JP4553189B2 - Trigger type ejector - Google Patents

Description

  The present invention relates to a trigger type ejector.

  Various types of trigger-type ejectors are known in which a dispenser with a trigger is attached to a container body, and the liquid in the container body is ejected in the form of a mist, foam, or water column by a trigger operation. As a general form of these, the dispenser is fixed to the container body with a mounting cap screwed to the mouth and neck, and the trigger is suspended from the lower front portion of the main body extending on the mounting cap. The liquid in the container is sucked up by the action of the built-in pump mechanism by pulling in the trigger, and the liquid is ejected from the nozzle outlet fitted in the front part of the main body. (Patent Document 1)

In this type of conventional ejector, for example, the upper portion of the body portion of the container body is formed in a small diameter, and the entire gripping portion is held, and a trigger operation is performed with one index finger or two fingers of the index finger and the middle finger. In general, the length of the trigger is approximately 60 mm in consideration of the width of one or two fingers applied when the trigger is operated.
JP 11-276945 A

  In the case of such a conventional ejector that contains a large amount of storage items used at a time, the number of discharges is increased and the hand becomes tired or the hand becomes painful after prolonged handling. was there. The present invention has been made in view of the above points, and can prevent as much as possible the occurrence of hand fatigue, pain, etc., even when a trigger operation is performed for a long time. We propose a trigger-type ejector that can be used.

As a first means, there is provided a container body having a mouth-and-neck portion standing on a trunk portion, and a trigger-type dispenser attached to the mouth-and-neck portion, and the dispenser is vertically suspended from the container body. A trigger that includes a trigger main body and a cylindrical extension cover that is fitted and fixed to the main body. The extension cover is fitted to the outer periphery of the trigger main body without rattling , and the lower non-fitting portion is provided. It further comprises a retaining means that extends downward from the lower end of the trigger body and prevents the trigger body from being pulled out .

As a second means, in the first means, an abutting surface with which the lower surface of the trigger main body abuts is provided at the lower part of the inner surface of the extension cover.

As a third means, in the first means or the second means, a retaining means in which an engaging protrusion is engaged with an engaging recess on the opposing surface of the trigger body and the extension cover. Adopted.

As a fourth means, in the third means, the engaging protrusion protrudes from the inner surface of the elastic plate provided at the upper end of the extension cover, and the engaging recess is provided at a predetermined position on the outer surface of the trigger body. Recessed.

As the fifth means, in the third means, the extension cover formed in a cylindrical shape by fitting another half cylinder part into the half cylinder part is adopted, and the cylindrical wall of the other half cylinder part is adopted. A retaining means for forcibly engaging the engaging protrusion, which protrudes inwardly and downwardly so that a part of the engaging body is elastically deformable, with the engaging recess formed in a predetermined position on the outer surface of the trigger body is employed.

As sixth means, in the first or second means, a retaining means is used in which an engagement piece defined on the peripheral wall portion of the extension cover is rotated and engaged with the trigger body.

As a seventh means, the sixth means adopts a trigger body having a cylindrical shape with an open rear surface, and is defined by connecting the upper end edge with a hinge on the rear wall of the extension cover. A retaining means is employed in which the lower end edge of the engaging piece climbs over and engages the upper surface of the bottom wall of the trigger body.

As an eighth means, in the sixth means, a trigger body having a cylindrical shape with an open rear surface and a shelf plate projecting in the middle in the vertical direction is adopted, and the lower end edge is connected by a hinge. A retaining means is employed in which the front end edge of the defined engagement piece climbs over and engages the front wall of the trigger body.

  The trigger type ejector of the present invention is configured so that the trigger is longer than the existing trigger, so that the retraction operation can be performed with a small force, and the finger becomes tired or painful even when used for a long time. This can be prevented as much as possible. Further, the extension cover 19 fitted in the trigger main body 18 can be prevented from being prevented by the presence of the retaining means S, and secure fitting can be secured. In addition, an existing assembly line can be used for assembly, and an existing filling line can be used at the time of filling, and it is only necessary to attach the extension cover 19 after each line is used, so there is no need to provide a new line.

