JP2015006671A - Stopper for container with pump - Google Patents

Abstract

PROBLEM TO BE SOLVED: To form a stopper easily in a simple shape, and to enable easy attachment/detachment without contact with a fluid discharge tube during attachment/detachment.SOLUTION: A stopper (10) for a container with a pump is used for the container with the pump for preventing downward movement of a head of the container with the pump, and includes a body part (12) formed into a cylindrical shape with locking parts (17) formed on both sides of a vertical slit groove (11). A pair of pinch parts (13a and 13b) protruded with a prescribed interval in a peripheral surface direction on the circumference of the body part (12) are formed. When the pinch parts (13a and 13b) are approximated to each other, the locking parts (17) are moved and mutually separated with a peripheral wall part (16) between both of the pinch parts (13a and 13b) as a fulcrum. Thus, width of the groove part (11) is widened, and the stopper (10) can be attached/detached easily.

Description

  The present invention relates to a detachable stopper that is used in a container with a pump that can take out contents by moving the head up and down, and prevents the head from moving downward when the head is pressed downward. . In particular, the present invention relates to a stopper for a container with a pump that can be easily formed with a simple shape and can be easily attached and detached with a small force.

  The above-mentioned stopper for a container with a pump (hereinafter may be simply referred to as a stopper) includes, for example, a container containing a fluid such as shampoo, rinse, milky lotion, cosmetic liquid or seasoning, and an opening of the container. It is used for the container with a pump provided with the detachable cap screwed by the part and the pump provided in the cap. The pump has a cylinder attached to the cap, a fluid discharge pipe provided through the cap from the top of the cylinder, and a head that moves up and down along the fluid discharge pipe to drive the pump. doing. The head is always biased to the upper limit position by a spring body provided on the cylinder.

  In the above-mentioned container with a pump, for example, when transporting or not in use, there is a possibility that the head is inadvertently moved down and the contents are discharged. In order to solve such problems, conventionally, a stopper that is detachably fitted to the fluid discharge pipe and is formed on a cylindrical body that surrounds the outer diameter of the fluid discharge pipe. There has been proposed a stopper provided with a vertical groove having a width smaller than the diameter and a bulging portion protruding from the opposite side of the vertical groove (see, for example, Patent Document 1).

  This stopper is gripped so that the bulging portion is pinched by the user's fingertip, and the locking portions on both sides of the vertical dividing groove are pressed against the fluid discharge pipe in a state where the head is at the upper limit position. The width of the split groove is expanded by the fluid discharge pipe, and the cylindrical body is attached to the fluid discharge pipe so as to grip the fluid discharge pipe from the periphery. As a result, even when the head is pressed downward, the cylindrical body is brought into contact with the lower end of the head and the upper end of the cap, thereby preventing the head from being moved downward. Similarly, when removing the stopper, the bulging part is grasped so as to be pinched with the fingertip of the user, and is pulled out so as to be pulled away from the fluid discharge pipe. , Removed from the fluid discharge tube.

Japanese Utility Model Publication No. 59-53873

  In the above-described conventional stopper, the stopper is attached to and detached from the fluid discharge pipe by pressing the engaging portions on both sides of the vertical groove against the fluid discharge pipe and making the width of the vertical groove wider than the outer diameter of the fluid discharge pipe. ing. The locking portion maintains the width of the longitudinal groove to be narrower than the outer diameter of the fluid discharge pipe by the elastic restoring force of the cylindrical body so that the stopper is not inadvertently removed from the fluid discharge pipe. . For this reason, in the stopper described above, the stopper must be attached and detached against the force to maintain the width of the longitudinal dividing groove by the force in the direction of pushing and pulling the fluid discharge pipe by pinching the bulging portion. I must.

  On the other hand, when removing the stopper from the fluid discharge pipe, the stopper should be pulled out from the fluid discharge pipe against the force that the locking portion tries to maintain the width of the longitudinal groove by pinching the bulging portion. In order to prevent the stopper from coming off from the fingertip due to this pulling force, it is necessary to firmly pinch the bulge.For example, there is a problem that it is not easy to remove the stopper for a person who cannot operate the fingertip. It was.

