seat surface of a valve seat part, and a manufacturing method for the spout.SOLUTION: A spout is provided with a reinforcing part 112f that reinforces a connecting part 112e, and at least on the bottom surface of a second valve seat part 112d, a first guide part 112g1 and a second guide part 112g2 are provided to position a valve body support part 112 by a special jig used when the valve body 120 is mounted to the valve body support part 112, and the first guide part 112g1 and the second guide part 112g2 are configured to abut against the front end surface of the special jig regardless of the circumferential positional relationship of the special jig with respect to a nozzle 110.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a spout provided in a squeeze container and a method for manufacturing the spout. [Background technology]

[0002] Conventionally, a technique is known in which a valve body is provided at the nozzle of a squeeze container (see Patent Document 1). With this technique, the contents can be dispensed from the nozzle by pressurizing the container body, while preventing the contents from leaking from the nozzle when the container body is not pressurized. Furthermore, in the technique disclosed in Patent Document 1, the valve body support portion that supports the valve body is itself configured to be swingable. As a result, when the pressure applied to the container body is low, only the valve formed by the valve body opens, and when the pressure is high, the valve body support portion tilts, allowing a large amount of contents to be dispensed.

[0003] However, with the technology described above, it was found that it was difficult to stably seat the valve disc on the seat surface of the valve seat when the valve disc was attached to the valve disc support portion. This point will be explained with reference to Fig. 7. Fig. 7 is a schematic diagram of a spout according to a conventional example, where (a) is a part of a schematic cross-sectional view of the spout, and (b) is a view of the spout as seen from below.

[0004] Spout 200 includes nozzle 210 having cylindrical body 211, valve element support 212 integrally formed on the inner wall surface of body 211, and valve element 220 supported by valve element support 212. Valve element 220 includes stem 221 and flange-shaped valve main body 222 integrally formed on stem 221. Valve element support 212 includes mounting port 212a to which stem 221 is attached, spout 212b formed concentrically with mounting port 212a, and connecting portion 212c connecting valve seat portions on the radially inner and outer sides of spout 212b. With spout 200 configured as described above, when the pressure applied to the container body is low, only valve main body 222 deforms, dispensing a small amount of content, whereas when the pressure applied is high, connecting portion 212c deforms and valve element support 212 tilts, dispensing a large amount of content.

[0005] In this spout 200, the valve element 220 is attached to the valve element support portion 212 by press-fitting the stem portion 221 of the valve element 220 into the mounting port 212a of the valve element support portion 212. When the valve element 220 is attached to the valve element support portion 212, the valve main body portion 222 is pressed against the seating surface and is in a slightly elastically deformed state. Therefore, the valve main body portion 222 tries to return to its original shape, and a force (see arrow F) is generated that presses the valve main body portion 222 against the seating surface. This generates a moment as shown by arrow M in the valve element support portion 212, causing the valve element support portion 212 to tilt slightly, and it has been found that this can cause the valve main body portion 222 to move slightly away from the seating surface near the side opposite to the connecting portion 212c. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Patent No. 5804849 Summary of the Invention [Problem to be solved by the invention]

[0007] An object of the present invention is to provide a spout and a method for manufacturing a spout that allows a valve body to be stably seated on the seating surface of a valve seat portion. [Means for solving the problem]

[0008] The present invention employs the following means to solve the above problems.

[0009] That is, the spout of the present invention is a nozzle having a cylindrical body; a valve element support portion integrally provided on an inner wall surface of the body portion; a valve body supported by the valve body support portion; A spout comprising: The valve body is A shaft portion; a flange-shaped valve body portion integrally provided with the shaft portion; Equipped with The valve body support portion is a mounting port to which the shaft portion is attached; a first valve seat portion provided radially outward of the mounting port and concentric with the mounting port, the first valve seat portion having a seat surface of the valve main body portion; a pouring outlet that is provided concentrically with the attachment port on the radially outer side of the first valve seat portion and that is opened and closed by the valve main body; a second valve seat portion provided radially outward of the spout and concentric with the attachment port, the second valve seat portion having a seat surface of the valve main body; a connecting portion that connects the first valve seat portion and the second valve seat portion; a reinforcing portion that reinforces the connecting portion; Along with providing At least a guide portion is provided on the underside of the second valve seat portion so that when the valve body is attached to the valve body support portion, the valve body support portion is positioned by a dedicated jig used when attaching the valve body, and the guide portion is configured to abut against the tip surface of the dedicated jig regardless of the circumferential positional relationship of the dedicated jig with respect to the nozzle.