  Further, the retaining means S in which the engagement protrusion 32 is engaged with the engagement recess 23 on the opposing surface of the trigger body 18 and the extension cover 19 is adopted, and the elastic plate portion provided on the upper end of the extension cover is provided on the inner surface. In the case where an engagement protrusion is provided and an engagement recess is provided at a predetermined position on the outer surface of the trigger body, the engagement protrusion 32 is automatically inserted into the trigger body 18 when the extension cover 19 is assembled. Since it engages with the engaging recess 23, it has the advantage that it can be assembled more easily.

  Furthermore, an extension cover formed into a cylindrical shape by fitting another half-cylinder part into the half-cylinder part is adopted, and a part of the cylindrical wall of the other half-cylinder part protrudes inward and downward so as to be elastically deformable. In the case of using a retaining means in which the engaging protrusion is forcibly engaged with an engaging recess formed in a predetermined position on the outer surface of the trigger body, the other half of the half cylinder portion 37 is inserted into the half cylinder portion 37 when the extension cover 19 is assembled. After fitting the cylinder portion 38, if it is similarly fitted into the trigger body 18, the engagement protrusion 32 can be automatically engaged with the engagement recess 23, and assembly can be facilitated. Further, since the extended cover 19 is formed in a divided state, it is possible to form the engagement protrusion 32 with a sufficiently large protrusion width, and a sufficient engagement strength when mounted on the trigger body 18. As a result, it is possible to prevent the slipping out more reliably.

  In addition, if the abutting surface with which the lower surface of the trigger body 18 abuts is provided at the lower part of the inner surface of the extension cover 19, the extension cover 19 can be easily fitted at a predetermined position, and the assembly operation can be performed more easily. Have both.

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

  FIG. 1 shows an example of the trigger type ejector of the present invention, and the trigger type ejector 1 includes a container body A and a dispenser B.

  The container body A is configured as a grip portion 2 a that can stand the mouth neck portion 3 on the trunk portion 2 and can grip the upper portion of the trunk portion 2. In the illustrated example, a grip portion 2a is formed in which the lower portion of the body portion 2 is cylindrical, the upper portion thereof is a truncated cone shape, and the finger hook recess 4 is provided in the lower portion of the front portion.

  The dispenser B is mounted on the container body A and ejects the liquid in the container body, and is fixed to the container body A by a mounting cap 11 fitted on the outer periphery of the mouth neck portion 3. In addition, the mounting cap 11 is provided with a locking surface a for locking the upper surface of the hand holding the grip portion 2a. The locking surface a in this case is provided on the lower surface of the plate-like portion 12 projecting rearward from the lower surface of the rear portion of the mounting cap 11. Further, a main body 14 incorporating a cylinder 13 or the like that controls the pump mechanism is provided on the mounting cap 11, and a trigger 15 is suspended from the front of the main body 14 to the front of the container body A. A nozzle 16 is fitted to the front end of the main body 14, and a spout 17 is opened on the front surface thereof. The dispenser B is capable of ejecting the liquid in the container into a form such as a water column, foam, or mist by selecting a built-in pump mechanism and selecting an internal structure of the nozzle.

  The trigger 15 is formed of a synthetic resin or the like, and has an upper end pivotally attached to the main body 14 so as to be swingable. By operating the trigger 15, the liquid in the container body A is sucked up by the action of the built-in pump mechanism. , It is configured to erupt. In the present invention, the trigger 15 includes a trigger body 18 and an extension cover 19.

  The trigger main body 18 is pivotally attached to the main body portion 14 so as to be swingable, and has a vertically long semi-cylindrical shape, a cylindrical shape, a plate shape, or the like. In the example shown in the figure, it has a bottomed cylindrical shape with an open rear surface, and has a vertically long front wall 20, side walls 21, 21, and a bottom wall 22. The upper end of both side walls 21 projects upward from the front wall 20, and that part is the main body. It is pivotally attached to 14. Engaging recesses 23 serving as one end of the retaining means described later are provided in the upper portions of the side walls 21, respectively. Further, a rod-like protrusion 24 is provided on the upper rear surface of the front wall 20 to push a plunger (not shown) in the cylinder 13. The length L of this trigger body 18 (the length from the pivoting portion 25 to the lower end) is preferably the same length as that of this general trigger type dispenser, and the length of 57 mm is adopted in the illustrated example. is doing.

