JPH0317958Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a sprayer, and its purpose is to integrally attach a nozzle extension body to the sprayer body, which can provide good spray usage conditions.

Atomizers that are attached to the mouth of a bottle containing a liquid using an assembly cap and that spray the liquid inside the bottle by operating a lever have become widely used. Among sprayers, the one shown in FIGS. 1 and 2 is known as one that has a simple structure and exhibits stable spraying operation.

The specific structure of the main body of the sprayer shown in FIGS. 1 and 2 will be explained with reference to FIG. The cap 15 to be attached, the intake 17 that constitutes the first check valve component and the cylinder mechanism part, the body 29 that is assembled to this intake 17 and forms the assembly part of the lever 41, and the piston part of the cylinder mechanism. a trigger 34 having a portion forming a second check valve; a lever 41 that moves the piston piece 36 forming the piston portion forward and backward by moving the trigger 34 up and down; It consists of a main nozzle cap 40.

The cap 15 has a structure in which a thread is formed on the inner peripheral surface of a cylindrical body having a top plate with a hole 16 formed in the center.

The intake 17 has an outer cylindrical wall 18 and an inner cylindrical wall 19 standing upright on a circular flat plate-shaped bottom plate 20 that is engaged with the top plate of the cap 15 from below, and with an interval between them. The cylinder tube 21 is formed by extending and hanging downward as it is.

A suction pipe 23 whose lower end is positioned on the bottom surface of the bottle body B is attached to the lower end of the cylinder tube 21, and near the lower end of the cylinder tube 21, a tapered tube shape that expands upward is attached. Molded valve seat cylinder piece 2
2 is provided, and by assembling a valve ball 24 into this valve seat cylinder piece 22, a first check valve is constructed.

Inside the cylinder tube 21, there is a presser rod 27 for preventing the valve ball 24 from leaving the valve seat tube piece 22;
A spring 28 is provided.

A body 29 that is assembled to the outer cylinder wall 18 and inner cylinder wall 19 of the intake 17 that protrudes from the hole 16 onto the cap 15 is attached to an assembled cylinder 30 that fits into the outer cylinder wall 18.
, a holding cylinder 31 that fits tightly into the inner cylinder wall 19 , and a mounting wall piece 32 for locking the lever 41 .
It is composed of.

The assembled cylinder 30 connects the body 29 to the intake 17
The holding cylinder 31 is a part for assembling and fixing to the cylinder cylinder 21, and is configured to achieve a strong assembly by using an undercut or the like. It is a part that holds the guide cylinder 35 of the trigger 34 and sets the retraction limit (in the case of the embodiment shown in FIG. 3, the upward limit) of the piston piece 36 so that the guide cylinder 35 of the trigger 34 is held.

Trigger 34 that constitutes the main part of the spray function part
The piston piece 36 assembled inside the cylinder tube 21 is assembled and fixed to the lower end with the outer circumferential surface in close contact with the inner circumferential surface of the cylinder tube 21, and the holding tube 3
A guide tube 35 is tightly and slidably assembled in the interior of the guide tube 35.
And, at the upper end of this guide tube 35, this guide tube 3
A main nozzle cap 40 is screwed to the tip of the outlet tube 37, and a second non-return check is attached to the tip of the outlet tube 37. A threaded piece 38 is formed into which the valve body 7 constituting the valve is inserted and assembled.

The inner diameter of the threaded cylinder piece 38 is larger than the inner diameter of the lead-out cylinder 37, and a step is formed at the boundary between the threaded cylinder piece 38 and the lead-out cylinder 37, and this step serves as the valve seat surface 39.

The main nozzle cap 40 has a structure in which a top plate is connected to one end of a cylindrical body with a spiral groove cut into its inner peripheral surface, and a nozzle hole is formed in the center of the top plate.

The valve body 7 also includes a valve piece 8 whose peripheral end portion on one end surface is brought into close contact with the valve seat surface 39, and a resilient portion 11 whose elasticity acts to press the valve piece 8 against the valve seat surface 39. and a spinner groove piece 9 having a spinner groove carved in the front end surface pressed against the inner surface of the top plate of the main nozzle cap 40.

The lever 41 is rotatably fixed to the upper end of the mounting wall piece 32 by a shaft pin 33 at the rear end of a coupling plate 42 which is bent and extended from the lever 41 at a substantially right angle. A horizontally elongated hole is formed in the center portion of the coupling plate 42 to accommodate a coupling pin 43 protruding from the upper end of the outer surface of the guide tube 35.

Note that the vent hole 25 formed in the bottom plate 20 of the intake 17 is for preventing negative pressure from being generated in the bottle B, and the gasket 26 is for connecting the sprayer main body 14 and the bottle B. This is to achieve liquid tightness between the two.

Since the sprayer main body 14 has the above-described structure, when the lever 41 is rotated counterclockwise to lower the trigger 34 against the elasticity of the spring 28 from the state shown in FIG. Since the volume of the space formed by the cylinder tube 21, guide tube 35, and outlet tube 37 between the check valve and the second check valve is reduced, the content liquid located in this space is reduced. The water is sprayed from the nozzle hole through the spinner groove of the spinner groove piece 9 by deforming the elastic portion 11 and moving the valve piece 8 forward to open the second check valve.