  Also, when attaching the stopper to the fluid discharge pipe, press the locking parts on both sides of the vertical groove against the fluid discharge pipe, and the vertical groove width against the force that the vertical groove tries to maintain its width. Needs to be wider than the outer diameter of the fluid discharge pipe. However, since the bulging part protrudes from one point of the cylindrical body on the opposite side of the longitudinal dividing groove, if the direction of pressing the bulging part deviates from the center of the fluid discharge pipe, the stopper is removed from the fluid discharge pipe. Rotate along the outer peripheral surface of the liquid and may not be attached to the fluid discharge pipe.

  The technical problem of the present invention is to solve the above problems, can be easily formed with a simple shape, can be easily attached and detached with a small force, and when attached, can reliably prevent the head from moving down. It is to provide a stopper for a container.

In order to solve the above-described problems, the present invention is described as follows, for example, based on FIGS. 1 to 4 showing an embodiment of the present invention.
That is, the present invention relates to a stopper for a container with a pump, and is used in a container with a pump (1) provided with a pump (4) driven by the vertical movement of the head (7). A stopper for a container with a pump, which is detachably attached to a fluid discharge pipe (6) connecting the head (7) and has a substantially cylindrical main body (12) for preventing the head (7) from moving downward, The main body portion (12) has a pair of locking portions (17) formed on both sides of a longitudinal groove (11) having a width smaller than the outer diameter of the fluid discharge pipe (6), and the main body portion (12 ) And a pair of knobs (13a, 13b) protruding outward with a predetermined interval in the circumferential direction, and when the knobs (13a, 13b) are close to each other, With the peripheral wall portion (16) between the knob portions (13a, 13b) as a fulcrum, the locking portions (17) move and are separated from each other.

  The above-mentioned stopper for a container with a pump (hereinafter sometimes simply referred to as a stopper) has a simple shape in which a pair of knob portions are formed on a cylindrical main body portion having a longitudinal groove. It can be easily formed by injection molding or the like. Further, when the knob portions are operated in the direction in which they are close to each other, the locking portions are separated from each other, so that the width of the longitudinal dividing groove is widened. That is, when the stopper is attached / detached, the width of the above-mentioned split groove is widened by pinching the pair of knobs close to each other with a fingertip, so that it is pushed and pulled with a smaller force than the conventional one. The stopper can be attached and detached just by itself.

  In particular, when attaching the stopper, it may be operated by pinching the knob portion as described above.For example, in a state where the locking portions on both sides of the longitudinal groove are pressed against the outer peripheral surface of the fluid discharge pipe, The stopper may be attached to the fluid discharge pipe by pressing the knob portion with, for example, a thumb. In this case, the position where the pair of knob portions protrudes has a predetermined interval in the circumferential direction of the main body portion, so that the force that presses the knob portion is dispersed through each knob portion, so that the stopper discharges the fluid. There is no risk of rotating along the outer peripheral surface of the tube, and the attachment can be made reliably and easily. Further, since the width of the vertical dividing groove of the stopper is smaller than the outer diameter of the fluid discharge pipe, the stopper attached to the fluid discharge pipe does not fall out of the fluid discharge pipe.

  The stopper is not limited to a specific shape as long as it is operated in a direction in which the pair of knobs are close to each other and can be attached to and detached from the fluid discharge pipe. For example, a protrusion is formed at the end of each knob. Then, when the knob portion is pinched, the protrusion is caught on the fingertip, which is preferable because the operability when attaching and detaching the stopper is improved.

