JP5408667B2 - Liquid ejector - Google Patents

Description

  The present invention relates to a liquid ejector, and more particularly to a liquid ejector that can recognize the amount of ejected liquid.

  As this type of ejector, for example, a storage liquid that is required to use a predetermined amount such as a medicine can be determined for use of the predetermined amount. (For example, see Patent Document 1)

  As described above, the ejector as described above can determine the maximum number of medicines to be administered by stopping the rotating element, but the determination on the number of administrations ends at that time. Certainly, in the above-mentioned ejector, it is possible to push down the nose to completely use the medicine in the container after the stop, but it is only for residual liquid treatment, basically the required number of doses per time When it is finished, the use of the ejector is finished.

  The applicant has already filed an application in view of the above points. (For example, see Patent Document 2)

  The liquid ejector of Patent Document 2 is fitted to a cover cylinder fixed on an aerosol container body and a stem projecting so as to be able to be pushed into the upper end of the aerosol container body in an upward biased state, and an upper end portion from the top portion of the cover cylinder , A cylindrical push button mounted on the outer periphery of the nozzle so as to be rotatable and capable of depressing the nozzle, and a recognition system for recognizing the number of times the nozzle is depressed.

  In addition, the recognition system includes a rotation mechanism that rotates around a nozzle and is capable of being pressed down in an upward biased state by rotating the rotation member at a predetermined angle by pressing down the push button, and is linked to the rotation mechanism, and a predetermined number of push buttons And a locking mechanism that prevents the stem from being pushed down when the button is pushed down.

  The rotating mechanism includes a plurality of partition plates provided radially at a peripheral edge in the cover cylinder and provided with a first inclined surface on the lower surface, a tip portion positioned between the pair of partition plates, and a second inclined surface on the upper surface. A rotating member provided with a projecting rotating arm and a push button and the rotating arm to prevent rotation and interpose the rotating member so as to be able to be pushed down, and a plurality of third sliding surfaces of the second inclined surface slide on the lower surface. A partition plate comprising a ring member having an inclined surface connected in an annular shape, and a sliding arm adjacent to the third inclined surface that contacts the second inclined surface and the adjacent first inclined surface when the push button is pressed down. The locking mechanism is configured such that a locking surface is provided at a predetermined position in the mounting member to be mounted on the aerosol container body through which the nozzle is inserted and the locking mechanism is in contact with the locking surface at a predetermined position of the rotating member. It is configured to prevent the pivot arm from descending by providing a locking surface.

  The above-mentioned liquid ejector can be tactilely recognized by the lock mechanism for the required number of ejections, and its structure is different from the conventional one, and its operation operation is not unreasonable and rich in durability. Further, after the required number of ejections, the lock mechanism is actuated, and then the locked state is released, and the necessary number of ejections can be newly performed from the beginning.

Japanese Patent No. 3211894 JP 2007-275879 A

  The present invention is a further improvement of the excellent liquid ejector having the above-described characteristics, and proposes a liquid ejector that can eject liquid more reliably when the push button is depressed each time.

  The first means is configured as follows. That is, a nozzle B4 fitted to a stem 4 protruding so as to be able to be pushed into the upper end of the aerosol container body A in an upward biased state, a mounting member B1 fixed on the aerosol container body A and through which the nozzle B4 is inserted, Cover cylinder B2 fixed on member B1 and projecting the upper end of nozzle B4 from the top, cylindrical push button B9 mounted on the outer periphery of nozzle B4 so as to be rotatable and capable of depressing nozzle B4, and nozzle B4 A recognizing system for recognizing the number of times the button is depressed, and the recognizing system is configured to rotate a rotating member B5 that is rotatable around the nozzle B4 and is capable of being depressed in an upward biased state by rotating the push button B9 by a predetermined angle. And a locking mechanism that is linked to the rotating mechanism and prevents the stem 4 from being pushed down when the push button B9 is pushed down a predetermined number of times. The rotating mechanism is provided radially on the peripheral edge in the cover cylinder B2, and A plurality of partition plates 30 each having a first inclined surface s1 on the surface, and a rotating arm 53 having a tip portion positioned between the pair of partition plates 30 and a second inclined surface s2 on the upper surface are projected. A plurality of third inclined surfaces s3 in which the second inclined surface s2 slides on the lower surface are connected in an annular manner while preventing rotation and being interposed between the rotating member B5, the push button B9, and the rotating arm 53. A partition plate having a ring member B8 provided thereon and sliding on the third inclined surface s3 and the adjacent first inclined surface s1 with which the second inclined surface s2 abuts when the push button B9 is pressed down, and the rotating arm 53 is adjacent. The locking mechanism is configured to overcome 30t, and the locking mechanism is provided with a locking surface a at a predetermined position in the mounting member B1 and a locked surface b that contacts the locking surface a at a predetermined position of the rotating member B5. In the liquid ejector configured to prevent the moving arm 53 from descending, the nozzle B4 is temporarily engaged at a predetermined position where the nozzle B4 is pushed down. After, it provided a forced lowering means for lowering the nozzle B4 to a position for ejecting the liquid.

