JP2011057294A - Trigger type ejector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a trigger type ejector capable of changing a range of its ejection in response to its amount of ejection. <P>SOLUTION: A trigger type ejector 100 includes a depressing member 410 having a turning portion 411 with an inner structure similar to that of an ejection nozzle and held immovably to a spin element and an arm 412 integrally arranged to the turning portion 411, wherein the depressing member 410 restricts an amount of retraction of an operating lever 140 under an operation in which the front end rear surface 412e of the arm 412 is turned to a position where it is ranged with a front surface 140f of the operating lever 140 and further positioned at the front surface 140f of the operating lever 140 to depress the operating lever 140 in its retracting direction. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a trigger type ejector including a pump that alternately and repeatedly checks an operation lever and releases the check to suck and pressurize the contents.

  The trigger type sprayer is sprayed with the contents from the spray nozzle (mold remover, residential detergent, residential wax, clothing finish, clothing paste, hairdressing cosmetics, insecticide, etc.) There is something that jets in the form of foam, for example, in the ejector that jets the contents in foam form, a collision plate that can be opened and closed is provided on the front surface of the jet nozzle, and the contents are always foamed sufficiently and jetted, There is one that switches the injection mode between the case of injection without excessive foaming (see, for example, Patent Document 1).

JP-A-8-71463

  However, in such a conventional trigger type ejector, although the injection form can be switched, the injection amount is always constant regardless of opening and closing of the collision plate, and the injection range when the collision plate is closed is wide. For this reason, when it is desired to focus a small amount of content on a specific point in a focused manner, it is difficult to sufficiently perform its function.

  This invention is made | formed in view of such a fact, and it aims at providing the trigger type ejector which can change the injection range with injection quantity.

  The present invention includes an injection nozzle having a foam generating unit for injecting the contents into a foam shape, a body having a feeding path connected to the injection nozzle and a pump for controlling suction and pressurization of the contents, In a trigger type ejector comprising an operation lever that is swingably held by the body and operates the pump by checking and releasing the base, and a base cap that holds and holds the body at the mouth of the container. Switching means is provided for changing the injection range by switching the check amount and limiting the amount of ejection of the contents, and the switching means is rotatably held with respect to the body or the spin element provided in the body. And the arm portion provided integrally with the rotation portion, and the tip of the arm portion is rotated to a position aligned with the front surface of the operation lever. The positioned front that presses the operating lever in 牽曳 direction, is characterized in that a pressing member for restricting the 牽曳 amount of the operation lever.

  The trigger type ejector of the present invention is a trigger type ejector in which each component is assembled as a separate part configuration as described in the form of the present invention described later and the drawings, for example, a body and an operation lever or Also included is a trigger type ejector in which several components are integrally molded and assembled with other components, such as integrally molding the body and the base cap.

  The switching means may rotate integrally with the injection nozzle. Further, the switching means may be rotated between the spray nozzle and the body. Furthermore, the said rotation part shall be integrally provided with the lock part which contacts the inner-wall edge of an operation lever and prohibits the check operation.

  In addition, the front surface of the operation lever in the present claims means not only the direct front surface of the operation lever but also includes, for example, the front surface when the engaging portion is formed so as to protrude from the side surface of the operation lever.

  According to the present invention, the trigger type ejector is provided with the switching means for switching the amount of check of the operation lever to limit the amount of ejection of the contents and changing the injection range. The discharge amount and pressure of the content pumped from the pump that operates by the release to the feed path are reduced, and the impact of the content colliding with the bubble generating part such as the back of the collision plate provided in the injection nozzle is reduced. Therefore, a small amount of contents can be injected in a pinpoint manner to a specific location without spreading over a wide range.

  In the present invention, the switching means is a pressing member that is positioned on the front surface of the operation lever and presses the operation lever toward the check-in direction. Even when a member for restricting the amount of check of the operation lever cannot be provided between them, the amount of check of the operation lever can be reliably restricted.

