JP2006044705A - Trigger-type aerosol injection device with vent stopper member, and trigger-type aerosol injector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a trigger-type aerosol injection device which is not troublesome in handling or causes a cost increase, and facilitates venting upon scrapping the injection device without requiring the preparation of tools or continuous pressing of a stem. <P>SOLUTION: The aerosol injection device has a depressing member 33 which consists of a first portion 34 extending in a depressing direction and a second portion 35 extending in the direction perpendicular to the first portion 34. The second portion is made to penetrate through a stopper member 50 to support it slidably so that the stopper member 50 can move to a retreat position and to a stop position freely. When the stopper member 50 is set in the retreat position, the stopper member 50 does not prevent returning of a trigger lever from a second position to a first position. When the stopper member 50 is set in the stop position, the stopper member 50 is fitted into a passage hole 38a of the trigger lever to be moved in between the depressing member 33 and the trigger lever, where the stopper member 50 prevents the trigger member from returning from the second position to the first position. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention is a degassing stopper that is attached to the mouth of a container, rotates a trigger lever to push down a pressing member during use, and injects the contents of the container to the outside with the pressure of the propellant through the pressing member. The present invention relates to a trigger type aerosol injection device with a member. Further, the present invention relates to a trigger type aerosol injector for insecticidal, medicinal, cosmetic, cleaning, painting, etc., having such a trigger type aerosol injection device with a degassing stopper member attached to the mouth of a container.

  Conventionally, in the trigger type aerosol injector, an aerosol injection device is attached to the mouth of a container such as a spray can, the contents are stored together with the propellant in the container, the trigger lever is rotated and the stem is moved via the pressing member. The contents of the container were jetted to the outside by the pressure of the propellant by pushing or pushing the stem as a push-down member.

  By the way, this type of injector is usually filled with a flammable gas as a propellant, so when throwing away, if it is discarded as it is, the container will explode during waste disposal, and the cleaning operator may be injured, The incinerator may be damaged. For this reason, when discarding, it has been practiced to make a hole in the container in advance or continue to push the stem to release the gas in the container.

  However, in order to make a hole in the container, it is troublesome to prepare a tool such as a nail, a threader and a hammer, or a commercially available dedicated tool. On the other hand, in order to keep pushing down the stem, it has been troublesome to put the finger on the stem for a long time and keep pushing, and to exhaust the gas in the container completely, the finger must be prepared for fatigue.

  In view of such a point, in the conventional aerosol injector, for example, as shown in FIG. 13, the inlet peripheral edge 3 a of the bowl-shaped degassing jig 3 is fitted to the winding part 2 on the outer periphery of the bottom of the container 1. Some have a degassing jig 3 detachably. At the time of disposal, the cap 5 is removed from the aerosol injection device 4 attached to the mouth of the container 1, and the degassing jig 3 is removed from the container 1 and placed on the container 1 as shown in FIG. The rib 8 of the degassing jig 3 is fitted to the winding part 7 around the stem 6 and the stem 6 is held in a state of being pushed in by the stop plate 9 of the degassing jig 3 so that the propellant in the container 1 is completely removed. I was trying to pull it out.

JP 2000-177786 A

  However, in such an aerosol injector, since the degassing jig 3 is attached to the container 1, the entire size becomes large, which may be inconvenient for storage and use, or the degassing jig 3 may come off during normal use. There was a problem that the handling was troublesome. In addition, since the gas venting jig 3 having a complicated shape including the inlet peripheral edge 3a, the rib 8 and the stop plate 9 must be provided, there is a problem that the cost increases.

  Therefore, the object of the present invention is to eliminate such problems, without causing troublesome handling and high costs, and without having to prepare a tool and keep pushing the stem. It is to enable the degassing.

