JP6382149B2 - Trigger type ejector - Google Patents

Description

  The present invention relates to a trigger type ejector that ejects a content liquid contained in a container by pulling (checking) an operation lever serving as a trigger.

  Conventionally, in containers that contain liquids such as detergents, mold removers, clothing pastes, residential waxes, hair styling agents, and fragrances, the pump provided inside is driven by the operation of the operation lever. A trigger-type ejector that ejects the content liquid from the tip of the nozzle toward the outside is used, thereby enabling efficient supply of the content liquid.

  As such a trigger type ejector, for example, a base attached to the mouth of the container, a pump provided inside the base and having a stem biased upward, and rotatable with respect to the base The operation lever provided and a nozzle extending forward above the stem are provided. The stem is pushed down together with the nozzle by a check operation of the operation lever, and the content liquid pumped through the stem and the nozzle by the action of the pump is supplied. A configuration is known in which a mist is ejected from an ejection port provided at the tip of a nozzle (see Patent Document 1).

JP 2002-11392 A

  In such a trigger type ejector, if the nozzle is long, the nozzle outlet at the tip of the nozzle can be easily brought close to the object, and the content liquid can be easily sprayed onto the object. In addition, when the nozzle is long, the distance from the operation lever to the jet outlet becomes long, so that the jetted liquid is difficult to adhere to the hand holding the container.

  However, when the nozzle is long, the space occupied by the entire ejector becomes large, which causes a problem that it is difficult to store. In addition, as in the trigger type ejector described in Patent Document 1, if the operation lever can always be checked, the content liquid may be unintentionally ejected due to an erroneous operation or the like.

  Therefore, the present invention has a configuration in which the nozzle does not get in the way during storage, makes it easy to spray the content liquid accurately on the object, and the ejected content liquid does not easily adhere to the hand, and the contents due to an erroneous operation, etc. It aims at proposing the trigger type ejector which prevented the ejection of the liquid.

The present invention is made in order to solve the above-mentioned problem, and the trigger type ejector of the present invention includes a base attached to the mouth portion of a container that contains the content liquid,
An operation lever that is rotatably held via a pivot provided on the base;
A pump that is arranged inside the base and sucks, pressurizes, and pumps the content liquid in the container by a check operation of the operation lever;
An attachment part attached to a stem provided in the pump, and a connecting member having a cylindrical nozzle accommodating part continuous above the attachment part;
A nozzle that is slidably disposed back and forth inside the nozzle housing portion, and that ejects the content liquid that has been pumped by the pump and passed through the communication hole provided in the nozzle housing portion from a jet port provided at the tip. ,
The communication hole provided in the nozzle housing part can be opened and closed by sliding the nozzle back and forth.

  In the trigger type ejector of the present invention, the nozzle protrudes downward from the nozzle, and when the nozzle is in the rear position, the operation lever is checked by engaging with the base. It is preferable to have a stopper portion that restricts and allows the operation lever to be checked when the nozzle is in the forward position and the engagement with the base is released.

  Further, in the trigger type ejector of the present invention, the stopper portion has a curved portion that is arranged along the outer surface of the mounting portion of the connecting member when the nozzle is in the rear position, It is preferable that the downward movement of the nozzle, the connecting member, and the stem is restricted by the lower surface of the curved portion coming into contact with the upper surface of the base.

  In the trigger type ejector of the present invention, it is preferable that the outer surface of the connecting member has a protrusion disposed above the curved portion when the nozzle is in the rear position.

  Further, in the trigger type ejector according to the present invention, the nozzle has a nozzle operation part protruding upward from the nozzle, and the nozzle can be moved back and forth by moving the nozzle operation part back and forth. It is preferable to comprise.

  Moreover, in the trigger type ejector of the present invention, it is preferable that the stopper part and the nozzle operation part are formed integrally with the nozzle.

  According to the present invention, the nozzle is not obstructed during storage, the content liquid is easily sprayed onto the object accurately, and the ejected content liquid is difficult to adhere to the hand. It is possible to provide a trigger-type ejector that prevents the ejection of gas.

It is a side view which shows one Embodiment of the trigger type ejector of this invention in a cross section. FIG. 2 is a side view showing a state in which the nozzle is pulled forward in the trigger type ejector of FIG. 1. In the trigger type ejector of FIG. 1, it is a figure which shows the state which pulled out the nozzle and checked the operation lever. (A) is a front view which shows the nozzle in the trigger type ejector of FIG. 1, (b) is a side view, (c) is sectional drawing which shows the AA cross section in FIG.4 (b). is there.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. The trigger type ejector of the present invention can be used for containers containing content liquids such as detergents, mold removers, clothing pastes, residential waxes, hair styling agents, and fragrances. The type is not particularly limited.