It is a longitudinal cross-sectional view which shows the trigger type ejector which is the reference technique of this invention in the state which exists in the position where a slide member guarantees the total amount of checks. In the reference technology, it is principal part sectional drawing shown in the state which has a slide member in the position which restrict | limits the amount of checks. It is a perspective view which shows the operation lever and slide member of the reference technique from the back. It is a longitudinal cross-sectional view which shows the 2nd reference technique of this invention. It is a perspective view explaining the check operation in the reference technology. It is another perspective view explaining the check operation in the reference technology. It is one form of this invention, Comprising: It is a principal part perspective view explaining the check operation | movement. It is a principal part perspective view explaining the check operation in the form. It is another principal part perspective view explaining the check operation in the form.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

  FIG. 1 and FIG. 2 are respectively a longitudinal sectional view and a slide showing a trigger type ejector 200 which is the first reference technique of the present invention in a state where a slide member 150 described later is in a position where a total check amount is guaranteed. FIG. 3 is a cross-sectional view of the main part shown in a state where the member 150 is in a position where the amount of check is limited, and FIG. 3 is a perspective view showing the operation lever 140 and the slide member 150 provided in the trigger type ejector 200 from the back side. .

  In FIGS. 1 and 2, reference numeral 110 denotes an injection nozzle connected to a feed path 121 formed in the body 120 via a spin element 130. The injection nozzle 110 includes a nozzle base 111 attached to the spin element 130, a collision plate 112 attached to the tip of the nozzle base 111, and a lock portion that is integrally attached to the nozzle base 111 and prohibits the check of the operation lever 140 described later. 113.

  The nozzle base 111 has an opening 111 a that forms a swirl flow forming path and is connected to the swirl flow forming path. The impingement plate 112 forms a diffusion chamber 114 for diffusing the contents injected through the swirl flow forming path between the impingement plate 112 and an opening 112 a connected to the diffusion chamber 114.

  As a result, in the injection nozzle 110, after the contents swirling with the spin element 130 diffuse as spray particles in the diffusion chamber 114, a part of them collides with the back surface of the collision plate 112, and the diffusion chamber 114. The spray particles become finer particles and are agitated together with the air, so that they become bubbles in the diffusion chamber 114 and are ejected from the ejection holes 112a.

  As shown in FIG. 1, the body 120 includes a feed path 121 and a pump P that controls suction and pressurization of contents. The pump P includes a return spring 124 disposed between a cylinder 122 connected to the feeding path 121 through an opening 120a and a piston 123 slidable in the cylinder 122.

  Reference numeral 140 denotes an operation lever that is swingably held by a pin portion 120 p provided on the body 120, and a part of the rear surface thereof is always in contact with the piston 123. Thus, the pump P can suck and press the contents by the reaction force of the return spring 124 caused by checking the operation lever 140 and releasing it.

  Further, as shown in FIG. 3, three inner walls 142, 143, and 144 are integrally formed on the back surface 141 of the operation lever 140, and the open space defined by these inner walls has a longitudinal direction of the operation lever 140. The slide member 150 is provided so as to come into contact with the body 120 (cylinder 122) when the operation lever 140 is checked according to the amount of slide.

  As shown in FIG. 3, the slide member 150 has a contact portion 152 projecting toward the body 120 on the back surface 151 and a grip portion 153 used when the slide member 150 is slid. The slide member 150 is provided with a guide wall 154 that slides with respect to the inner wall 142 of the operation lever 140 on one side surface, and the other side surface is released to form an edge 150e. As a result, when the slide member 150 is attached from the back surface 141 of the operation lever 140, the back surface 151 of the slide member 150 is undercut fitted by the overhang portions 143p and 145 provided on the inner wall 143 of the operation lever 140. 150 is slidably held and fixed with respect to the operation lever 140.

  Although not shown, a positioning means Po for positioning the slide member 150 may be provided between the operation lever 140 and the slide member 150. The positioning means Po can be configured by providing a convex portion on one of the operation lever 140 and the slide member 150 and providing a concave portion into which the convex portion is fitted or a second convex portion that can be moved over. In this case, it is always possible to appropriately position the operation lever 140.

  On the other hand, a first check valve (elastic valve) 125 that is released by the check of the operation lever 140 is provided inside the feed path 121 connected by the cylinder 122 and the opening 120a and extending in the vertical direction, and the operation lever. An intake 127 having a second check valve (ball valve) 126 that is released by releasing the check 140 is provided. The intake 127 has an opening 127 a connected to the feed path 121 extending in the horizontal direction and an opening 127 b connected to the opening 120 a of the cylinder 122, and is undercut fitted near the lower end of the body 120.

  Reference numeral 160 denotes a base cap that is rotatably held with respect to the body 120 via the flange 127 f of the intake 127. The base cap 160 is a so-called screw cap, and fixes and holds the body 120 in the mouth portion 11 of the container.

