JP4460380B2 - Operation assisting member and injection device provided with the operation assisting member - Google Patents

Description

  The present invention relates to an operation assisting member that can be detachably attached to an injection device.

JP-A-11-208749 JP 2001-315871 A

  A conventional finger-pushing type injection member has an injection hole on a side surface and is fitted to an aerosol valve or a stem (valve rod) of a pump. For example, in the case of an aerosol device, an injection device equipped with such a finger-pushing type injection member can be injected by a simple operation of pushing the top surface of the injection member from above with an index finger. Further, since the finger-pushing-type injection member does not occupy the space above the aerosol container, it is possible to prevent accidental injection by simply putting on a simple cap, and it is easy to carry, pack or display. Moreover, since the structure is simple, the thing provided with various injection holes according to the use is provided. However, at the time of use, since the injection member is pushed down against the resilience of the aerosol valve, a certain amount of force is required, and in order to inject for a long time, it is necessary to maintain the pushed down state, and the finger gets tired. On the other hand, in the case of a pump-type injection device, the injection member has to be pushed down several times until injection becomes possible, and the stroke of the depression is long, so that the finger is easily fatigued.

  Patent Document 1 discloses an aerosol device using a trigger type injection member. In the trigger type injection member, a trigger that is an operation part and an injection nozzle that injects contents by the trigger are integrally formed. When the trigger is pulled, the stem can be pushed down with a small force according to the principle of leverage, so it can be used easily even by elderly people and children with weak power, and it is easy to aim the injection hole. Such a trigger that is effective at the time of use can be replaced later, which is advantageous for the user. However, in order to change a finger-pressing type injection member to a trigger, the injection member must first be removed from the stem and then the trigger must be attached. Therefore, the replacement work is complicated and the injection member is wasted.

  In addition, the trigger-type injection member has an advantage that it is easy to aim at injection, but when the injection hole is directed toward the target, the grip of the handle that automatically operates the trigger is also determined. In this way, if there is no degree of freedom in the position of the index finger and the direction of the injection hole, for example, when you want to inject the contents toward yourself, if you point the injection hole at yourself, But you have to turn towards yourself and twist your wrist with an unreasonable posture. If you twist your wrist with such an unreasonable posture, the direction of jetting will not change, and you will not be able to expect the desired operation. Furthermore, since the trigger type injection member has a long nozzle shape, the passage from the stem to the injection hole becomes long, and the amount of contents remaining in the passage is large when the injection operation is stopped. Since the structure of the injection hole is limited, there is a problem that it is difficult to obtain a desired injection form.

  The present invention has been made in view of these problems, and can be easily made into a trigger type injection device simply by mounting on an injection device provided with a finger-push type injection member, and waste can be reduced. It is an object of the present invention to provide an operation assisting member and to provide an injection device that can be attached to the operation assisting member and can have a degree of freedom in the position of the handle and the direction of the injection hole.

An operation auxiliary member according to the present invention (Claim 1) is an operation auxiliary member that can be detachably attached to an injection device that includes an injection member that injects contents by a finger pressing operation. The operation auxiliary member is attached to the injection device. Bei a mounting portion, and a connecting portion provided on the mounting portion comprises an arm portion having one end supported by the connecting portion, the operation portion can be pulled over a finger on the other end of the arm portion The injection member is provided with an annular flange extending outward from its side surface, and the arm portion is formed with an opening through which the upper end portion of the injection member can be projected, and the periphery of the opening It is possible to push down the buttocks .

In such an operation assisting member, it is preferable that the arm portion of the operation assisting member is provided with a protrusion that comes into contact with the collar portion (claim 2).
A second aspect (Claim 3) of the operation assisting member of the present invention is an operation assisting member that can be detachably attached to an ejecting device that includes an ejecting member that ejects contents by a finger pressing operation. A mounting portion for mounting on the mounting portion, a connecting portion provided on the mounting portion, and an arm portion supported at one end by the connecting portion, the arm portion inserting a valve rod for inserting the valve rod of the injection device And an ejecting member mounting portion for mounting the ejecting member, and an operating portion that can be pulled by placing a finger on the other end of the arm portion (Claim 3). .
Further, in any of the operation assisting members, it is preferable that the operation portion is a trigger extending downward from the tip of the arm portion, and the trigger is recessed inward and has a substantially arcuate shape gradually spreading outward. (Claim 4).

  The aerosol device with an operation assisting member according to the present invention (Claim 5) includes an aerosol device and the operation assisting member according to Claim 1 attached to the aerosol device. The pump type device with an operation auxiliary member of the present invention (Claim 6) comprises a pump type injection device and the operation auxiliary member according to Claim 1 attached to the pump type injection device. .