  The second means is configured as follows. That is, in the first means, the forcible lowering means is erected on the mounting member B1, and has a taper-shaped sliding surface 28 extending upward on the inner surface of the upper end portion, and inward and outward directions. A plurality of elastic rocking plates 27 capable of elastic rocking, and pressing cylinders 58 that are suspended from the lower surface of the rotating member B5 and slide the sliding surface 28 to tilt the elastic rocking plates 27 outward. A protrusion projecting at the lower outer periphery of the nozzle B4, and a locking protrusion 40 temporarily locked at the upper part of each elastic rocking plate 27, and interposed between the locking protrusion 40 and the rotating member B5. Coil spring B7, and the compression load of coil spring B7 is made larger than the upward biasing force of stem 4, and the downward biasing force of compressed coil spring B7 after each elastic rocking plate 27 is tilted by pressing cylinder 58 As a result, the nozzle B4 is lowered to the position where the liquid is discharged.

  The third means was configured as follows. That is, in the second means, a locking projection 29 having a horizontal upper surface is provided below the sliding surface 28 of each elastic rocking plate 27, and the locking projection 29 is engaged with the upper surface. The downward stepped portion 41 of the stop projection 40 is temporarily locked.

  The fourth means is configured as follows. That is, in any one of the second means and the third means, the four elastic rocking plates 27 are erected around the stem 4 at equal intervals.

  The fifth means is configured as follows. That is, in any one of the first to fourth means, a lock release mechanism for releasing the locked state by the lock mechanism is provided.

  In the liquid ejector of the present invention, when a predetermined ejected liquid is ejected by a simple operation of pushing the push button B9, the lock mechanism is activated when the required number of ejected liquids is reached, and the stem 4 is pushed down. It is possible to prevent the ejection of the liquid and to recognize that the ejected liquid has reached the predetermined amount by touching the nozzle B4 once at the predetermined position where the nozzle B4 is pushed down. Since there is a compulsory lowering means that lowers the nozzle B4 to the discharge position, the nozzle B4 is surely lowered to the position where the liquid is discharged every time the push button B9 is pressed down. It has a feature that a predetermined amount can be ejected.

  The rotating mechanism that constitutes the recognition system also slides on the third inclined surface of the ring member that the second inclined surface s2 of the rotating member B5 contacts when the push button B9 is depressed, and the first inclined surface of the adjacent partition plate 30t, Since the rotating arm 53 gets over the adjacent partition plate 30t, it is as usual that the operation is easy and the operation is extremely easy.

  The forcible lowering means is erected on the mounting member B1 and has a taper-like sliding surface 28 extending upward on the inner surface of the upper end portion, and a plurality of elastic swings capable of elastic swinging inward and outward directions. A plate 27 and a bottom surface of the rotating member B5 are suspended, a pressing cylinder 58 that slides on the sliding surface 28 and tilts each elastic rocking plate 27 outward, and a protruding portion at the lower outer periphery of the nozzle B4. Each of the elastic swing plates 27 includes a locking projection 40 that is temporarily locked, and a coil spring B7 that is interposed between the locking projection 40 and the rotating member B5. The compression load of B7 is set to be larger than the upward biasing force of the stem 4, and the nozzle B4 is lowered to the position where the liquid is discharged by the downward biasing force of the compressed coil spring B7 after each elastic rocking plate 27 is tilted by the pressing cylinder 58. When configured as shown, the structure does not change significantly and is easy to improve. , Falling from a predetermined locking position of the nozzle B4 to the discharge position of the liquid is also combines advantages enable more smoothly.

