JP2004329977A - Jet button with long nozzle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a jet button with a long nozzle constituted so as to suppress the lowering of sealability with the elapse of time. <P>SOLUTION: The tip end part of a nozzle part 15 is formed to a ball part 16, and a round annular ball opposed contact part 31 and ball holding pieces 33 for surrounding the ball part 16 are formed to a socket part 30. Arcuate ball pressing projections 35 are formed so as to be brought into contact with the back surface of the ball part 16 under pressure at a use position and the socket pressure contact pieces 17 brought into contact with the pieces 33 under pressure are provided to the nozzle part 15 and the inner peripheral surface regions 17b, which do not come into contact with the outer peripheral surfaces of the pieces 33 at a housing position but comes into contact therewith at the forward parts from the projections 35 at the use position, are formed to the inner peripheral surfaces thereof. The projections 35 come into contact with the upper surface region of the ball part 16 at the housing position and the regions 17b do not come into contact with the pieces 33 under pressure but the projections 35 come into contact with the outer peripheral surfaces of the forward parts under pressure at the use position to bent the pieces 33 by elasticity so as to allow them to approach mutually. The ball part 16 is pressed by the projections 35 to bring the ball opposed contact part 31 into contact with a front region 16a under pressure to ensure sealability. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention is directed to a socket formed on a rotor at a base end of a long nozzle at a front end of a nozzle provided on an injection button having a base end fitted to a valve stem protruding from a head of an aerosol container. When the long nozzle is pivoted to the downward storage position by rotatably connecting the nozzles, the contents are directly sprayed forward from the nozzle at the tip of the nozzle portion by the operation of pressing down the spray button, while the long nozzle is The present invention relates to a long nozzle-equipped ejection button that is ejected from the tip of a long nozzle when the nozzle is turned to a forward use position and the ejection port communicates with an inflow path of a socket portion.
[0002]
[Prior art]
As this kind of connecting portion, it is known from Document 1 that a cylindrical socket portion of a long rotor is rotatably connected to a disk-shaped portion at the tip of a nozzle. Conversely, according to Document 2, it is also known that a disk portion of a rotor is rotatably connected to a concavely curved socket portion at a nozzle tip. Thus, when the long nozzle is set downward along the container, the nozzle is ejected directly forward from the nozzle at the tip of the nozzle, and when the long nozzle is set to the horizontal use position, the nozzle is elongated from the nozzle. Injection can be performed from a forward position via a nozzle.
[0003]
[Patent Document 1]
JP-A-61-106365 [Patent Document 2]
JP-A-2002-248384
[Problems to be solved by the invention]
In the case of such a rotor, a long nozzle can be rotatably attached to the nozzle portion without using a ball joint. It is necessary to press the contact portion with the tip portion, and thus there is a problem that the sealability is reduced due to wear in the process of repeatedly rotating the rotor.
[0005]
In view of the above, an object of the present invention is to provide an ejection button with a long nozzle as described at the beginning, which can suppress the deterioration of the sealing property over time.
[0006]
[Means for Solving the Problems]
In order to achieve this object, according to the present invention, according to the present invention, a long end is provided at a distal end portion of a nozzle portion provided on a spray button whose base end portion is fitted to a valve stem protruding from a head of an aerosol container. When the long nozzle is rotated to the downward storage position by the rotatable connection of the socket formed on the rotor at the base end of the nozzle, the ejection button at the tip of the nozzle is operated by pushing down the ejection button. When the long nozzle is rotated to the forward use position, the ejection port communicates with the inflow passage of the socket portion, and the long nozzle is ejected from the tip of the long nozzle. In the injection button with a nozzle, the tip of the nozzle portion is formed as a spherical ball portion having an injection port at the center of the front area, and an inflow path is formed at the center, and a perfect circle which is in contact with the front area. Annular And a pair of ball holding pieces extending from both sides of the ball contacting portion so as to surround the side surface of the ball portion, having an inner peripheral surface having an arc-shaped cross section corresponding to the diameter of the ball portion. Is formed in the socket portion, and an arc-shaped ball pressing protrusion having an inner diameter smaller than the diameter is formed on the inner peripheral surface so as to press against the back area of the ball portion at the use position, and extends forward to the nozzle portion. A pair of socket press contact pieces are provided on both sides of the ball press piece that press against from both sides, and the inner peripheral surface of the socket press contact piece does not come into contact with the outer peripheral surface of the ball press piece in the retracted position, and the ball does not contact the use position. A socket press contact portion is formed which presses against the outer peripheral surface of the holding piece in a portion ahead of the ball pressing protrusion, and in the storage position, the ball pressing protrusion contacts the upper surface area of the ball portion, and the socket press contact portion contacts the ball holding piece. On the other hand, in the use position, the socket pressure contact portion presses against the outer peripheral surface of the front portion and elastically bends the ball holding pieces so as to approach each other. The part is pressed against the front area so as to secure the sealing property.
