JP5257926B2 - Liquid ejector - Google Patents

Description

  The present invention relates to a liquid ejector, and more particularly to a liquid ejector in which a container body can be easily exchanged and the exchanged container body has excellent airtightness.

  Various liquid ejectors have been proposed in which a pump is attached to the upper end of the container body and the liquid in the container body is ejected by operating the pump. These liquid ejectors are generally disposed of with the pump after the liquid contained in the container has been used up, but have been changed to a form in which the liquid is refilled into the container in consideration of recent waste disposal circumstances. ing. In addition, a liquid ejector has been proposed in which only the container body can be replaced with a replacement container body after the stored liquid is used up in consideration of the characteristics, usage, and the like of the stored liquid (see, for example, Patent Document 1). ).

The liquid ejector of the above-mentioned Patent Document 1 is housed in a cylindrical case body and is detachably suspended, and includes a container body for liquid storage with a mouth and neck raised from the upper end of a thin body, A pair of side plates that are vertically suspended from both sides of the peripheral wall, and a case lid that is connected to both sides of the case main body so as to be vertically movable and rotatable, and the top wall of the lid is vertically penetrated and fixed. And a pump in which the part is suspended in a liquid-tight manner in the mouth-and-neck part, and is configured so that the container body can be exchanged by lifting the case lid and then rotating it.
JP 2002-224600 A

  Since the liquid ejector of the above-mentioned Patent Document 1 only needs to discard the container body having a thin body after the contained liquid is used up, the amount and volume of waste can be reduced as much as possible, and the container body can be replaced. In this case, it has an excellent characteristic that it can be performed by an extremely simple operation of lifting and rotating the case lid.

  In the present invention, the container body can be replaced by a very simple operation when the stored liquid in the container body is used up in the same manner as the conventional liquid ejector described above, and is suitable for dealing with a small-capacity container body. Yes, it is extremely convenient for frequent container replacement, for example, frequent replacement such as exhaustion each time, and a liquid ejector that does not cause liquid leakage even if such replacement is performed. suggest.

  The liquid ejector of the present invention includes a case body, a container body, and a pump.

  The case body is provided with a self-supporting property formed of a synthetic resin or the like, and has a shape in which a cylindrical mouth portion is opened on a cylindrical body portion. As its function, the container body is housed and supported, and an upper biasing means for biasing the container body upward is provided. The diameter of the cylindrical body portion may be the same as or larger than the diameter of the mouth portion, and may be appropriately selected in consideration of the internal structure and the like.

  The container body is formed of a synthetic resin or the like, and has a form in which a mouth and neck portion is erected at the upper end of the cylindrical body portion. The container body contains liquid and is contained in the case body body portion and the case body mouth portion from above the case body. It is constructed so as to be housed and mounted. The container body may be configured such that the pump is removed and the liquid is refilled when the stored liquid runs out, but a cartridge type replacement container body can also be used. Although it is necessary to select the container body according to the upward biasing form, it is possible to select between the case where the whole is provided with rigidity and the case where only a part is provided with rigidity and the others are formed thin. In the former case, the entire container body is urged upward by an elastic material, and in the latter case, the upper part of the container body is urged upward by an elastic material.

  The pump is detachably attached to the case body by a mounting cap that is fitted and locked to the outer periphery of the case body mouth part from the back side of the top plate, and the cylinder at the lower end is suspended in the container body, The upper end of the ejection head protrudes above the mounting cap so as to be movable up and down. As the internal mechanism of the pump, a conventionally known mechanism is used. However, in the case of the present invention, one having a larger amount of jetting than a general one is suitably employed because of its structure. For example, in a general hand spray, a single ejection amount is about 0.07 cc, but in the present invention, an ejection amount of around 0.6 cc can be preferably employed.

  In the present invention, an upper urging means for urging the container body upward with respect to the case body is provided, and the upper surface of the container body neck is pressed against the pump by the upper urging means so that the upper opening of the container body is hermetically sealed. It is configured as shown. The pump surface that presses the upper surface of the container body neck portion corresponds to, for example, a pump portion located above the container body neck portion corresponding to the form of the pump, such as a cylinder flange or a top plate of a mounting cap.

The first means is configured as follows. That is, the case body A having a cylindrical mouth portion 11 opened on the tubular body portion 10 is stored and mounted in the body portion 10 and the mouth portion 11 from above the case body A, and at the upper end of the tubular body portion 30. a container body C in the form of standing upright the neck 31, the case body mouth 11 mounted cylinder 50 which seals fitted engagement on the outer circumference detachably by a top plate 51 mounted cap E ₁ was vertically from the back to the case body a The cylinder E ₂ is suspended in the container body C, and the ejection head 71 is provided with a pump E that protrudes up and down in the upper direction of the mounting cap E _1. Upper urging means for urging upward was provided, and the upper surface of the container body neck portion 31 was pressed against the pump E by the upper urging means to hermetically seal the upper end opening of the container body C.

