JP2013095451A - Foam discharge container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a foam discharge container with which there is no risk of removing and losing a valve element of a discharge valve even when a discharge head is removed by shock or mischief and further, which can be manufactured without increasing the number of members.SOLUTION: The foam discharge container includes a cylinder member B and an operation member C. In the cylinder member B, an air cylinder 20 and a liquid cylinder 21 are provided successively in a vertical direction. In the operation member C, a liquid piston C1 is projected from a stem C2 including a valve element 36, an air piston C3 is cooperated to an upper part of the outer circumference of the stem, and a discharge head C5 is fitted to an upper end of the stem and mounted in a vertically movable manner while being energized upward. The operation member C is operated vertically to join a liquid and air to be foamed via a foaming member 62 and discharged from a discharge port of the discharge head. A connecting member C4 is provided, the proximal end part of which is fitted inside and outside of an upper end of the stem C2 and with which the foaming member 62 is fitted into a support tube 61 rising upward. The discharge head C5 is fitted to the support tube and a strength of fitting the connecting member to the stem is made greater than a strength of fitting of the discharge head to the connecting member.

Description

  The present invention relates to a foam dispenser, and more particularly, to a foam dispenser in which there is no risk of detachment loss of a valve body constituting a discharge valve in a stem even when a discharge head is detached.

  As a foam discharger, a cylinder member in which a large-diameter air cylinder and a small-diameter liquid cylinder are connected concentrically up and down, and a liquid piston sliding inside the liquid cylinder project from the lower part of the outer periphery of the stem. A pneumatic piston that slides in the pneumatic cylinder is linked to the upper part of the outer periphery of the stem, and an operating member mounted on the upper end of the stem so as to be movable up and down in an upward biased state. A configuration is known in which the liquid in the liquid cylinder and the air in the air cylinder are merged by vertical movement to be bubbled through a foaming member and discharged from the discharge port of the discharge head. (For example, see Patent Document 1)

  In the foam discharge device described in Patent Document 1, a discharge valve provided with a ball-shaped valve body is provided in the upper portion of the stem, and the vertical cylinder of the discharge head is fitted to the outer periphery of the upper end portion of the stem, and the foaming member Is fitted and fixed in a cylindrical member fitted from the inside of the vertical cylinder directly above the stem to the upper end of the stem. The foaming member is configured by fitting a pair of cylinders with a mesh stretched on one end face into the cylinder member.

JP 2009-202122 A

  In this type of conventional bubble ejector, the fitting strength is increased and the ejection head is firmly fitted to the stem so that the ejection head is not easily detached. There was also a risk of losing. In this case, in this type of conventional foam discharger, the discharge head, the cylindrical member, and the foaming member are all removed, and the valve body of the discharge valve provided in the upper part of the stem may be ejected. Since the protruding valve body is generally small in diameter, there is a high risk of loss. In addition, there is a risk that the ejection head is removed due to mischief, and in that case, there is a risk that the valve body may be detached and lost due to an impact of excessive ejection of the ejection head.

  The present invention has been made in view of the above points, and even when the discharge head is detached due to impact or mischief, there is no risk that the valve body of the discharge valve in the upper part of the stem will be detached and increase the number of members. The present invention proposes a foam dispenser that can be manufactured without doing so.

The first means is configured as follows. That is,
The upper end is fixed to the mounting cap A fitted to the outer periphery of the mouth and neck portion 101 of the container body 100 and hangs down in the container body 100, and the large-diameter air cylinder 20 and the small-diameter liquid cylinder 21 are concentrically up and down. A cylinder member B formed continuously in a shape;
The liquid piston C1 that slides in the liquid cylinder 21 protrudes from the lower part of the outer periphery of the stem C2 provided with the discharge valve 37, and the air piston C3 that slides in the air cylinder 20 is formed in the upper part of the outer periphery of the stem C2. And an operating member C that is fitted to the upper end of the stem C2 so as to be movable up and down in an upward biased state.
The discharge valve 37 is configured by placing a separate valve body 36 on a valve seat 35 for a discharge valve protruding from the upper part in the stem C2,
Bubbles configured such that the liquid in the liquid cylinder 21 and the air in the air cylinder 20 are merged by the vertical movement of the operation member C to be bubbled through the foaming member 62 and discharged from the discharge port of the discharge head C5. A dispenser,
A connecting member C4 is provided in which a foaming member 62 is fitted in a support cylinder 61 which is erected upward by fitting a base end portion inside and outside the upper end of the stem C2, and a discharge head C5 is fitted in the support cylinder 61, The fitting strength of the connecting member C4 with respect to C2 is configured to be greater than the fitting strength of the ejection head C5 with respect to the connecting member C4.