  When the stopper is attached, the knob portion may be attached by pressing the knob portion with, for example, a thumb in a state where the pair of locking portions are pressed against the outer peripheral surface of the fluid discharge pipe. At this time, for example, if a guide portion protruding outward is formed in each of the locking portions, the fluid discharge pipe is vertically divided by the guide portion when the locking portion is pressed against the outer peripheral surface of the fluid discharge pipe. It is preferable that the guide is smoothly guided into the groove, and the vertical split groove can be easily widened with the fluid discharge pipe, and the operability when the stopper is attached is further improved.

  The stopper is formed with a pair of knob portions protruding from the outer peripheral surface of the main body portion with a predetermined interval in the circumferential direction, the knob portions being close to each other, and the pair of locking portions being separated from each other. Any configuration may be used, and the configuration is not limited to a specific shape. However, for example, if the distance between one knob part and the other knob part is increased as the distance from the main body part increases, the movable distance of the knob part increases and the width of the groove part can be further increased. preferable.

  The stopper is not limited to a specific material as long as the peripheral wall portion serving as the fulcrum has elasticity, and may be formed from, for example, a resin, a metal, or a combination thereof. good. However, when it is formed of a resin, it is preferable that a stopper can be easily formed by using a processing method such as injection molding. In particular, polyolefin resins such as polypropylene and polyethylene, polyamide resins and the like are preferably used as the material. Further, by using polypropylene as the material, it is possible to obtain suitable elasticity required for the stopper of the present invention, and more preferable. .

  The knob part is not limited to a specific interval as long as it protrudes from the outer peripheral surface of the main body part with a predetermined interval in the circumferential direction. For example, each knob part is connected to the center of the main body part. When the central angle formed by the imaginary line is within a range of 10 ° to 100 °, the knob portions are brought close to each other, and the width of the vertical dividing groove is favorably widened.

  The stopper is not limited to a specific shape as long as the knob part protrudes from the outer peripheral surface of the main body part.For example, the imaginary line connecting the ends of the knob parts is more than the fulcrum. It may be formed so as to be located on the outer side, and in this case, the width of the vertical groove is preferably widened by the force in the direction of pinching the knob.

  Since the stopper used for the pump-equipped container of the present invention is configured and operates as described above, the following effects can be obtained.

(1) Since it has a simple shape in which a pair of knob portions are formed on a cylindrical main body portion having a longitudinal dividing groove, it can be easily formed and can be implemented at low cost.
(2) By simply operating the knobs close to each other, the locking part can be moved using the peripheral wall portion between the knobs as a fulcrum, the width of the groove can be increased, and the stopper can be easily attached and detached. it can.
(3) Since the pair of knob portions has a predetermined interval in the circumferential direction of the main body portion, the stopper can be easily and surely attached to the fluid discharge pipe by pressing the knob portions with the fingertips.
(4) Since the longitudinal groove of the attached stopper is smaller in diameter than the outer diameter of the fluid discharge pipe, the stopper can be securely attached to the periphery of the fluid discharge pipe without falling off from the fluid discharge pipe. .

It is a partially cutaway side view of a container with a pump equipped with a stopper, showing an embodiment of the present invention. It is a perspective view which shows the stopper of embodiment. 3A and 3B are explanatory views for explaining attachment and detachment of the stopper, FIG. 3A is a plan view of the stopper in a mounted state, and FIG. 3B is a plan view of the stopper when being attached and detached. It is a top view of the stopper which shows the modification of embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
As shown in FIG. 1, the container (1) with a pump is formed in a container (2) containing fluids such as shampoo, rinse, cosmetic liquid and seasoning, and an upper end opening of the container (2). A removable cap (3) to be screwed and a pump (4) provided on the cap (3) are provided. The pump (4) includes a cylinder (4a) attached to the cap (3), a fluid suction pipe (5) connected to a lower portion of the cylinder (4a), and the cylinder passing through the cap (3). A fluid discharge pipe (6) connected to an upper part of (4a), a head (7) which is moved up and down along the fluid discharge pipe (6) and drives a piston in the cylinder (4a), and the head And a fluid discharge port (8) provided in (7). The fluid discharge pipe (6) is provided with a detachable stopper (10) between the head (7) and the cap (3).

