JP2010274956A - Tube container with pump - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tube container with a pump which includes a pump B which sucks up a liquid in a tube container body A and dispenses it from a dispensing opening 40 of a dispensing head 33 by moving vertically an operating member B2 fitted in the dispensing head 33 on the upper end of a stem 32 projecting from a cylinder B1 on the top part of the tube container body A, and in which the number of members can be reduced as much as possible, the width of projection of the pump from the tube container body can be decreased, and furthermore, when the stored liquid is decreased, there exists no possibility of generating deformation of the top part of the tube container body, and there exists no possibility of generating any inconvenience of deterioration of sealing properties at the connecting part between the tube container body and the pump accompanied with this, and which is excellent. <P>SOLUTION: To a cylindrical part 14 for connection standing on the peripheral edge of a window hole 12 opened on the top wall part 11 of the tube container body A, the upper outer peripheral part of the cylinder B1 is prevented from slipping out through uneven engaging means and liquid-tightly fitted, and the pump B is mounted on the tube container body A. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a tube container with a pump.

  A tube container in which a pump is attached to the tube container body has been proposed. (For example, see Patent Document 1)

  The tube container is formed by sealing one end of the tube container and integrally sealing one end of the tube container, and screwing the container body to the mouth / neck of the container body. The cap is fixed in a state where the cylinder is suspended in the container body, and a spout is projected at the upper end so as to be movable up and down.

Japanese Patent No. 3290301

  As described above, the conventional tube container with a pump is fixed by screwing the pump to the container body, and the number of members such as a screw cylinder is increased. inevitably portion projecting tubular container body above for attachment tends to be large, including neck.

  In consideration of this point, the present inventor has studied a method of attaching the pump to the tube container without using a screw cylinder, but the tube container body is generally flexible so as to be deformed due to a decrease in the stored liquid. Therefore, there is a possibility that the top portion of the liquid may be deformed when the amount of the stored liquid is reduced. If the top portion is deformed, there is a possibility that the sealing performance may be deteriorated even if the connecting portion of the pump and the tube container body is sealed.

  The present invention has been made in view of the above points, and can reduce the number of members as much as possible, can reduce the projecting width of the pump from the tube container body, and can further reduce the top portion of the tube container body when the stored liquid is reduced. Therefore, the present invention proposes an excellent tube container with a pump which does not cause the disadvantage that the sealing performance of the connecting portion between the tube container body and the pump is deteriorated.

  The first means is configured as follows. That is, the tube container body A whose lower end portion is closed in a flat shape and the operating member B2 having the discharge head 33 fitted on the upper end of the stem 32 protruding from the cylinder B1 are moved up and down. A tube container with a pump including a pump B configured to suck up the liquid in the tube container body A and discharge the liquid from the discharge port 40 of the discharge head 33, and the top wall portion 11 of the tube container body A The upper outer peripheral portion of the cylinder B1 is prevented from coming out via the concave-convex engaging means and is fluid-tightly fitted to the connecting cylindrical portion 14 erected on the periphery of the window hole 12 opened to the pump B. It was attached to the container body A.

  The second means is configured as follows. That is, in the first means, a deformation preventing means for preventing the deformation of the top portion of the tube container body A by providing at least a pair of deformation preventing cylinders on the top portion of the tube container body A is provided.

  The third means was configured as follows. That is, in either the first means or the second means, an outer cylinder is provided with a ring cap B3 fitted to the upper end of the cylinder B1, and fitted to the outer surface of the cylinder B1 of the ring cap B3. 52 and a hanging cylinder 54 suspended from the outer cylinder 52 via the flange portion 53 were fitted to the inner and outer surfaces of the connecting cylinder portion 14 in a liquid-tight manner through an uneven engagement means.

  The fourth means is configured as follows. That is, in any one of the first to third means, the at least one pair of deformation prevention cylinders is a plurality of deformation prevention cylinders that are concentrically arranged upright on the upper surface of the tube container body A. Configured.

  The fifth means is configured as follows. That is, in any one of the first to third means, the at least one pair of deformation prevention cylinders includes an external deformation prevention cylinder 16 erected on the upper surface of the tube container body A, and a ring cap B3. And an internal deformation prevention cylinder 58 fitted to the inner surface of the external deformation prevention cylinder 16 while standing on the outer peripheral edge of the flange 53 extending from the outer cylinder 52.

  The sixth means is configured as follows. That is, the external deformation preventing cylinder 16 is used in combination with the fitting cylinder 18 of the overcap C in either the fourth means or the fifth means.

