JP5850500B2 - Liquid ejector - Google Patents

Description

  The present invention relates to a liquid ejector, and more particularly, to a liquid ejector capable of refilling a liquid without contaminating the surroundings with a liquid adhered to a pump.

  As a liquid ejector, a device in which a pump is mounted on the mouth and neck of a container body is generally known. Various forms of these have been proposed, but in view of the current situation where the amount of waste cannot be fully treated, in recent years, efforts have been made to reduce the amount of waste as much as possible. Various liquid ejectors have been proposed in which only the liquid is refilled after using up (see, for example, Patent Document 1 and Patent Document 2).

  The former is a refilling container for a liquid dispensing container consisting of a dispenser and a container, and is a self-supporting container consisting of a trunk and a spout part. When the contents of the liquid dispensing container are no longer consumed, loosen the dispenser and the container screw and remove the dispenser. Remove the cap of the new refill container, insert the suction pipe of the dispenser into this container, set the dispenser and the container, and then screw and unify the dispenser and the container into the container. Seal the contents. This completes the refilling of the contents, and the contents can be discharged by pressing the push-down head of the dispenser.

  The latter is a dispenser that has a pump that is pivotally mounted on the outer periphery of the bottle neck and attached to the outer periphery of the bottle, and has a pumping tube below it. When the new contents are transferred from the refilling container, the dispenser cap is first rotated by rotating the cap of the dispenser. It can be removed from the bottle neck and then the dispenser is pulled upward, and the hand-shaped locking part of the hook of the locking member can be brought to one side of the bottle mouth part and locked, The other side of the bottle mouth is greatly open.

JP-A-10-29655 JP 2000-289766 A

  Among the above conventional liquid ejectors, the former uses a cartridge-type container as a refill container, so it is convenient that the contents can be refilled very easily. There is a risk that the liquid adhering to the suction pipe of the pump may sag and get dirty around the time it is removed and attached to the refill container.

  Similarly, in the latter case, when the contents are transferred from the refill container, the refilling operation is easy, and it is not necessary to pull out the pump from the bottle, so that the contents outside the container are not soiled with the contents attached to the pump. Although it is excellent, when the liquid is refilled, there is a possibility that the adhering liquid of the locking part adheres to the mouth-neck part and inconveniences such as dripping down to the outside of the container. That is, when refilling, almost no storage liquid remains in the container, so it is not in direct contact with the locking part, but the locking part is immersed in the liquid in the initial state when the liquid is full. Therefore, even if the liquid is reduced, the adhered liquid remains on the locking portion. In particular, when the liquid has a high viscosity, the probability is high, and there is a high possibility that these adhering liquids adhere to the mouth and neck as described above.

  The present invention has been made in view of the above points, and proposes a liquid ejector that does not cause the container body and surroundings to be contaminated with liquid by refilling, and that can be easily refilled with liquid and is easy to handle. To do.

  The first means is configured as follows. That is, while the cylinder B1 is suspended inside the container body A, the mouth and neck part 12 is closed and the pump B is detachably attached to the container body A, and dip from the lower end of the cylinder B1 to the inner bottom part of the container body A. The liquid ejector is configured such that the tube B3 is suspended and the liquid in the container body A is ejected by the operation of the pump B, and the space between the mouth and neck portion 12 and the cylinder B1 is closed. 12 and a handling member C whose tip is slidably fitted on the outer periphery of the cylinder B1 is provided, and a locking surface f1 is provided on the lower end of the outer periphery of the dip tube B3 to remove the pump B. The front end portion of the handling member C slides on the outer periphery of the cylinder B1 and the outer periphery of the dip tube B3 and then comes into contact with the locking surface f1, and the handling member C can be removed by pushing up the locking surface f1.

  The second means is configured as follows. That is, in the first means, the handling member C extends the fitting cylinder 60b fitted to the inner peripheral upper part of the mouth neck portion 12 from the inner peripheral edge of the flange 60a fitted to the upper surface of the mouth neck portion 12. A mounting portion 60 provided; an elastic wall 63 gradually reducing in diameter downward from the lower end edge of the mounting portion 60; and a sliding cylinder 64 extending from the lower end edge of the elastic wall 63 and slidable on the outer periphery of the cylinder B1. ing.

  The third means was configured as follows. That is, in the second means, a through hole 65 for introducing outside air into the container body A is provided in the elastic wall 63 of the handling member C.

