JP2008056294A - Pump nozzle head - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a user-friendly nozzle head of a pump, which shows excellence in operability and storage by enabling the tip end of a nozzle tube to be opened and closed with a simple structure and easy operation. <P>SOLUTION: In the nozzle head provided with a nozzle tube on the side of a head body having an upper surface of a top wall as a pressed surface by hand, the nozzle tube is made of an elastomer, one half relative to the axis of the nozzle tube is formed as a half shell part, the other half part is formed as an elastically reversibly deformable reversible part at least at the tip end of the nozzle tube, and the reversible part is reversibly deformed into a depressed shape so as to be restored to the original shape to tightly close the tip end of the nozzle tube. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a nozzle head of a pump that is assembled to a top tube portion of a container body that contains a content liquid and that dispenses the content liquid by a pressing operation.

A pump that shampoos, rinses, body soaps, hand soaps, and also contains liquids such as cosmetic liquids and dispenses liquids by pushing down the nozzle head. It is assumed that the nozzle cylinder is relatively large and extends laterally outward, so that the content liquid poured out is directly poured into the palm.
Japanese Patent Laid-Open No. 09-012052

  As shown in FIG. 5, the general structure of the nozzle head of the pump described above is provided with a nozzle cylinder 103 extending laterally outward on the side surface of the head main body 102 having the upper surface as a pressing surface by hand, The head main body 102 includes a head neck cylinder 106 having an upper end opening the nozzle passage 104 of the nozzle cylinder 103 and a valve pressing piece 107 positioned in the center of the head neck cylinder 106.

  And this nozzle head 101 is attached to the upper end portion of the stem 111, which is a part of the main part of the pump P, in which the ball valve 112 is housed, and the head neck tube 106 is tightly and immovably fitted. Due to the downward displacement of the stem 111 accompanying the depression of the head 101, the liquid content that has risen in the pump while opening the ball valve 112 is poured out to the target location through the nozzle passage 104.

  Note that the combination of the guide cylinder 108 provided in the nozzle head 101 and the support cylinder 113 provided on the main portion side of the pump P stabilizes the up-and-down displacement posture of the nozzle head 101 without inclining to the illusion. To keep it constant.

  Here, in the nozzle head 101 as described above, after the content liquid is poured out, depending on the viscosity of the content liquid, dripping may occur and the surroundings may be soiled, and depending on the type of the content liquid, it may remain in the nozzle passage. There is a problem that the content liquid is solidified or deteriorated.

  Therefore, the present invention was devised to solve the above-described problems in the prior art, and has a simple structure and an object to enable opening and closing of the tip of the nozzle cylinder with a simple operation. An object of the present invention is to provide a nozzle head of a pump that is excellent in storability and easy to use.

Among the present invention for solving the above technical problems, the means of the invention according to claim 1 is:
In the nozzle head provided with a nozzle cylinder extending laterally outward on the side surface of the head main body with the top wall upper surface as a pressing surface by hand,
The nozzle tube is made of elastomer,
One half of one side of the central axis of the nozzle cylinder is a half shell,
Forming the other half on the other side half at the tip part of the nozzle cylinder in the reversing part capable of elastic reversal deformation,
The reversing part is reversely deformed into a depressed shape so that it can be restored to its original shape in the half shell part, and the tip of the nozzle cylinder is closed and sealed,
It is in.

With the above-described configuration according to claim 1, by making the nozzle cylinder flexible and capable of elastic recovery to its original shape, it is made of an elastomer that can be greatly deformed.
The tip of the nozzle tube can be easily closed in a closed state by reversing and deforming in a depressed manner by pushing the reversing part into the half shell with the fingertip.

And since the reversing part is stably held in the reversed state, it is possible to continuously maintain this sealed state, to prevent liquid dripping during storage, and to solidify the content liquid remaining in the nozzle passage. Alteration can be prevented.
In addition, most of the content liquid remaining in the nozzle cylinder can be discharged to the outside while the nozzle cylinder is inverted and deformed after use. From this point, it is possible to repeat the process without solidifying the content liquid. Can be used.