  In the present invention, the upper outer peripheral portion of the cylinder B1 is prevented from being pulled out through the concave and convex engaging means with respect to the connecting cylindrical portion 14 standing on the periphery of the window hole 12 opened in the top wall portion 11 of the tube container body A. In addition, since the pump B is attached to the tube container body A, it is possible to reduce the number of members as much as possible, and it is sufficient that the connecting cylinder portion 14 is lower than the screw cylinder. An advantageous connection function can be obtained, and the projecting width of the pump B from the tube container body A can be reduced. Moreover, the strength of the top portion of the tube container body A can be increased by fitting the connecting cylinder portion 14 and the cylinder B1, and deformation of the top portion of the tube container body A can be prevented. Further, since the structure can be simplified, the manufacture is easy.

  When a deformation preventing means for preventing deformation of the top portion of the tube container body A is provided by erecting at least a pair of deformation prevention cylinders at the top portion of the tube container body A, the tube container body is It is possible to more reliably prevent the top portion from being deformed, and to reliably prevent the disadvantage that the sealing performance of the connecting portion between the tube container body A and the pump B is deteriorated.

  A ring cap B3 fitted to the upper end of the cylinder B1 is provided, and an outer cylinder 52 fitted to the outer surface of the cylinder B1 of the ring cap B3, and a hanging cylinder 54 suspended from the outer cylinder 52 via the flange 53. When the inner and outer surfaces of the connecting cylinder part 14 are liquid-tightly fitted via the concave and convex engaging means, a double seal between the outer cylinder 52 and the hanging cylinder 54 is possible. It is possible to improve the performance. Further, since the ring cap B3 itself contributes to prevention of deformation of the tube container body A, the sealing performance can be improved also from this point.

  When the at least one pair of deformation prevention cylinders is composed of a plurality of concentric deformation prevention cylinders standing on the upper surface of the tube container body A, it can be formed integrally with the tube container body A. It becomes easy.

  The at least one pair of deformation prevention cylinders stands on the outer peripheral edge portion of the external deformation prevention cylinder 16 standing on the upper surface of the tube container body A and the flange portion 53 extending from the outer cylinder 52 of the ring cap B3. In the case of the internal deformation preventing cylinder 58 fitted on the inner surface of the deformation preventing cylinder 16, a more effective deformation preventing effect can be obtained.

  When the external deformation prevention cylinder 16 is used together with the fitting cylinder 18 of the overcap C, in addition to the deformation prevention effect, there is an advantage that each deformation prevention cylinder can be efficiently applied to other functions.

It is a principal part longitudinal cross-sectional view of a tube container with a pump. (Example 1) It is a principal part longitudinal cross-sectional view of a tube container body. (Example 1) It is a longitudinal cross-sectional view of a state in which a part of an operation member is fitted to a cylinder. (Example 1) It is a half sectional view of a ring cap. (Example 1) It is a top view of a ring cap. (Example 1) It is a longitudinal cross-sectional view of a state in which a part of an operation member is fitted to a cylinder. (Example 1) It is a principal part longitudinal cross-sectional view of a tube container with a pump. (Example 2) It is a principal part longitudinal cross-sectional view of a tube container body. (Example 2) It is a half sectional view of a ring cap. (Example 2) It is a top view of a ring cap. (Example 2) It is a longitudinal cross-sectional view of a state in which a part of an operation member is fitted to a cylinder. (Example 2)

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 shows an example of a tube container 1 with a pump. The tube container 1 with a pump includes a tube container body A, a pump B, and an overcap C.

  The tube container body A is made of synthetic resin or the like. As shown in FIG. 2, the top wall portion 11 extends from the upper end edge of the peripheral wall portion 10, and a window hole 12 is formed in the center portion of the top wall portion 11. Has been established. At the periphery of the window hole 12, a connecting cylinder portion 14 is provided with a locking step portion 13 provided around the lower inner periphery, and from the upper surface of the top wall portion 11 outside the connecting cylinder portion 14 to the inside. The deformation preventing cylinder 15 and the external deformation preventing cylinder 16 are erected at a predetermined interval. The internal deformation prevention cylinder 15 also serves as the guide cylinder 17 of the discharge head 33, and the external deformation prevention cylinder 16 also serves as the fitting cylinder 18 of the overcap C. The lower end of the peripheral wall portion 10 is flattened after filling with the contents. Further, the deformation preventing cylinder is not limited to the case where a pair of the inside and the outside is provided, and three or more places may be provided concentrically.

  The pump B is formed of synthetic resin or the like, and includes a cylinder B1, an operation member B2, and a ring cap B3.