  As shown in FIG. 1, the trigger type ejector 1 of the present embodiment is rotatably held via a base 20 that is detachably attached to the mouth portion 11 of the container 10 and a pivot 21 provided on the base 20. Operating lever 30, pump 40 disposed inside base 20, connecting member 50 mounted on stem 41 of pump 40, and nozzle 60 mounted slidably on connecting member 50. Prepare.

  The container 10 is a bottle having a cylindrical mouth portion 11 having an open upper end, a body portion 12 connected to the mouth portion 11, and a bottom portion (not shown) that closes the lower end of the body portion 12. It is a storage space for storing the content liquid.

  The base 20 is detachably screwed to the outside of the mouth part 11, a shoulder part 23 that is connected to the upper part of the attachment cylinder 22 and gradually decreases in diameter toward the upper part, and above the shoulder part 23. And a continuous upper cylinder portion 24 having a small diameter. A pair of support walls 25 are provided behind the upper cylinder portion 24 so as to face each other with a gap therebetween, and the pair of support walls 25 are connected to each other by a rear wall 26. Each of the outer surfaces of the pair of support walls 25 is provided with a projecting pivot 21 for holding the operation lever 30 in a rotatable manner. In the present embodiment, the mounting cylinder 22 is configured to be screw-engaged with the mouth portion 11, but is not limited thereto, and may be configured to be engaged by undercut.

  The operation lever 30 includes a pair of side walls 31 opposed to each other with a gap, a top wall 32 that connects the pair of side walls 31 from the rear side to the upper side of the operation lever 30, and the front side of the operation lever 30. And a front wall 33 connecting the pair of side walls 31. A window hole 34 through which the nozzle 60 protrudes is formed between the top wall 32 and the front wall 33. A shaft hole 35 that is pivotally supported on the pivot 21 of the base 20 and rotatably holds the operation lever 30 is provided on the inner surface of the side wall 31.

  The pump 40 includes a cylindrical cylinder body 42 that is disposed inside the mouth portion 11 and hangs down in the container 10. Inside the cylinder body 42, a piston 43 that moves up and down inside the cylinder body 42, and a piston 43 is provided with a seal cylinder 44 and a poppet valve body 45 which is disposed inside the seal cylinder 44 and extends downward. A stem 41 is fitted and held above the seal cylinder 44, and the stem 41 is held by a retaining cylinder 46 fitted to the upper end portion of the cylinder body 42. A suction pipe 47 is fitted and held at the lower end of the cylinder body 42. The stem 41 is biased upward via a seal cylinder 44 by a spring 48 provided inside the cylinder body 42.

  Here, the poppet valve body 45 functions as a check valve whose lower end opens and closes the opening of the valve seat 41 a provided below the cylinder body 42, and absorbs the content liquid via the suction pipe 47. When opening, the opening is opened, and when the sucked content liquid is pumped to the stem 41 side, the opening is closed.

  An annular flange portion 42 a that protrudes outward is provided at the upper end portion of the cylinder body 42, and the flange portion 42 a is a holding cylinder portion 23 a that hangs down from the upper end of the mouth portion 11 of the container 10 and the inner surface of the shoulder portion 23 of the base 20. It is sandwiched between. A sealing member (packing) 49 is disposed between the flange portion 42 a and the upper end surface of the mouth portion 11.

  The structure of the pump 40 is not particularly limited as long as the pump 40 is configured to suck, pressurize, and pump the content liquid in the container 10 by checking the operation lever 30. It can be appropriately selected and used.

  The connecting member 50 includes a cylindrical mounting portion 51 that fits above the stem 41, and a cylindrical nozzle housing portion 52 that is provided above the mounting portion 51 so that the mutual axes are substantially orthogonal to each other. In the present embodiment, the extending direction (axial direction) of the nozzle accommodating portion 52 is slightly inclined with respect to the direction perpendicular to the axial line of the mounting portion 51 so that the front is upward, but is not limited thereto. However, the extending direction of the nozzle accommodating portion 52 can be set as appropriate. The mounting part 51 and the nozzle accommodating part 52 are connected via the communication hole 53 provided in the connection part. On the outer surface of the nozzle housing portion 52, pressed projections 54 are provided on both sides so as to face outward. The pressed projection 54 engages with a pressing portion formed in, for example, a convex shape or a concave shape on the inner surface of the side wall 31 of the operation lever 30. When the operating lever 30 is depressed, the pressed projection 54 is pushed down by the pressing portion. A vertical rib-shaped auxiliary protrusion 55 is provided below the pressed protrusion 54.