  The fourth means is configured as follows. That is, in any one of the first to third means, the pump B hangs the cylinder B1 inside the container body A by fitting the mounting cap B2 on the outer periphery of the mouth neck portion 12. In this state, the actuating member B4, which is detachably attached to the container body A, is fitted to the upper end of the stem 51 protruding from the inside of the cylinder B1 so as to be vertically movable in an upward biased state. In addition, it is configured such that the liquid in the container body A is discharged from the discharge port 54 of the discharge head 52 by the vertical movement of the operation member B4, and the operation member B4 can be locked in the depressed state.

  The fifth means is configured as follows. That is, in the fourth means, a mounting surface f2 capable of stable mounting is provided on the top of the discharge head 52, and the removed pump B can be mounted upside down while the operating member B4 is pushed down. Configured.

  According to the present invention, when refilling the liquid when the liquid in the container body A is used up, there is no possibility that the container body A and the surrounding area will be contaminated by the liquid, and the liquid can be easily refilled. That is, since the attached handling member C is removed together with the pump B after scraping off the liquid adhering to the cylinder B1 and the dip tube with respect to the lifting of the pump B, there is no possibility that the container A and the surrounding area will be contaminated with the adhering liquid. In addition, when the liquid is refilled, the mouth and neck portion 12 can secure the maximum size, the liquid can be easily refilled, and the removal operation is also easy.

  The handling member C includes a mounting portion 60 in which a fitting tube 60b fitted to the inner peripheral upper portion of the mouth neck portion 12 is extended from an inner peripheral edge of the flange 60a that contacts and fits the upper surface of the mouth neck portion 12, and a lower end of the mounting portion 60. When the elastic wall 63 is gradually reduced in diameter downward from the edge and the sliding cylinder 64 extending from the lower end edge of the elastic wall 63 and slidable on the outer periphery of the cylinder B1, the liquid is refilled. Further, the presence of the flange 60a makes it possible to easily attach the handling member C removed together with the pump B to a predetermined position of the mouth-and-neck portion 12, and the presence of the sliding cylinder 64 allows the outer periphery of the cylinder B1 to be installed. In addition, the attached liquid on the outer periphery of the dip tube B3 can be more reliably scraped off, and further, the presence of the sliding cylinder 64 makes it possible to push up the locking surface f1 more stably.

  When the elastic wall 63 of the handling member C is provided with a through hole 65 for introducing outside air into the container body A, it is possible to introduce the outside air into the container body A that is depressurized as the liquid is reduced. It is possible to prevent the body A from being deformed.

  When the mounting surface f2 capable of stable mounting is provided on the top of the discharge head 52 and the removed pump B can be placed upside down, the removed pump B is turned upside down without taking up a disturbing space. There is an advantage that the cylinder B1 and the dip tube B3 to which the liquid is attached can be inverted without being brought into contact with the surroundings.

It is a principal part notched side view of a liquid discharger. (First embodiment) It is a perspective view of a handling member. (First embodiment) It is a principal part perspective view of a pump upper end part. (First embodiment) It is explanatory drawing explaining an effect | action. (First embodiment) It is a principal part side view of a pump upper end part. (Second embodiment) It is a principal part notched side view of a liquid discharge container. (Third embodiment)

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

  1 to 4 show a first embodiment of the present invention, and the liquid ejector 1 includes a container body A, a pump B, and a handling member C. For convenience of explanation, the left side in FIG. 1 will be described as the front part, the right side as the rear part, the front side as the right part, and the back side as the left part.

  The container body A is formed of a synthetic resin or the like, and is configured such that the mouth-and-neck portion 12 is erected from the upper end of the cylindrical trunk portion 10 via the shoulder portion 11.

  Pump B is also formed of synthetic resin or the like. In the first embodiment, the pump B includes a cylinder B1, a mounting cap B2, a dip tube B3, and an operating member B4.