The operation assisting member of the present invention (Claim 1) can be ejected by an operation of pulling with a finger only by being mounted on an ejecting device having a finger-pressing ejecting member, and with a small force by lever action. The jetting operation can be performed. For this reason, women and children with weak hands and small hands, and even elderly people whose hand movements have become dull, can easily operate the injection device. In addition, since it can be used for various types of finger-push-type injection members that have conventionally been used, options for the structure of the injection holes are widened, and a desired injection form is easily obtained. Furthermore, after the contents in the injection device are emptied, they can be replaced with a new injection device and reused. Therefore, the operation assisting member is not wasted and is suitable for resource protection. In particular, since the operation assisting member and the ejection member are separate, the ejection direction can be freely changed according to the ejection region with respect to the hand holding the ejection device and the finger operating the operation unit. Therefore, the ejection operation can be performed at a position that is easy for the user to use. Moreover, since the upper end of the injection member protrudes from the opening and can be mounted on the injection device as it is, a trigger mechanism can be easily added. Further, since the top surface of the ejection member can be operated with a finger, both finger-pressing and triggering operation methods are possible.

If the arm of the operation assisting member is provided with a protrusion that comes into contact with the collar (Claim 2), it is easy to transmit the operation force generated by a finger pulling operation to the injection member below the axis of the injection device. The valve stem can be pushed down.
The second aspect of the operation auxiliary member of the present invention (Claim 3) can apply the operation auxiliary member of the present invention regardless of the size and shape of the injection member.
Further, in any of the operation assisting members, the operation portion is a trigger extending downward from the tip of the arm portion, and the trigger is recessed inward and has a substantially arcuate shape that gradually spreads outward. Item 4) is easy to catch the index finger.

  The aerosol device with an operation assisting member of the present invention (Claim 5) includes an aerosol device and the above-described operation assisting member mounted on the aerosol device. For this reason, it is easy to aim at injection and it is possible to prevent excessive injection. Moreover, the pump type injection device with an operation auxiliary member of the present invention (Claim 6) includes the pump type injection device and the above-described operation auxiliary member mounted on the pump type injection device. Therefore, even if it is a pump with a long stroke until it accumulates and injects, injection operation becomes easy.

  Next, an embodiment of an operation assisting member and an injection device equipped with the operation assisting member of the present invention will be described with reference to the drawings. FIG. 1a is a perspective view showing an embodiment of an aerosol apparatus equipped with an operation assisting member of the present invention, FIG. 1b is a partial side sectional view of FIG. 1a, and FIGS. 2a, 2b, and 2c are aerosol apparatuses of the present invention, respectively. FIG. 3 is a schematic top view showing a state in which the common operation assisting member is mounted in a different orientation with respect to the spray member, FIG. 3 is a perspective view showing another embodiment of the aerosol apparatus equipped with the operation assisting member of the present invention, and FIG. 3b. Fig. 4a is a partial side sectional view of Fig. 3a, Fig. 4a is a top view showing another embodiment of an aerosol device equipped with an operation assisting member, Fig. 4b is a partial side sectional view of Fig. 4a, and Fig. 4c is the entire aerosol device. FIG. 5a is a perspective view showing an embodiment of a pump type injection device equipped with the operation assisting member of the present invention, and FIG. 5b is a partial side sectional view of FIG. 5a.

  An aerosol apparatus equipped with the operation assisting member of the present invention will be described with reference to FIG. An aerosol apparatus 1 shown in FIG. 1 includes an aerosol container 4 including a container main body 2 and an aerosol valve 3 fixed to an opening of the container main body, and an operation auxiliary member 5 that can be attached to the upper end of the aerosol container 4. And a finger-pushing type injection member 6 that is attached to the stem (valve rod) of the aerosol valve 3 and operates to open and close the aerosol valve, and the contents (aerosol composition) are contained inside the aerosol container 4 7 is filled.

  As the container main body 2, for example, a known one having a bottomed cylindrical shape having pressure resistance made of a metal such as aluminum or tin, a synthetic resin, pressure-resistant glass, or the like can be used. As shown in FIGS. 1a and 1b, the container body 2 is provided with a shoulder portion 2a at the upper end, and a bead portion 2b is formed at an opening further upward from the shoulder portion 2a. The aerosol valve 3 includes a mounting cup 8 that is crimped to the bead portion 2b, a housing 9 that is held by the mounting cup 8, a stem 10 that is provided in the housing 9 so as to be vertically movable or tiltable, and the stem 10 A well-known thing which has a spring always energized upward can be used.