The second means is configured as follows. That is, in the first means,
The actuating member C is fitted with a fitting cylinder 55 having an annular recess 58 formed in the inner periphery of the lower end thereof on the upper end of the outer periphery of the stem C2, and the stem via a flange 56 extending inward from the upper end of the fitting cylinder 55. A connecting member C4 in which an inner cylinder 57 fitted to the upper end of the inner periphery of C2 is suspended and a support cylinder 61 is raised on a flange 56;
An air discharge valve 49 is configured by the lower end portion and the valve seat 39 for the air discharge valve projecting from the outer periphery of the stem C2, and the upper end portion is slidably fitted to the outer peripheral surface of the annular recess 58 so An air piston C3 having a cylindrical valve portion 45 fitted in a movable manner and having a sliding portion 47 that slides on the air cylinder 20 via a partition wall 46 protruding from the outer surface of the cylindrical valve portion 45. When,
A foaming member 62 in which a mesh 62a is stretched on an end surface of a cylinder 62b fitted in the support cylinder 61;
An ejection head C5 having a base end opened at the upper part of a vertical cylinder 70 with a lower part fitted to the outer periphery of the support cylinder 61, and a nozzle 74 extended;
Between the stem C2 and the tubular valve portion 45, between the stem C2 and the fitting cylinder 55, between the stem C2 and the flange 56, and between the stem C2 and the inner cylinder 57, from within the air cylinder 20 into the stem C2. An air supply path p that communicates was provided.

The third means was configured as follows. That is, in either the first means or the second means,
A spacer E including a fitting portion 85 detachably fitted to the outer periphery of the guide cylinder 12 standing on the top wall 11 of the mounting cap is provided, and a vertical wall portion 73 that abuts the lower surface on the upper surface of the fitting portion 85 is discharged. It was suspended from the back of the top wall 11 of the head.

  According to the present invention, the connecting member C4 is provided in which the foaming member 62 is fitted in the support cylinder 61 that is erected upward by fitting the base end portion inside and outside the upper end of the stem C2, and the discharge cylinder C5 is provided in the support cylinder 61. Since the fitting strength of the connecting member C4 with respect to the stem C2 is greater than the fitting strength of the discharging head C5 with respect to the connecting member C4, the discharging head C5 may come off due to an impact or the like. Even if the ejection head C5 is removed due to mischief or the like, the connecting member C4 stops at the upper end of the stem C2 and only the ejection head C5 is removed, and the foaming member 62 in the connecting member C4 is the same. Therefore, the valve body 36 of the discharge valve 37 is not exposed, the valve body 36 does not pop out when the discharge head C5 is detached, and the possibility of the valve body 36 being lost can be prevented. In addition, there is an advantage that it can be manufactured without increasing the number of members as compared with the conventional product.

  When configured as the second means, there are advantages that the above-described effects are obtained and that the mutual assembling operation can be easily performed, and that each member can be assembled in a compact and efficient manner.

  A spacer E including a fitting portion 85 detachably fitted to the outer periphery of the guide cylinder 12 standing on the top wall 11 of the mounting cap is provided, and a vertical wall portion 73 that abuts the lower surface on the upper surface of the fitting portion 85 is discharged. In the case of suspending from the back surface of the top wall 11 of the head, it is possible to surely prevent the operating member C from being pushed down when not in use.

It is a longitudinal cross-sectional view of a foam discharger. (First embodiment)

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

  FIG. 1 shows a first embodiment of the foam dispenser of the present invention. The foam discharger 1 includes a mounting cap, a cylinder member B, an operation member C, a poppet valve body D, and a spacer E.