  Then, when used next time, the nozzle tube can be picked up with a fingertip, the reversing portion is pushed out from the half shell portion, and restored to its original shape by an elastic restoring force, so that the nozzle tube can be opened. In addition, by reducing the thickness of the reversing part, the pump can be operated in the closed state to restore the original shape with the momentum of the liquid content.

  The means of the invention described in claim 2 is that, in the invention described in claim 1, an inversion line is formed along the boundary between the half shell portion and the inversion portion.

  According to the configuration of claim 2, by pushing the reversing portion into the half shell portion, the reversing portion can be smoothly reversed and deformed in a depressed shape with the reversing line as a base end, and this reversed deformation state Can be maintained more stably.

  The means of the invention described in claim 3 is that, in the invention described in claim 1 or 2, the half shell portion is arranged in the upper half and the inversion portion is arranged in the lower half.

According to the above configuration of the third aspect, by disposing the reversing portion below the half shell portion, the reversing portion is not reversed by an erroneous operation and the nozzle cylinder is not closed.
Of course, the arrangement of the half shell part and the inversion part is not limited to the above arrangement, and can be appropriately selected depending on the purpose and method of use. For example, the inversion part can be on the upper side, It can also be arranged.

  According to a fourth aspect of the present invention, in the invention of the first, second or third aspect, the half shell portion is formed in a semicircular arc shape, and the inversion portion is formed in a semicircular arc shape having a slightly smaller diameter than the half shell portion. ,It is in.

  According to the above configuration of the fourth aspect, the inversion portion can be smoothly inverted and deformed in a depressed shape so that the inner peripheral surface of the inversion portion is along the inner peripheral surface of the half-shell portion.

  According to a fifth aspect of the present invention, in the first, second, third, or fourth aspect, the thickness of the inversion portion is set to 2/3 or less of the thickness of the half-shell portion.

  According to the above configuration of the fifth aspect, it is possible to more easily and smoothly achieve the inverted reversal deformation of the reversing portion and the restoration thereof.

  According to a sixth aspect of the present invention, in the first, second, third, fourth, or fifth aspect of the invention, the base end portion of the inversion portion is configured to be non-invertible, and the degree of inversion deformation of the inversion portion is the base end. It is in that it gradually increased from the part to the tip.

  According to the above configuration of the sixth aspect, the reverse deformation can be easily restored to the original shape by moving the nozzle tube from the base end portion to the tip end portion so as to be picked by the fingertip.

  According to a seventh aspect of the invention, there is provided the invention according to the first, second, third, fourth, fifth or sixth aspect, wherein the tip portion of the nozzle tube is curved downward.

  According to the above configuration of the seventh aspect, by curving the tip portion of the nozzle cylinder downward, for example, the head main body is pressed with one hand, and the content liquid is surely poured into the palm of the pressing hand. Can do.

  Here, since the nozzle tube is made of an elastomer that is flexible and can be deformed greatly in a state where it can be elastically restored to its original shape, it can be easily injected into a shape in which the tip of the nozzle tube is greatly curved. Molding is possible.

  According to an eighth aspect of the present invention, in the first, second, third, fourth, fifth, sixth or seventh aspect, the portion extending from the nozzle tube to the cover portion covering the top wall of the head body in a covering form is an elastomer. It is formed integrally, and the cover portion is assembled and fixed to the head body together with the nozzle cylinder.

  Normally, the nozzle body made of a hard resin and the nozzle cylinder made of an elastomer are each manufactured by injection molding and separately assembled. Thus, the assembly and fixing of the elastomer part to the head main body part can be made more reliable.

  In addition, the top wall that becomes the pressing surface is covered with a cover made of elastomer, which prevents slipping of the fingertip during pressing, and can also provide a soft tactile feel, making it easier to use It can be.

  According to a ninth aspect of the present invention, in the first, second, third, fourth, fifth, sixth, seventh or eighth aspect of the invention, the head body is used as an insert material and the elastomer portion is injection molded.

  In the ninth aspect, the elastomer portion refers to a portion formed of an elastomer such as a nozzle tube portion or a portion from the nozzle tube to the cover portion. According to the above configuration, the head body is used as an insert material, and the nozzle body or the elastomer part from the nozzle cylinder to the cover part is injection-molded, so that the head body and the elastomer part are integrated into a nozzle head. The assembly can be fixed more reliably by using the undercut portion.