[0007]
In the retracted position where the injection button is pressed down, the ball holding piece does not press against the socket pressure contact piece due to its configuration in the storage position where the ball is ejected directly forward from the injection port of the ball section, and therefore the pressing of the ball section by the ball pressing projection is released. You. In the use position where the long nozzle is rotated forward, the ball holding piece is pressed against the socket pressing portion of the socket pressing piece, so that the ball pressing projection presses the ball portion by the elastic bending of the ball holding piece, and the ball is pressed. The contact portion is pressed against the front region of the ball portion to ensure the sealing property.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
An injection button with a long nozzle according to an embodiment of the present invention will be described with reference to FIGS. 1 to 3. The spray button 10 communicates with a fitting portion 11 fitted at its base end to a valve stem 2 protruding from the head of the aerosol container 1 containing, for example, an insecticide, and the fitting portion. A nozzle fitting portion 12 extending in the lateral direction and having a fitting inlet 12a at a distal end portion for fitting the base end portion 15a of the pipe-shaped nozzle portion 15, and is pressed down on the upper surface of the fitting portion 11. The fitting portion 11 is fitted through the operating opening 3a of the cover cap 3 covering the mounting cup mounted on the head of the aerosol container 1 to the valve stem 2 projecting upward from the mounting cup in a biased state. . Further, a long nozzle 25 is attached to the injection button 10, and the base end thereof is fitted into the connection part 24 of the rotor 20, and can be connected to the nozzle part 15.
[0009]
Although such a configuration is basically well known, the nozzle portion 15 is provided with a socket press-contact piece 17 which extends to the front according to the present invention, and which is described later. 15 are fitted to the outer peripheral surface 15a. A flow path 14 is formed in the nozzle portion 15 in the lateral direction, and a ball portion 16 which is swelled in a spherical shape is formed at a tip end thereof, and communicates with the flow path 14 at the center of the front area 16a. An injection port 19 is formed.
[0010]
On the other hand, a socket portion 30 rotatably connected to the ball portion 16 is formed at the base of the rotor 20. As shown in FIGS. 1 and 2, the socket portion has a cylindrical ball contact portion 31 having an inner peripheral surface formed as a conical inflow channel 22 and a tip portion abutting on the front area 16 a of the ball portion 16. And a pair of ball holding pieces 33 extending from both sides of the base of the ball contact portion toward the ejection button 10 and holding the ball portion 16 from both sides. The center line of the inflow channel 22 is coaxial with the horizontal center line of the flow path 14, and the tip of the ball contacting portion 31 is a perfect annular shape centered on the coaxial center line, and This annular strip shape makes it easy to exhibit elasticity.
[0011]
The ball holding pieces 33 are formed non-parallel to each other at an angle to the above-mentioned center line so as to be separated from each other as they extend to the vicinity of the base of the ball portion 16 and correspond to the diameter of the ball portion 16. An inner peripheral surface having an inner diameter and an outer peripheral surface having an outer diameter increased by a uniform thickness extend in an arc-shaped cross section. Furthermore, on the inner peripheral surface of the ball holding piece 33, the long nozzle 25 is set at the horizontal use position so as to press the ball portion 16 by pressing against the back region 16 b of the ball portion 16. An arc-shaped ball pressing projection 35 having an inner diameter smaller than the diameter of the ball portion 16 about the center line is formed.
[0012]
The inner peripheral surface of the pair of plate-shaped press contact piece main bodies 17a on both sides of the socket press contact piece 17 is a flat surface having a separation distance enough to press the front end of the outer surface of the ball holding piece 33 at the use position and bend inward. And are substantially parallel to each other. The vertical width of the press-contact piece main body 17a is set to be larger than the diameter of the ball portion 16 so that the tip of the ball holding piece 33 that has rotated vertically in the storage position does not protrude upward. In addition, in the region ahead of the inner peripheral surface regions 17b on both sides functioning as a socket press contact portion, the distance between them is relatively set so as not to come into contact with the outer peripheral surface of the ball holding piece 33 at the storage position of the long nozzle 25. A stepped receding surface 17c is formed to increase the size.