The second means is configured as follows. In other words, preventing at the first unit, the locking means of the casing body mouth 11 mounted cylinder 50 to the outer periphery is that screwing the pivot screwing the final stage of mounting the cap E ₁ with respect to the case body A Thus, a rotation preventing means for locking is provided.

The third means was configured as follows. That is, in the second means, the rotation preventing means includes a fitting recess 12 provided around the upper peripheral edge of the non-circular case body barrel 10 and the fitting recess 12 in the final stage of screwing. The outer peripheral wall 52 of the mounting cap E ₁ to be fitted is configured.

  The fourth means is configured as follows. That is, in any one of the first to third means, the upper biasing means includes an engagement protrusion 32 projecting from the outer surface of the container body neck portion 31, and a case body mouth portion. 11 is an upward biasing means in which an elastic material B is interposed between a locking projection 13 provided on the inner surface, and the pump E is a container against the elastic force of the elastic material B when the pump E is fitted. The upper surface of the body / neck part 31 was pushed down, and the upper end opening of the mouth / neck part 31 was sealed.

The fifth means is configured as follows. That is, in any one of the first to fourth means, the case body A is provided with a cylindrical body portion 10 having an open lower end, and protrudes from the inner peripheral lower portion of the mouth portion 11. A coil spring B ₁ as an elastic material B is mounted on the flange-like locking projection 13.

  The sixth means is configured as follows. That is, in any one of the first to third means, the upper urging means is interposed between the inner bottom portion of the case body A and the bottom surface of the container body C. When the pump E is fitted, the pump E pushes down the upper surface of the container body neck portion 31 against the elastic force of the elastic material B, and the upper end opening of the mouth neck portion 31 is hermetically sealed.

The seventh means is configured as follows. That is, in the sixth means, the case body A is a strip-like leaf spring B ₂ provided with a bottomed cylindrical body portion 10 and the elastic material B mounted on the bottom portion of the case body.

  According to the present invention, the upper urging means for urging the container body C upward with respect to the case body A is provided, and the upper surface of the container body neck portion 31 is pressed against the pump E by the upper urging means. Since the upper end opening is hermetically sealed, the sealing performance of the container body C is extremely good, and even when the container body C is repeatedly replaced or the liquid inside the container body C is refilled, an airtight seal is always possible. It becomes. In addition, since the container body C is housed and mounted in the body 10 and the mouth portion 11 from above the case body A, there is no risk of leakage of liquid at the time of mounting, and the container E can be easily mounted. Since the container body can be attached only by fitting and locking the container body, there is an advantage that the container body C can be very easily replaced or liquid can be refilled into the container body C.

Locking means of the casing body mouth 11 mounted cylinder 50 to the outer periphery is that screwing, provided the rotation preventing means for locking to prevent rotation in screwing the final stage of mounting the cap E ₁ with respect to the case body A In this case, since the upper surface of the container body C can be sealed by screwing down the mounting cylinder 50, it is possible to perform a reliable and reliable seal, and the screwing is not loosened due to the presence of the rotation preventing means. As a result, there is no inconvenience that the seal portion becomes sweet.

Wherein the rotation preventing means, the fitting recess 12 which is provided around the case body trunk portion 10 the top rim part of the non-circular outer peripheral wall 52 of the mounting cap E ₁ to be fitted in threaded final stage fitting recess 12 If configured in a quite easy engagement and disengagement of the rotation preventing means, there is an advantage that can do it screwing the mounting cap E _1, the flow of the worm removal operation.

  The upper biasing means has an elastic material B interposed between an engaging protrusion 32 protruding from the outer surface of the container body neck portion 31 and a locking protrusion 13 provided on the inner surface of the case body mouth portion 11. When the pump E is fitted, the upper end opening of the mouth neck portion 31 is hermetically sealed by pressing the upper surface of the container neck portion 31 against the elastic force of the elastic material B when the pump E is fitted. Is very easy to assemble the elastic material B, and has an advantage that the hermetic seal of the upper end opening of the mouth / neck portion 31 can be naturally and easily performed. Furthermore, even if the container body C other than the mouth / neck portion 31 and the engaging protrusion 32 is formed thin, there is no functional inconvenience, so there is an advantage that the container body can be manufactured more inexpensively.