[0010] According to the present invention, because the reinforcing portion reinforces the connecting portion, even if a force acts on the seating surface to return the valve body to its original shape when the valve body is attached to the valve body support portion, tilting of the valve body support portion is suppressed. This makes it possible to suppress the valve body from separating from the seating surface. Furthermore, although the provision of the reinforcing portion can cause an obstacle when attaching the valve body to the valve body support portion, the provision of a guide portion configured to abut against the tip surface of the dedicated jig regardless of the circumferential positional relationship of the dedicated jig with respect to the nozzle prevents the installation work from being hindered.

[0011] The connecting portion may be connected at only one point.

[0012] This allows a sufficient area for the mounting opening to be secured.

[0013] The guide portions may be provided in a plurality at intervals in the circumferential direction.

[0014] As a result, the plurality of guide portions abut against the tip surface of the dedicated jig, so that the valve body support portion is stably supported by the dedicated jig.

[0015] It is preferable that the reinforcing portion also abuts against the tip surface of the dedicated jig when the valve body is attached to the valve body support portion.

[0016] In this way, the reinforcing portion can also function as a guide portion.

[0017] The guide portion may also be provided on the lower surface of the first valve seat portion.

[0018] As a result, the valve body support portion is supported by the dedicated jig even near the mounting port.

[0019] Preferably, the outer peripheral surface of a first guide portion of the guide portion provided on the underside of the first valve seat portion and the outer peripheral surface of the first valve seat portion are located on the same circumference, and the inner peripheral surface of a second guide portion of the guide portion provided on the underside of the second valve seat portion and the inner peripheral surface of the second valve seat portion are located on the same circumference.

[0020] This prevents the guide portion from narrowing the area of ​​the spout.

[0021] The lower surface of the guide portion may be positioned on an imaginary plane formed by rotating the lower surface of the reinforcing portion around the central axis of the mounting opening.

[0022] The reinforcing portion may have a thickness that decreases radially inward.

[0023] The reinforcing portion may be connected to an inner wall surface of the body portion.

[0024] This can increase the strength of the reinforcing portion.

[0025] Further, the method for producing the spout of the present invention includes the steps of: a step of positioning the valve element support portion by abutting a tip surface of a dedicated jig against lower surfaces of the first valve seat portion and the second valve seat portion; a step of inserting the stem portion into the mounting opening to mount the valve body to the valve body support portion in a state where the valve body support portion is positioned by the dedicated jig; The present invention is characterized by having the following.

[0026] The above configurations may be combined as much as possible. [Effects of the Invention]

[0027] As described above, according to the present invention, the valve body can be stably seated on the seating surface of the valve seat portion. [Brief explanation of the drawings]

[0028] [Figure 1]FIG. 1 is a schematic view of a squeeze container equipped with a spout according to a first embodiment of the present invention. [Figure 2] FIG. 2 is a schematic diagram of the top and bottom surfaces of the spout according to the first embodiment of the present invention. [Figure 3] FIG. 3 is a schematic diagram of a valve body according to the first embodiment of the present invention. [Figure 4] FIG. 4 is a schematic cross-sectional view showing the state when contents are poured out from the spout according to the first embodiment of the present invention. [Figure 5] FIG. 5 is a manufacturing process diagram of the spout according to Example 1 of the present invention. [Figure 6] FIG. 6 is a schematic diagram of a squeeze container equipped with a spout according to a second embodiment of the present invention. [Figure 7] FIG. 7 is a schematic diagram of a conventional spout. DETAILED DESCRIPTION OF THE INVENTION

[0029] The following detailed description of the present invention will be given by way of example with reference to the accompanying drawings, although the dimensions, materials, shapes, relative positions, etc. of the components described in the examples are not intended to limit the scope of the present invention unless otherwise specified.