  Therefore, the invention described in claims 1 to 4 is configured by attaching to a container such as a spray can and rotating the trigger lever from the first position to the second position during use, and the stem itself or a member attached thereto. In the trigger type aerosol injection device with a degassing stopper member, which pushes down the pressing member and injects the contents of the container through the inside of the pressing member, for example, from the nozzle outlet of the nozzle member attached to the pressing member. The member is supported, and the stopper member is movable between a retracted position and a stop position. In the retracted position, the return of the trigger lever set to the second position is not hindered, and in the stop position, the stopper member is inserted between the pressing member and the trigger lever, and the trigger lever set to the second position is moved to the second position. Prevents return to position 1.

  The pressing member is composed of, for example, a first portion extending in the push-down direction and a second portion extending in the direction orthogonal thereto, and the stopper member is slidably provided on the second portion and is movable between the retracted position and the stop position. And At this time, for example, when the trigger lever is opened with a passage hole through which the second portion of the pressing member is passed and the stopper member is set to the stop position, the stopper member is inserted into the passage hole so as to enter between the pressing member and the trigger lever. In addition, when the trigger lever is opened at the trigger lever through the second portion of the pressing member and the stopper member is at the first position with the stopper member being in the retracted position, the passage hole is partially blocked by the stopper member, The outer surface of the stopper member is flush.

  Then, when disposing, the trigger lever is rotated to the second position, the stopper member is moved to the stop position, and is inserted between the pressing member and the trigger lever, and the trigger lever is moved to the first position. To prevent it from returning.

  The invention according to claim 5 is a trigger type aerosol injector, comprising the trigger type aerosol injection device with a degassing stopper member according to any one of claims 1 to 4.

  According to the first to fourth aspects of the present invention, the stopper member is supported by the pressing member, and the stopper member is only movable between the retracted position and the stop position. In addition, there is no risk of inconvenience in use, and it is easy to prevent the stopper member from being easily removed, and the handling can be simplified. In addition, when discarding, with the trigger lever rotated to the second position, the stopper member is moved to the stop position so as to enter between the pressing member and the trigger lever, and the trigger lever is in the first position. Therefore, there is no need to prepare a separate tool or keep pushing the stem, and the degassing at the time of disposal can be easily performed, and the stopper member has a simple shape. It is possible to do this, and there is no worry of high costs.

  According to the fourth aspect of the present invention, when the trigger lever is opened at the trigger lever and the trigger lever is at the first position with the stopper member being in the first position, the stopper member is blocked with a stopper member. In addition, since the outer surfaces of the trigger lever and the stopper member are flush with each other, when the trigger lever is in the normal first position, the stopper member can be integrated with the trigger lever to improve the appearance.

  According to the fifth aspect of the invention, the trigger type aerosol injector is provided with the trigger type aerosol injection device with a degassing stopper member according to any one of the first to fourth aspects, so that handling is troublesome. Therefore, it is possible to easily vent the gas at the time of disposal without preparing a tool or continuously pushing the stem.

The best mode for carrying out the present invention will be described below with reference to the drawings.
In FIG. 1, the upper part of the trigger type aerosol injector by this invention is seen from diagonally upward. FIG. 2 shows the injector with the trigger lever in cross section when not in use.

  In the illustrated trigger type aerosol injector, a metal type trigger can such as aluminum or steel is used as a container 10 and is attached to the mouth of the container 10 and includes a trigger type aerosol injection device 12 with a degassing stopper member. And the contents, such as an insecticide, a chemical | medical solution, a cosmetic liquid, a detergent, a washing | cleaning liquid, and a paint, are accommodated in the container 10 with a propellant. The contents may be dissolved in the gas as the propellant, or may be present in the container 10 in a state separated from the gas.

  In FIG. 3, the longitudinal cross-section of the aerosol injection apparatus 12 with the stopper member for degassing is shown. As shown in FIG. 3, the aerosol injection device 12 includes a vertical cylindrical housing 14 having a step portion 13 in the middle. The housing 14 is provided with a large-diameter portion 15 on the step portion 13 and a small-diameter portion 16 below, and the inside of the large-diameter portion 15 communicates with the inside of the small-diameter portion 16.