  The mounting cap is for fixing the foam discharger 1 to the container body 100, and is a window hole through which the operating member C penetrates from the upper end edge of the peripheral wall 10 fitted to the outer periphery of the mouth neck portion 101 of the container body 100. A top wall 11 is opened, and a guide cylinder 12 is erected upward from the periphery of the window hole.

  In the cylinder member B, a small-diameter liquid cylinder 21 extends concentrically below a large-diameter air cylinder 20 whose upper end is fixedly mounted on the outer periphery of the mounting cap. The liquid cylinder 21 is connected to the inner peripheral edge of the bottom wall portion of the air cylinder 20 with the upper edge of the peripheral wall portion hanging downward, and extends from the lower end edge of the peripheral wall portion to a tapered bottom wall portion that opens at the center. The upper surface of the bottom wall portion is configured as a valve seat 22 for the suction valve. Further, a pipe fitting cylinder 23 is integrally suspended from the central opening edge of the bottom wall portion, and the upper end of the pipe 24 for suction is fitted into the pipe fitting cylinder 23 and the lower end thereof is suspended from the lower end portion in the container body 100. I am letting. Further, a plurality of locking ribs 25 in the circumferential direction are projected from the bottom wall portion outer edge portion of the liquid cylinder 21 to the lower end portion of the peripheral wall portion. An upward stepped portion is provided at an upper and lower intermediate portion of each locking rib 25.

  The actuating member C is assembled to the cylinder member B so as to be vertically movable in an upward biased state. The actuating member C includes a liquid piston C1, a stem C2, an air piston C3, a connecting member C4, and a discharge head C5. It has.

  The liquid piston C1 has an upper and lower skirt-shaped sliding portion 31 projecting outward from the outer periphery of the lower end of the fitting cylinder portion 30 fitted to the lower portion of the stem C2, and the sliding portion 31 is connected to the inner periphery of the liquid cylinder 21. Are fitted in a liquid-tight slidable manner. Further, the upper end portion of the fitting cylinder portion 30 forms a valve seat 32 for a check valve in the form of a ridge at an intermediate portion in the vertical direction in the stem C2. A coil spring s is interposed between the lower surface of the fitting cylinder portion 30 of the liquid piston C1 and the upward step portion of each locking rib 25 to constantly urge the operating member C upward.

  The stem C2 has a cylindrical shape with open upper and lower ends, and a liquid piston C1 that slides on the liquid cylinder 21 protrudes from the outer periphery of the lower portion, and an air piston C3 that slides in the air cylinder 20 has an outer periphery. In cooperation with the upper part, the liquid cylinder 21 and the air cylinder 20 are mounted so as to move up and down. A valve seat 35 for a discharge valve is formed in the upper part of the stem C2, and a discharge valve 37 is formed with a separate ball-shaped valve body 36 placed on the valve seat 35. A plurality of circumferential ridges 38 project in the circumferential direction from the lower surface of the valve seat 35 to the position directly above the check valve seat 32. Further, a valve seat 39 for an air discharge valve projecting in a flange shape is projectingly provided in the middle portion of the outer surface in the vertical direction, and a plurality of longitudinal ridges 40 in the circumferential direction are projectingly provided on the outer periphery of the cylinder wall. ing. The discharge valve 37 according to the present invention is intended to be constructed by placing a separate valve body 36 on a valve seat 35 for a discharge valve protruding from the upper part of the stem C2. 36 may have a general ball shape, or may have another shape such as a spindle shape, and may have the above-described configuration.

  The air piston C3 has an inner peripheral cylindrical valve portion 45 fitted to the outer periphery of the stem C2 so as to be able to move up and down with a small width, and the air piston C3 has a stepped partition wall 46 extending from the outer periphery of the cylindrical valve portion 45. An upper and lower skirt-shaped sliding portion 47 is fitted to the inner circumference of the cylinder 20 for fluid-tight sliding. The cylindrical valve portion 45 is fitted to the outer surface of the vertical protrusion 40 on the outer periphery of the stem C2 so as to be movable up and down. In addition, the stepped partition wall 46 of the air cylinder 20 is provided with an outside air introduction valve 48 for introducing outside air. The outside air introduction valve 48 is opened due to the negative pressure in the air cylinder 20 when the lowered operating member C rises, and introduces outside air.