  The cylinder B <b> 1 is formed of a synthetic resin or the like, has a cylindrical shape with upper and lower ends opened, and a flange 21 protrudes from the outer peripheral upper portion of the cylindrical wall 20. Since the outer periphery of the cylinder wall 20 of the cylinder B1 slides the tip of the handling member C, it is preferable that the diameter change is small, and that the cylinder wall 20 is vertical. In particular, in the range in which the tip of the handling member C is slid, at least a change in the diameter is preferable. However, a slight change in the diameter can be accommodated by the elasticity of the handling member C. In the first embodiment, the outer periphery of the lower end portion of the cylindrical wall 20 is formed in the small diameter portion 20a, and a plurality of guide protrusions 22 in the circumferential direction are provided on the outer surface of the small diameter portion 20a. The guide protrusion 22 has a protrusion width that is the same as the outer surface of the large-diameter cylindrical wall 20 above the small-diameter portion 20a, and the outer surface of the lower end is formed as a curved curved surface for guidance. Accordingly, although there is a slight change in the diameter of the outer periphery of the cylinder wall 20, the presence of the guide cylinder portion 22 corrects the smoothness of the handling member C sliding. In addition, an outside air introduction hole 22 is formed at a predetermined upper portion of the cylindrical wall 20, and the outside and the inside of the container body A are connected to the cylindrical wall 20 inner peripheral surface and the later-described stem 51 outer peripheral surface of the operating member B4. And the outside air through holes 22. In addition, a suction valve (not shown) is provided at the lower end of the cylinder B1.

  The mounting cap B2 is configured to detachably mount the pump B to the container body A by being fitted to the outer periphery of the mouth-and-neck portion 12, and in the first embodiment, includes a joint cap B2a and a main cap B2b. ing.

  In the joint cap B2a, the fitting cylinder 30 fitted to the upper end of the outer periphery of the cylinder B1 is suspended from the annular top plate 31, and the lower part of the joint cap B2a is expanded from the outer peripheral edge of the top plate 31 through the flange portion 32a. The lower end of the outer peripheral wall 32 hangs down from the flange 21 of the cylinder B1. Further, a screw thread for screwing a discharge head 52 to be described later is provided on the outer periphery of the small diameter portion at the top of the outer peripheral wall 32. In addition, an inner peripheral wall 33 is suspended from the inner peripheral edge of the top plate 31 and has an intermediate portion connected by a plurality of circumferential ribs 33a. The inner peripheral wall 33 is connected to the inner peripheral upper end of the cylinder B1. It is fitted.

  The main cap B2b extends from the outer peripheral edge of the flange-like top wall 35 rotatably fitted between the upper surface of the flange 21 of the cylinder B1 and the lower surface of the outer peripheral wall 32 of the joint cap B2a to the outer periphery of the container body neck portion 12. A peripheral wall 36 to be screwed is vertically provided. The mounting cap is not limited to that of the first embodiment. In short, the neck B12 is closed while the cylinder B1 is suspended inside the container body A, and the pump B is detachably mounted on the container body A. Any form is acceptable.

  The dip tube B3 can be formed of a synthetic resin or the like, and is suspended from the lower end of the cylinder B1 to the inner bottom of the container body A. The dip tube B3 has an outer diameter of the cylinder B1 for sliding the tip of the handling member C. The outer diameter is the same as that of the cylinder B1 and is preferably a straight one. In the first embodiment, the exposed portion is the cylinder B1 except for the fitting portion fitted in the lower end portion of the cylinder B1. The small-diameter portion 20a has an outer peripheral surface having the same outer diameter as that of the small-diameter portion 20a. Further, a locking surface f1 is projected from the lower end of the outer periphery of the dip tube B3. The locking surface f1 is for abutting and locking the lower end of the handling member C to push up the handling member C. In the first embodiment, the locking surface f1 is a flange-like locking projecting from the lower end of the outer periphery of the dip tube B3. The upper surface of the plate 40 is a locking surface f1. The lower surface of the locking plate 40 is supported by a triangular plate-like support plate 41 protruding in the circumferential direction. The locking surface f1 is not limited to that of the first embodiment, and can protrude from the lower end of the outer periphery of the dip tube B3 and can be pushed up by abutting and locking to the lower end of the handling member C. For example, each upper surface of a plate-like protrusion having a plurality of circumferential projections on the outer periphery of the dip tube B3 and having an upper surface forming a horizontal surface can be used as a locking surface.

  The actuating member B4 is formed of synthetic resin or the like. In the first embodiment, a piston 51 that slides on the cylinder B1 protrudes from the lower end of the outer periphery, and a stem 51 that protrudes upward from the mounting cap B2 is provided. The discharge head 52 is fitted on the upper end of the stem 51. In the ejection head 52, a nozzle 53 communicating with the inside of the stem 51 is provided on the front surface, and an ejection port 54 is opened at the tip of the nozzle 53. The actuating member B4 is biased upward by the coil spring s, and is configured to be pushed down against the elastic force of the coil spring s and to be raised from the pressed state by the elastic force of the coil spring s. Various specific configurations of the operation member B4 can be adopted as long as the discharge head 52 is fitted to the upper end of the stem 51 projecting from the cylinder B1 so as to be movable up and down in the upward biased state. .