The case body A is provided with a cylindrical body portion 10 having an open lower end, and a coil spring B ₁ as an elastic material B is mounted on a flange-like locking protrusion portion 13 protruding from the inner peripheral lower portion of the mouth portion 11. In this case, the assembly operation of the coil spring B ₁ is further facilitated.

  The upper biasing means is an elastic material B interposed between the inner bottom portion of the case body A and the bottom surface of the container body C, and resists the elastic force of the elastic material B when the pump E is fitted. When the pump E pushes down the upper surface of the container neck portion 31 and hermetically seals the upper end opening of the mouth neck portion 31, there is also an advantage that the hermetic seal of the upper end opening of the mouth neck portion 31 can be naturally and easily performed. .

The case body A is provided with a tubular body 10 having a bottom, when the elastic member B is the case inside the bottom strip-shaped plate spring B ₂ mounted on the durable elastic material B Even if the container body is repeatedly replaced, there is an advantage that inconveniences such as sagging of the elastic material B can be prevented as much as possible.

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

  1 to 5 show an example of a liquid ejector 1, and the liquid ejector 1 includes a case body A, an elastic material B, a container body C, and a pump E.

  The case body A has a small-diameter mouth portion 11 opened on the body portion 10. The body portion 10 has a top wall 10b extending inwardly from the upper end edge of a horizontally long elliptic cylindrical peripheral wall 10a, and a fitting recess in which a peripheral portion of a mounting cap described later is fitted to the edge portion of the top wall 10b. 12 is recessed, and a cylindrical mouth portion 11 is erected through in the center of the top wall 10b. The lower end of the mouth part 11 protrudes slightly below the trunk top wall 10b, and a flange-like locking protrusion 13 is extended inward from the lower edge of the mouth part 11. Further, as shown in FIG. 3, a pair of guide ribs 14 project inward from the front and rear of the upper portion of the peripheral wall 10a. Each guide rib 14 is configured such that its inner surface is in the same position as the inner surface of the locking projection 13 and abuts and locks to the outer surface of the mounted container body C.

The elastic material B biases the container body C upward with respect to the case body A. In this example, the elastic material B is in the form of a coil spring B ₁ mounted on the inner surface of the mouth 11 on the locking projection 13. .

The container body C has a form in which a mouth-and-neck part 31 having a smaller diameter than the bottomed cylindrical body part 30 is erected, and a flange-like engagement protrusion 32 is provided on the upper and lower intermediate parts of the mouth-and-neck part 31. In addition, an annular locking recess 33 is provided in the outer surface of the mouth / neck portion 31 directly above the engaging protrusion 32. And it is comprised so that accommodation mounting | wearing may be carried out from the case body A upper direction. At that time, as shown in FIG. 2, it is mounted to the case body A first engagement projection 32 in a state of being contact placed on the coil spring B ₁ top.

In this example, the container body C has a small capacity, and a pump E having a large amount of ejection (for example, 0.6 cc) is used, and the container body C for replacement as shown in FIG. _You are using _a . The replacement container body _Ca is provided with a lid member D at the top. The lid member D has a ring 40 that is fitted in the locking recess 33 to prevent it from slipping out, and a lower edge is connected to the upper edge of the ring 40 via an easily cut thin wire 41, and the outer periphery of the mouth neck 31 A cut-out band 42 fitted to the lid, a lid plate 43 for connecting the lower peripheral edge to the upper edge of the cut-off band 42 via an easily cut thin wire 41, and closing the upper end opening of the mouth-and-neck 31. A seal cylinder 44 is provided so as to be suspended from the back surface of the plate 43 and to be fitted into the mouth-neck portion 31 in a liquid-tight manner. Further, a finger-hanging protrusion 45 is projected from a part of the outer surface of the excision band 42. Then, by grasping and pulling the finger-hanging protrusions 45, the upper and lower thin wires 41 are cut and the excision band 42 is removed, and then the cover plate 43 and the seal cylinder 44 are removed from the container body C and used. can do.

The pump E includes a mounting cap E ₁ , a cylinder E ₂ , an operating member E _{3 and the} like. The mounting cap E ₁ has a mounting cylinder 50 screwed to the outer periphery of the mouth portion 11 suspended from the back surface of the top plate 51 and an outer peripheral wall 52 suspended from the periphery of the top plate 51. The lower end edge of the outer peripheral wall 52 is forcibly fitted into the fitting recess 12 at the final stage when the mounting cylinder 50 is screwed into the mouth part 11, and both form anti-rotation means. The cylinder 50 acts so as not to loosen, and is configured to come off if it is forcibly rotated.