  Further, as will be described later, a fitting cylinder 55 of a connecting member C4 in which an annular recess 58 is provided in the lower end of the inner periphery is fitted to the upper end of the outer periphery of the stem C2, and the cylindrical valve portion 45 is connected to the annular recess. Between the top surface of the air valve and the valve seat 39 for the air discharge valve so as to be movable up and down. The lower end of the cylindrical valve portion 45 and the valve seat 39 for the air discharge valve It is composed. An air passage that constitutes an air supply path p that communicates from the air discharge valve 49 into the annular recess 58 and communicates from the air cylinder 20 into the stem C2 between the stem C2 and the tubular valve portion 45. I have. The air discharge valve 49 is closed when the operating member C shown in FIG. 1 is pushed up to the uppermost position, and is opened when the operating member C is pushed down. It is configured so as to close when it is lifted.

  The connecting member C4 has a flange 56 extending inward from the upper end of the fitting cylinder 55 fitted to the upper end of the outer periphery of the stem C2, and is fitted to the upper end of the inner periphery of the stem C2 from the inner peripheral edge of the flange 56. The inner cylinder 57 is suspended, and a gas-liquid mixing chamber R is defined at a downstream position of the discharge valve 37 below the inner cylinder 57. An annular recess 58 is formed in the inner periphery of the lower end of the fitting cylinder 55, and the upper end edge of the tubular valve portion 45 of the air piston C3 is slid in an airtight and liquid tight manner on the outer peripheral surface of the annular recess 58. . Further, a plurality of restricting projections 60 for restricting the rising width of the valve body 36 are provided from the lower surface of the inner cylinder 57. Further, a support cylinder 61 is erected on the flange 56. A foaming member 62 is provided in the support cylinder 61. The foaming member 62 is configured by preparing a pair of cylindrical bodies 62b each having a mesh 62a stretched, and fitting them into the support cylinder 61 so that the mesh 62a is at the upper end and the lower end. In the illustrated example, a pair of cylinders are provided. However, it is possible to fit one cylinder with a mesh stretched thereon, or three or more cylinders, which can be selected as appropriate. .

  Then, the annular recess 58 passes between the stem C2 and the fitting cylinder 55, between the stem C2 and the flange 56, between the stem C2 and the inner cylinder 57, and communicates with the inside of the stem C2 below the connecting member C4. An air passage is provided, and is configured as an air supply passage p from the air cylinder 20 to the gas-liquid mixing chamber R through the air discharge valve 49 together with the air passage between the stem C2 and the tubular valve portion 45. doing.

  In the discharge head C5, a vertical cylinder 70 having a lower end fitted in an airtight / liquid-tight manner on the outer periphery of the support cylinder 61 of the connecting member C4 is suspended from the rear surface of the top plate 71. In addition, a vertically long inner wall 73 extending from the upper end of the guide tube 12 to the outer peripheral upper end of the guide tube 12 is provided between the vertical tube 70 and the outer wall 72. A base end is opened at the upper end of the vertical cylinder 70, a nozzle 74 projecting forward through the inner hanging wall portion 73 and the outer hanging wall portion 72 is extended, and a discharge port is opened at the tip thereof. ing. A reinforcing rib 75 is stretched between the upper end portion of the inner vertical wall portion 73 and the upper end portion of the vertical cylinder 70.

  The poppet valve body D is provided with a plurality of circumferentially extending locking projections 80 positioned between the locking ribs 25 of the liquid cylinder 21 on the outer surface of the lower end portion, and the stem C2 from the liquid cylinder 21 inside. It has a length that extends to the inner and lower parts, and is mounted so that it can move up and down from the position where the valve seat 22 for suction valve and the lower surface abut to the position where each locking projection 80 contacts the lower surface of the coil spring doing. The upper part of each locking projection 80 is formed with a lower portion as a large diameter portion and an upper portion as a small diameter portion, and a check valve body 81 that expands into a tapered cylindrical shape is formed at the upper end of the small diameter portion. A check valve 82 is formed by the valve body 81 and the valve seat 32 for the check valve. A suction valve 83 is constituted by the lower end portion of the poppet valve body D and the valve seat 22 for the suction valve.

