JP2015174659A - Cock device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the required strength of a knob in a cock device opening and closing the mouth portion of a container for a liquid.SOLUTION: A nozzle part 20 is disposed at the outside surface 11 of the plug part 10 of a cock device 5 and a cock member 5b for opening and closing is rotatably disposed at the nozzle part 20. A knob 30 is extended in a crossing direction to the axis line Lof the nozzle part 20 from the cap part 23 of the cock member 5b. The knob 30 includes a short root part 31 projected from the peripheral side surface of the cap part 23 and a long knob part 32 connected to the tip of the root part 31. The extension direction aof the knob part 32 is inclined to a projection direction afrom the cap part 23 of the root part 31.

Description

  The present invention relates to a cock device that is provided in a liquid container and pours the content liquid from the mouth portion of the container or closes the mouth portion, and particularly relates to a cock device having a lever-like knob for opening and closing.

  For example, a bag-in-box is known as a container that collects liquids such as beverages, detergents, and chemicals and dispenses them as necessary (see Patent Document 1). The bag-in-box is a container in which a flexible resin inner bag is accommodated in a cardboard outer box, and is widely used for business use and home use because it is lightweight, strong and easy to discard. A mouth portion is provided at one location of the inner bag, and a cock device for opening and closing is attached to the mouth portion.

  As disclosed in Patent Document 1 and the like, this type of cock device includes a circular lid-like plug part, a nozzle part, and a cock member. A mouth plug is attached to the mouth of the inner bag to close the mouth. A nozzle portion is provided so as to follow the outer surface of the plug portion, and a communication hole is formed through the plug portion from the plug portion to the inside of the nozzle portion. A cock member is rotatably provided in the nozzle portion. A cap portion is provided at the end of the cock member. A lever-like knob extends from the cap portion. The knob includes a short root portion (short rod portion) protruding from the peripheral side surface of the cap portion, and a long knob portion (long rod portion) connected to the tip of the root portion. In Patent Document 1, the extending direction of the knob part is orthogonal to the root part, and the entire knob is L-shaped. That is, the angle formed by the knob portion and the root portion is 90 °. By pinching this knob and turning the cock member, the communication hole and thus the nozzle part can be opened and closed.

Japanese Patent No. 4021531

  In the cock device of the above-mentioned patent document 1, since the angle formed by the base part (short hook part) and the knob part (long hook part) of the knob is 90 °, the cock member is pinched by pinching the tip part of the knob part. When the opening / closing operation is performed by turning, a relatively large stress acts on the corner portion between the knob portion and the root portion. Therefore, it is necessary to increase the required strength of the knob.

In order to solve the above problems, the present invention is a cock device for opening and closing the mouth of a liquid container,
A plug part attached to the mouth part;
A nozzle portion provided so as to follow the axis along the outer surface of the plug portion;
A cock member provided in the nozzle portion so as to be rotatable around the axis, and opening and closing the nozzle portion by opening and closing a communication hole penetrating from the plug portion to the inside of the nozzle portion;
The cock member includes a cap portion provided at an end portion of the nozzle portion, and a knob extending from the cap portion so as to intersect the axis,
The knob includes a root portion protruding from a peripheral side surface of the cap portion, and a knob portion extending to the tip of the root portion and extending longer than the root portion;
The extending direction of the knob portion is oblique with respect to the protruding direction of the root portion from the cap portion.
According to this cock device, the degree of bending of the continuous portion between the knob portion and the root portion can be reduced (less than 90 °). Therefore, when the cock member is turned to open and close, the stress acting on the continuous portion between the knob portion and the root portion can be relaxed. Therefore, the required strength of the knob can be reduced.

  The angle formed by the projecting direction of the root portion and the extending direction of the knob portion is preferably 30 ° to 60 °, more preferably about 45 °. Thereby, the distance between the axis of the nozzle portion and the plug portion can be surely shortened compared with the case where the angle is set to about 90 °, and the knob portion in the closed position than the case where the angle is set to about 0 °. Can be made to be close enough to the spigot part and almost parallel.

  It is preferable that the root portion bends so as to gradually approach the extension direction of the knob portion as it goes to the knob portion. As a result, the root portion can be smoothly continued to the knob portion, the stress acting on the continuous portion between the knob portion and the root portion can be more reliably alleviated, and the required strength of the knob can be further reliably reduced.