  As shown in FIG. 2, the stopper (10) used in the container with a pump (1) includes a main body (12) formed in a substantially cylindrical shape, and the main body (12). A longitudinal groove (11) having a width smaller than the outer diameter of the fluid discharge pipe (6), a pair of locking portions (17) formed on both sides of the longitudinal groove (11), and the main body portion (12 ) And a pair of knob portions (13a, 13b) protruding at a predetermined interval in the circumferential direction. When the head (7) is pressed, the head (7) is prevented from moving downward by coming into contact with the lower end of the head (7) and the upper end of the cap (3). The predetermined interval between the pair of knobs (13a, 13b) is such that when the knobs (13a, 13b) are close to each other, the peripheral wall portion (16) between the knobs (13a, 13b) is a fulcrum. Further, the locking portion (17) is moved in a direction away from each other, and the width of the longitudinal groove (11) of the main body portion (12) is set to be widened.

  The stopper (10) has a height slightly smaller than the distance between the lower end of the head (7) and the upper end of the cap (3) when the head (7) is at the upper limit position. It is attached so as to be fitted onto the tube (6). When the head (7) is pressed downward, the stopper (10) comes into contact with the lower end of the head (7) and the upper end of the cap (3), so that the head (7) is slid downward. That is blocked. The outer diameter of the body (12) of the stopper (10) is usually equal to or smaller than the lower diameter of the head (7) and the outer diameter of the cap (3), but larger. It may be. The head (7) is always urged to the upper limit position by an elastic body (not shown) provided on the cylinder (4a).

  Guide portions (15) projecting outward are formed in the locking portions (17) formed on both sides of the vertical groove (11). Therefore, when the stopper (10) is attached to the fluid discharge pipe (6), the fluid discharge pipe (6) is smoothly guided into the vertical groove (11) by the guide portion (15). You can pass through (11).

  As shown in FIG. 2, a protrusion (14) that is long in the vertical direction is formed at the tip of each knob (13a, 13b). Therefore, when the stopper (10) is attached / detached, if the pair of knobs (13a, 13b) are pinched with the fingertips so that they are close to each other, the protrusion (14) is caught on each finger. Is improved. Each knob portion (13a, 13b) is formed such that the distance between one knob portion (13a) and the other knob portion (13b) increases as the distance from the main body portion (12) increases. For this reason, the movable distance of each knob | pick part (13a, 13b) is enlarged, and the width | variety of a vertical dividing groove (11) is easily expanded by using the surrounding wall part (16) of predetermined width as a fulcrum.

  The stopper (10) configured as described above is formed by injection molding using, for example, polypropylene resin as its material. For this reason, said main-body part has moderate elasticity. Hereinafter, a method for attaching and detaching the stopper (10) will be described.

  In the container (1) with a pump described below, when the head (7) is pressed downward and moved downward, the fluid stored in the cylinder (4a) passes through the fluid discharge pipe (6). It is discharged from the fluid discharge port (8). When the lowered head (7) returns to the upper limit position, fluid is sucked from the container (2) through the fluid suction pipe (5) by the pump (4). Stored in 4a).

  In the present embodiment, the stopper (10) is used in the pump-equipped container (1) operated as described above. When there is no load from the outside, the stopper (10) is in a state where the inner diameter of the main body (12) is substantially equal to the outer diameter of the fluid discharge pipe (6), as shown in FIG. The knob portions (13a, 13b) are in a state having a predetermined interval.

  When the stopper (10) is attached to the fluid discharge pipe (6), the knobs (13a, 13b) are pinched, and the knobs (13a, 13b) are held as shown in FIG. By being close to each other, the locking portion (17) moves away from each other with the peripheral wall portion (16) between the knob portions (13a, 13b) as a fulcrum, and the width of the longitudinal dividing groove (11) is reduced. Widened. Next, when the stopper (10) is fitted into the fluid discharge pipe (6) and the knob portions (13a, 13b) are released, the locking portion (17 ) Are close to each other, the width of the longitudinal dividing groove (11) is reduced, and the stopper (10) is locked by the locking portion (17) so as not to be detached from the fluid discharge pipe (6).