  The spacer E is composed of an arcuate plate-like fitting portion 85 that is detachably fitted to the outer periphery of the guide cylinder 12 and a plate-like knob portion 86 that protrudes rearward from the rear surface of the fitting portion 85. . The upper surface of the fitting portion 85 of the mounted spacer E is in contact with the lower surface of the hanging wall portion 73 on the inner side of the ejection head C5 to prevent the operation member C from being pushed down. In mounting, the fitting portion 85 is forcibly fitted to the outer periphery of the guide tube 12 so that the fitting portion 85 is elastically opened.

  When the bubble discharger 1 removes the spacer E from the state shown in FIG. 1 and pushes down the discharge head C5, the air piston C3 rises relative to the stem C2 and the air discharge valve 49 opens to lower the air. The air in the air cylinder 20 is pressurized by the piston C3 and introduced into the gas-liquid mixing chamber R through the air supply path p. On the other hand, the liquid cylinder 21 is lowered and lowered until the poppet valve body D is brought into contact with the valve seat 22 for the suction valve, and the poppet valve body D is relatively lifted with respect to the stem C2 to check valve. 82 opens, the pressurized liquid in the liquid cylinder 21 is introduced into the gas-liquid mixing chamber R through the discharge valve 37, and the gas-liquid is mixed here. At this time, the poppet valve body D rises relative to the stem C2. The gas-liquid mixed in the gas-liquid mixing chamber R passes through the foaming member 62 and foams, and is discharged from the nozzle 74 of the discharge head C5 to the outside.

When the pressure of the discharge head C5 is released, the actuating member C is lifted by the biasing force of the coil spring s. At this time, the air piston C3 is lowered relative to the stem C2, and the air discharge valve 49 is closed. Due to the negative pressure in the cylinder 20, the outside air introduction valve 48 is opened and outside air is introduced into the air cylinder 20. On the other hand, the poppet valve body D rises due to the frictional force between the check valve 82 and each vertical protrusion 38 due to the rise of the stem C2, and the container body 100 is placed in the liquid cylinder 21 that is negatively opened by the suction valve 83 being opened. The liquid inside is introduced, and the discharge valve 37 is closed at that time. The poppet valve body D rises until its locking projection 80 comes into contact with the lower surface of the coil spring s. Thereafter, the check valve body 81 comes into contact with the valve seat 32 for the check valve with respect to the stem C2. Until it falls relatively.

  In the present invention, since the fitting strength of the connecting member C4 with respect to the stem C2 is configured to be greater than the fitting strength of the discharge head C5 with respect to the connecting member C4, when the discharging head C5 comes off, the connecting member C4 comes off. There is very little possibility that the connecting member C4 and the ejection head C5 will come off together. The fitting strength here indicates the strength of the connection between the two fittings. The difference in magnitude of the fitting strength in the present invention is basically that the connecting member C4 has a structure in which the base end portion is fitted inside and outside the upper end of the stem C2, and the discharge head C5 has a lower portion of the vertical cylinder 70. If the size of the fitting strength is specified in consideration of the area of the fitting portion, the mutual diameter of the fitting portion, etc. good.

1: Foam dispenser A: mounting cap 10 ... peripheral wall, 11 ... top wall, 12 ... guide cylinder B: cylinder member 20 ... air cylinder, 21 ... liquid cylinder, 22 ... valve seat for suction valve,
DESCRIPTION OF SYMBOLS 23 ... Pipe fitting cylinder, 24 ... Pipe for suction, 25 ... Locking rib C: Actuating member C1: Piston for liquid 30 ... Fitting cylinder part, 31 ... Sliding part, 32 ... Valve seat for check valve C2: Stem 35 ... Valve seat for discharge valve, 36 ... Valve body, 37 ... Discharge valve, 38 ... Vertical projection,
39 ... Valve seat for the air discharge valve, 40 ... Vertical projection,
C3: Piston 45 for air ... Cylindrical valve part, 46 ... Stepped partition, 47 ... Sliding part, 48 ... Outside air introduction valve,
49 ... Air discharge valve C4: Connecting member 55 ... Fitting cylinder, 56 ... Flange, 57 ... Inner cylinder, 58 ... Annular recess,
60 ... restriction projection, 61 ... support cylinder, 62 foaming member, 62a ... mesh, 62b ... cylinder C5: discharge head 70 ... vertical cylinder, 71 ... top plate, 72 ... outer vertical wall, 73 ... inner vertical wall Part, 74 ... nozzle,
75 ... Reinforcing rib D: Poppet valve body 80 ... Locking projection, 81 ... Check valve body, 82 ... Check valve, 83 ... Suction valve E: Spacer 85 ... Fitting part, 86 ... Knob part s: Coil spring p: Air supply path R: Gas-liquid mixing chamber 100: Container body 101.