  The cylinder B1 has a cylindrical shape with upper and lower end openings, and a downward stepped portion 20 is formed on the upper outer periphery of the cylindrical wall as shown in FIG. A suction valve 21 is provided at the inner lower end. The suction valve 21 includes a poppet valve body 22 housed in the lower part of the suction valve 21 in a vertically movable manner, and a suction valve seat 23 on the inner bottom surface. The poppet valve body 22 has a rod shape with a large diameter at the bottom and a small diameter at the top, and a plurality of circumferentially projecting locking ribs 24 on the lower outer periphery of the large diameter portion. It is positioned between the projecting support ribs 25, and the upper part is fitted into a piston rod (described later) of the operating member B2 so as to be slidable up and down. Then, the vertical movement from the position where each locking rib 24 comes into contact with the lower surface of the coil spring s interposed between the upper surface of each support rib 25 and the lower surface of the actuating member B2 to the position where the lower surface presses against the suction valve seat 23. It is configured so that it can be pushed down when the actuating member B2 is lowered and pulled up when the actuating member B2 is raised.

  The actuating member B2 has an annular piston 30 fitted on the inner circumference of the cylinder B1 so as to be able to slide in a fluid-tight manner. The discharge head 33 is fitted to the lower end of the stem 32, and the discharge head 33 is fitted to the upper end of the stem 32. The discharge head 33 is always urged upward by the coil spring s, and is mounted so as to be movable up and down. A discharge valve 35 is formed by the discharge valve seat 34 and the annular piston 30 provided on the outer periphery of the piston rod 31. Further, the discharge head 33 hangs a vertical cylinder 36 fitted to the upper end of the stem 32 from the back surface of the top wall 37, and suspends a peripheral wall 38 from the peripheral edge of the top wall 37. The tip of a nozzle 39 having a base end communicating with the upper portion penetrates the peripheral wall 38 and protrudes forward, and a discharge port 40 is opened at the tip.

  As shown in FIGS. 4 and 5, the ring cap B3 has an outer cylinder 52 suspended from a flange 51 extending outward from the upper end edge of the inner cylinder 50, and a flange portion from the upper and lower intermediate portions of the outer cylinder 52. A hanging cylinder 54 is suspended via 53. Also, the flange 51 has a through hole 55 for the purpose of facilitating the fitting of the ring cap B3. An engaging protrusion 56 that engages with the engaging step 13 of the tube container body A is provided at the lower end of the outer periphery of the outer cylinder 52. .

  As shown in FIG. 6, a ring cap B3 is fitted to the upper end of the cylinder B1 with the poppet valve body 22, the coil spring s, the annular piston 30, the piston rod 31, and the stem 32 mounted in the cylinder B1. Are assembled from above the tube container body A. When the ring cap B3 is fitted into the cylinder B1, the engaging protrusion 56 on the inner surface of the outer cylinder 52 engages with the downward stepped portion 20 of the cylinder B1 to prevent upward slipping. Further, the upper surface of the outer periphery of the annular piston 30 is brought into contact with and locked to the lower surface of the inner cylinder 50 to define the upper limit of the operating member B2. Next, the discharge head 33 is fitted to the upper end of the stem 32, the overcap C is attached, and the tube container body A is fitted with a pump as shown in FIG.

  The case where the tube container 1 with a pump comprised as mentioned above is used is demonstrated. When the overcap C is removed from the state of FIG. 1 and the discharge head 33 is pressed and the operating member B2 is pushed down, the poppet valve body 22 is lowered, the suction valve 21 is closed, the inside of the cylinder B1 is pressurized, The discharge valve 35 is opened by raising the annular piston 30 relative to the piston rod 31, and the pressurized liquid passes through the piston rod 31 through the piston rod 31 and the stem 32 from the through hole of the piston rod 31 to the outside via the discharge port 40. Is discharged. Next, when the pressure of the discharge head 33 is released, the actuating member B2 is lifted by the action of the coil spring s, and accordingly, the annular piston 30 is relatively lowered and the discharge valve 35 is closed, and the poppet valve body 22 is closed by the piston rod 31. As the suction valve 21 is opened, the pressure in the cylinder B1 becomes negative, and the liquid in the tube container A is introduced into the cylinder B1. As the liquid is introduced into the cylinder B1, the shape of the peripheral wall 10 is deformed so that the volume of the tube container A is reduced.

  FIG. 7 shows another example. In the tube container body A in this example, as shown in FIG. 8, the top wall portion 11 extends from the upper end edge of the peripheral wall portion 10, and the central portion of the top wall portion 11 is formed. A window hole 12 is formed. At the periphery of the window hole 12, a connecting cylinder part 14 is provided with a locking step part 13 provided at the lower part of the inner periphery, and from the top surface of the top wall part 11 outside the connecting cylinder part 14. An external deformation prevention cylinder 16 that also serves as the fitting cylinder 18 of the overcap C is provided upright. The lower end of the peripheral wall portion 10 is flattened after filling with the contents.