  A locking projection 29 having a horizontal upper surface protrudes below the sliding surface 28 of each elastic rocking plate 27, and a downward stepped portion 41 of the locking projection 40 is formed on the upper surface of the locking projection 29. When temporarily locked, the nozzle B4 biased downward by the compressed coil spring B7 can be reliably locked in place, and the elastic cylinder 27 can be smoothly tilted by the pressing cylinder 58. There is an advantage that can be done.

  When four elastic rocking plates 27 are erected at regular intervals around the stem 4, the nozzle B4 can be stably locked at a predetermined locking position, and more stable operation is possible. Become.

Further, in the case where the unlocking mechanism for releasing the locked state by the locking mechanism is provided, after the necessary number of ejections is completed, the necessary number of ejections can be ejected again from the beginning, and according to the capacity of the aerosol container body A You can repeat this operation at any time.
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It is a disassembled perspective view of a liquid ejector. Example 1 It is a longitudinal cross-sectional view of a liquid ejector. Example 1 It is a principal part expanded sectional view of a liquid ejector. Example 1 It is explanatory drawing explaining the partition plate of a liquid ejector. Example 1 It is explanatory drawing explaining the effect | action of a liquid ejector. Example 1 It is explanatory drawing explaining the effect | action of a liquid ejector. Example 1 It is explanatory drawing explaining the effect | action of a liquid ejector. Example 1

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

  FIG. 1 shows an example of a liquid ejector 1 according to the present invention, and the ejector 1 includes an aerosol container body A and an ejector B, and the ejector B further includes an attachment member B1, a cover cylinder B2, and a partition plate. A member B3, a nozzle B4, a rotating member B5, a coil spring B7, a ring member B8, and a push button B9 are provided.

  In the aerosol container body A, a stem 4 is erected in such a manner that it can be pushed down from the upper end of a cylindrical barrel 3 having a metering valve 2 therein, and a fixed amount of liquid is ejected from the stem 4 when the stem 4 is pushed down. It is a thing of the well-known mechanism comprised as follows.

  The mounting member B1 is for fitting and fixing the cover cylinder B2 to the aerosol container body A. The fitting cylinder part 10 fitted to the upper end of the outer periphery of the aerosol container body A is connected to the base plate part 11 having a donut plate shape. A connecting cylinder part 13 for fitting the cover cylinder B2 is suspended from the lower surface, and the outer peripheral edge of the base plate part 11 is suspended. The connecting cylinder portion 13 has a lower end portion having a large diameter via a flange, and a concave groove 14 for alignment is provided at the upper end portion. Furthermore, a rod-like protrusion 15 having an upper surface as a locking surface a is erected at a predetermined position on the upper surface of the inner peripheral edge of the mounting member B1.

  Further, an inner peripheral wall 25 is suspended from the inner peripheral edge portion of the base plate portion 11, and four support plate portions 26 are projected inwardly on the inner surface of the lower end of the inner peripheral wall 25 at equal intervals in the circumferential direction. Elastic swing plates 27 are erected through the plate portions 26, respectively.

  The elastic rocking plate 27 constitutes a forcible lowering means, and is erected around the stem 4 at equal intervals, provided with a taper-shaped sliding surface 28 extending upward on the inner surface of the upper end portion, and A locking projection 29 whose upper surface is horizontal from the lower end edge of the sliding surface 28 protrudes inward. The locking projection 29 has a taper-shaped inclined surface that extends downward and outward from the inner edge of the upper surface.

  The cover tube B2 is provided with a window hole 22 for projecting the nozzle B4, push button B9, etc. at the center of the top wall 21 extending from the upper edge of the peripheral wall 20, and on the outer periphery of the connecting tube portion 13 of the mounting member B1. The lower part of the peripheral wall 20 is fitted so as to prevent it from being pulled out by the concave and convex engaging means, and both are integrated. The diameter of the peripheral wall 20 is reduced through a flange at the center in the vertical direction, and a fitting projection 23 that fits into the concave groove 14 is provided from the inner surface of the peripheral wall 20 below the flange so that both are fitted at predetermined positions. It is configured so that it can be combined. In addition, a display window hole 24 is formed at a predetermined position on the peripheral wall 20.