  The nozzle 60 is slidably arranged back and forth along the axial direction of the nozzle housing portion 52 inside the nozzle housing portion 52. Here, FIG. 1 shows a state in which the nozzle 60 is in the rear position with respect to the connecting member 50, and FIG. 2 shows a state in which the nozzle 60 is in the front position. The nozzle 60 includes a nozzle main body portion 61, a stopper portion 62 that protrudes downward from the outer surface of the nozzle main body portion 61, and a nozzle operation portion 63 that protrudes upward from the outer surface of the nozzle main body portion 61.

  The nozzle main body 61 is disposed inside the nozzle accommodating portion 52, and the tip portion projects forward from the window hole 34 of the operation lever 30. A nozzle 64 is formed at the tip of the nozzle main body 61, and a content liquid passage 65 connected to the nozzle 64 is formed inside the nozzle main body 61. As shown in FIG. 1, a nozzle cover 80 that closes the ejection port 64 can be attached to the tip of the nozzle body 61.

  Here, FIG. 4A is a front view showing the nozzle 60 of this embodiment as a single unit, FIG. 4B is a side view, and FIG. 4C is A- of FIG. It is sectional drawing which shows A cross section. A pair of circumferential grooves 67 into which an O-ring 66 (see FIG. 1) that is a sealing member fits is provided on the outer surface of the nozzle body 61 with a space in the front and rear, and between the pair of circumferential grooves 67. Is formed with a content liquid circumferential groove 68 serving as a passage for the content liquid. A through hole 69 is provided in the inner surface of the content liquid circumferential groove 68, and the content liquid circumferential groove 68 and the content liquid passage 65 communicate with each other.

  As shown in FIG. 1, the outer surface of the nozzle body 61 is disposed above the communication hole 53 of the connecting member 50 when the nozzle 60 is in the rear position. Further, as shown in FIG. 2, in the state where the nozzle 60 is in the forward position, the content liquid circumferential groove 68 is disposed above the communication hole 53 of the connecting member 50, so that the content liquid that has passed through the stem 41 is communicated. 53, the content liquid circumferential groove 68, and the through-hole 69 can be moved to the content liquid passage 65.

  A pair of upper and lower elastic pieces 71 are formed at the rear end of the nozzle body 61. At the tip of the elastic piece 71, a claw portion 72 protruding from the outer surface is provided. With such a configuration, when the nozzle 60 is assembled to the connecting member 50, the elastic piece 71 is elastically deformed inward so that the rear end of the nozzle main body portion 61 can be easily inserted into the nozzle housing portion 52. After insertion, the elastic piece 71 that has been elastically deformed is restored, the claw portion 72 engages with the rear end of the nozzle housing portion 52, and the nozzle 60 is held against the connecting member 50.

  As shown in FIGS. 4A and 4B, the stopper portion 62 includes a plate-like portion 62a that protrudes downward from the outer surface of the nozzle main body portion 61 and bends backward, and a rear end of the plate-like portion 62a. And a curved portion 62b connected to the portion. As shown in FIG. 4C, the curved portion 62b is formed in a semi-annular shape in plan view. As shown in FIG. 1, in a state where the nozzle 60 is in the rear position, the curved portion 62 b is disposed close to the outer surface of the mounting portion 51 of the connecting member 50. In the state shown in FIG. 1, the bending portion 62 b is disposed above the upper cylinder portion 24 of the base 20 and below the auxiliary protrusion 55.

  As shown in FIGS. 4A and 4B, the nozzle operation portion 63 includes a plate-like curved piece 63 a that protrudes upward from the outer surface of the nozzle main body portion 61 and extends rearward while being curved. It has the connection rib 63b which connects the piece 63a and the nozzle main-body part 61. At the rear end portion of the curved piece 63a, a finger hook portion 63c having a plurality of anti-slip protrusions on the outer surface is provided.