Since the present invention has the above-described configuration, the following effects can be obtained.
In the first aspect of the invention, the tip of the nozzle cylinder can be easily closed in a sealed state by reversing and deforming in a recessed manner by pushing the reversing part into the half-shell part with a fingertip. Liquid dripping during storage can be prevented, and solidification and alteration of the content liquid remaining in the nozzle passage can be prevented.
In addition, most of the content liquid remaining in the nozzle cylinder can be discharged to the outside while the nozzle cylinder is inverted and deformed after use. From this point, it is possible to repeat the process without solidifying the content liquid. Can be used.

  Then, when used next time, the nozzle tube can be picked up with a fingertip, the reversing portion is pushed out from the half-shell portion, and restored to its original shape by an elastic restoring force, and the nozzle tube can be opened.

  In the invention of claim 2, by pushing the reversing part into the half-shell part, the reversing part can be smoothly reversed and deformed in a recessed shape with the reversing line as a base end. Can be maintained more stably.

  In the invention according to claim 3, by disposing the reversing portion below the half shell portion, the reversing portion is not reversed by an erroneous operation and the nozzle cylinder is not closed.

  In the invention of claim 4, the half shell portion is formed in a semicircular arc shape, and the inversion portion is formed in a semicircular arc shape having a slightly smaller diameter than the half shell portion, so that the inner peripheral surface of the inversion portion is a half shell. The inversion part can be smoothly inverted and deformed in a depressed shape along the inner peripheral surface of the part.

  In the invention according to claim 5, by setting the thickness of the reversal part to 2/3 or less of the thickness of the half shell part, the inverted reversal deformation of the reversal part and its restoration can be made easier. Can be achieved smoothly.

  According to the sixth aspect of the present invention, the reverse deformation can be easily restored to the original shape by moving the nozzle tube from the base end portion to the tip end portion by picking it with the fingertip.

  In the invention according to claim 7, by curving the tip of the nozzle tube downward, for example, the head body is pressed with one hand, and the content liquid is surely poured into the palm of the pressing hand. Can be made.

  In the invention according to claim 8, by making the elastomer including the cover part, it is possible to more reliably fix the elastomer part to the head main body part. Further, the top wall serving as the pressing surface is covered with a cover made of an elastomer so that the fingertip can be prevented from slipping during pressing, and a soft tactile sensation can be achieved.

  According to the ninth aspect of the present invention, the head main body is used as an insert material, and the nozzle body or the elastomer portion from the nozzle tube to the cover portion is injection-molded so that the head main body and the elastomer portion are integrated into a nozzle head. The assembly can be fixed more reliably by using the undercut portion.

Embodiments of the present invention will be described below with reference to the drawings.
1 to 4 illustrate an embodiment of the head of the nozzle of the present invention. FIG. 1 is a side view of the nozzle head 1 shown in a partially broken state in a state of being attached to the top of the pump P. FIG. FIG.

  This nozzle head 1 is provided with a nozzle cylinder 3 extending laterally outwardly on the side of a top cylindrical nozzle body 2, and the head body 2 is formed from a top wall 5 and a guide cylinder forming an outer peripheral wall. A head neck cylinder 6 is provided in an open state, and a head neck cylinder 6 is opened on the inner side of the nozzle cylinder 4 that opens to the tip of the nozzle cylinder 3 at the upper end.

  The head main body 2 is made of polypropylene resin, and the portion from the nozzle cylinder 3 to the cover portion 7 that covers the top wall 5 in a covering manner is an elastomer portion E that is integrally formed of elastomer. A part of the nozzle passage 4 is formed in front of the cover portion 7.

  The nozzle head 1 is a head neck tube 6, and is fitted tightly and immovably on the upper end of a stem 11 having a ball valve 12 that is a part of the main part of the pump P. Due to the downward displacement of the stem 11 accompanying the depression, the liquid content that has risen in the pump while opening the ball valve 12 is poured out through the head neck 6 and the nozzle passage 4 to the target location.