[0030] Example 1 A spout according to Example 1 of the present invention and a method for manufacturing the spout will be described with reference to FIGS. 1 to 5. FIG. 1 is a schematic diagram of a squeeze container equipped with a spout according to Example 1 of the present invention, showing the spout in a schematic cross-sectional view, with parts of the exterior of other components indicated by dotted lines to show only the positions of the components. FIG. 2 is a schematic diagram of the spout according to Example 1 of the present invention, where (a) is a plan view and (b) is a bottom view. The cross-sectional view of the spout in FIG. 1 corresponds to the cross-sectional view taken along line AA in FIG. 2(a). FIG. 3 is a schematic diagram of a valve body according to Example 1 of the present invention, where (a) is a plan view, (b) is a schematic cross-sectional view (cross-sectional view taken along line BB in (a)), and (c) is a plan view of a modified example. FIG. 4 is a schematic cross-sectional view showing the state when contents are poured from the spout according to Example 1 of the present invention. FIG. 5 is a diagram showing the manufacturing process of the spout according to Example 1 of the present invention.

[0031] <Squeeze container> The overall configuration of a squeeze container 1 equipped with a spout 100 according to a first embodiment of the present invention will be described with reference to Fig. 1. In this embodiment, the squeeze container 1 is described as a pouch. The squeeze container 1 according to this embodiment can be suitably applied to fluids (such as soy sauce) whose contents are relatively low in viscosity.

[0032] The squeeze container 1 comprises a container body (pouch body) 10, a spout 100 attached to one end of the container body 10, and a cap 20 that can be attached and detached to the spout 100. The spout 100 is preferably made of a relatively hard resin material such as high-density polyethylene (HDPE). The container body 10 is made of multiple synthetic resin films and is flexible. This allows the contents to be poured out of the spout 100 by applying pressure to the container body 10 with fingers or the like.

[0033] The spout 100 includes a nozzle 110 and a valve element 120 provided inside the nozzle 110, which together form a valve structure. When pressure is applied to the container body 10 with fingers or the like, the valve opens and the contents are dispensed from the spout 100, and when pressure on the container body 10 is stopped, the dispensing of the contents can be stopped. The valve element 120 is preferably made of a relatively soft resin material such as low-density polyethylene (LDPE). The valve element 120 is located further inside the squeeze container 1 (towards the container body 10) than the tip of the nozzle 110. This prevents the valve element 120 from coming into contact with fingers, a plate, or the like, and prevents damage to the valve element 120.

[0034] <Spout> The spout 100 includes a nozzle 110 and a valve body 120. The nozzle 110 includes a cylindrical body portion 111, a valve body support portion 112 integrally formed on the inner wall surface of the body portion 111, a male thread portion 113 formed on the outer circumferential surface of the body portion 111, and a first flange portion 114 and a second flange portion 115 also formed on the outer circumferential surface of the body portion 111. The first flange portion 114 serves to prevent foreign matter from entering between the cap 20 and the body portion 111. The second flange portion 115 also serves as a welding portion for fixing the container body 10. The valve body 120 includes a shaft portion 121, a flange-shaped valve main body portion 122 integrally formed on the shaft portion 121, and a protrusion portion 123 provided on the opposite side of the valve main body portion 122 from the shaft portion 121.

[0035] The valve element support portion 112 includes a mounting port 112a to which the shaft portion 121 is attached, and a first valve seat portion 112b that is provided concentrically with the mounting port 112a on the radially outer side of the mounting port 112a and has a seat surface for the valve main body portion 122. The valve element support portion 112 also includes a spout 112c that is provided concentrically with the mounting port 112a on the radially outer side of the first valve seat portion 112b and is opened and closed by the valve main body portion 122. The valve element support portion 112 also includes a second valve seat portion 112b that is provided concentrically with the mounting port 112a on the radially outer side of the spout 112c and has a seat surface for the valve main body portion 122. 2d, and a connecting portion 112e that connects first valve seat portion 112b and second valve seat portion 112d. Connecting portion 112e is connected at only one point. By providing this connecting portion 112e, the planar shape of spout 112c is approximately C-shaped. In this way, by adopting a configuration in which connecting portion 112e is connected at only one point, the area of ​​spout 112c is prevented from being narrowed by connecting portion 112e. Note that "concentric" does not necessarily mean "concentric (the central axes coincide)" and means that the central axes may be misaligned within a range that does not cause functional problems. Therefore, the central axis of the mounting port 112a and the central axis of the first valve seat portion 112b, etc. may be slightly misaligned.