  Further, the discharge head 52 is configured to be able to be locked in a depressed state, that is, configured to be able to be locked in a depressed state of the operation member B4. In the first embodiment, the inner surface of the peripheral wall 55 of the discharge head 52 is screwed to the outer peripheral wall 32 of the joint cap B2a, so that it can be locked to the mounting cap B2 while the operating member B4 is pushed down. Yes. At this time, the lower surface of the peripheral wall 55 of the ejection head 52 is abutted and locked to the flange portion 32a of the outer peripheral wall.

  Furthermore, the mounting surface f2 which can be mounted stably is provided in the top part of the discharge head 52, and the removed pump B can be mounted upside down. In the first embodiment, as shown in FIG. 3, the upper surface of the ejection head 52 is formed as a horizontal surface so that it can be placed upside down. The placement surface f2 on which this stable placement is possible is not limited to the one in this example, and for example, the peripheral edge of the top surface of the ejection head 52 can be formed in an annular plane. The removed pump B can be inverted while the operating member B4 is urged upward, and can be inverted while the operating member B is pushed down and locked. In addition, the present invention includes the case where the ejection head does not have a placement surface f2 that can be stably placed and cannot be placed upside down. For example, the upper surface of the ejection head 52 as shown in FIG. It may be a curved surface. The configuration of the second embodiment is the same as that of the first embodiment except for this portion.

  The liquid in the container body A is sucked up into the cylinder B1 through the dip tube B3 by the vertical movement of the operating member B4, and the liquid sucked up into the cylinder B1 is discharged from the discharge port 54 through the operating member B4. In this case, a well-known pump mechanism such as a suction valve or a discharge valve (not shown) operates.

The handling member C is formed of a material having elasticity such as a synthetic resin or an elastomer, is closed between the mouth / neck portion 12 and the cylinder B1 and is fitted to the mouth / neck portion 12, and the tip portion is the outer periphery of the cylinder B1. In the first embodiment, the fitting cylinder 60b is fitted to the upper inner periphery of the mouth neck 12 from the inner periphery of the flange 60a that is in contact with the upper surface of the mouth neck 12 in the first embodiment. A mounting portion 60 extending from the lower end edge of the mounting portion 60, a sliding wall 64 extending from the lower end edge of the elastic wall 63 and slidable on the outer periphery of the cylinder B1. It has. The sliding cylinder 64 is pressed against the outer periphery of the cylinder B1, and when removing the pump B, the sliding cylinder 64 is configured so as to be pressed from the outer periphery of the cylinder B1 to the outer periphery of the dip tube B3 having a slightly smaller diameter.

  Further, a through hole 65 is formed in the elastic wall 63, and the outside air introduced through the outside air introduction hole 23 of the cylinder B1 at the time of decompression of the upper part of the container body A due to a decrease in liquid is passed through the through hole 65. It plays a role of introducing into the container body A. Therefore, in this case, the pressure contact position of the handling member C to the outer periphery of the cylinder B1 needs to be positioned below the outside air introduction hole 23 of the cylinder B1. Further, as shown in FIG. 6 in the third embodiment, when the elastic wall 63 is not provided with a through hole, the pressure contact position of the handling member C to the outer periphery of the cylinder B1 is located above the outside air introduction hole 23 of the cylinder B1. There is a need to. In the third embodiment, the handling member C includes a mounting portion 60 in the form of a flange 60a that abuts and fits on the upper surface of the mouth-and-neck portion 12, and an elastic wall 63 that is gradually reduced in diameter directly downward from the inner peripheral edge of the mounting portion 60. The sliding cylinder 64 is extended from the lower end edge of the elastic wall 63, and the outer periphery of the upper end of the elastic wall 63 is pressed against the upper end of the inner periphery of the mouth-and-neck portion 12. Other configurations are the same as those of the first embodiment.

  The liquid ejector 1 configured as described above removes the pump B when refilling the liquid. When removing the pump B, for example, when the main cap B2b of the mounting cap B2 is screwed and the pump B is pulled up, FIG. As shown in (a), the sliding cylinder 64 at the tip of the handling member C slides on the outer periphery of the cylinder B1 to scrape off the liquid adhering thereto, and then from the outer periphery of each guide projection 22 through the curved surface. The liquid adhered to the outer periphery of the dip tube B3 is scraped off and scraped off, and as shown in FIG. 4B, the lower surface of the sliding cylinder 64, which is the lower end portion of the handling member C, comes into contact with the locking surface f1, Next, when the pump B is further pulled up, as shown in FIG. 4C, the handling member C is detached from the mouth-and-neck portion 12 by pushing up the locking surface f1, and is removed together with the pump B. The removed pump B with the handling member C can be placed in an inverted state as shown in FIG.