  The root portion may extend linearly along a protruding direction from the cap portion, and the knob portion may extend at an oblique angle with respect to the root portion from a tip portion of the root portion. Accordingly, the length along the center line of the root portion can be shortened, the contour shape of the knob can be simplified, and the cock member can be easily formed.

  According to the present invention, when the cock member is turned open and closed, the stress acting on the continuous portion of the knob portion and the root portion can be relaxed, and the required strength of the knob can be reduced.

FIG. 1 shows a first embodiment of the present invention and is a perspective view of a bag-in-box provided with a cock device. FIG. 2 is an exploded perspective view of the cock device. FIG. 3 is a front view showing the cock device in a closed position by a solid line and an open position by a two-dot chain line. FIG. 4 is a plan view showing the cock device in a closed position. Fig.5 (a) is a longitudinal cross-sectional view which follows the VV line | wire of FIG. 3 which shows the said cock apparatus in the state of a closed position. FIG.5 (b) is a longitudinal cross-sectional view which shows the said cock apparatus in the state of an open position. FIG. 6 is a plan view showing the cock device according to the second embodiment of the present invention in a closed position.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 5 show a first embodiment of the present invention. As shown in FIG. 1, a bag-in-box 1 (container) includes an outer box 2 made of cardboard and an inner bag 3 made of flexible resin. An inner bag 3 is accommodated in the outer box 2. The inner bag 3 is filled with a liquid (content liquid) such as a beverage, a detergent, or a chemical solution. Here, drinking hot spring water is contained as the content liquid. The temperature at the time of filling this hot spring water is, for example, about 50 ° C. to 90 ° C., and preferably about 65 ° C. to 70 ° C. A substantially cylindrical mouth portion 4 made of a hard resin is provided on one side portion of the inner bag 3. A cock device 5 is joined to the mouth 4 by a stopper. A cock outlet 2 b is formed on one side of the outer box 2. When the bag-in-box 1 is used, the cock device 5 is projected outward from the cock outlet 2b.

  As shown in FIG. 2, the cock device 5 includes two members, a body member 5a and a cock member 5b. The body member 5a integrally includes the plug portion 10 and the outer cylinder 21. The material of the body member 5a is a hard resin such as polyethylene. The cock member 5b integrally includes an inner cylinder 22 and a knob 30. The material of the cock member 5b is a hard resin such as polypropylene or polystyrene. The outer cylinder 21 and the inner cylinder 22 constitute a nozzle portion 20. In other words, the cock device 5 includes the spigot part 10, the nozzle part 20, and the cock member 5b. The inner cylinder 22 serves as the element of the nozzle 20 and the element of the cock member 5b.

  As shown in FIGS. 2 and 3, the plug portion 10 has a circular lid shape. As shown in FIG. 1, the mouth plug portion 10 is attached to the mouth portion 4 with a stopper to close the mouth portion 4. As shown in FIGS. 2 and 3, a pair of left and right convex portions 14 and 15 are formed on the outer surface 11 of the plug portion 10.

As shown in FIG. 3, the nozzle portion 20 is provided at the center portion in the left-right direction of the plug portion 10. As described above, the nozzle portion 20 includes the outer cylinder 21 and the inner cylinder 22 and has a double cylinder shape. The outer cylinder 21 has a cylindrical shape (cylindrical shape) with both ends opened. The axis of the outer cylinder 21 and thus the axis L ₀ of the nozzle portion 20 are directed in the vertical direction along the outer surface 11 of the plug portion 10.

  As shown in FIG. 2, a substantially rectangular continuous tube portion 13 is formed so as to protrude from a substantially central portion of the outer surface 11 of the plug portion 10. The plug portion 10 and the peripheral side portion of the outer tube 21 are continuously connected to each other through the continuous tube portion 13.

  As shown in FIG. 5, a communication hole 13 a is formed inside the continuous cylinder portion 13. The communication hole 13 a penetrates from the plug portion 10 to the inner peripheral surface of the outer cylinder 21 and thus to the inside of the nozzle portion 20. An air hole 21e is formed at a position facing the communication hole 13a on the peripheral side portion of the outer cylinder 21 at a distance of 180 °.

  As shown in FIGS. 2 and 5, the inner cylinder 22 has a cylindrical shape (cylindrical shape) that is coaxial with the outer cylinder 21 and longer than the outer cylinder 21. An inner space of the inner cylinder 22 constitutes a nozzle hole 29. The upper end (one end) of the inner cylinder 22 and the nozzle hole 29 is closed, and the lower end (the other end) is opened. An opening / closing hole 22 a is formed in the peripheral side portion of the inner cylinder 22. The open / close hole 22 a penetrates from the outer peripheral surface of the inner cylinder 22 to the inner peripheral surface.