  In other words, the trigger type ejector 200 includes a body 120 having a feed path 121 connected to the ejection nozzle 110 and having a pump P that controls suction and pressurization of contents, and is held by the body 120 so as to be swingable. An operation lever 140 that operates the pump P by dredging and release, a slide member 150 that slides the operation lever 140, and a base cap 160 that fixes and holds the body 120 to the mouth portion 11 of the container.

  According to the trigger type ejector 200, when the slide member 150 is slid to the vicinity of the lowest point of the operation lever 140 as shown in FIG. 1, the contact portion 152 of the slide member 150 causes the body when the operation lever 140 is checked. 120 (the opening edge 122e of the cylinder 122 in this reference technique) does not come into contact with the operation lever 140 when the injection nozzle 110 is rotated around the spin element 130 and the lock portion 113 is released from the opening edge 122e of the cylinder 120. All checks can be made without limiting the amount.

  In this case, the piston 123 is pushed into the cylinder 122 against the elastic force of the return spring 124 by all checks of the operation lever 140 to pressurize the contents in the cylinder 122 and feed it to the feed path 121 to inject it. The maximum amount of the foamed contents from 110 can be sprayed over a wide range, while the piston 123 is restored to the initial position by the elastic force of the return spring 124 by releasing the check of the operation lever 140 and the cylinder from the dip tube 128 to the cylinder. The contents can be sucked into 122.

  On the other hand, when the slide member 150 is slid toward the pin portion 120p as shown in FIG. 2, the contact portion 152 of the slide member 150 is aligned with the opening edge 122e of the cylinder 122, and the operation lever 140 is checked. At that time, since the contact with the opening edge 122e of the cylinder 122 occurs, the amount of check of the operation lever 140 is limited.

  According to such a configuration, the slide member 150 restricts the amount of check of the operation lever 140, thereby reducing the discharge amount of the content pumped from the cylinder 122 to the feed path 121 and the pressure thereof. Since the influence of the content colliding with the back surface is reduced, a small amount of foam-like content can be injected in a pinpoint manner to a specific location without spreading over a wide range.

  In the case of this reference technique, when the trigger type ejector 200 is not used, the injection nozzle 110 is rotated as shown in FIG. 1 so that the lock portion 113 is located between the operation lever 140 and the opening edge 122e of the cylinder 122. If the control lever 140 is disposed, the checking operation of the operation lever 140 is prohibited, so that erroneous injection when not in use can be prevented. In addition to the position shown in FIG. 1 described above, the position of the slide member 150 at the time of locking is not only the position shown in FIG. 2 but also the shape of the slide member 150 with a part of the contact portion 152 cut out and the guide wall 154 only on one side. With the above-described shape, the lock portion 113 can be disposed between the operation lever 140 and the opening edge 122e of the cylinder 122.

  FIG. 4 is a longitudinal sectional view showing a second reference technique of the present invention, and FIGS. 5 and 6 are perspective views for explaining a check operation of the reference technique. In the following description, the same parts as those in the above-described reference technique are denoted by the same reference numerals and the description thereof is omitted.

  In this reference technique, a rotating member 230 that rotates between the injection nozzle 110 and the body 120 is provided. The rotating member 230 includes a rotating portion 231 that is fixed and held so as to be rotatable with respect to the spin element 130, and an arm portion 232 provided integrally with the rotating portion 231.

  As shown in FIGS. 5 and 6, the arm portion 232 has a front end back surface 232 e slidably contacting the opening edge 122 e of the cylinder 122, while the front end surface forms steps 233 and 234. Reference numeral 233 constitutes a lock portion that comes into contact with the inner wall edge 140e of the operation lever 140 and prohibits its check-in operation, while the step 234 is located farther from the operation lever 140 than the step 233 and the operation lever 140 The contact part which restricts check is comprised. Thereby, the rotation member 230 is rotatably held between the injection nozzle 110 and the body 120. In addition to the rotation member 230 being fixedly held between the injection nozzle 110 and the body 120 so as to be rotatable, the unevenness described above is not shown between the body 120 and the spin element 130. Positioning means Po including a fitting portion, first and second convex portions that can be crossed over, or a protrusion and a groove is provided.