  As shown in FIG. 1, the finger hanging portion 63 c of the curved piece 63 a is disposed along the upper surface of the top wall 32, and the nozzle 60 can be moved forward and backward by moving the finger hanging portion 63 c back and forth. The connection rib 63b is provided with a support protrusion 63d that protrudes rearward. When the nozzle 60 is in the rear position, the front end of the top wall 32 is sandwiched between the support protrusion 63d and the curved piece 63a. . Thereby, the play with respect to the top wall 32 of the nozzle operation part 63 can be suppressed. Moreover, since the window hole 34 of the top wall 32 can be covered by providing the nozzle operation part 63, the deterioration of an external appearance can be prevented.

  Here, as shown in FIG. 1, when trying to check the operation lever 30 in a state where the nozzle 60 is in the rear position, the lower surface of the curved portion 62 b of the stopper portion 62 is connected to the upper cylinder portion 24 of the base 20. Since the lower surface of the nozzle 60 abuts on the upper surface and is restricted, the downward movement of the connecting member 50 that holds the nozzle 60 is also restricted. As a result, as the downward movement of the connecting member 50 is restricted, the checking operation of the operation lever 30 is restricted.

  In the present embodiment, an auxiliary protrusion 55 disposed above the curved portion 62b of the stopper portion 62 is further provided. When the operation lever 30 is to be checked, the upper surface of the curved portion 62b is connected to the curved portion 62b. The member 50 is configured to contact the lower surface of the auxiliary protrusion 55 of the member 50. That is, the curved portion 62 b of the stopper portion 62 is configured to be sandwiched between the upper tube portion 24 of the base 20 and the auxiliary protrusion 55 in the vertical direction. Thereby, the downward movement of the connecting member 50 can be directly regulated by the stopper portion 62, and the effect of regulating the check of the operation lever 30 can be further enhanced.

  When the content liquid is ejected using the trigger type ejector 1 of the present embodiment, the nozzle cover 80 is removed from the non-use state shown in FIG. 1, and the nozzle 60 is moved forward. As shown in FIG. 2, when the nozzle 60 moves forward, the stopper portion 62 moves forward, and when the curved portion 62b moves forward from the upper tube portion 24 of the base 20, the stopper portion 62 and The engagement with the base 20 is released. As the nozzle 60 moves forward, the engagement between the curved portion 62b and the auxiliary projection 55 is also released. Further, as the nozzle 60 moves forward, the nozzle operation portion 63 also moves forward, and the engagement between the support protrusion 63d and the top wall 32 is released. Thereby, the check operation of the operation lever 30 becomes possible. As shown in FIG. 3, when the operating lever 30 is depressed, the pressing portion provided on the inner surface of the side wall 31 rotated about the pivot 21 pushes down the pressed protrusion 54 of the connecting member 50 and operates integrally with the connecting member 50. The nozzle 60 and the stem 41 are pushed down. When the stem 41 is pushed down, the inside of the cylinder body 42 is pressurized, and the pumped content liquid passes through the stem 41, the communication hole 53, the content liquid circumferential groove 68, the through hole 69, and the content liquid passage 65. It is ejected from the ejection port 64.

  In the trigger type ejector 1 of the present embodiment having the above-described configuration, the communication hole 53 provided in the nozzle housing portion 52 can be opened and closed by sliding the nozzle 60 back and forth. It is possible to switch from the non-use state to the use state with a simple operation. Further, when not in use, the nozzle 60 is arranged at the rear position as shown in FIG. 1, and the operation of the operation lever 30 is restricted by the action of the stopper portion 62. Can be prevented. In addition, since the nozzle 60 is configured to be slidable back and forth with respect to the connecting member 50 and used when the nozzle 60 is extended forward, it is easy to accurately spray the content liquid onto the object, and the ejected content liquid Is difficult to adhere to the hand. Further, when not in use, the nozzle 60 is placed in the rear position, that is, the nozzle 60 is contracted, so that the nozzle 60 is unlikely to become an obstacle during storage.

  Moreover, in this embodiment, since the stopper part 62 with respect to the base 20 can be simultaneously released by the operation of moving the nozzle 60 forward, it is possible to switch from the non-use state to the use state with a simple operation. 2 and 3, since the stopper portion 62 is held by the nozzle body portion 61, there is no possibility of losing the stopper portion 62.

  In the present embodiment, since the nozzle operation unit 63 is provided, the nozzle 60 can be moved back and forth without directly gripping the nozzle body 61, so that the operability is excellent and the nozzle body 61 remains in the nozzle body 61. There is no risk that the content liquid will adhere to the hand.