The inner cylinder 22, while being pressed into the outer cylinder 21, an open position about the axis L ₀ with respect to the outer tube 21 (two-dot chain lines and figures 3 5 (b)) and a closed position (of FIG. 3 It can rotate between the solid line and FIG. 5 (a)). When the outer peripheral surface of the inner cylinder 22 is in close contact with the inner peripheral surface of the outer cylinder 21, the space between the outer cylinder 21 and the inner cylinder 22 is sealed in a liquid-tight manner. A lower end portion of the inner cylinder 22 protrudes downward from the outer cylinder 21. The opening at the lower end of the inner cylinder 22 constitutes a discharge port 29 a of the nozzle hole 29.
Note that the opening at the lower end of the outer cylinder 21 may form the discharge port of the nozzle hole 29 by the outer cylinder 21 projecting downward from the inner cylinder 22.

  As shown in the two-dot chain line in FIG. 3 and FIG. 5B, when the inner cylinder 22 and thus the cock member 5b are in the open position, the open / close hole 22a coincides with the communication hole 13a. And communicate with each other through the opening / closing hole 22a. As a result, the nozzle portion 20 is opened, and the liquid in the bag-in-box 1 can be poured out from the discharge port 29a through the mouth portion 4, the communication hole 13a, the opening / closing hole 22a, and the nozzle hole 29 in this order.

  As shown in the solid line in FIG. 3 and FIG. 5A, when the inner cylinder 22 and thus the cock member 5b are in the closed position, the opening / closing hole 22a is displaced by 180 °, for example, in the circumferential direction of the nozzle portion 20 with respect to the communication hole 13a. Thus, the communication hole 13 a is closed by the peripheral wall of the inner cylinder 22. Accordingly, the communication hole 13a and the nozzle hole 29 are blocked and the nozzle portion 20 is closed. Therefore, the dispensing of the content liquid is stopped or prevented. At this time, liquid can be drained from the inside of the nozzle hole 29 by matching the opening / closing hole 22a with the air hole 21e.

  As shown in FIG. 3, the upper end portion of the inner cylinder 22 protrudes from the upper end portion of the outer cylinder 21, and the cap portion 23 is integrally provided there. The cap portion 23 has a substantially truncated cone shape, and its bottom portion has a larger diameter than the inner cylinder 22 and is approximately equal to the outer diameter of the outer cylinder 21. The bottom portion of the cap portion 23 is in contact with the upper end edge of the outer cylinder 21. The cap portion 23 closes the upper end portion of the inner cylinder 22 and thus the upper end portion of the nozzle hole 29 (the end portion opposite to the discharge port 29 a) and the upper end portion of the outer cylinder 21.

As shown in FIG. 2, the knob 30 is provided integrally with the cap portion 23. Knob 30 is turned to a lever shape that extends so as to cross from the cap portion 23 with the axis L _0. Specifically, as illustrated in FIG. 4, the knob 30 integrally includes a short root portion 31 and a long knob portion 32. The root portion 31 protrudes from the peripheral side portion of the cap portion 23. The protruding direction a ₃₁ of the root portion 31 from the cap portion 23 is substantially along the radial direction of 1 of the cap portion 23.

Here, as shown in FIG. 4, the protruding direction a ₃₁ refers to the tangential direction of the center line L ₃₁ of the root portion 31 in the continuous portion 30 a of the root portion 31 and the cap portion 23. The continuous portion 30 a is a portion on or near a virtual line obtained by virtually interpolating the outer peripheral surface of the cap portion 23 between the root portion 31 and the cap portion 23.

The root portion 31 is thicker and thicker as it is closer to the cap portion 23. Further, the root portion 31 is bent in an arc shape toward the tip (the side opposite to the cap portion 23). Accordingly, the center line L ₃₁ of the root portion 31 coincides with the protruding direction a ₃₁ in the continuous portion 30 a with the cap portion 23, and the arc is gradually separated from the protruding direction a ₃₁ toward the tip of the root portion 31. I'm drawing.