  The small diameter portion 16 is press-fitted into the upper end portion of the pipe 17 and the pipe 17 is attached. The pipe 17 extends toward the bottom of the container 10 when the aerosol injection device 12 is attached to the mouth of the container 10. Then, the content is pushed up by the pressure of the propellant, and is put into the large diameter portion 15 from the small diameter portion 16 through the pipe 17.

  The large-diameter portion 15 has a plurality of vertical grooves 15 a on the inner peripheral surface, and is provided on the step portion 13 to provide a coil spring 18. Then, the stem 20 is placed on the coil spring 18. The stem 20 is provided with a head portion 21 at the lower portion, a neck portion 22 is provided on the head portion 21, and a cylindrical member attaching portion 23 is provided at the upper end portion.

  The neck portion 22 is provided with a through hole 22a that penetrates in the radial direction from the outer peripheral surface to the center. A discharge passage 23a is opened at the center of the cylindrical member mounting portion 23 and communicates with the through hole 22a.

  Then, an annular plate-like stem rubber (valve) 24, which is an elastic member, is attached to the neck portion 22, and the head portion 21 is placed in the large diameter portion 15 and placed on the coil spring 18. Thereby, together with the vertical groove 15a, the content discharge passage 25 is formed by the gap between the inner peripheral surface of the large diameter portion 15 and the outer peripheral surface of the head portion 21, and the stem 20 is stored in the housing 14 so as to be freely inserted and removed. The stem rubber 24 is fitted onto the large diameter portion 15.

  Thereafter, the stem 20 is passed through the center hole 26a of the mountain cap 26, the stem rubber 24 is compressed, and the mountain cap 26 is attached to the upper portion of the housing 14. The mountain cap 26 is formed with a tightening portion 26b that is curved in an inverted U shape at the outer peripheral edge, and the tightening portion 26b is crimped to the peripheral edge of the mouth of the container 10 via a gasket rubber 27 as shown in FIG. Then, the aerosol injection device 12 is attached to the mouth of the container 10 by projecting the stem 20 upward.

  FIG. 4 shows a longitudinal section of an aerosol injector. As can be seen from FIG. 4, the cover member 28 is attached to the container 10 covering the mouth of the container 10. The cover member 30 is provided with an inner cylinder part 30c, an intermediate cylinder part 30d, and an outer cylinder part 30e while projecting the cylindrical part 30b upward from the top part 30a, and extending it sequentially downward.

  The front end of the inner cylinder part 30c enters into the tightening part 26b and is lightly applied to it from the inside. The tip of the middle cylinder portion 30d is hooked from the outside to the jaw portion of the tightening portion 26b so that the cover member 30 does not come off from the container 10. The distal end of the outer cylindrical portion 30e extends to the outer periphery of the shoulder portion of the container 10 so as to have continuity with the outer shape of the container 10 so that it can maintain a sense of unity with the container 10 in appearance.

  Then, the stem fitting portion 32 a of the cylindrical member 32 is fitted to the cylindrical member mounting portion 23 of the stem 20. The cylindrical member 32 is provided with an elongated small-diameter cylindrical portion 32b, a medium-diameter cylindrical portion 32c, and a large-diameter cylindrical portion 32d in order from the top, and the above-described stem fitting portion 32a is formed in the large-diameter cylindrical portion 32d. The small diameter cylindrical portion 32 b and the medium diameter cylindrical portion 32 c are inserted into the first portion 34 of the pressing member 33.

  FIG. 5 shows the push-down member 33 as viewed from obliquely above. As can be seen from FIG. 5, the pressing member 33 is bent into an elbow shape at approximately 90 degrees, and the first portion 34 on the proximal end side extending in the push-down direction and the second portion 35 on the distal end side extending in the horizontal direction perpendicular thereto. And consist of And the 1st part 34 is a single pipe shape, and provides the circular engaging protrusion 33a and the elongate rib-shaped butting | protruding protrusion 33b extended downward from it on both upper sides.