  When removing the stopper (10) from the fluid discharge pipe (6), the knobs (13a, 13b) are held, and as shown in FIG. 3 (b), the knobs (13a, 13b) By being close to each other, the locking portion (17) is separated from each other with the peripheral wall portion (16) as a fulcrum, and the width of the longitudinal dividing groove (11) is widened. The stopper (10) is removed from the fluid discharge pipe (6) by pulling it away from the fluid discharge pipe (6) with the knobs (13a, 13b) being pinched.

  The stopper used in the container with a pump described in the above embodiment is exemplified to embody the technical idea of the present invention, and the shape, material, size, processing method, application, etc. of each part are described above. The present invention is not limited to the embodiment described above, and various modifications can be made within the scope of the claims of the present invention.

  For example, in the above embodiment, the peripheral wall portion (16) between the knob portions (13a, 13b) serving as the fulcrum is formed by a part of the substantially cylindrical main body portion. However, in the present invention, it is sufficient that the peripheral wall portion has an elastic restoring force. For example, a metal spring member or the like can be disposed in this portion. Further, as in the modification shown in FIG. 4, for example, the peripheral wall portion (16) between the knob portions (13a, 13b) is formed in a bowl shape to improve elasticity and durability against repeated elastic deformation. May be raised.

In the above embodiment, the knob portion is formed at the same height as the main body portion. However, in the present invention, the height of the knob portion may be different from that of the main body portion.
Further, in the above embodiment, the protrusion is formed long and vertically at the end of the knob part. However, in the present invention, the protrusion may be formed on the knob part in a shape other than such a protrusion. Any shape that can be caught by a finger when pinched with the fingertip is acceptable. In the present invention, the protrusion may be omitted.

  In the above-described embodiment, when the stopper is attached and detached, both the knob portions are brought close to each other so that the above-mentioned split groove is wider than the outer diameter of the fluid discharge pipe. However, in the present invention, when the knob portions are brought close to each other, the vertical groove may be narrower than the outer diameter of the fluid discharge pipe. In this case, the vertical groove is formed by pushing and pulling the stopper. It is expanded by the fluid discharge pipe. At this time, since the vertical dividing grooves are widened when the knob portions are close to each other, the force for pushing and pulling the stopper is reduced, and the stopper can be easily attached and detached.

DESCRIPTION OF SYMBOLS 1 ... Container with pump 2 ... Container 3 ... Cap 4 ... Pump
4a… Cylinder 6… Fluid discharge pipe 7… Head
10… Stopper
11… Vertical groove
12… Body
13a, 13b ... Knob
14… Projection
15… Guide section
16… Peripheral wall (peripheral wall part)
17… Locking part

Claims (3)

Used in a pump-equipped container (1) having a pump (4) driven by vertical movement of the head (7), and connected to the fluid discharge pipe (6) connecting the head (7) and the pump (4). A stopper for a container with a pump comprising a substantially cylindrical main body (12) which is detachably attached and prevents the head (7) from moving downward,
Each latching part (17) which forms the vertical dividing groove (11) of width smaller than the outer diameter of the said fluid discharge pipe (6) in the said main-body part (12), The outer peripheral surface of the said main-body part (12) And a pair of knob portions (13a, 13b) projecting outward with a predetermined interval in the circumferential direction, and when the knob portions (13a, 13b) are close to each other, both knob portions A stopper for a container with a pump, characterized in that the locking portions (17) move and are separated from each other with a peripheral wall portion (16) between (13a, 13b) as a fulcrum.   The stopper for a container with a pump according to claim 1, wherein the peripheral wall portion (16) serving as the fulcrum has an elastic restoring force.   The stopper for a container with a pump according to claim 2, wherein the peripheral wall portion (16) serving as the fulcrum is formed in a pleat shape.

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