  According to such a configuration, when the trigger type ejector 200 is not used, the rotating member 230 is rotated to a position where the arm portion 232 enters the operating lever 140 and the lock portion 233 is moved to the operating lever 140 as shown in FIG. If the inner wall edge 140e is brought into contact with the inner wall edge 140e, the check operation of the operation lever 140 is prohibited, so that erroneous injection when not in use can be prevented.

  And when it is in use, it can switch to two injection forms. For example, when it is desired to inject a small amount of contents in a pinpoint manner focusing on a specific location, the contact portion 234 aligns the rotating member 230 with the inner wall edge 140e of the operation lever 140 as shown in FIG. When the operation lever 140 is rotated to the position, the lock portion 233 of the rotation member 230 is released, but the inner wall edge 140e of the operation lever 140 contacts the contact portion 234 when the operation lever 140 is depressed. The amount of checks can be limited. Further, when it is desired to diffuse the maximum amount of contents over a wide range, if the rotating member 230 is further rotated in the direction in which the contact portion 234 is away from the operating lever 140 from the position of FIG. Since the operation lever 140 is not contacted with the contact portion 234 of the rotating member 230, the operation lever 140 can be fully checked without restricting the amount of check.

  In this embodiment, as shown in a region A in FIGS. 5 and 6, alignment marks that define the injection form are provided on the side surface of the rotating portion 231 of the rotating member 230 and the exterior surface of the body 120. ing. Moreover, although the rotation part 231 rotates with respect to the spin element 130, this may be fixedly held so that rotation around the body 120 adjacent to the injection nozzle 110 is possible.

  On the other hand, FIGS. 7-9 is one form of this invention, Comprising: It is a principal part perspective view explaining the check operation | movement, The part same as the above-mentioned reference technology is abbreviate | omitted with the same code | symbol. .

  In this embodiment, instead of the above-described slide member 150 and rotating member 230, a pressing member 410 is provided integrally with the injection nozzle. The pressing member 410 includes a rotating portion 411 that is fixed and held so as to be rotatable with respect to the spin element 130, and two arm portions 412 and 413 provided integrally with the rotating portion 411. The rotation part 411 constitutes an injection nozzle having an injection hole 410a connected to the same internal structure as the injection nozzle 110 described above. Accordingly, the pressing member 410 is also held and fixed so as to be rotatable with respect to the spin element 130 by known means. The pressing member 410 is fixed and held so as to be rotatable with respect to the spin element 130. In addition, although not shown, the uneven fitting portion described above is not between the body 120 and the spin element 130. Positioning means Po composed of first and second convex portions or protrusions and grooves that can be climbed over is provided.

  As shown in FIG. 7, the first arm portion 412 has a distal end rear surface 412 e positioned on the front surface 140 f of the operation lever 140 by the rotation of the pressing member 410 including the injection nozzle, and directs the operation lever 140 in the check direction. Press. Further, the second arm portion 413 has a step 414 formed in the vicinity of the tip back surface 413e thereof, and the step 414 constitutes a lock portion that comes into contact with the inner wall edge 140e of the operation lever 140 and prohibits the check operation. To do. Note that the tip rear surface 413 e of the second arm portion 413 contacts the opening edge 122 e of the cylinder 122 at a position where the lock portion 414 contacts the inner wall edge 140 e of the operation lever 140.

  According to such a configuration, when the trigger type ejector 100 is used, it is possible to switch between two injection modes. For example, when it is desired to inject a small amount of contents in a pinpoint manner focusing on a specific location, as shown in FIG. 7, the pressing member 410 has a tip rear surface 412 e of its first arm portion 412 as an operating lever. If it is rotated to a position aligned with the front surface 140f of 140, the tip 412e of the first arm portion 412 presses the operation lever 140 toward the check-in direction, and the return amount of the operation lever 140 decreases. When the lever 140 is checked, the amount of checking can be limited. If the maximum amount of content is to be diffused over a wide range, the tip 412e of the first arm 412 presses the operation lever 140 by rotating the pressing member 410 to the position shown in FIG. Therefore, all checks can be performed without restricting the check amount of the operation lever 140. It should be noted that because of the pinpoint injection, when the first arm portion 412 is mounted on the front surface 140f of the operation lever 140, although not shown, the initial abutment that is the first arm portion 412 or the front surface 140f of the operation lever 140. By making at least one of the portions into a tapered surface, it is possible to ride smoothly.