  The partition plate member B3 is for providing a plurality of partition plates 30 radially at the peripheral edge in the cover cylinder B2, and includes a plurality of annular connection plates 31 and a plurality of the connection plates 31 that are arranged in a radial manner on the lower surface of the connection plates 31. The connecting plate 31 is fitted and fixed to the position of the back surface of the top wall 21 of the cover cylinder B2 via a concave and convex engaging means or the like, so that the two are integrated. By forming each partition plate 30 separately from the cover cylinder B2 in this way, it is possible to more easily form the partition plate 30 that often requires a relatively large thickness, and to prevent the occurrence of sink marks or the like as much as possible. Of course, it is also possible to integrally form the cover cylinder and the partition plate.

  Each partition plate 30 is provided at equal intervals, and its lower surface is configured as a first inclined surface s1 that faces in a direction perpendicular to the radius. However, in this example, in order to form an unlocking mechanism to be described later, as shown in FIG. 1, a wide portion 32 in a state in which one partition plate is removed is provided at a predetermined location, and is made to correspond to the wide portion 32. The rod-shaped protrusion 15 (that is, the locking surface a) is positioned at a predetermined position. Further, the narrow partition plates 30a, 30a are configured such that the center side end surfaces of the two partition plates at a predetermined number of positions are recessed outwardly from the wide portion 32 to shorten the radial length.

  The nozzle B4 is fitted on the stem 4 of the aerosol container body A, and has an upper end projecting from the top of the cover cylinder B2 so as to be pushed upward. Further, a locking projection 40 is projected outward from the lower end edge. In the illustrated example, the locking projection 40 has a form in which the lower end portion is enlarged in diameter, and a downward stepped portion 41 is provided around the lower portion of the outer periphery. When the nozzle B4 is pushed down, the stem 4 is pushed down, and a fixed amount of liquid is ejected by a known ejection mechanism in the aerosol container body A.

  The rotating member B5 is provided around the nozzle B4 so as to be rotatable and capable of being pushed down in an upwardly biased state. The rotating member B5 has a tip portion positioned between the pair of partition plates 30 and a second inclined surface s2 provided on the upper surface. The moving arm 53 is projected. In the illustrated example, the flange portion 51 is extended from the lower end of the upper cylindrical wall portion 50 fitted to the upper outer periphery of the nozzle B4 so as to be rotatable and vertically movable, and formed to have a larger diameter than the outer peripheral edge of the flange portion 51. A lower cylindrical wall portion 52 is suspended. Further, the rotating arm 53 protrudes outward from a predetermined position of the flange portion 51, the tip end portion thereof is positioned between the pair of partition plates 30, and the second inclined surface s2 is provided on the upper surface. The second inclined surface is inclined in a direction perpendicular to the radial direction, and is configured to be slidable when both of them abut with the first inclined surface s1 of each partition plate 30 having substantially the same inclination angle. ing. In addition, two short auxiliary rotating arms 53a and 53a are projected with a circumferential interval therebetween, and each auxiliary rotating arm 53a is formed at a predetermined protruding position, and the upper surface thereof is similar to each other. A second inclined surface s2 is formed.

  The rotation arm 53 is sufficient if at least one of the rotation arms 53 is present. However, in order to rotate the rotation member B5 with more stable and less rattling, the auxiliary rotation arm is provided as described above in addition to the rotation arm. Good. The auxiliary rotating arm may be the same length as the rotating arm or may be a short one, and can be appropriately selected depending on the specified ejection amount. When an auxiliary turning arm having the same length as the turning arm is employed, a predetermined amount of ejection of a plurality of turns is performed at least while the turning arm is turned 360 °. Further, the number of auxiliary rotating arms 53a is not particularly limited, but about two to three seems to be appropriate. The projecting width is a projecting width that comes into contact with another partition plate without contacting the narrow partition plate 30a. Although not shown, a triangle that can be engaged with a triangular recess forming a third inclined surface of a ring member described later between the rotating arm 53 and the auxiliary rotating arm 53a and between the auxiliary rotating arm 53a. The protrusions may be arranged in a plurality of arcs. By providing these triangular projections, they always engage with the triangular recesses to maintain a stable state, and a smooth operation can be performed even during operation.