  Next, after a refill liquid is injected into the mouth-and-neck portion 12 from a refill container (not shown), the handling member C and the pump B are mounted on the container body A again to complete the refill. The handling member C is mounted, for example, by inserting the tip of the dip tube B3 to which the handling member C is locked from the mouth-and-neck portion 12 and simultaneously pressing the flange 60, thereby fitting the handling member C to the mouth-and-neck portion 12. Then, after the cylinder B1 is further pushed in and inserted, the main cap B2b can be easily attached by screwing the main cap B2b onto the mouth and neck.

1: liquid ejector A: container body 10 ... trunk, 11 ... shoulder, 12 ... mouth / neck B: pump B1: cylinder 20 ... cylindrical wall, 20a ... small diameter part, 21 ... flange 22 ... guide projection,
23 ... Outside air introduction hole B2: Mounting cap B2a: Joint cap 30 ... Fitting cylinder, 31 ... Top plate, 32 ... Outer wall, 32a ... Flange part, 33 ... Inner wall,
33a ... rib B2b: main cap 35 ... flange-shaped top wall, 36 ... peripheral wall B3: dip tube 40 ... locking plate, 41 ... support plate, f1 ... locking surface B4: actuating member 50 ... piston, 51 ... stem, 52 ... Discharge head, 53 ... Nozzle, 54 ... Discharge port,
55 ... peripheral wall, f2: mounting surface C: handling member 60 ... mounting portion, 60a ... flange, 60b ... fitting cylinder, 63 ... elastic wall, 64 ... sliding cylinder,
65 ... Through hole s: Coil spring

Claims (5)

  In a state where the cylinder (B1) is suspended inside the container body (A), the mouth and neck (12) is closed, and the pump (B) is detachably attached to the container body (A), and the cylinder (B1 ) A liquid discharger constructed such that the dip tube (B3) is suspended from the lower end to the inner bottom of the container body (A) and the liquid in the container body (A) is discharged by the operation of the pump (B). A handling member (closed between the mouth-and-neck portion (12) and the cylinder (B1) and fitted to the mouth-and-neck portion (12) and the tip end portion slidably fitted to the outer periphery of the cylinder (B1)) C) and a locking surface (f1) projectingly provided at the lower end of the outer periphery of the dip tube (B3). When the pump (B) is removed, the tip of the handling member (C) is connected to the outer periphery of the cylinder (B1) and After sliding on the outer periphery of the dip tube (B3), it contacts the locking surface (f1) Liquid dispenser, characterized in that removal is configured to be a squeezing member (C) by pushing up the locking surface (f1).   The handling member (C) extends from the inner peripheral edge of the flange (60a) that abuts and fits to the upper surface of the mouth and neck (12) to the fitting cylinder (60b) that fits to the upper inner periphery of the mouth and neck (12). Mounting portion (60), elastic wall (63) gradually reducing in diameter downward from the lower end edge of mounting portion (60), and extending from the lower end edge of elastic wall (63) to slide on the outer periphery of cylinder (B1) The liquid ejector according to claim 1, further comprising a movable sliding cylinder.   The liquid ejector according to claim 2, wherein a through hole (65) for introducing outside air into the container body (A) is provided in the elastic wall (63) of the handling member (C).   The pump (B) is attached to the container body (A) in a state where the cylinder (B1) is suspended inside the container body (A) by fitting the mounting cap (B2) to the outer periphery of the mouth neck portion (12). An actuating member (B4), which is detachably mounted, is fitted to the discharge head (52) on the upper end of a stem (51) projecting from the cylinder (B1) so as to be vertically movable in an upward biased state. The liquid in the container body (A) is discharged from the discharge port (54) of the discharge head (52) by the vertical movement of the operation member (B4), and the operation member (B4) is locked in the depressed state. The liquid ejector according to claim 1, wherein the liquid ejector is configured to be capable of. The liquid ejector according to claim 4, further comprising a placement surface (f2) that can be placed stably on the top of the discharge head (52) and configured to allow the removed pump (B) to be placed upside down.