As shown in FIGS. 2 and 4, a knob portion 32 is connected to the tip of the root portion 31. The knob portion 32 extends longer than the root portion 31 and has a straight plate shape. Extending direction a ₃₂ of the knob portion 32 is perpendicular to the axis L ₀ of the nozzle portion 20 parallel to direction and is along the tangential direction of the nozzle portion 20. Center line _{L 32} of the handle portion 32 is coincident with the extending direction _{a 32.}

As shown in FIG. 4, the extending direction a ₃₂ of the knob portion 32 is inclined with respect to the protruding direction a ₃₁ of the root portion 31. That is, a relation between the extending direction _{a 32} in the projecting direction _{a 31} and knob portion 32 of the base portion 31, 0 ° angle alpha of less than ultra and 90 ° is formed (0 ° <α <90 ° ). The angle α is preferably about α = 30 ° to 60 °, more preferably about 45 °.

Further, the base portion 31, by bending so as to asymptotically in the extension direction _{a 32} of the knob 32 toward the handle portion 32, and a center line _{L 32} of the center line _{L 31} and the knob portion 32 of the base portion 31 The base portion 31 and the knob portion 32 are smoothly continuous at the continuous portion 30b.

When opening and closing the nozzle portion 20 rotates about the axis L ₀ by pinching the knob 30. As shown by a two-dot chain line in FIG. 3, when the knob 30 is directed to the right side portion of the outer side surface 11 of the plug portion 10, for example, the cock member 5 b is in the open position and the nozzle portion 20 is opened. As shown in the solid line in FIG. 3 and FIG. 4, when the knob 30 is directed so as to follow the left side portion of the outer surface 11 of the plug portion 10, for example, the cock member 5 b is in the closed position and the nozzle portion 20 is closed. .

As shown in FIGS. 3 and 4, one or a plurality (three in this case) of protrusions 33, 34, and 35 are formed on the back side surface of the knob portion 32 (the surface facing the plug portion 10 in the closed position). ing. Further, as shown in FIG. 2, a rib plate 36 is formed between the front side surface of the knob 30 (the surface facing the front side in the closed position) and the cap portion 23. Rib plates 36 is adapted to plate-shaped outline rectangle orthogonal to the axis L _0. The rib plate 36 is integrally connected to the knob 30 and the cap portion 23.

  Although detailed illustration is omitted, when the cock member 5b is set to the open position (the two-dot chain line in FIG. 3 and FIG. 5B), the edge of the rib plate 36 contacts the receiving convex portion 15. Accordingly, the cock member 5b is prevented from further turning in the opening direction, and the open position of the cock member 5b can be determined.

As shown in the solid line in FIG. 3 and FIG. 4, when the cock member 5 b is in the closed position, the protrusions 33, 34, and 35 abut against the outer surface 11 of the plug portion 10, and the receiving convex portion 14 is the knob portion 32. Abuts on the back side. Accordingly, the cock member 5b is prevented from further turning in the closing direction, and the closed position of the cock member 5b can be determined.
The protrusions 33, 34, and 35 are formed in a two-stage structure having a high protrusion and a low protrusion, and in the closed position, the high protrusion is brought into contact with the outer surface 11 of the plug part 10 and the low protrusion is received. You may make it hit the convex part 14. FIG.

As shown in FIG. 4, when the cock member 5 b is in the closed position, the protruding direction a ₃₁ of the root portion ₃₁ is inclined with respect to the outer surface 11 of the plug portion 10, and the extending direction a ₃₂ of the knob portion ₃₂ is The plug portion 10 is substantially parallel to the outer surface 11. Preferably, the protruding direction a ₃₁ of the root portion 31 in the closed position is 30 ° to 60 °, more preferably about 45 °, with respect to the outer surface 11 of the plug portion 10.

According to the cock device 5, the protrusion direction a ₃₁ of the root part 31 of the knob 30 and the extending direction a ₃₂ of the knob part 32 are inclined (0 ° <α <90 °), so the cock member 5 b is turned. When opening and closing, the stress acting on the continuous portion 30b between the knob portion 32 and the root portion 31 can be relaxed compared to α = 90 °. Therefore, the required strength of the knob can be reduced. In particular, since the angle α is preferably α = 30 ° to 60 °, more preferably α = about 45 °, the stress can be reliably relaxed and the required strength of the knob can be reliably reduced. Further, the required torque for the opening operation and the closing operation can be made comparable.
Also, as the root portion 31 approaches the knob portion 32, the base portion 31 can be smoothly continued to the knob portion 32 by bending so as to gradually approach the extension direction a ₃₂ of the knob portion 32. The stress acting on the continuous portion 30b with the base portion 31 can be more reliably alleviated, and the required strength of the knob can be more reliably reduced.
Moreover, since the base part 31 becomes thicker as it approaches the cap part 23, the strength of the continuous part 30a between the base part 31 and the cap part 23 can be increased.