The extension cover 19 is for fitting the trigger body 18 to extend the length of the trigger. The extension cover 19 is fitted to the outer periphery of the trigger body 18 and the lower non-fitting part is lower than the lower end of the trigger body 18. It has an extended cylindrical shape. In the illustrated example, a cylindrical shape with an upper end opening including a longitudinal front wall 26, both side walls 27, 27, a rear wall 28 and a bottom wall 29 is formed, and the upper end portion is bent forward along with the curvature of the trigger body 18. The rear portion is provided with a notch 30 for facilitating the mounting. In addition, a pair of elastic plate portions 31 are erected upward from the upper surfaces of the side walls 27, and engaging protrusions 32 projecting from one end of a retaining means to be described later are provided on the inner surfaces thereof. Reference numeral 33 denotes an air vent hole when the extension cover 19 is attached. Although the length of the extension cover 19 can be selected variously, the length L ₁ of the non-fitting portion that contributes to extending the length of the trigger main body 18 is preferably about 20 mm to 30 mm.

  Further, in order to prevent the extension cover 19 from coming off, in the present invention, a retaining means S comprising an engagement protrusion and an engagement recess formed by engaging the protrusion on the opposing surface of the trigger body 18 and the extension cover. Is provided. In the illustrated example, the engagement protrusions 32 provided on the inner surface of each elastic plate 31 of the extension cover 19 are engaged with the engagement recesses 23 provided on both side walls 21 of the trigger body 18 to prevent the extension cover 19 from coming out. ing.

  Further, in the present invention, a contact surface on which the lower surface of the trigger main body 18 abuts is provided at the lower inner surface of the extension cover 19, and in the illustrated example, rib-shaped protrusions 34 project from the inner surface lower portions of both side walls 27, respectively, A contact surface b with which the lower surface of the trigger body 18 abuts is used.

  When the extension cover 19 is attached to the trigger body 18, the extension cover 19 is fitted while the lower end portion of the trigger body 18 is inserted from the upper end opening, and the lower surface of the trigger body 18 comes into contact with the contact surface b. Fit up to. At this time, each elastic plate portion 31 rises while being elastically deformed so as to open outward, and each engagement protrusion 32 is engaged with each engagement recess 23 at the final time point. Even if the attached extension cover 19 is to be pulled out, it is prevented from being pulled out by the retaining means S. The extension cover 19 can be fitted to the trigger main body 18 after the assembly using the existing assembly line, and can be performed after the filling using the existing filling line.

  When the trigger type ejector 1 configured as described above is used, the trigger type ejector 1 is held by grasping the grip portion 2a from the state shown in FIG. At this time, for example, the ring finger and the little finger are hung on the finger hanging recess 4 and the thumb is held on the outer periphery of the gripping portion 2a from the opposite side. In addition, the gripping position is naturally secured at a certain position. Next, when the lower part of the trigger 15 is retracted with the index finger and the middle finger, the stored liquid is ejected from the ejection port 17.

  FIG. 5 and FIG. 6 show another example, showing an example in which the retaining means S is provided on the upper front portion of the trigger body 18, and more specifically, in the trigger body 18 of FIG. Instead of the provided engagement recess, an engagement recess 23 in the form of a through hole is provided at a predetermined position on the front wall 20. On the other hand, in the extended cover 19 of FIG. Thus, an elastic plate part 31 is defined at the upper end of the front wall 26, and an engaging protrusion 32 is provided on the upper part of the inner surface thereof. Other configurations are substantially the same as the example of FIG.

7 and 8 show still another example, in which a finger hooking portion 35 is provided on the front surface of the trigger 15. The finger hook portion 35 is formed below the linear protrusion 36 that crosses the front surface of the extension cover 19, and is configured so that two fingers of the index finger and the middle finger are hooked. A similar separating linear protrusion 36a separates the index finger finger hook portion 35a and the middle finger finger hook portion 35b. It is preferably about 35mm~40mm as the length L ₂ of the finger rest 35.

  FIG. 9 to FIG. 12 show still other examples, in which the extension cover 19 is formed into a cylindrical shape by fitting another half-cylinder part 38 in the half-cylinder part 37, and the retaining means S is provided with other In this example, a part of the cylindrical wall of the semi-cylindrical portion 38 is provided with an engaging protrusion 32 that protrudes inward and downward so as to be elastically deformable. In the illustrated example, the half cylinder part 37 and the other half cylinder part 38 are integrally formed via a connecting piece 39. The semi-cylindrical portion 37 has a bottomed rectangular cylindrical shape with one side opening, and an engaging protrusion 40 protrudes from an inner surface opening edge, and a fitting cylinder 41 protrudes from the inner surface. Similarly, the other half-cylinder portion 38 has a bottomed rectangular tube shape with one side opening, and has an engagement groove 42 that engages with the engagement protrusion 40 on the outer edge. Further, a fitting cylinder 43 that fits into the fitting cylinder 41 is provided at a predetermined position on the back surface. Furthermore, engaging projections 32 in the form of elastic plates are formed on both side walls so as to be inclined and lowered partially.