  The stem 11 having a cylindrical shape is inserted to the stepped portion where the limit position with the fitting assembly of the head neck tube 6 is set, and a ball seat surface is formed by surrounding an inner collar piece on the inner peripheral surface. 12 is disposed. Further, the upper limit position of the ball valve 12 is determined by a presser piece 14 disposed on the inner peripheral surface of the head neck tube 6 and having a flow path in the vertical direction.

  Note that the combination of the guide cylinder 8 suspended from the head body 2 in a form surrounding the nozzle neck 6 and the support cylinder 13 provided on the main portion side of the pump P causes the nozzle head 1 to move up and down. It is intended to maintain a stable and constant without tilting to delirium.

  In the nozzle head 1 of the present embodiment, as described above, the portion from the nozzle cylinder 3 to the cover portion 7 is an elastomer portion E, and this elastomer portion E is inserted with a head body 2 made of polypropylene resin that has been injection-molded in advance. The material is injection molded, and is firmly assembled and fixed to the head body 2 in an undercut shape.

As the elastomer, styrene / butadiene / styrene block copolymer elastomers, olefin elastomers, urethane elastomers, and polyester elastomers having large elasticity and sufficient flexibility are used.
By covering the top wall 5 serving as a pressing surface with a cover 7 made of such an elastomer, slipping of the fingertip during pressing can be prevented, and a soft tactile sensation can be achieved.

  In this embodiment, the nozzle cylinder 3 extends straight from the head body 2 in the horizontal direction. However, as can be seen from FIG. 4A, which is a front view of the nozzle cylinder 3, the nozzle cylinder 3 has an inclined step shape. The upper semicircular arc portion is the normal thick half shell portion 21 and the lower semicircular arc portion is the reversal portion 22 formed relatively thin.

  And the inversion part 22 is shape | molded by the slightly small diameter with respect to the half-shell part 21, The thickness is made into 2/3 or less of the half-shell part 21, This inversion part 22 makes the above-mentioned inversion line 23 a base point, It can be easily inverted and deformed into a depressed shape in the half-shell portion 21 by pushing it in from the lower side with a fingertip.

  FIGS. 3 and 4B show a state in which the reversing portion 22 has been deformed by reversal. As illustrated in FIG. The inner peripheral surface of the portion 22 is in close contact with the inner peripheral surface of the half-shell portion 21 so that the nozzle passage 4 can be closed in a sealed state.

  As shown in FIG. 3, the base end portion 24 of the nozzle cylinder 3 is connected to a portion that is formed thick and is assembled and fixed to the head main body 2, so that it cannot be inverted and deformed. FIG. As shown in FIG. 3, the semicircular arc shape is held as it is without being deformed, and the inverted deformation of the reversing portion 22 is seen from the base end portion 24 of the nozzle tube 3 as shown in FIG. It gradually increases toward the tip and is completely reversed near the tip.

The reversal deformation state of the reversing portion 22 is stably maintained, and after the content liquid has been poured out, the reversing portion 22 is reversibly deformed in this manner to close the nozzle passage 4 in a sealed state, thereby dripping the liquid. It can be stored in a non-contained state, and further, solidification and alteration of the content liquid remaining in the nozzle passage 4 during storage can be effectively prevented.
Since most of the content liquid remaining in the nozzle cylinder 3 can be discharged to the outside while the nozzle cylinder 3 is inverted and deformed after use, it can be repeated without causing the content liquid to solidify from this point. It can be used stably.

And, in the next use, the reversing part 22 is pushed out from the half-shell part 21 so that both side surfaces of the nozzle cylinder 3 are picked with the fingertips, and the elastic restoring force is used to obtain the original shape. Can be restored.
In the nozzle head of the present embodiment, as described above, the reverse deformation of the nozzle cylinder 3 gradually increases from the base end portion 24 to the tip end, so that the both ends of the nozzle cylinder 3 are gripped by the fingertips. It can be easily restored to its original shape by moving from 24 to the tip.
In addition, the content liquid can be caused to flow in the nozzle cylinder 4 by the operation of moving the pump P up and down, and the pressure can be restored to the original shape.

As mentioned above, although embodiment of this invention was described along the Example, the effect of this invention is not limited to these Examples.
The pump shown in FIG. 1 is only an example of a pump used in combination with the nozzle head of the present invention, and the pump used is not limited to the one with a ball valve, and is a spring-type composition. All kinds of pumps such as resin valves can be used.