Furthermore, as shown in FIG. 4, when the cock member 5 b is in the closed position, the protruding direction a ₃₁ of the root portion 31 is inclined with respect to the outer surface 11 of the plug portion 10, and therefore when orthogonal (α = 90). °) than can shorten the distance D between the outer surface 11 of the axial line L ₀ and the plugging portion 10 of the nozzle portion 20. Therefore, the cock device 5 can be made compact.
Particularly, by setting the angle α to preferably α = 30 ° to 60 °, more preferably α = about 45 °, the distance D can be reliably shortened compared to the case where α = about 90 °, and the cock device 5 can be made compact. In addition, the knob portion 32 can be made to be sufficiently close to the outer surface 11 of the plug portion 10 in parallel in the closed position as compared with the case where α = 0 °. Furthermore, the protrusion amount of the receiving convex portion 14 and the projections 33, 34, and 35 for determining the closed position can be reduced.

Next, another embodiment of the present invention will be described. In the following embodiments, the same reference numerals are attached to the drawings for the same configurations as those already described, and the description thereof is omitted.
FIG. 6 shows a second embodiment of the present invention. In the second embodiment, the base portion 31 of the knob 30, and extends linearly along the cap portion 23 in a protruding direction a _31. Therefore, the center line L ₃₁ of the root portion 31 coincides with the protruding direction a ₃₁ over the entire length of the root portion 31. The protruding direction a ₃₁ and the center line L ₃₁ are along one radial direction of the nozzle portion 20. The thickness of the root portion 31 is substantially constant over the entire length.

  A knob portion 32 extends at an oblique angle α with respect to the root portion 31 from the tip portion of the root portion 31. That is, the knob 30 is bent at an angle α at a continuous portion 30 b between the root portion 31 and the knob portion 32. The angle α is 0 ° <α <90 °, preferably α = about 30 ° to 60 °, and more preferably α = 45 °.

According to the cock apparatus 5 in the second embodiment, by making the base portion 31 in a straight line can be shorter than the length along the center line L ₃₁ of the base portion 31 in an arc shape. Further, since the contour shape of the root portion 31 is simpler than the arc shape, the cock member 5b can be easily formed.

The present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.
For example, the angle alpha of the protruding direction _{a 31} extending directions _{a 32} and the root portion 31 of the handle portion 32, alpha = 0 ° may be less than ultra to 30 ° or α = 60 ° ~90 °.
Also in the second embodiment, the thickness of the root portion 31 may be gradually increased toward the cap portion 23.
The cock device according to the present invention can be applied to a liquid container other than a bag-in-box. The cock device does not necessarily have to be attached to a flexible bag, and may be attached to a box such as cardboard or other container body having shape retention or self-supporting property.

  The present invention can be used, for example, as a cock for a bag-in-box.

α angle a ₃₁ protruding direction a ₃₂ extending direction L ₀ axis 1 bag-in-box (container)
4 mouth part 5 cock device 5b cock member 10 stopper part 11 outer surface 13a communication hole 20 nozzle part 23 cap part 30 knob 31 root part 32 knob part

Claims (4)

A cock device for opening and closing the mouth of the liquid container,
A plug part attached to the mouth part;
A nozzle portion provided so as to follow the axis along the outer surface of the plug portion;
A cock member provided in the nozzle portion so as to be rotatable around the axis, and opening and closing the nozzle portion by opening and closing a communication hole penetrating from the plug portion to the inside of the nozzle portion;
The cock member includes a cap portion provided at an end portion of the nozzle portion, and a knob extending from the cap portion so as to intersect the axis,
The knob includes a root portion protruding from a peripheral side surface of the cap portion, and a knob portion extending to the tip of the root portion and extending longer than the root portion;
The cock device characterized in that an extending direction of the knob portion is oblique with respect to a protruding direction of the base portion from the cap portion.   2. The cock device according to claim 1, wherein an angle formed between a protruding direction of the root portion and an extending direction of the knob portion is 30 ° to 60 °.   The cock device according to claim 1 or 2, wherein the root portion is bent so as to gradually approach the extending direction of the knob portion as it goes toward the knob portion.   The root portion extends linearly along a protruding direction from the cap portion, and the knob portion extends at an oblique angle with respect to the root portion from a tip portion of the root portion. Item 3. The cock device according to item 1 or 2.

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