  Then, the other half tube portion 38 is fitted into the half tube portion 37, the fitting tube 43 is fitted into the fitting tube 41, and each engagement protrusion 40 is engaged with each engagement groove 42. Thus, the expansion cover 19 is formed as shown in FIG. The extension cover 19 is inserted and fitted from the lower end of the trigger body 18. At this time, the upper surface of the fitting cylinder 41 serves as the contact surface b. Engagement recesses 23 each having a stepped bottom surface and an inclined surface are provided at predetermined positions on both side walls of the trigger body 18. As shown in FIG. It is engaged with the mating recess 23 to prevent it from coming out.

  FIG. 13 and FIG. 14 show still another example, which is an example in which a retaining means S is provided in which the engagement piece defined on the peripheral wall portion of the extension cover 19 is rotated and engaged with the trigger body 18. In this case, a locking projection 44 is formed on the rear surface of the bottom wall 22 of the trigger body 18 so that an engagement piece, which will be described later, can be engaged with. is doing.

  In the illustrated example, the engagement piece 46 has a vertically long rectangular shape, the upper edge is connected by a hinge 47, and the other periphery is separated from the rear wall 29 by a cut groove c. Further, rib-like projections 48 are respectively provided on the inner surface lower portions of both side walls 28, and the upper surface thereof serves as a contact surface b with which the lower surface of the trigger body 18 contacts. Reference numeral 49 denotes an air vent hole when the extension cover 19 is attached.

  When the extension cover 19 is attached to the trigger body 18, the extension cover 19 is fitted while the lower end portion of the trigger body 18 is inserted from the upper end opening, and the lower surface of the trigger body 18 comes into contact with the contact surface b. Fit up to. At this time, the trigger body 18 is strongly fitted in the extension cover 19, and the extension cover 19 is mounted without rattling. The fitting of the trigger body 18 into the extension cover 19 is not limited to this example, and a strong fitting is preferable. Next, the engaging piece 46 is rotated around the hinge 47, and the tip end edge of the engaging piece 46 passes over the locking projection 44 and is engaged in front thereof. Even if the attached extension cover 19 is to be pulled out, the engagement piece 46 prevents the pulling out. The extension cover 19 can be fitted to the trigger main body 18 after the assembly using the existing assembly line, and can be performed after the filling using the existing filling line.

  When the trigger type ejector 1 configured as described above is used, it can be performed in the same manner as in the example of FIG.

  FIG. 15 and FIG. 16 show still another example, the trigger body 18 has a cylindrical shape with an open rear surface, and a shelf board 50 is projected at the middle in the vertical direction on the back surface of the front wall 20, As an example of the retaining means S, an engagement piece 46 defined by connecting a lower end edge with a hinge 47 is brought into contact with the upper surface of the shelf plate 50, and is moved over and engaged with the front wall 20 of the trigger body.

  In the illustrated example, the shelf 50 is integrally connected to both side walls 21 on both sides, and a horizontally long fitting hole 51 is formed in the front wall 20 on the top surface of the shelf 50. A locking projection 44 is provided on the upper edge of the hole 51 so as to protrude. Further, the elongated cover 19 defines a vertically-long rectangular engagement piece 46 having a lower edge connected to the upper end portion of the rear wall 28 by a hinge 47 and both sides separated by a cut groove c. Other configurations are the same as those of the embodiment of FIG.

  When the extension cover 19 of this example is attached to the trigger body 18, the extension cover 19 is fitted while the lower end portion of the trigger body 18 is inserted from the upper end opening, and the lower surface of the trigger body 18 is the contact surface b. Fit until it touches. Next, the engaging piece 46 is rotated around the hinge 47, and the leading edge thereof passes over the locking projection 44 and engages with the fitting hole 51 on the front thereof. At this time, the lower surface of the engagement piece 46 is in contact with the upper surface of the shelf board 50. Even if the attached extension cover 19 is to be pulled out, the engagement piece 46 prevents the pulling out. The time when the extension cover 19 is fitted to the trigger main body 18 is the same as that in the embodiment of FIG. 13, and the method of using the trigger type ejector 1 provided with the trigger 15 is also the same.