[0036] The valve element support portion 112 according to this embodiment is provided with a reinforcing portion 112f that reinforces the connecting portion 112e. The reinforcing portion 112f is configured so that its thickness decreases radially inward, and is triangular in shape when viewed from the side. In this embodiment, the reinforcing portion 112f is configured to be connected to the inner wall surface of the body portion 111, thereby increasing its strength. However, depending on the required strength, the reinforcing portion 112f may be configured not to be connected to the inner wall surface of the body portion 111.

[0037] Furthermore, in the valve body support portion 112 according to this embodiment, when the valve body 120 is attached to the valve body support portion 112, guide portions (first guide portion 112g1 and second guide portion 112g2) are provided to position the valve body support portion 112 by a dedicated jig 50 used when attaching the valve body 120 (see Figure 5).

[0038] As described above, the valve element 120 includes the stem 121 and the flange-shaped, thin-plate-shaped (disk-shaped in this embodiment) valve body 122 that is integral with the stem 121. The valve body 122 is disposed concentrically with the stem 121. In FIG. 3(b), the valve body 122 is indicated by a solid line when no external force is applied, and the valve body 122 is indicated by a dotted line when the valve element 120 is attached to the valve element support portion 112 and seated on the seating surface. The stem 121 is fixed to the mounting port 112a of the valve element support portion 112 by press-fitting. The valve body 122 serves to open and close the spout 112c provided in the valve element support portion 112. More specifically, the valve is closed when the valve body 122 seats on the seating surface of the second valve seat portion 112d. Furthermore, the valve opens when the valve body 122 moves away from the seating surface of the second valve seat 112d.

[0039] In addition, when the contents are relatively viscous, such as honey or ketchup, it is preferable to employ a configuration in which multiple slits 122a are provided in the valve body 122, as in the valve element 120 shown in Fig. 3(c). This makes the valve body 122 more easily deformable, allowing the valve to be opened and closed appropriately even if the contents have a high viscosity. Furthermore, even if slits 122a are provided, if the viscosity of the contents is high, it is possible to prevent the contents from leaking out of the slits 122a when the valve is closed.

[0040] <Valve disc movement> The operation of valve body 120 will be described with reference to Figure 4. When dispensing the contents, with cap 20 removed, for example, the tip of spout 100 is tilted downward and pressure is applied to container body 10 with fingers or the like. Figure 4 shows a schematic cross-sectional view of the area near the tip of spout 100 at this time. As the internal pressure increases due to pressurization of container body 10, the valve opens. In other words, valve body 122 moves away from the seating surfaces of first valve seat 112b and second valve seat 112d, opening spout 112c. This causes the contents to be dispensed from spout 112c (see arrows in the figure).

[0041] <Spout manufacturing method (assembly method)> In particular, a manufacturing method (assembly method) of the spout 100 according to this embodiment will be described with reference to Fig. 5. First, a tip end surface 51 of a dedicated jig 50 used when attaching the valve body 120 is The valve element support part 112 is positioned by abutting against the undersides of the first valve seat part 112b and the second valve seat part 112d (see FIG. 5(a)). Then, the valve element 120 is inserted into the body part 111 of the nozzle 110 by a fixture 60 for temporarily fixing the valve element 120 (see arrow S in FIG. 5(a)). The configuration of the fixture 60 is not limited as long as it can temporarily fix the valve element 120. In this embodiment, a fitting hole 61 that can fit onto the protrusion 123 of the valve element 120 is provided at the tip of the fixture 60, and the valve element 120 can be fixed to the fixture 60 by fitting the protrusion 123 into this fitting hole 61.

[0042] Then, with the valve element support portion 112 positioned by the dedicated jig 50, the shaft portion 121 of the valve element 120 is inserted into the mounting opening 112a of the valve element support portion 112, thereby attaching the valve element 120 to the valve element support portion 112. Note that a relief hole 52 is provided at the tip of the dedicated jig 50 to prevent interference with the shaft portion 121. Thereafter, the dedicated jig 50 and the fixing device 60 are removed from the body portion 111. By setting the fitting force between the fitting hole 61 and the protruding portion 123 to be lower than the press-fit force of the shaft portion 121 against the mounting opening 112a, when removing the fixing device 60, the fixing device 60 can be removed while the valve element 120 remains attached to the valve element support portion 112. Note that an air suction mechanism may be built into the fixing device 60 to hold the valve element 120 by suction.