Cylinder E ₂ has a cylindrical shape with upper and lower ends open, and a flange 60 projecting from the upper outer periphery abuts the back surface of the mounting cap top plate 51 and protrudes upward through a through hole in the center of the mounting cap top plate 51. the locking cap 61 fitted and fixed to the mounting cap E ₁ in. The lower end of the cylinder E ₂ is fitted to the upper end of the pipe 62, thereby hanging the lower end to the lower container body C. Further, in the cylinder E ₂ the lower end is provided with a suction valve (not shown).

The actuating member E ₃ has a jet head 71 fitted to the upper end of a stem 70 that is connected to a lower part of a piston (not shown) that slides in the cylinder E ₂ , and can be pushed down in an upward biased state. The operation member E ₃ is pushed down so that the liquid in the cylinder E ₂ is ejected from the ejection port 72 of the ejection head 71 by opening a discharge valve (not shown) provided in the stem 70. . The discharge valve is closed when the actuating member E ₃ is raised, as sucked up into the cylinder E ₂ the liquid negative pressure in the suction valve is opened in the container body C in the cylinder E ₂ via the pipe 62 It is composed.

When the liquid ejector is assembled, as shown in FIG. 2, a coil spring B ₁ is fitted and placed on the inner surface of the mouth portion 11 of the case body A, and the container body C from which the lid member D is separately removed is placed above the case body A. more insert and mounting places the engaging projection 32 on the coil spring B _1. Next, while inserting the pipe 62 and the cylinder E ₂ into the container body C, the mounting cylinder 50 of the mounting cap E ₁ is screwed into the mouth portion 11, and at this time, the cylinder E ₂ which is a part of the pump E The upper surface of the mouth and neck portion 31 of the container body C is pushed down against the elastic force of the coil spring B ₁ by the back surface of the flange 60. Finally, the lower end portion of the outer peripheral wall 52 is forcibly fitted in the pivot mounting cap E ₁ is prevented in the fitting recess 12.

When the liquid in the container body C is used up, the mounting cap E ₁ is rotated to unscrew the mounting cylinder 50 from the mouth portion 11. At this time, the initial outer peripheral wall 52 and the fitting recess 12 are fitted to try to prevent the outer peripheral wall 52 from rotating, but the fitting is released by forcibly rotating. Next, the container body C is taken out and a new replacement container body _Ca may be mounted in the same manner as described above.

  FIGS. 6 to 8 show other examples. In this example, the case body A has a small-diameter mouth portion 11 opened on a bottomed cylindrical body portion 10. The body 10 has a top wall 10b extending inwardly from the upper end edge of a horizontally long elliptic cylindrical peripheral wall 10a, and a fitting recess 12 is provided in the edge of the top wall 10b. In addition, a bottom wall 10c formed separately is fitted and fixed to the lower end. The bottom wall 10c is fitted with a fitting cylinder 15 erected on the peripheral edge at the lower end of the inner surface of the circumferential wall 10a to prevent it from coming out via the concave and convex engaging means. Further, a cylindrical mouth portion 11 having a base end opened at the center of the top wall 10b. The inner diameter of the mouth portion 11 is such that the upper portion of the container body portion 30 fits perfectly. Further, as shown in FIG. 8, a pair of guide ribs 14 similar to those in FIG. 3 are provided inwardly in front of and behind the upper portion of the peripheral wall 10a.

A leaf spring B ₂ as an elastic material B is mounted on the upper surface of the bottom wall 10c. Leaf spring B ₂ may form a fitting fixed strip-shaped both end in the bottom left and right of the case body A, and an arc-shaped central portion is projected upward. Since other configurations are the same as those in the example of FIG. 1, the same reference numerals are given and description thereof is omitted. The case of assembling the liquid ejector in this case is the same as in the case of FIG. 1, and the container body C with the lid member D removed is attached to the case body A with the leaf spring B ₂ fixed to the bottom as shown in FIG. The case body A is inserted from above, and the bottom is placed on the leaf spring B ₂ and attached. Next, while inserting the pipe 62 and the cylinder E ₂ into the container body C, the mounting cylinder 50 of the mounting cap E ₁ is screwed into the mouth portion 11, and at this time, the cylinder E ₂ which is a part of the pump E The upper surface of the mouth / neck portion 31 of the container body C is pushed down against the elastic force of the leaf spring B ₂ by the back surface of the flange 60. Finally, the lower end portion of the outer peripheral wall 52 is forcibly fitted in the pivot mounting cap E ₁ is prevented in the fitting recess 12.