It is a side view of this invention trigger type ejector. Example 1 It is a longitudinal cross-sectional view which shows the trigger in this invention. Example 1 It is a principal part front view of the expansion | extension cover engagement part in this invention. Example 1 It is a perspective view which shows the expansion | extension cover in this invention. Example 1 It is a longitudinal cross-sectional view which shows the trigger in this invention. (Example 2) It is a perspective view which shows the expansion | extension cover in this invention. (Example 2) It is a longitudinal cross-sectional view which shows the trigger in this invention. (Example 3) It is a perspective view which shows the expansion | extension cover in this invention. (Example 3) It is a longitudinal cross-sectional view which shows the trigger in this invention. Example 4 It is a principal part longitudinal cross-sectional view of the expansion | extension cover engagement part in this invention. Example 4 It is a perspective view which shows the expansion | extension cover in this invention. Example 4 It is a disassembled perspective view which shows the expansion | extension cover in this invention. Example 4 It is a longitudinal cross-sectional view which shows the trigger in this invention. (Example 5) It is a perspective view which shows the expansion | extension cover in this invention. (Example 5) It is a longitudinal cross-sectional view which shows the trigger in this invention. (Example 6) It is a perspective view which shows the expansion | extension cover in this invention. (Example 6)

Explanation of symbols

2 ... trunk, 3 ... mouth neck, 15 ... trigger, 18 ... trigger body, 19 ... extension cover,
23 ... engaging recess, 31 ... elastic plate, 32 ... engaging projection, 37 ... half tube, 38 ... other half tube,
A ... Container body, B ... Dispenser, S ... Stopping means, b ... Contact surface 46 ... Engagement piece, 47 ... Hinge, 50 ... Shelf plate,

Claims (8)

A trigger body having a mouth-and-neck portion standing on a trunk portion, and a trigger-type dispenser mounted on the mouth-and-neck portion, the dispenser being pivotably suspended in front of the container body and the body A trigger composed of a cylindrical extension cover fitted and fixed to the upper part of the extension cover. The extension cover is fitted to the outer periphery of the trigger body without rattling , and the lower non-fitting part is below the lower end of the trigger body. A trigger-type ejector characterized in that it is provided with a retaining means that extends to the trigger body and prevents the trigger body from being pulled out . The trigger type ejector according to claim 1, wherein a contact surface with which the lower surface of the trigger main body contacts is provided at a lower portion of the inner surface of the extension cover. The trigger type ejector according to claim 1 or 2, wherein a retaining means in which an engagement protrusion is engaged with an engagement recess on an opposing surface of the trigger body and the extension cover is adopted. The trigger type ejector according to claim 3, wherein the engaging protrusion is provided on an inner surface of an elastic plate provided at an upper end of the extension cover, and the engaging recess is provided at a predetermined position on the outer surface of the trigger body. The extension cover formed in a cylindrical shape by fitting another half-cylinder part inside the half-cylinder part is adopted, and a part of the cylindrical wall of the other half-cylinder part protrudes inward and downward so as to be elastically deformable. The trigger type ejector according to claim 3, wherein the engagement protrusion is forcibly engaged with the engagement recess formed in a predetermined position on the outer surface of the trigger body. The trigger type ejector according to claim 1 or 2, wherein a retaining means is employed in which an engagement piece defined on a peripheral wall portion of the extension cover is rotated and engaged with the trigger body. A trigger body having a cylindrical shape with an open rear surface is adopted, and the lower end edge of the engagement piece defined by connecting the upper end edge with a hinge on the rear wall of the extension cover is used as the upper surface of the bottom wall of the trigger body. The trigger type ejector according to claim 6, wherein a retaining means that is engaged with and is engaged. The trigger body has a cylindrical shape with an open rear surface and a shelf plate projecting from the middle in the vertical direction. The trigger edge is defined by connecting the lower end edge with a hinge. The trigger type ejector according to claim 6, wherein a retaining means that climbs over and engages with the front wall is adopted.