[0043] Here, the work of inserting the dedicated jig 50 into the body portion 111 and positioning the valve element support portion 112 may be performed manually by an operator or by using an automatic machine. In addition, the work of press-fitting the shaft portion 121 of the valve element 120 into the mounting opening 112a using the fixing tool 60 may also be performed manually by an operator or by using an automatic machine.

[0044] In this embodiment, in order to improve workability when positioning the valve body support portion 112 using the dedicated jig 50, a configuration is adopted that allows the valve body support portion 112 to be positioned using the dedicated jig 50 regardless of the circumferential positional relationship of the dedicated jig 50 with respect to the nozzle 110.

[0045] That is, in the case of the nozzle 210 according to the conventional example shown in FIG. 7 , the lower surface of the valve element support portion 212 is flat. Therefore, for example, by using a jig having an escape hole for the shaft portion 221 at the tip of a cylindrical member, the valve element support portion 212 can be positioned at the tip of the jig regardless of the circumferential position of the jig relative to the nozzle. In contrast, in this embodiment, a reinforcing portion 112f is provided on the lower surface of the valve element support portion 112. Therefore, if a configuration in which only the reinforcing portion 112f is provided on the lower surface of the valve element support portion 112 is adopted, it is necessary to use a dedicated jig that has, for example, not only an escape hole for the shaft portion but also a slit at the tip of the cylindrical member to prevent the reinforcing portion 112f from hitting it. Furthermore, the circumferential positional relationship between the dedicated jig and the nozzle must be adjusted so that the reinforcing portion 112f fits into the slit, and then the lower surface of the valve element support portion 112 must be positioned using the dedicated jig.

[0046] Therefore, in this embodiment, as described above, guide portions are provided on the valve element support portion 112. The first guide portion 112g1 is provided on the lower surface of the first valve seat portion 112b, and the second guide portion 112g2 is provided on the lower surface of the second valve seat portion 112d. These first guide portion 112g1 and second guide portion 112g2 are configured to abut against the tip surface 51 of the dedicated jig 50 regardless of the circumferential positional relationship of the dedicated jig 50 with respect to the nozzle 110. The tip surface 51 of the dedicated jig 50 is configured as a tapered surface whose diameter decreases toward the tip, and has a relief hole 52 in the center of the tip.

[0047] The guide portions will be described in more detail below. In this embodiment, a plurality of first guide portions 112g1 and second guide portions 112g2 are provided at intervals in the circumferential direction. The outer peripheral surface of the first guide portion 112g1 and the outer peripheral surface of the first valve seat portion 112b are located on the same circumference. (In other words, the outer peripheral surface of the first guide portion 112g1 and the outer peripheral surface of the first valve seat portion 112b are located on the same circumference.) The first imaginary cylindrical surface is an imaginary cylindrical surface having the same outer diameter as the first valve seat portion 112b. In other words, the outer peripheral surface of the first guide portion 112g1 and the outer peripheral surface of the first valve seat portion 112b are configured to be flush with each other. The inner peripheral surface of the second guide portion 112g2 and the inner peripheral surface of the second valve seat portion 112d are configured to be flush with each other. (In other words, the inner peripheral surface of the second guide portion 112g2 and the inner peripheral surface of the second valve seat portion 112d are located on a second imaginary cylindrical surface. The second imaginary cylindrical surface is an imaginary cylindrical surface having the same inner diameter as the second valve seat portion 112d.) In other words, the inner peripheral surface of the second guide portion 112g2 and the inner peripheral surface of the second valve seat portion 112d are configured to be flush with each other. By adopting the above configuration, the first guide portion 112g1 and the second guide portion 112g2 do not protrude toward the spout 112c, so the area of ​​the spout 112c is not narrowed by the first guide portion 112g1 and the second guide portion 112g2.

[0048] In this embodiment, the reinforcing portion 112f is configured to abut against the tip surface of the dedicated jig 50 when the valve element 120 is attached to the valve element support portion 112. In other words, the lower surfaces of the first guide portion 112g1 and the second guide portion 112g2 are configured to be located on an imaginary plane created by rotating the lower surface of the reinforcing portion 112f around the central axis of the attachment opening 112a. This imaginary plane has the same shape and dimensions as the tip surface 51 (tapered surface) of the dedicated jig 50. In this way, in this embodiment, the reinforcing portion 112f also functions as a guide portion.