  The second portion 35 has a double pipe shape and is composed of an outer cylinder portion and an inner cylinder portion slightly protruding from the outer cylinder portion, and the cylindrical base end 40a side of the nozzle holder 40 is fitted between them as shown in FIG. . A nozzle member 42 is attached to the tip end side of the nozzle holder 40, and a jet outlet 42 a provided in the nozzle member 42 is communicated with the discharge flow path 33 c in the inner cylinder portion of the second portion 35.

  Then, as shown in FIG. 4, a stop cap 36 is attached around the large-diameter cylindrical portion 32 d of the cylindrical member 32 and the first portion 34 of the pressing member 33. The stop cap 36 includes a cap portion 36a, a cylindrical portion 36b that protrudes concentrically upward from the top portion thereof, and a column portion 36c that extends obliquely upward from the shoulder portion of the cap portion 36a. Then, the cap part 36 a is fitted so as to cover the cylindrical part 30 b of the cover member 30. On the stop cap 36, a lock member 37 is attached to be rotatable around the first portion 34 of the pressing member 33.

  As can be seen from FIG. 6 and FIGS. 7A and 7B, the lock member 37 includes a skirt portion 37a fitted to the cylindrical portion 36b of the stopper cap 36, and a cylindrical portion 37b provided concentrically on the skirt portion 37a. , And a finger contact portion 37c extending radially from the outer periphery of the cylindrical portion 37b.

  In the cylindrical portion 37b, a step portion 37d is formed at the upper edge of the inner peripheral surface, and two escape recesses 37e are formed in a vertical groove shape downward from the step portion 37d with a 180 degree interval, and the inlet is tapered. 37f is provided. In addition, three click protrusions 37g are provided at the lower edge of the outer peripheral surface at intervals of 90 degrees and 180 degrees with the finger contact part 37c. Then, as shown in FIG. 4, one of the click protrusions 37g is elastically fitted to the click engagement portion 36e with a click feeling, and the rotation position of the lock member 37 is positioned at the lock position and the lock release position. To do.

  On the other hand, the support column 36c of the stop cap 36 is attached to the base end of the trigger lever 38 at the tip, and is rotatable from the first position shown in the drawing to the second position around the support shaft 39. The trigger lever 38 is bent at a right angle, and includes a peripheral surface portion 38b having a passage hole 38a through which the second portion 35 of the pressing member 33 passes and a side surface portion 38c provided to face both sides thereof. An engaging recess 38d is formed downward on the inner surface of the side surface portion 38c.

  In the trigger lever 38 of this example, the finger hanging portion 38e is extended, for example, so that the nurse can easily carry the finger hanging portion 38e by hooking it on a pocket or a belt, or the cleaner hooks the finger hanging portion 38e on the frame of the cleaning wagon. And make it easy to carry. Then, the engagement recess 38 d of the trigger lever 38 is engaged with the engagement protrusion 33 a of the pressing member 33.

  When not in use, the finger contact portion 37c of the lock member 37 is directed to the finger-hanging portion 38e side of the trigger lever 38 as shown in FIGS. 1 and 2, and the click projection 37g on the opposite side is shown in FIG. The click engagement portion 36e is fitted with a click feeling, and the lock member 37 is set to the lock position. Then, at this time, even if an attempt is made to place the finger on the finger hooking portion 38e and rotate the trigger lever 38, the abutting protrusion 33b of the pressing member 33 hits the stepped portion 37d of the lock member 37 and prevents the pressing member 33 from being pushed down. Thus, the rotation of the trigger lever 38 is restricted to prevent the stem 20 from being pushed.

  Now, when using this injector, from the state shown in FIG. 1 and FIG. 2, hold the container 10, apply a finger to the finger contact portion 37 c, and place the lock member 25 in any direction around the reciprocating direction of the stem 20. To the click engaging portion 36e with a click feeling, and the lock member 37 is set to the unlocked position.