  Further, in the present embodiment, since the stopper portion 62 and the nozzle operation portion 63 are formed integrally with the nozzle body portion 61, the number of parts can be reduced as compared with the case where they are formed separately. .

  Further, by providing the nozzle cover 80, it is possible to prevent unintended ejection and dripping of the content liquid. It is also possible to hold the nozzle cover 80 and move the nozzle 60 back and forth, and according to this, there is no possibility that the content liquid remaining on the nozzle 60 adheres to the hand.

  In the above-described embodiment, the stopper portion 62 and the nozzle operation portion 63 are formed integrally with the nozzle main body portion 61. However, the present invention is not limited to this, and the structure is formed separately and assembled after forming. Also good. As a method of assembling the stopper portion 62 molded as a separate body to the nozzle main body portion 61, it is possible to set as appropriate, such as a method of engaging by unevenness or a method of providing an opening on one side and fitting the other into the opening. it can. Similarly, even when the nozzle operation part 63 is molded as a separate body, the method of assembling the nozzle body part 61 can be set as appropriate.

  Alternatively, the stopper portion 62 and the nozzle operation portion 63 may be integrally formed and assembled to the nozzle body portion 61. In this case, the method of assembling the stopper portion 62 and the nozzle operation portion 63 to the nozzle main body portion 61 is a method of engaging with the unevenness as described above, a method of providing an opening in one of them, and a method of fitting the other into the opening, etc. In addition, a configuration may be adopted in which a cylindrical member is interposed between the stopper portion 62 and the nozzle operation portion 63 and the nozzle main body portion 61 is engaged.

DESCRIPTION OF SYMBOLS 1 Trigger type ejector 10 Container 11 Mouth part 12 Trunk part 20 Base 21 Axis 22 Mounted cylinder 23 Shoulder part 23a Holding cylinder part 24 Upper cylinder part 25 Support wall 26 Rear wall 30 Operation lever 31 Side wall 32 Top wall 33 Front wall 34 Window Hole 35 Shaft hole 40 Pump 41 Stem 42 Cylinder body 43 Piston 44 Seal cylinder 45 Poppet valve body 46 Retaining cylinder 47 Suction pipe 48 Spring 49 Sealing member 50 Connecting member 51 Mounting part 52 Nozzle housing part 53 Communication hole 54 Pressed Protrusion 55 Auxiliary protrusion (protrusion)
60 Nozzle 61 Nozzle body part 62 Stopper part 62a Plate-like part 62b Curved part 63 Nozzle operation part 63a Curved piece 63b Connecting rib 63c Finger hook part 63d Support protrusion 64 Jet outlet 65 Content liquid passage 66 O-ring 67 Circumferential groove 68 Content liquid circumferential groove 69 Through-hole 71 Elastic piece 72 Claw 80 Nozzle cover

Claims (5)

A base attached to the mouth of a container containing the content liquid;
An operation lever that is rotatably held via a pivot provided on the base;
A pump that is arranged inside the base and sucks, pressurizes, and pumps the content liquid in the container by a check operation of the operation lever;
An attachment part attached to a stem provided in the pump, and a connecting member having a cylindrical nozzle accommodating part continuous above the attachment part;
A nozzle that is slidably disposed back and forth inside the nozzle housing portion, and that ejects the content liquid that has been pumped by the pump and passed through the communication hole provided in the nozzle housing portion from a jet port provided at the tip. ,
By sliding the nozzle back and forth, the communication hole provided in the nozzle housing portion can be opened and closed ,
The nozzle protrudes downward from the nozzle, and when the nozzle is in the rear position, the check operation of the operation lever is restricted by engagement with the base, and when the nozzle is in the front position, The trigger type ejector which has a stopper part which cancels | releases the engagement with respect to the said base and enables the check operation of the said operation lever . The stopper portion has a curved portion arranged along the outer surface of the mounting portion of the connecting member when the nozzle is in the rear position, and the lower surface of the curved portion abuts on the upper surface of the base. , the nozzle, the connecting member, and restricts the downward movement of the stem, the trigger type ejector according to claim 1. 3. The trigger type ejector according to claim 2 , wherein the outer surface of the connecting member has a protrusion disposed above the curved portion when the nozzle is in a rear position. The nozzle has a nozzle operating section projecting upward from the nozzle, formed by movable in the nozzle back and forth by moving back and forth the nozzle operating section, any one of claims 1 to 3 The trigger type ejector according to one item. The trigger type ejector according to claim 4 , wherein the stopper portion and the nozzle operation portion are formed integrally with the nozzle.

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