  When the trigger type ejector 100 is not used, as shown in FIG. 9, the pressing member 410 provided with the injection nozzle is rotated to a position where the lock portion 414 is aligned with the inner wall edge 140 e of the operation lever 14. Is in contact with the inner wall edge 140e of the operation lever 140, since the check-up operation of the operation lever 140 is prohibited, erroneous injection when not in use can be prevented.

  In the case of this form, since the pressing member 410 is united with the injection nozzle, existing components other than the pressing member 410 provided with the injection nozzle can be used. However, the present invention, as a modification thereof, presses the front surface 140f of the operation lever 140 with the tip rear surface 232e of the arm portion 232 that rotates between the injection nozzle 110 and the body 120 using the second reference technique. May be.

  As described above, according to the present invention, the trigger type ejector 100 is provided with switching means for switching the amount of check of the operation lever 140 to limit the amount of ejected contents and changing the injection range. The amount of discharge of the content pumped from the cylinder 122 to the feed path 121 and the pressure thereof are reduced, and the influence of the content colliding against the back surface of the collision plate 112 is reduced. Without being diffused over a wide range, it is possible to inject in a pinpoint manner to a specific location.

  In addition, since the switching means is a pressing member that is positioned on the front surface 140f of the operation lever 140 and presses the operation lever 140 toward the check-in direction, the operation lever 140 and the body are arranged in the layout of the trigger type ejector 100. Even when a member for limiting the amount of check of the operation lever 140 is not provided between the control lever 140 and the control lever 140, the amount of check of the operation lever 140 can be reliably limited.

  The above description shows only one embodiment of the present invention, and various modifications can be made by those skilled in the art within the scope of the claims. For example, the pump P provided in the body 120 is not limited to those illustrated in the above-described embodiments and the like as long as the check of the operation lever 140 and the release thereof directly affect the injection amount. . Further, the amount of check of the operating lever can be switched between two or more by providing a step on the tip back surface 412e of the pressing member 410, and positioning at that time is also performed by the clearance of the positioning means Po and the groove. The number can be increased to cope. Furthermore, the technical contents described in this embodiment and the like are not independent for each of the above-described reference techniques and this embodiment, and can be appropriately combined depending on the use as a trigger type ejector.

  In addition, the structure for foaming the contents shown in the above-described form or the like is the contents blown out from the opening 111a by taking in air from the outside between the opening 111a connected to the swirl flow path and the collision plate 112. By forming an air introduction part around the opening 111a for content injection on the front surface of the injection nozzle or by forming an air introduction part leading to the front of the opening 111a on the side wall of the injection nozzle A structure is shown in which air taken in from the outside and the ejected contents are mixed and collided with the collision plate 112 to foam, and which one is adopted is appropriately selected depending on the size and shape of the nozzle body 1. . Furthermore, the shape of the collision plate 112, which is a foam generating member, can be selected from various known shapes in addition to the shape shown in the present embodiment. In addition, the nozzle inner wall is collided instead of the front collision plate 112. The shape can be appropriately selected according to the viscosity of the content to be ejected and other characteristics and the ejection pattern suitable for the usage pattern.

11 Container mouth part 100 Trigger type ejector 110 Injection nozzle 120 Body 130 Spin element 140 Operation lever 150 Slide member 160 Base cap 230 Rotating member 410 Pressing member

Claims (4)

An injection nozzle having a foam generating unit for injecting the contents into a foam shape, a body having a feeding path connected to the injection nozzle and having a pump for sucking and pressurizing the contents, and shaking to the body In a trigger type ejector comprising an operation lever that is movably held and operates the pump by its check and release, and a base cap that fixes and holds the body at the mouth of the container,
Switching means for changing the injection range by switching the amount of check of the operation lever and limiting the amount of ejection of the contents;
The switching means includes a rotating portion that is rotatably held with respect to a body or a spin element provided on the body, and an arm portion that is provided integrally with the rotating portion. When the tip of the operation lever is rotated to a position aligned with the front surface of the operation lever, the operation lever is positioned toward the front surface of the operation lever and pressed toward the check direction. A trigger type ejector characterized by being a pressing member that limits the amount of dredging.   The trigger type ejector according to claim 1, wherein the switching means is rotated integrally with the injection nozzle.   The trigger type ejector according to claim 1, wherein the switching means rotates between the injection nozzle and the body.   4. The trigger type ejector according to claim 1, wherein the rotating portion integrally includes a lock portion that comes into contact with an inner wall edge of the operation lever and prohibits the check operation. 5.

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