  The aerosol valve 3 is attached to the container main body 2 by crimping a cover portion 8 a and a side wall 8 b formed at the upper end of the mounting cap 8 to the bead portion 2 b of the container main body 2. The said injection member 6 is exhibiting the column-shaped shape, and the injection hole 6a is formed in the side surface. The injection member 6 has a stem mounting portion attached to the stem 10, and the stem 10 and the injection hole 6 a communicate with each other via a passage 6 c in the injection member. As such an injection member 6, in addition to a spray nozzle (for example, a mechanical breakup mechanism, a forward tapered injection hole, a reverse tapered injection hole, a straight injection hole, etc.) There are spouts ejected in a foam form, wide spray nozzles for spraying in a wide range, multi-directional spray nozzles for spraying in a plurality of directions, and long nozzles for insertion in a narrow space.

  The operation assisting member 5 has an annular mounting portion 5a mounted on the upper end of the aerosol container 4, a hinge (connecting portion) 5b provided at the rear end of the mounting portion 5a, and one end supported by the hinge 5b. 4 comprises an arm part 5c extending through the upper part of 4 and a trigger (operation part) 5d extending continuously downward from the tip of the arm part 5c. The mounting portion 5a is a cylindrical member, and elastically holds the covering portion 8a of the mounting cap 8 at the lower end thereof. A notch 5h is formed upward at the cylindrical lower end of the mounting portion 5a. When removing the operation assisting member 5 from the aerosol container 4, the annular mounting portion 5a is easily deformed by the notch 5h, and the fitting between the mounting portion 5a and the covering portion 8a is weakened and is easily removed.

  The hinge 5b is formed by a pair of left and right L-shaped engagement pieces extending outward from the outer periphery of the mounting portion 5a. The arm portion 5c is a flat plate-like member and has a substantially circular portion near the center thereof. Engaging protrusions 5e and 5e, which are rotatably supported by the engaging pieces of the hinge 5b, extend from both sides of one end of the flat plate-like member. The engaging protrusion 5e is hooked and locked on the engaging piece of the hinge 5b. A substantially circular opening 5f is formed in a circular portion at the center of the arm 5c, and the upper portion of the injection member 6 is disposed so as to protrude from the opening 5f. Therefore, even if the arm portion 5c swings around the engaging projections 5e and 5e, it does not interfere. Further, projections 5g and 5g extending downward from both sides with the injection member 6 interposed are formed from the lower surface of the arm portion 5c. When the arm portion 5c swings by the pulling operation of the trigger 5d, the projection 5g comes into contact with a later-described collar portion of the injection member 6 and pushes downward. A trigger 5d extends downward from the other end of the arm portion 5c. Since the trigger 5d has a generally arcuate shape that is recessed toward the inside and gradually expands toward the outside, the index finger is easily hooked. The trigger member 5 thus molded is molded from a synthetic resin such as polyolefin such as polyethylene or polypropylene, polycarbonate, polyamide or polyester, for example.

  A flange 6b that extends outward is formed at the lower end of the injection member 6, and when the arm 5c swings downward by pulling the trigger 5d with an index finger, a protrusion that extends from the lower surface of the arm 5c. 5g and 5g abut against the flange 6b and push downward. And the injection member pushed by the protrusion 5g pushes down the stem 10, and the content 7 is injected. In addition, it can also inject by pushing down the injection member 6 directly.

  Examples of the contents filled in the aerosol container 1 include, for example, styling agents, treatment agents, hair dyes, depigmenting agents, coloring agents and other active ingredients for hair, moisturizers, antipruritic agents, analgesics, hot flashes, and the like. Stock solutions containing active ingredients for skin such as anti-perspirants, antiperspirants, pest repellents, refreshing agents, cleansing agents, hair restorers, etc., and active ingredients for household use such as insecticides, deodorants, and fragrances, and It consists of a propellant such as liquefied gas or compressed gas for injecting the stock solution.

  The operation assisting member 5 can be sold as an accessory of an ordinary finger-pressed aerosol product, or can be sold separately. When attaching to a normal aerosol device, the injection member 6 protrudes from the opening 5f of the operation assisting member 5, and the mounting portion 5a at the lower end of the operation assisting member 5 is elastically mounted on the covered portion 8a. In this state, when the trigger 5d is pulled, the arm 5c can swing around the hinge 5b as a fulcrum. Thus, it changes to the trigger type aerosol device only by attaching the operation auxiliary member 5 to the aerosol container 4 without adding any change to the existing aerosol device 1 that does not have the trigger type injection member. be able to. Moreover, when removing the operation assistance member 5 from the aerosol apparatus 1, it can pull out easily by the notch 5h provided in the mounting part 5a.