[0013]
Since each of the above-described parts is a molded product made of a synthetic resin, bending elasticity is given to the ball holding piece 33 so as to bend, and each part is given a fitting property. At the time of assembly, the fitting portion 11 is fitted to the valve stem 2 at the base end, and the fitting inlet 12a of the nozzle fitting portion 12 is set to the distal opening 3b of the cover cap 3. In a state where the nozzle portion 15 is fitted to the nozzle portion 15 through the fitting hole 18 of the socket pressure contact piece 17, the nozzle portion 15 is fitted to the fitting inlet 12a, and the rotational position of the socket pressure contact piece 17 is set in the vertical direction. The base end surface is brought into contact with the front end surface of the nozzle fitting portion 12. Next or first, the ball holding piece 33 is rotated in the vertical direction so as to hold the ball portion 16 and inserted into the socket press contact piece 17.
[0014]
The operation of the injection button 10 with the long nozzle configured as described above is as follows. As shown in FIG. 3B, in a state where the long nozzle 25 is stored in a bent state along the side surface of the aerosol container 1, the injection port 19 is located in the gap between the ball holding pieces 33 on both sides, so that the injection is performed. When the button 10 is pressed down, the fuel is injected directly forward. On the other hand, as shown in FIG. 3A, when the long nozzle 25 is used and pressed down while being rotated to the horizontal position, the content liquid flows from the injection port 19 through the inflow path 22 to the long nozzle 25. Is injected forward using the tip of the nozzle as an injection port.
[0015]
In the storage position, the socket portion 30 is restrained from dropping downward by the ball pressing protrusion 35 in contact with the upper surface area of the ball portion 16, and is moved in the front-rear direction by the contact of the arc-shaped ball holding piece 33 corresponding to the diameter. The socket portion 30 is held in a connected state with the ball portion 16 in a state in which the falling of the ball portion 16 is restrained and the ball contact portion 31 is prevented from coming off upward by the contact of the ball contact portion 31. Further, the ball holding piece 33 faces the retreating surface 17c of the socket pressing piece 17 with a gap therebetween, so that the compression holding of the ball holding piece 33 by the socket pressing piece 17 is released, and the ball pressing portion 35 by the ball pressing protrusion 35 is released. The pressure contact for securing the sealing performance of the ball portion 31 to the ball portion 16 is released.
[0016]
On the other hand, at the time of use, the ball pressing protrusion 35 of the ball holding piece 33 rotates behind the ball portion 16 and abuts on the rear surface region 16b, and the tip of the outer peripheral surface ahead of the ball pressing protrusion 35 serves as a socket pressing portion. Is pressed against the inner peripheral surface region 17b of the ball, and the ball holding piece 33 is bent by the elastic reaction force to press the ball portion 16 forward with the ball pressing protrusion 35, so that the ball contact portion 31 The sealing state is ensured by pressing against the front area 16a of the portion 16.
[0017]
As described above, at positions other than the vicinity of the use position of the long nozzle 25, the pressure contact between the socket portion 30 and the ball portion 16 is released, and wear of the socket portion 30 due to repetition of the rotation operation is suppressed. The wear of the ball portion 16, the ball pressing protrusion 35 and the ball contact portion 31 is also compensated by the pinching force accompanied by the above, so that the sealing performance is guaranteed for a long time. In addition, the sealing performance itself is also improved by the bending of the ball contact portion. Further, it is not necessary to form the socket portion into a perfect spherical shape.
[0018]
As another embodiment, the ball holding pieces 33 are not formed diagonally as described above, but are formed parallel to each other on both sides, and hold the ball near the boundary with the retreating surface 17c of the socket press contact piece 17. The piece 33 may be a socket press-contact portion for slightly bending inward. Further, the ball holding piece is not formed diagonally, or is formed aslant so that the inner peripheral surfaces on both sides thereof gradually separate from each other as the socket press-contacting piece moves forward, It is also conceivable that an intermediate portion is used as a socket pressure contact portion. Furthermore, the outer peripheral surfaces on both sides of the ball holding piece and the inner peripheral surfaces on both sides of the socket press contact piece are made substantially parallel, and the inner peripheral surface at the tip end portion of the socket press contact piece is terminated as a socket press contact portion, and the side of the ball portion is not surrounded. It is also conceivable to form them so short.
[0019]
FIG. 4 shows a socket and a ball portion according to still another embodiment, and the same or equivalent portions as those described above are denoted by the same reference numerals. The pair of socket pressing pieces 17A on both sides and the pair of ball holding pieces 33A on both sides extend with the same thickness, and the outer peripheral surfaces on both sides of the ball holding piece 33A and the inner peripheral surfaces on both sides of the socket pressing piece 17A are substantially bent. Close to each other to the extent that they do not occur. On the inner peripheral surfaces on both sides of the socket press contact piece 17A, upper and lower linear projections 38 are formed as socket press contact portions at positions ahead of the ball pressing projections 35 as viewed from the ball holding piece 33A. When the appearance is not taken into consideration, the forward end portion of the protruding portion 38 can be omitted to shorten the socket pressure contact piece 17A.