Claims (3)

The upper end portion is fixed to the mounting cap (A) fitted to the outer periphery of the mouth / neck portion (101) of the container body (100) and suspended in the container body (100), and a large-diameter air cylinder (20) and A cylinder member (B) formed by connecting small-diameter liquid cylinders (21) vertically and concentrically;
The liquid piston (C1) that slides in the liquid cylinder (21) protrudes from the lower outer periphery of the stem (C2) having the discharge valve (37) and slides in the air cylinder (20). A pneumatic piston (C3) is linked to the upper outer periphery of the stem (C2), and a discharge head (C5) is fitted to the upper end of the stem (C2), and the operating member (C) is mounted so as to be vertically movable in an upward biased state. And
The discharge valve (37) is configured by mounting a separate valve body (36) on a valve seat (35) for the discharge valve protruding from the upper part in the stem (C2),
The liquid in the liquid cylinder (21) and the air in the air cylinder (20) are merged by the vertical movement of the actuating member (C) and foamed through the foaming member (62), and the discharge head (C5) A foam discharger configured to discharge from the discharge port of
The support cylinder (61) includes a connecting member (C4) in which a foaming member (62) is fitted in a support cylinder (61) which is erected upward by fitting a base end portion inside and outside the upper end of the stem (C2). The discharge head (C5) is fitted into the stem, and the fitting strength of the connecting member (C4) with respect to the stem (C2) is configured to be greater than the fitting strength of the discharge head (C5) with respect to the connecting member (C4).
A foam dispenser characterized by that. The actuating member (C) fits the fitting cylinder (55) in which the annular recess (58) is provided in the inner periphery of the lower end part to the upper end of the outer periphery of the stem (C2), and is inward from the upper end of the fitting cylinder (55). An inner cylinder (57) fitted to the upper end of the inner periphery of the stem (C2) via a flange (56) extending to the flange (56), and a connecting member (a support cylinder (61) standing up on the flange (56)) C4)
The lower end and the valve seat (39) for the air discharge valve projecting on the outer periphery of the stem (C2) constitute an air discharge valve (49), and the upper end is fitted to the outer peripheral surface of the annular recess (58) so as to be slidable. A cylinder valve portion (45) fitted to the outer periphery of the stem (C2) so as to be movable up and down, and an air cylinder through a partition wall (46) protruding from the outer surface of the cylinder valve portion (45) An air piston (C3) having a sliding portion (47) sliding on (20);
A foaming member (62) in which a mesh (62a) is stretched on an end surface of a cylindrical body (62b) fitted in the support cylinder (61);
A discharge cylinder (C5) in which a nozzle (74) is extended from the upper end of a vertical cylinder (70) having a lower part fitted to the outer periphery of a support cylinder (61);
Between the stem (C2) and the tubular valve part (45), between the stem (C2) and the fitting cylinder (55), between the stem (C2) and the flange (56), between the stem (C2) and the inner cylinder ( 57), an air supply path p communicating from the air cylinder (20) into the stem (C2) is provided.
The foam dispenser according to claim 1. A spacer (E) including a fitting portion (85) detachably fitted to the outer periphery of the guide cylinder (12) standing on the top wall (11) of the mounting cap is provided, and is provided on the upper surface of the fitting portion (85). A hanging wall portion (73) that contacts the lower surface is suspended from the back surface of the top wall (11) of the ejection head.
The foam discharger according to claim 1 or 2.