  The outer peripheral tip portion of the rotating arm 53 is positioned at a level facing the display window hole 24 of the cover cylinder peripheral wall 20, and an indication 54 indicating the end expressed by letters, symbols, patterns, solid coating, etc. is provided on the tip surface. It is provided by an appropriate method such as printing, sticking of a sealing material. Further, a protrusion 56 constituting an unlocking mechanism is erected at a predetermined position on the upper surface of the flange portion 51. Further, a pressing cylinder 58 constituting the forced lowering means is suspended from the inside of the lower cylindrical wall portion 52. Further, a coil spring B7 for constantly energizing the rotating member B5 upward and transmitting the push-down of the push button B9 between the lower surface of the rotating member B5 in the pressing cylinder 58 and the upper surface of the locking projection 40 of the nozzle B4. Is interposed. The coil spring B7 constitutes the forced lowering means.

  The ring member B8 is interposed between the push button B9 and the rotating arm 53 so as to prevent rotation and can be pushed down. The third inclined surface s2 slides on the lower surface of the ring plate-like base 80. The surface s3 is continuously provided in a ring shape, and a plurality of rotation prevention plates 81 project from the outer surface of the base 80 in the circumferential direction, and each rotation prevention plate 81 is fitted between the partition plates 30 to prevent rotation. The third inclined surface s3 is configured to be easily slid when the two inclined surfaces s2 are in substantially the same inclination angle and are in contact with each other.

  The push button B9 has a cylindrical shape mounted on the upper outer peripheral portion of the nozzle B4 so as to be rotatable and capable of pushing down the nozzle B4, and the upper cylindrical wall portion 50 of the rotating member B5 is interposed in the upper outer peripheral portion of the nozzle B4. The lower surface of the ring member B8 is placed in contact with the upper surface of the base member 80 via the hemispherical protrusion 90, and the annular protrusion 91 protruding from the lower end of the outer periphery is further provided in the window hole of the cover cylinder B2. It is configured to contact the lower surface of the cylindrical portion forming 22 to prevent upward slipping. Further, a projecting portion 92 that constitutes the unlocking mechanism is suspended from the lower surface of the inner periphery. The nozzle B4 can be pushed in via the ring member B8, the rotating member B5, and the coil spring B7.

  In the present invention, it is provided with a recognition system that recognizes the number of times the nozzle B4 is pushed down and recognizes the number of times the ejection liquid is ejected, that is, the ejection amount. The recognition system rotates the rotating member B5 by a predetermined angle by pushing the push button B9. And a lock mechanism that is linked to the rotation mechanism and prevents the stem 4 from being depressed when the push button B9 is depressed a predetermined number of times.

  The rotating mechanism includes the partition plate 30, the rotating member B5, and the ring member B8, and a third inclined surface s3 with which the second inclined surface s2 abuts when the push button is pressed down and an adjacent first inclined surface s1. The rotary arm 53 is configured so as to slide over and over the adjacent partition plate 30t. Referring to FIG. 5, FIG. 5 (a) shows a state where the rotating arm 53 is located between the partition plates adjacent to the wide portion 32. From this state, the ring member B8 and the push-button B9 are pushed down. When the rotating member B5 is pushed down against the upward biasing force of the coil spring B7 and the stem 4, the coil spring B7 pushes down the locking projection 40, thereby pushing down the nozzle B4 and ejecting a predetermined amount of liquid. The rotating arm 53 is initially guided by the adjacent partition plate 30t and descends. When the rotating arm 53 reaches the position shown in FIG. 5 (b), the rotating arm 53 is detached from the partition plate 30. Slides on the remaining third inclined surface s3, the rotating arm rotates to the position shown in FIG. 5 (c), and then when the push button B9 is released, the second inclined surface s2 moves on the first inclined surface s1. It slides (FIG. 5 (d)), and the turning arm 53 gets over the partition plate 30 and turns onto the next third inclined surface s3. At this time, the locked surface b is positioned above the locking surface a (FIG. 5 (e)).