[0020]
【The invention's effect】
According to the present invention, the ball contact portion of the socket portion is pressed against the ball portion so as to secure the sealing property only in the vicinity of the use of the long nozzle, so that the ball contact portion is longer than in the case where the ball portion is constantly pressed. The abrasion of the mutual seal area due to the rotation operation of the length nozzle is suppressed. Therefore, the sealing performance is guaranteed for a long time.
[Brief description of the drawings]
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows a main part of an ejection button with a long nozzle according to an embodiment of the present invention. FIG. 1A is a cross-sectional view of a socket portion when a long nozzle is used, and FIG. C is a rear view of the socket. FIG.
FIG. 2 is an exploded perspective view of the injection button with a long nozzle.
FIG. 3 is a perspective view showing a state in which the injection button with the long nozzle is attached to an aerosol container. FIG. 3A is a perspective view showing a use state of the long nozzle, and FIG. .
FIG. 4 is a sectional view corresponding to FIG. 1A of an ejection button with a long nozzle according to another embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Aerosol container 10 Injection button 14 Flow path 15 Nozzle part 16 Ball part 16a Front area 16b Back area 17, 17A Socket pressure contact piece 17c Retreat surface 19 Injection port 20 Rotor 22 Inflow path 25 Long nozzle 30 Socket part 31 Ball contact part 33, 33A Ball holding piece 35 Ball pressing projection

Claims (5)

The socket formed on the rotor at the base of the long nozzle is rotatable at the tip of the nozzle provided on the injection button whose base is fitted to the valve stem protruding from the head of the aerosol container. By connecting, when the long nozzle is turned to the downward storage position, the contents are directly jetted forward from the jet at the tip of the nozzle portion by the operation of pressing down the jet button, while the long nozzle is turned forward. When rotated to the use position, in the ejection button with a long nozzle that is ejected from the tip of the long nozzle by the ejection port communicating with the inflow path of the socket portion,
The tip of the nozzle portion is formed as a spherical ball portion having an injection port at the center of the front area, and an inflow path is formed at the center, and a perfectly annular ball contacting the front area. A portion and a pair of ball holding pieces on both sides extending from both sides of the ball contact portion so as to surround the side surface of the ball portion with an inner peripheral surface having an arc-shaped cross section corresponding to the diameter of the ball portion. An arc-shaped ball pressing projection having an inner diameter smaller than the diameter is formed on the inner peripheral surface so as to be formed on the socket portion and pressed against the back surface region of the ball portion at a use position,
A pair of socket pressure contact pieces are provided on both sides that extend forward to the nozzle portion and press against the ball holding pieces from both sides, and on the inner peripheral surface of the socket pressure contact pieces, at the storage position, on the outer peripheral surface of the ball holding pieces. A socket press-contact portion that does not abut, and is in press contact with the outer peripheral surface of a portion ahead of the ball pressing protrusion in the ball holding piece in the use position is formed,
In the retracted position, the ball pressing protrusion contacts the upper surface area of the ball portion, and the socket pressing portion does not press against the ball holding piece. By pressing against the outer peripheral surface and elastically bending the ball holding pieces so as to approach each other, the ball pressing portion presses the ball portion to secure the sealability of the ball contacting portion to the front area. Injection button with a long nozzle, characterized in that it is brought into pressure contact with the nozzle. The socket pressure contact piece extends to the side of the ball portion, and the planar inner peripheral surfaces on both sides of the socket pressure contact piece are formed as socket pressure contact portions. 2. The ejection button with a long nozzle according to claim 1, wherein the peripheral surface area is formed as a receding surface so that an outer peripheral surface of the ball holding piece does not abut at the storage position. The outer peripheral surfaces of both sides of the ball holding piece are formed obliquely so as to gradually and largely separate from each other as they extend forward, and the tip of the outer peripheral surface of the ball holding piece is used at the time of use. The ejection button with a long nozzle according to claim 2, wherein the ejection button is pressed against a flat inner peripheral surface. The inner circumferential surfaces on both sides of the socket pressure contact piece are formed obliquely so as to gradually and largely separate from each other as they extend forward, and the tip of the outer peripheral surface of the ball holding piece is used when the socket pressure contact piece is used. The injection button with a long nozzle according to claim 2, wherein the injection button is pressed against a flat inner peripheral surface as a socket pressure contact portion. The outer peripheral surfaces on both sides of the ball holding piece and the inner peripheral surfaces on both sides of the socket pressure contact piece are close to each other and substantially parallel to each other, and a projection is formed on the inner peripheral surface as a socket pressure contact portion. The injection button with a long nozzle according to claim 1.

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