  After that, when a finger is put on the finger hook portion 38e and the trigger lever 38 is turned counterclockwise about the support shaft 39 as shown in FIG. 8 and rotated from the first position to the second position, the engagement of the trigger lever 38 is achieved. The engaging protrusion 33a of the pressing member 33 is pushed by the mating recess 38d, and the abutting protrusion 33b of the pressing member 33 enters the escape recess 37e of the lock member 37 as shown in FIG. The stem 20 is pushed in with the cylindrical member 32, and the stem rubber 24 is elastically deformed to open the through hole 22a.

  Then, the contents of the container 10 are pushed up by the pressure of the propellant and are put into the large diameter portion 15 from the small diameter portion 16 through the pipe 17. Next, the content is introduced from the through-hole 22a to the discharge passage 23a of the stem 20 through the content discharge passage 25, is inserted into the flow path 32e of the cylindrical member 32 through the discharge passage 23a, and is ejected to the outside through the communication passage 33c. .

  When stopping the use, release the finger from the finger-hanging portion 38e to release the pushing of the pressing member 33, push up the stem 20 with the coil spring 18 to return the deformation of the stem rubber 24, close the through hole 22a, and close the through hole 22a. Stop jetting. Then, the finger is applied to the finger contact portion 37c, and the lock member 37 is rotated around the reciprocating direction of the stem 20 to prevent the pressing member 33 from being pushed down again as the lock position shown in FIG. To regulate.

  By the way, in the illustrated aerosol injector, the pressing member 33 supports the stopper member 50. The stopper member 50 is formed by integral molding using a resin material. For example, as shown in FIG. 10, the short cylindrical portion 51 and the lower portion of the short cylindrical portion 51 protrude toward one axial direction of the short cylindrical portion 51. And a surfboard-like top portion 53 provided on the upper side of the short tube portion 51 and protruding toward the other axial side of the short tube portion 51.

  The stopper member 50 is slidably attached to the second portion 35 such that the second portion 35 of the pressing member 33 is passed through the short cylinder portion 51 through the short cylinder portion 51 and the protruding portion 52 is applied from below. It is possible to move freely between the retracted position and the stop position. Then, as shown in FIGS. 1 to 9 described above, when the stopper member 50 is in the retracted position, the other side in the axial direction of the short cylindrical portion 51 is brought into contact with the first portion 34 of the pressing member 33 and the top portion 53 is moved. It fits into the end of the passage hole 38a without a gap. When the trigger lever 38 is in the first position, as shown in FIG. 1, a part of the passage hole 38 a is closed with the stopper member 50, and the peripheral surface portion 38 b of the trigger lever 38 and the outer surface of the top portion 53 of the stopper member 50. And the stopper member 50 is integrated with the trigger lever 38 to improve the appearance. At this time, as shown in FIGS. 8 and 9, even if the trigger lever 38 is rotated from the first position to the second position, the return from the second position to the first position is not hindered as described above. .

  However, after the trigger lever 38 is rotated from the first position to the second position, when the stopper member 50 is slid to the stop position as shown in FIGS. 11 and 12, the trigger lever 38 is rotated. The projecting portion 52 is inserted into the gap 55 between the pressing member 33 and the hole edge of the passage hole 38a, and is inserted between the pressing member 33 and the trigger lever 38, and the projecting portion 52 is sandwiched between them. The trigger lever 38 is prevented from returning to the first position. Therefore, when discarding, after the trigger lever 38 is rotated to the second position, the protruding member 52 is inserted into the passage hole 38a with the stopper member 50 as the stop position, and between the pressing member 33 and the trigger lever 38. By making it enter, the injection state of the propellant from the outlet 42a of the nozzle member 42 can be continued, and the propellant in the container 10 can be completely extracted.