  Next, the state of the aerosol apparatus 1 equipped with the operation assisting member 5 of the present invention will be described with reference to FIGS. First, as shown in the top view shown in FIG. 2a, the positions of the injection hole 6a of the injection member 6 and the trigger 5d of the operation assisting member 5 are overlapped and face the same direction. In this case, it is the same as the conventional trigger type injection member.

  As shown in FIG. 2b, the mounting portion 5a of the operation assisting member 5 holding the covering portion 8a is rotated. If it does so, an angle can be given to direction of the trigger 5d and the injection hole 6a (refer angle X of FIG. 2b). Further, as shown in FIG. 2c, the direction of the trigger 5d and the injection hole 6a can be made opposite to each other. In that case, the contents 6 can be ejected toward the user without changing the arrangement of the finger pulling the trigger 5d. For example, even if you want to spray lotion or the like toward your face, you do not have to bend your wrist toward your face and place the trigger pulling finger and spray hole 6a near the face. After freely deciding the angle formed by the hole 6a and the trigger 5d, the trigger 5d is pulled with a posture that does not force the wrist, and a desired injection is performed. The angle between the trigger 5d and the injection hole 6a may be adjusted by rotating the injection member 6.

  FIG. 3 shows another embodiment of an aerosol apparatus equipped with the operation assisting member of the present invention. Since the aerosol device 20 shown in FIGS. 3a and 3b is substantially the same as the aerosol device 1 of FIG. 1, the same components are denoted by the same reference numerals and description thereof is omitted. Similarly, the operation assisting member 21 of the aerosol device 20 has the mounting portion 5a. The arm portion 21a supported by the hinge 5b at the rear end of the mounting portion 5a and extending forward through the upper portion of the aerosol container has a lower surface side. An insertion hole 21b (stem insertion part) for inserting the stem (valve rod) 10 is formed in the vicinity of the center of the valve. On the upper surface side, a convex mounting member 21c (injecting member mounting portion) that communicates with the insertion hole 21b protrudes. The injection member 22 is attached to the tip of the convex mounting member 21c, and the insertion hole 21b, the convex mounting member 21c, the passage 6c in the injection member 22 and the injection hole 6a communicate with each other from the stem 10. The insertion hole 21b is made of synthetic rubber or natural rubber so that it can be used for aerosol valves having different diameters or heights of the stem 10, and so that the insertion hole 21b is not deformed by repeated use. It is preferable to insert an elastic body 21d such as silicon rubber or elastomer. Further, the tip of the convex mounting portion 21c has a diameter substantially the same as the stem insertion hole of the injection member 22 so that the aerosol composition 7 does not leak from the mounting portion when the injection member 22 is mounted and the injection operation is performed. Preferably there is. Moreover, you may mount | wear with the elastic body 21d in the outer periphery of a front-end | tip part in order to seal a mounting part.

  In order to attach the operation assisting member 21 to the aerosol container 4 having a normal finger-pushing type injection member, first, the existing injection member 22 is pulled upward from the stem 10 and removed. Next, the operation assisting member 21 is attached to the aerosol container 4 and the stem 10 is inserted into the insertion hole 21b. Thereafter, the ejection member 22 is mounted on the convex mounting member 21 c of the operation assisting member 21. When the operation assisting member 21 in the present invention is used, the spray member 22 can be easily changed to the trigger type without wasting the finger-pressed aerosol device. In addition, the injection member 22 used for such an aerosol apparatus 20 does not need to be provided with the collar part which the lower end part extended outside, and since the injection member 22 is mounted on the operation assisting member 21, which Such a shape and size of the injection member 22 can be accommodated. Moreover, since the direction of the trigger 5d of the operation auxiliary member 21 and the injection hole 6a of the injection member 22 can be freely changed, it is easy for the user to inject.

Furthermore, other embodiment of the aerosol apparatus provided with the operation assistance member of this invention is described using FIG. Figure 4a, the aerosol device 24 shown in Figure 4b and 4c, is provided with a pair of side walls 23 to assist member 21 of the aerosol device 20 described in FIG. The side wall 23 extends vertically upward from both sides of the mounting portion 5a so as to cover both side surfaces of the injection member 22, and the height of the side wall 23 prevents the injection member 22 from being accidentally pushed down when not in use. It is higher than the top of 22. In this case, the angle between the injection member 22 and the trigger 5d can be changed only in the opposite direction of 180 °, but the side wall 23 can prevent the injection member 22 from being pushed down accidentally, and the injected content 7 is more than expected. Can be prevented from splashing into your finger or even your finger.