[0049] <Advantages of the spout and spout manufacturing method according to this embodiment> In the spout 100 according to this embodiment, the connecting portion 112e of the valve element support portion 112 is reinforced by the reinforcing portion 112f. Therefore, even if a force that causes the valve main body portion 122 to return to its original shape is generated on the seating surface when the valve element 120 is attached to the valve element support portion 112, the valve element support portion 112 is prevented from tilting. This prevents the valve main body portion 122 from separating from the seating surface. Therefore, the valve element 120 can be stably seated on the seating surface of the valve seat, and unintended leakage of the contents can be prevented.

[0050] Furthermore, providing the reinforcing portion 112f may cause an obstacle when attaching the valve element 120 to the valve element support portion 112. However, in this embodiment, a configuration is adopted in which the first guide portion 112g1 and the second guide portion 112g2 are provided on the valve element support portion 112. As a result, the first guide portion 112g1 and the second guide portion 112g2 abut against the tip surface of the dedicated jig 50 regardless of the circumferential positional relationship of the dedicated jig 50 with respect to the nozzle 110, so that the attachment work is not hindered. Note that, since a plurality of the first guide portions 112g1 and the second guide portions 112g2 are provided at intervals in the circumferential direction, a plurality of guide portions abut against the tip surface of the dedicated jig 50, and the valve element support portion 112 is stably supported by the dedicated jig 50. In this embodiment, a first guide portion 112g1 is provided on the underside of the first valve seat portion 112b, and a second guide portion 112g2 is provided on the underside of the second valve seat portion 112d. Therefore, the valve element support portion 112 is supported by the dedicated jig 50 over a wide range from the vicinity of the mounting opening to the outside in the radial direction.

[0051] Example 2 Figure 6 shows Example 2 of the present invention. While Example 1 above shows a configuration in which the spout and cap are configured separately, this example shows a configuration in which the spout and cap are configured as an integrated unit. Since the other basic configurations and operations are the same as those of Example 1, the same components are designated by the same reference numerals and their description will be omitted as appropriate.

[0052] 6 is a schematic diagram of a squeeze container equipped with a spout according to a second embodiment of the present invention. In FIG. 6, the spout is shown in a schematic cross-sectional view, and the container body is shown externally to show only the arrangement position. A portion of the view is shown by a dotted line.

[0053] The squeeze container according to this embodiment includes a container body 10X and a spout 100 attached to one end of the container body 10X. The container body 10X is made of a flexible material such as a resin. The spout 100 integrally includes a nozzle portion 110X having a cylindrical body portion 111, a valve support portion 112 integrally formed on the inner wall surface of the body portion 111, an opening / closing stopper portion 117 for opening and closing a mouth portion 116 formed at the tip of the body portion 111, and a hinge portion 118. The opening / closing stopper portion 117 is inserted into the mouth portion 116 as shown by the dotted line in the figure to close the mouth portion 116, and can be removed from the mouth portion 116 to open the mouth portion 116 as shown by the solid line.

[0054] In this embodiment as well, the valve element 120 is attached to the valve element support part 112. The configurations of the valve element support part 112 and the valve element 120 are as described in the first embodiment, and the method of assembling the valve element 120 to the valve element support part 112 is also the same as in the first embodiment, so the description thereof will be omitted.

[0055] The spout 100 according to this embodiment configured as described above can also achieve the same effects as those of the above-described Example 1. In this way, the spout and the method for manufacturing the spout according to the present invention can be applied to spouts used in various squeeze containers.

[0056] (others) In the above embodiment, the reinforcing portion 112f is configured so that its thickness decreases toward the inside in the radial direction, and is configured to have a triangular shape when viewed from the side. However, the shape of the reinforcing portion is not particularly limited. For example, as shown in the circle in Figure 1, a reinforcing portion that is square when viewed from the side can also be used. Similarly, various shapes can be used for the shape of the guide portion.

[0057] In the above embodiment, the reinforcing portion 112f also functions as a guide portion. However, a configuration in which the reinforcing portion does not function as a guide portion can be adopted. For example, the positions of the lower surfaces of the guide portions (first guide portion 112g1 and second guide portion 112g2) can be set lower than the position of the lower surface of the reinforcing portion 112f, so that only the guide portions come into contact with the tip surface of the dedicated jig 50, and the reinforcing portions do not come into contact with the tip surface of the dedicated jig 50.