  In the above embodiment, the nozzle cylinder 3 has a shape extending linearly in the horizontal direction. However, since the nozzle cylinder 3 is made of an elastomer, it can be injection-molded even if the tip portion is greatly curved downward, and the dispensing direction is downward. In this way, the content liquid can be poured into the palm of the hand, making it easy to use.

Moreover, although the example from which the part from the nozzle cylinder 3 to the cover part 7 was formed integrally and made into the elastomer part E was shown, this assembly fixing is not necessarily limited to insert molding, The flexibility of an elastomer is utilized. The assembly can be fixed in a later process.
On the other hand, when the insert molding is used, the undercut portion can be easily formed, so that only the nozzle tube 3 can be an elastomer portion and can be firmly assembled and fixed to the head body 2.

  The nozzle head of the present invention provides a nozzle head that can be easily opened and closed with a simple structure and a simple operation, is excellent in operability and storage, and is easy to use. A wide range of applications can be expected in combination with pumps.

It is a side view which shows one Example of the nozzle head of this invention partially fractured | ruptured. It is a top view of the nozzle head of FIG. It is a vertical side view which shows the state which reversed the deformation | transformation part in FIG. (A) is a front view of the nozzle cylinder part of FIG. 1, (b) is a front view of the nozzle cylinder part of FIG. It is a vertical side view which shows the prior art example of a nozzle head.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1; Nozzle head 2; Head main body 3; Nozzle pipe | tube 4; Nozzle channel | path 5; Top wall 6; Head neck pipe | tube 7; Cover part 8; Half shell portion 22; reversing portion 23; reversing line 24; base end portion 101; nozzle head 102; head body 103; nozzle tube 104; nozzle passage 106; head neck tube 107; Ball valve 113; support cylinder E; elastomer part P; pump

Claims (9)

The top wall (5) is a nozzle head provided with a nozzle cylinder (3) extending laterally outward on the side surface of the head body (2) with the upper surface as a pressing surface by hand, the nozzle cylinder (3) The half of the nozzle cylinder (3) with respect to the central axis of the nozzle cylinder (3) is a half shell (21), and the other half of the nozzle cylinder (3) is elastically inverted so that the other half can be elastically inverted and deformed. Formed in the portion (22), the reversing portion (22) is inverted and deformed in a recessed shape so that it can be restored to its original shape in the half shell portion (21), and the tip of the nozzle cylinder (3) is closed in a sealed manner. Pump nozzle head. The pump nozzle head according to claim 1, wherein a reversal line (23) is formed along a boundary between the half shell portion (21) and the reversal portion (22). The pump nozzle head according to claim 1 or 2, wherein the half shell (21) is arranged in the upper half and the reversing part (22) is arranged in the lower half. The pump nozzle head according to claim 1, 2 or 3, wherein the half shell part (21) is formed in a semicircular arc shape, and the inversion part (22) is formed in a semicircular arc shape having a slightly smaller diameter than the half shell part (21). . The nozzle head of the pump according to claim 1, 2, 3 or 4, wherein the thickness of the reversing part (22) is set to 2/3 or less of the thickness of the half shell part (21). The base end portion (24) of the reversing portion (22) is configured so as not to be reversible, and the degree of reversal deformation of the reversing portion (22) is gradually increased from the base end portion (24) to the front end. The nozzle head of the pump according to 1, 2, 3, 4 or 5. The pump nozzle head according to claim 1, 2, 3, 4, 5 or 6, wherein the tip of the nozzle cylinder (3) is curved downward. A part extending from the nozzle cylinder (3) to the cover part (7) covering the top wall (5) of the head body (2) in a covering form is integrally formed of an elastomer, and together with the nozzle cylinder (3), the cover part The pump nozzle head according to claim 1, 2, 3, 4, 5, 6 or 7, wherein (7) is assembled and fixed to the head body (2). The pump nozzle head according to claim 1, 2, 3, 4, 5, 6, 7 or 8, wherein the head body (2) is an insert material and the elastomer part (E) is injection-molded.

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