  Further, as shown in FIGS. 9 and 10, the ring cap B3 in this example has an outer cylinder 52 suspended from a flange 51 extending outward from the upper end edge of the inner cylinder 50, and the outer cylinder 52. A flange portion 53 is extended from the upper and lower intermediate portions of the flange portion 53, and a hanging tube 54 is vertically suspended from the lower surface of the intermediate portion of the flange portion 53. Has been established. The inner deformation prevention cylinder 58 is fitted to the inner surface of the outer deformation prevention cylinder 16 and plays a role of preventing the deformation of the top portion of the tube container body A. In this case, the ring cap B3 also contributes to the same role. Also, the flange 51 has a through hole 55 for the purpose of facilitating the fitting of the ring cap B3. An engaging protrusion 56 that engages with the engaging step 13 of the tube container body A is provided at the lower end of the outer periphery of the outer cylinder 52. .

  Also in this case, as shown in FIG. 11, with the poppet valve body 22, the coil spring s, the annular piston 30, the piston rod 31, and the stem 32 mounted in the cylinder B1, the ring ring cap B3 is fitted to the upper end of the cylinder B1. The worn piece is assembled, and this is fitted from above the tube container body A. Next, the discharge head 33 is fitted on the upper end of the stem 32, the overcap C is fitted, and the tube container body A is fitted with the pump B as shown in FIG. Since other configurations are the same as those in FIG. 1, the same reference numerals are given and the description thereof is omitted. Further, the operation is substantially the same.

1 ... Tube container with pump A ... Tube container body
10 ... trunk part, 11 ... top wall part, 12 ... window hole, 13 ... locking step part, 14 ... cylindrical part for connection,
15 ... Internal deformation prevention cylinder, 16 ... External deformation prevention cylinder, 17 ... Guide cylinder, 18 ... Fitting cylinder B ... Pump
B1 ... Cylinder
20 ... downward step, 21 ... suction valve, 22 ... poppet valve body, 23 ... suction valve seat,
24 ... Locking rib, 25 ... Supporting rib, s ... Coil spring
B2 ... Actuating member
30 ... annular piston, 31 ... piston rod, 32 ... stem, 33 ... discharge head,
34 ... Discharge valve seat, 35 ... Discharge valve, 36 ... Vertical cylinder, 37 ... Top wall, 38 ... Circumferential wall, 39 ... Nozzle,
40 ... Discharge port
B3 ... Ring cap
50 ... Inner cylinder, 51 ... Flange, 52 ... Outer cylinder, 53 ... Flange, 54 ... Drooping cylinder, 55 ... Through hole,
56 ... engaging ridge, 57 ... engaging ridge, 58 ... internal deformation prevention cylinder C ... over cap

Claims (6)

  A tube container body A whose lower end portion is closed in a flat shape, and provided on the top of the tube container body A, and an operating member B2 having a discharge head 33 fitted on the upper end of a stem 32 protruding from the cylinder B1 is moved up and down. And a pump B configured to suck up the liquid in the tube container A and discharge it from the discharge port 40 of the discharge head 33, and open to the top wall 11 of the tube container A The upper outer peripheral portion of the cylinder B1 is prevented from slipping out through the concave and convex engaging means and is liquid-tightly fitted to the connecting cylindrical portion 14 standing on the periphery of the window hole 12, and the pump B is connected to the tube container body. A tube container with a pump, which is attached to A.   The tube container with a pump according to claim 1, wherein a deformation preventing means for preventing deformation of the top of the tube container body A is provided by standing at least a pair of deformation preventing cylinders at the top of the tube container body A.   A ring cap B3 fitted to the upper end of the cylinder B1 is provided, and an outer cylinder 52 fitted to the outer surface of the cylinder B1 of the ring cap B3, and a hanging cylinder 54 suspended from the outer cylinder 52 via the flange 53. The tube container with a pump according to any one of claims 1 and 2, wherein the tube container is fitted into the inner and outer surfaces of the connecting cylindrical portion 14 in a liquid-tight manner through an uneven engagement means.   The tube container with a pump according to any one of claims 1 to 3, wherein the at least one pair of deformation prevention cylinders includes a plurality of deformation prevention cylinders that are concentrically arranged upright on the upper surface of the tube container body A.   The at least one pair of deformation prevention cylinders stands on the outer peripheral edge portion of the external deformation prevention cylinder 16 standing on the upper surface of the tube container body A and the flange portion 53 extending from the outer cylinder 52 of the ring cap B3. The tube container with a pump according to any one of claims 1 to 3, which is an internal deformation prevention cylinder 58 fitted on the inner surface of the deformation prevention cylinder 16.   The tube container with a pump according to claim 4 or 5, wherein the external deformation preventing cylinder 16 is used in combination with the fitting cylinder 18 of the overcap C.

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