It is a longitudinal cross-sectional view of a liquid ejector. Example 1 It is a longitudinal cross-sectional view of the decomposition | disassembly state of a liquid ejector. Example 1 It is a longitudinal cross-sectional view of a liquid ejector. Example 1 It is a half sectional view of a container for exchange. Example 1 It is a half section after opening of a container for exchange. Example 1 It is a longitudinal cross-sectional view of a liquid ejector. (Example 2) It is a longitudinal cross-sectional view of the decomposition | disassembly state of a liquid ejector. (Example 2) It is a longitudinal cross-sectional view of a liquid ejector. (Example 2)

Explanation of symbols

1 ... Liquid ejector A ... Case body
10 ... trunk, 10a ... peripheral wall, 10b ... top wall, 10c ... bottom wall, 11 ... mouth, 12 ... fitting recess,
13 ... Locking projection, 14 ... Guide rib, 15 ... Fitting cylinder B ... Elastic material
B ₁ ... coil spring, B ₂ ... leaf spring C ... container body (C _a ... container body for replacement)
30 ... trunk, 31 ... coil spring, 32 ... engagement protrusion, 33 ... locking recess D ... lid member
40 ... Ring, 41 ... Easily cut thin wire, 42 ... Cut band, 43 ... Cover plate, 44 ... Seal tube,
45 ... Finger-hanging piece E ... Pump
E ₁ … Installation cap
50 ... Installation cylinder, 51 ... Top plate, 52 ... Outer wall
E ₂ ... Cylinder
60 ... Flange, 61 ... Fixed cap, 62 ... Pipe
E ₃ ... Actuating member
70 ... Stem, 71 ... Ejection head, 72 ... Ejection port

Claims (7)

Tubular body portion (10) on the cylindrical neck portion (11) of the opened case body and (A), housed mounted on the case body (A) barrel from above (10) and the mouth (11) as well as, the cylindrical body (30) a container body forming the upstanding form the neck (31) at the upper end (C), and the case body mouth (11) fitted and engaged with the hollow mounting to the outer periphery (50) the top plate (51) mounted caps vertically from the back (E ₁₎ by the case body while detachably attached (a), the suspended cylinder (E ₂₎ in the container body (C), and, injection head ( 71 ) is provided with a pump ( E ) projecting upward from the mounting cap ( E ₁ ) so as to move up and down, and provided with an upper biasing means for biasing the container body ( C ) upward with respect to the case body ( A ) the container body is pressed against the container body mouth neck (31) the upper surface to the pump (E) by said upper biasing means (C) an upper end opening closed Liquid ejector, characterized in that the Le. The locking means of the mounting cylinder ( 50 ) on the outer periphery of the case body mouth portion ( 11 ) is screwed, and is prevented from rotating at the final stage of screwing of the mounting cap ( E ₁ ) with respect to the case body ( A ) . The liquid ejector according to claim 1, further comprising a rotation preventing means for stopping. The rotation prevention means, a non-circular casing barrel (10) fitting recess (12) which is provided around the top rim portion is fitted with screwed final stage fitting recess (12) mounted cap the outer peripheral wall (52) and a liquid ejector according to claim 2, wherein the configuration data of (E _1). Between the upper biasing means, the engaging projection projecting from the container body mouth neck (31) outer surface (32), the case body mouth portion (11) locking protrusion provided on the inner surface (13) to an elastic member (B) upward biasing means is interposed, pump during engagement (E), elastic material (B) of the elastic force in against the pump (E) is the container body mouth and neck ( 31 ) The liquid ejector according to any one of claims 1 to 3, wherein the upper surface of the mouth and neck ( 31 ) is hermetically sealed by pressing down the upper surface. The case body ( A ) includes a cylindrical body ( 10 ) having an opening at the lower end, and an elastic material ( 13 ) on a flange-shaped locking protrusion ( 13 ) projecting from an inner peripheral lower part of the mouth ( 11 ). liquid sprayer according to any one of claims 1 to 4 formed by mounting a coil spring (B ₁₎ as B). The upper biasing means, and the case body (A) in the bottom, an elastic member is interposed between the bottom surface of the container body (C) (B), when the fitting of the pump (E), elastic material ( The pump ( E ) depresses the upper surface of the container body neck and neck ( 31 ) against the resilience of B ) and hermetically seals the upper end opening of the mouth and neck ( 31 ). Liquid ejector according to crab. The case body (A) is provided with a cylindrical barrel portion having a bottom (10), according to claim 6, wherein the said elastic material (B) is strip-shaped leaf spring attached to the case body bottom (B ₂₎ Liquid ejector.

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