  FIG. 5 shows an embodiment of a pump type injection device provided with the operation assisting member of the present invention. Since the pump type injection device 25 shown in FIG. 5 is almost the same as the aerosol device 1 shown in FIG. 1, the same portions are denoted by the same reference numerals and the description thereof is omitted. A pump-type injection device 25 shown in FIG. 5 is mounted on a pump-type injection device container 27 including a container main body 2 and a check valve 26 attached to an opening of the container main body, and an upper end of the pump-type injection device container 27. And an injection member 6 that is attached to the stem (valve rod) 10 of the check valve 26 and operates to open and close the check valve 26.

  In the pump type injection device, the injection amount of the contents per one time is determined by the stroke amount of the stem. Therefore, when a large injection amount is desired, the stroke must be increased. If it does so, it will be necessary to move an injection member large up and down, and it will become difficult to operate with a finger. Therefore, when the operation assisting member 28 is provided in such a pump type injection device, even a pump having a long stroke can be easily injected simply by pulling the trigger 5d with a finger.

FIG. 1a is a perspective view showing an embodiment of an aerosol apparatus provided with an operation assisting member of the present invention, and FIG. 1b is a partial side sectional view of FIG. 1a. 2a, 2b, and 2c are schematic top views showing how the operation assisting member of the present invention is mounted on the aerosol device. FIG. 3 is a perspective view showing another embodiment of the aerosol apparatus provided with the operation assisting member of the present invention, and FIG. 3b is a partial side sectional view of FIG. 3a. Fig. 4a is a top view showing another embodiment provided with the operation assisting member of the present invention, Fig. 4b is a partial side sectional view of Fig. 4a, and Fig. 4c is a perspective view of the entire aerosol apparatus. FIG. 5a is a perspective view showing an embodiment of a pump type injection device equipped with the operation assisting member of the present invention, and FIG. 5b is a partial side sectional view of FIG. 5a.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Aerosol apparatus 2 Container main body 2a Shoulder part 2b Bead part 3 Aerosol valve 4 Aerosol container 5 Operation assistance member 5a Mounting part 5b Hinge part 5d Trigger part 5e Engagement protrusion 5f Opening part 5g Projection 5h Notch 6 Injection member 6a Injection hole 6b collar portion 6c passage 7 contents 8 mounting cap 8a covering portion 8b side wall portion 9 housing 10 stem 20 aerosol device 21 operation assisting member 21a arm portion 21b insertion hole 21c convex mounting member 21d elastic body 22 injection member 23 side wall 24 aerosol Device 25 Pump type injection device 26 Check valve 27 Pump type injection device container 28 Operation assisting member

Claims (6)

An operation auxiliary member that can be detachably attached to an injection device including an injection member that injects contents by a finger pressing operation,
A mounting portion for mounting on the injection device, a connecting portion provided in the mounting portion, and an arm portion supported at one end by the connecting portion ;
Bei example the operating unit that can be pulled over the finger at the other end of the arm portion,
The injection member is provided with an annular flange extending outward from the side surface thereof,
An operation assisting member in which an opening that allows the upper end portion of the injection member to protrude is formed in the arm, and the collar can be pushed down around the opening . The operation assisting member according to claim 1, wherein the arm of the operation assisting member is provided with a protrusion that comes into contact with the flange . An operation auxiliary member that can be detachably attached to an injection device including an injection member that injects contents by a finger pressing operation,
A mounting portion for mounting on the injection device, a connecting portion provided in the mounting portion, and an arm portion whose one end is supported by the connecting portion;
The arm portion has a valve rod insertion portion for inserting the valve rod of the injection device, and an injection member mounting portion for mounting the injection member,
An operation assisting member comprising an operation unit that can be pulled by placing a finger on the other end of the arm . The operation part is a trigger extending downward from the tip of the arm part;
The operation assisting member according to claim 1, wherein the trigger has a substantially arc shape that is recessed inward and gradually expands outward . The said injection apparatus is an aerosol apparatus, The aerosol apparatus with the operation assistance member which mounted | wore the aerosol apparatus with the injection auxiliary member in any one of Claim 1 or 3 . The pump type injection device with an operation auxiliary member, wherein the injection device is a pump type injection device, and the operation auxiliary member according to claim 1 is mounted on the pump type injection device.