  The locking mechanism is provided with a locking surface a at a predetermined position in the mounting member B1, and a locked surface b that contacts the locking surface a at a predetermined position of the rotating member B5 to prevent the rotating arm 53 from descending. . In the illustrated example, the upper surface of the rod-shaped protrusion 15 projecting at a predetermined position in the mounting member B1 is used as a locking surface a, and the lower surface of the convex portion 57 provided at a predetermined position on the outer surface of the lower cylindrical wall 52 of the rotating member B5 is covered. The locking surface b is used. When the rotary arm 53 rotates and moves to a predetermined position, even if the push button B9 is pressed, the locked surface b does not come into contact with the locking surface a, and as a result, the stem 4 is lowered. Therefore, it is possible to tactilely recognize that a predetermined amount of liquid has been ejected. It should be noted that a slight gap may be provided between the locking surface a and the locked surface b so that the stem is slightly pushed down to the extent that no liquid is ejected as shown in the example of the drawing. The operation becomes smoother due to the gap.

  In this example, a lock release mechanism for releasing the lock state by the lock mechanism is provided. This unlocking mechanism is configured such that after the ejection of a predetermined ejection amount is once completed by the locking mechanism, a predetermined ejection amount can be newly ejected from the beginning, and the rotating arm 53 is rotated to the position of the wide portion 32. When moved, the locked surface b is positioned above the locking surface a, and when the push button B9 is rotated with respect to the rotating member B5, the push button B9 is engaged with the rotating member B5 at a predetermined rotational position. The rotating member B5 is rotated by rotating the push button B9, and the locked surface b above the locking surface a is moved.

  The liquid ejector 1 configured as described above will be described by taking as an example a case where the stored liquid is a scalp medicine. For example, the push button B9 is pressed in contact with the scalp or the like, and the nozzle B4 is pushed in to eject the stored liquid. In this case, according to the present invention, as shown in FIG. 6, the downward step 41 of the locking projection 40 of the nozzle B4 is locked to the upper surface of the locking projection 29 of each elastic swing plate 27, and the coil spring B7 is compressed. In this state, the pressing cylinder 58 of the rotating member B5 is in contact with the sliding surface. Next, when the nozzle B4 is further pushed down, each elastic rocking plate 27 is tilted outward by the pressing cylinder 58 as shown in FIG. At this time, since the compression load of the coil spring B7 is configured to be larger than the upward biasing force of the stem 4, the nozzle B4 is pushed down to the position where the liquid is discharged at the lower end by the downward biasing force of the coil spring B7 in the compressed state. . In this case, the position where the liquid is discharged means that the fitted stem 4 is pushed down to the position where the liquid is discharged.

  Further, by releasing the pressing, the nozzle B4 rises and returns to the original state by the upward biasing force of the stem 4, and the rotating member B5 and the push button B9 are pushed up by the coil spring B7 to return to the original state. Each elastic rocking plate 27 returns to its original state by an elastic restoring force.

  If the same push-button B9 is pushed in appropriately at different locations, the rotating member B5 rotates a predetermined rotation angle each time and reaches a predetermined number of times, so that the rotating arm 53 is positioned above the locking surface a and beyond. Can not be pushed down. At this time, a display 54 such as an end character can be seen from the display window hole 24, and the end can be recognized visually. Further, in the next use, by rotating the push button B9 and engaging the protrusion 92 with the protrusion 56 of the rotating member B5, the rotating arm on the locking surface a is further rotated. 53 is displaced, and liquid can be ejected, and a predetermined amount of liquid can be ejected again.

DESCRIPTION OF SYMBOLS 1 ... Liquid ejector A ... Aerosol container body 2 ... Metering valve, 3 ... Body part, 4 ... Stem B ... Ejection tool
B1… Mounting member
10 ... fitting cylinder part, 11 ... base plate part, 12 ... recessed part, 13 ... connecting cylinder part,
14 ... concave groove for positioning, 15 ... rod-shaped protrusion, a ... locking surface, 16 ... guide tube,
17 ... Upward stepped portion, 18 ... Rib, 25 ... Inner peripheral wall, 26 ... Support plate portion, 27 ... Elastic rocking plate,
28 ... Sliding surface, 29 ... Locking projection
B2 ... Cover tube
20 ... peripheral wall, 21 ... top wall, 22 ... window hole, 23 ... fitting projection, 24 ... window hole for display
B3 ... Partition plate member
30 ... partition plate, s1 ... first inclined surface, 30a ... narrow partition plate, 30t ... adjacent partition plate,
31 ... Connecting plate, 32 ... Wide part
B4 ... Nozzle
40 ... locking projection, 41 ... downward step
B5… Rotating member
50 ... Upper cylindrical wall part, 51 ... Flange part, 52, 52a ... Lower cylindrical wall part, 53 ... Rotating arm,
s2 ... second inclined surface, b ... locked surface, 53a ... auxiliary rotating arm, 54 ... display, 55 ... cylinder part,
56 ... projection, 57 ... convex, 58 ... pressing cylinder
B7 ... Coil spring
B8 ... Ring member
80: base, s3: third inclined surface, 81: rotation prevention plate
B9 ... Push button
90 ... Hemispherical projection, 91 ... Ring projection, 92 ... Projection