  Since the stopper member 50 is supported by the pressing member 33 and the stopper member 50 is only movable between the retracted position and the stop position, there is no possibility that the whole is enlarged and inconveniences in storage and use. Further, it is easy to prevent the stopper member 50 from being easily removed, and the handling can be simplified. In addition, when disposing, the trigger lever 38 is rotated to the second position, and the stopper member 50 is moved to the stop position to enter between the pressing member 33 and the trigger lever 38. Since it is only necessary to prevent the return of the valve 38 to the first position, it is not necessary to prepare a separate tool or to keep pushing the stem 20, and the degassing at the time of disposal can be easily performed. The member 50 can be formed in a simple shape, and there is no worry of increasing the cost.

  In the illustrated example, as shown in FIGS. 4 and 12, positioning protrusions 56 and 57 of the stopper member 50 are provided at the passage hole 38 a position of the trigger lever 38 so as to protrude from the inner surface of the side surface portion 38 c, and The protrusion 56 holds the stopper member 50 so as not to easily move from the retracted position, and the two positioning protrusions 56 and 57 hold the stopper member 50 so as not to easily move from the stop position.

It is a top external appearance perspective view of the trigger type aerosol injector by this invention. It is a side view which shows the aerosol injector by making a trigger lever into a section in a non-use state. It is a longitudinal cross-sectional view of the aerosol injection apparatus with a degassing stopper member with which the aerosol injector is provided. It is a partial longitudinal cross-sectional view of an aerosol injector in the non-use state. It is a perspective view of the pressing member used with the aerosol injection device. It is a perspective view of the lock member used with the aerosol injection device. (A) is a plan view of the locking member, and (B) is a longitudinal sectional view along the line AA. It is a side view which shows the aerosol injector by making a trigger lever into a section in use condition. It is a fragmentary longitudinal cross-sectional view of the aerosol injector in the use condition. It is a perspective view of the stopper member used with the aerosol injection device. It is a top external appearance perspective view of the degassing state in the aerosol injector. It is the side view which showed the aerosol injector in the degassing state by making the trigger lever into a cross section. It is the side view which showed a part of conventional aerosol injector in cross section. It is the elements on larger scale which show the degassing state.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Container 12 Trigger type aerosol injection apparatus with degassing stopper member 33 Depressing member 34 First part of depressing member 35 Second part of depressing member 38 Trigger lever 38a Passing hole 42 Nozzle member 42a Ejection port 50 Stopper member

Claims (5)

With a degassing stopper member that attaches to the container and rotates the trigger lever from the first position to the second position to push down the pressing member and injects the contents of the container to the outside through the pressing member when in use In the trigger type aerosol injection device,
A stopper member is supported by the pressing member, and the stopper member is set to the second position between a retracted position that does not prevent the trigger lever from returning to the first position, and the pressing member and the trigger lever. A trigger type aerosol injection device with a degassing stopper member, wherein the trigger lever is movable to a stop position that enters the second position and prevents the trigger lever from returning to the first position.   The pressing member includes a first portion extending in a pressing direction and a second portion extending in a direction perpendicular thereto, and the stopper member is slidably provided on the second portion so as to be in the retracted position and the stop position. The trigger type aerosol injection device with a degassing stopper member according to claim 1, wherein the trigger type aerosol injection device is movable.   When the trigger lever is opened with a passage hole through which the second portion of the pressing member passes and the stopper member is in the stop position, the stopper member is inserted into the passage hole so as to enter between the pressing member and the trigger lever. The trigger type aerosol injection device with a degassing stopper member according to claim 2,   A passage hole through which the second portion of the pressing member is passed is formed in the trigger lever, and when the trigger lever is in the first position with the stopper member as the retracted position, a part of the passage hole is blocked with the stopper member. The trigger type aerosol injection device with a degassing stopper member according to claim 2, wherein the trigger lever and the outer surface of the stopper member are flush with each other.   A trigger type aerosol injector comprising the trigger type aerosol injection device with a degassing stopper member according to any one of claims 1 to 4.

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