[0058] Furthermore, in the above embodiment, a configuration is adopted in which a first guide portion 112g1 and a second guide portion 112g2 are provided on the undersides of the first valve seat portion 112b and the second valve seat portion 112d, respectively. However, a configuration in which a guide portion is provided only on the underside of the second valve seat portion 112d, and no guide portion is provided on the underside of the first valve seat portion 112b, may also be adopted. Furthermore, in the above embodiment, a configuration in which multiple guide portions are provided at intervals in the circumferential direction is shown, but the number and arrangement of the guide portions are not limited to the example shown. Also, a configuration in which guide portions are provided around the entire circumference may also be adopted. [Explanation of symbols]

[0059] 1: Squeeze container 10, 10X: Container body 20: Cap 100:Spout 110: Nozzle 110X: Nozzle part 111: Torso 112: Valve body support part 112a: Mounting port 112b: 1st valve seat part 112c: Outlet 112d: 2nd valve seat part 112e: Connection part 112f: Reinforcement 112g1: First guide section 112g2: Second guide section 113: Male screw part 114: First flange part 115: Second flange part 116: Mouth 117: Opening and closing valve 118: Hinge part 120: Valve body 121: Shaft 122: Valve body 122a:Slit 123:Protrusion 50: Dedicated jig 51: Tip surface 52: Escape hole 60: Fixtures 61:Mating hole

Claims

1. a nozzle having a cylindrical body; a valve element support portion integrally provided on an inner wall surface of the body portion; a valve body supported by the valve body support portion; A spout comprising: The valve body is A shaft portion; a flange-shaped valve body portion integrally provided with the shaft portion; Equipped with The valve body support portion is a mounting port to which the shaft portion is attached; a first valve seat portion provided radially outward of the mounting port and concentric with the mounting port, the first valve seat portion having a seat surface of the valve main body portion; a pouring outlet that is provided concentrically with the attachment port and radially outward of the first valve seat portion, and that is opened and closed by the valve main body; a second valve seat portion provided radially outward of the spout and concentric with the attachment port, the second valve seat portion having a seat surface of the valve body portion; a connecting portion that connects the first valve seat portion and the second valve seat portion; a reinforcing portion that reinforces the connecting portion; In addition to providing A spout characterized in that at least the underside of the second valve seat portion is provided with a guide portion for positioning the valve body support portion by a special jig used when attaching the valve body to the valve body support portion, and the guide portion is configured to abut against the tip surface of the special jig regardless of the circumferential positional relationship of the special jig with respect to the nozzle.

2. The spout according to claim 1 , wherein the connecting portion is connected at only one point.

3. The spout according to claim 1 , wherein a plurality of the guide portions are provided at intervals in the circumferential direction.

4. 2. The spout according to claim 1, wherein the reinforcing portion is configured to abut against the tip surface of the dedicated jig when the valve body is attached to the valve body support portion.

5. The spout according to claim 1 , wherein the guide portion is also provided on the underside of the first valve seat portion.

6. The spout according to claim 5, characterized in that the outer peripheral surface of a first guide portion of the guide portion provided on the underside of the first valve seat portion and the outer peripheral surface of the first valve seat portion are located on the same circumference, and the inner peripheral surface of a second guide portion of the guide portion provided on the underside of the second valve seat portion and the inner peripheral surface of the second valve seat portion are located on the same circumference.

7. 7. The spout according to claim 6, wherein the lower surface of the guide portion is located on an imaginary plane formed by rotating the lower surface of the reinforcing portion around the central axis of the mounting opening.

8. The spout according to claim 1 , wherein the reinforcing portion has a thickness that decreases radially inward.

9. The spout according to claim 1 , wherein the reinforcing portion is connected to an inner wall surface of the body portion.

10. A method for producing a spout according to any one of claims 1 to 9, a step of abutting a tip surface of the dedicated jig against lower surfaces of the first valve seat portion and the second valve seat portion to position the valve element support portion; a step of inserting the stem portion into the mounting opening to mount the valve body to the valve body support portion in a state where the valve body support portion is positioned by the dedicated jig; A method for manufacturing a spout, comprising the steps of:

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