Claims (5)

  A nozzle B4 fitted to a stem 4 projecting so as to be able to be pushed into the upper end of the aerosol container body A in an upward biased state, an attachment member B1 fixed on the aerosol container body A and through which the nozzle B4 is inserted, and an attachment member B1 Cover cylinder B2 which is fixed on top and protrudes the upper end of nozzle B4 from the top, cylindrical pushbutton B9 which is mounted on the outer periphery of nozzle B4 so as to be rotatable and capable of depressing nozzle B4, and depressing nozzle B4 A recognizing system for recognizing the number of rotations, the recognizing system rotating a rotating member B5 provided around the nozzle B4 and capable of being pushed down in an upward biased state by rotating the push button B9 by a predetermined angle; and The lock mechanism is connected to a rotation mechanism and prevents the stem 4 from being depressed when the push button B9 is depressed a predetermined number of times. The rotation mechanism is provided radially on the peripheral edge of the cover tube B2 and is provided on the lower surface. A plurality of partition plates 30 each provided with a first inclined surface s1, and a rotating arm 53 having a distal end portion positioned between the pair of partition plates 30 and a second inclined surface s2 provided on the upper surface are projected. A plurality of third inclined surfaces s3 in which the second inclined surface s2 slides on the lower surface are connected in an annular manner while preventing rotation and being interposed between the rotating member B5, the push button B9, and the rotating arm 53. A partition plate having a ring member B8 provided thereon and sliding on the third inclined surface s3 and the adjacent first inclined surface s1 with which the second inclined surface s2 abuts when the push button B9 is pressed down, and the rotating arm 53 is adjacent. The locking mechanism is configured to overcome 30t, and the locking mechanism is provided with a locking surface a at a predetermined position in the mounting member B1 and a locked surface b that contacts the locking surface a at a predetermined position of the rotating member B5. In the liquid ejector configured to prevent the moving arm 53 from descending, the nozzle B4 is temporarily locked at the predetermined position where the nozzle B4 is pushed down. After, the liquid ejector, characterized in that a forced lowering means for lowering the nozzle B4 to a position for ejecting the liquid.   The forcible lowering means is erected on the mounting member B1 and has a taper-like sliding surface 28 extending upward on the inner surface of the upper end portion, and a plurality of elastic swings capable of elastic swinging inward and outward directions. A plate 27 and a bottom surface of the rotating member B5 are suspended, a pressing cylinder 58 that slides on the sliding surface 28 and tilts each elastic rocking plate 27 outward, and a protruding portion at the lower outer periphery of the nozzle B4. Each of the elastic swing plates 27 includes a locking projection 40 that is temporarily locked, and a coil spring B7 that is interposed between the locking projection 40 and the rotating member B5. The compression load of B7 is set to be larger than the upward biasing force of the stem 4, and the nozzle B4 is lowered to the position where the liquid is discharged by the downward biasing force of the compressed coil spring B7 after each elastic rocking plate 27 is tilted by the pressing cylinder 58. The liquid ejector according to claim 1.   A locking projection 29 having a horizontal upper surface protrudes below the sliding surface 28 of each elastic rocking plate 27, and a downward stepped portion 41 of the locking projection 40 is formed on the upper surface of the locking projection 29. The liquid ejector according to claim 2, which is temporarily locked.   4. The liquid ejector according to claim 2, wherein four elastic rocking plates 27 are erected around the stem 4 at equal intervals. 5.   The liquid ejector according to any one of claims 1 to 4, further comprising a lock release mechanism that releases a locked state by the lock mechanism.