On the contrary, when the lever 41 is rotated back clockwise due to the elasticity of the spring 28, the volume of the passage space formed between the first check valve and the second check valve is increases, so the valve ball 24, which is the first check valve, is pushed up and the liquid inside the bottle B is sucked up into the passage space, making it possible to perform the next spraying operation.

As mentioned above, the sprayer main body 14 having such a structure has a simple structure and has an excellent effect of being able to obtain a stable spray operation as a sprayer of this type. When in use, if the spray direction of the liquid content is required not only horizontally but also vertically, or if spraying is required deep into a narrow gap, this requirement cannot be met. , which was bound to cause dissatisfaction with the way it was used.

The present invention was devised to eliminate the dissatisfaction with the conventional example described above, and uses a nozzle extension body with a spray nozzle formed at the tip of a flexible elongated pipe body instead of the main nozzle cap. The nozzle extension body can be attached to the sprayer body.

An embodiment of the present invention will be described below with reference to the drawings.

The sprayer according to the present invention is provided with two check valves and a cylinder mechanism located between the two check valves in the middle of the liquid passage, and a screw thread at the tip of the outlet tube 37 that forms the liquid passage. A spinner groove piece 9 with a spinner groove carved in the front end surface of the valve body 7 disposed inside the cylinder piece 38 and constituting the second check valve.
The sprayer main body 14 has a structure in which the front end is integrally provided with
Then, a distal end screw portion 4 having the same structure and dimensions as the screw tube piece 38 is provided at the tip, a assembled base end portion 3 with a large diameter is provided at the base end, and a stepped portion 2a is provided in the middle. The extension tube 2 is screwed onto the base end side of the flexible extension tube 2 in the shape of an elongated pipe with a small diameter on the base end side by screwing into the threaded tube piece 38.
A coupling cap 6 is slidably fitted and assembled to the threaded cylindrical piece 38 in a liquid-tight manner, and a nozzle cap 12 having a crested cylindrical shape with a nozzle hole 13 formed in the top plate is attached to the tip of the threaded cylindrical piece 38 in a fluid-tight manner. A nozzle extension body 1 which is screwed and assembled to a part 4 and further includes a functional part for atomizing the content liquid at least in the tip threaded part 4.
and a mounting body 44, which is provided with an insertion shaft piece 46 that is inserted into and engaged with a pair of clamping pieces 45 that hold the coupling cap 6 at an appropriate distance within the sprayer main body 14.

Assembled base end portion 3 of extension tube 2 of nozzle hole extension body 1
has a diameter larger than that of the central portion of the extending tube 2 by providing a protrusion on the outer circumferential surface, and thereby the connecting cap 6, which is slidably assembled to the extending tube 2, can extend. This prevents the screw tube piece 3 from coming off from the tube 2.
A wider proximal end surface of the extending cylinder 2 is formed to be in liquid-tight contact with the distal end surface of the extending cylinder 8 .

Further, the tip screw portion 4 formed at the tip of the extending tube 2 has exactly the same structure and dimensions as the screw tube piece 38 of the sprayer main body 14.

The coupling cap 6 is composed of a fitting cylinder part 6a that is slidably assembled to the extending cylinder 2, and a threaded cylinder part 6b that is screwed into the threaded cylinder piece 38. By being screwed into the cylindrical piece 38, the assembled base end 3 is pressed against the distal end surface of the cylindrical piece 38, and the extending cylinder 2 is assembled to the cylindrical piece 38 in a liquid-tight state. be.

Furthermore, since the inner diameter of the fitting cylindrical portion 6a of this coupling cap 6 is smaller than the outer diameter of the distal end side bordering the stepped portion 2a of the extending tube 2, this coupling cap 6 is located at the front side of the stepped portion 2a. It cannot be moved by sliding.

By the way, the sprayer main body 1 is attached to the base end surface of the extending tube 2 assembled to the screw tube piece 38 by the coupling cap 6.
Needless to say, the front end surface of the spinner groove piece 9 of the valve body 7 of No. 4 is pressed by the elasticity of the elastic portion 11 of the valve body 7, and this pressing causes the front end surface of the spinner groove piece 9 of the valve body 14 of the sprayer body 14 to 7 does not lose its function as a check valve.

The valve body 7 inserted and assembled into the tip threaded portion 4 is
Since it has exactly the same structure and dimensions as the valve body 7 of the sprayer body 14, the assembly of the nozzle cap 12 and this valve body 7 is the same as the combination of the main nozzle cap 40 and the valve body 7 of the sprayer body 14. The nozzle cap 12 and the valve body 7 are exactly the same.
In combination with this, it is possible to achieve a good spraying operation without deteriorating the spraying condition of the content liquid.

Note that, unlike the valve body 7 of the sprayer main body 14, the valve body 7 assembled to the nozzle extension body 1 does not need to exhibit a check valve function, so the valve body 7 assembled to the nozzle extension body 1 does not need to exhibit a check valve function. A passage 5 may be formed between the tube 2 and the inner circumferential surface of the cylinder 2.

Furthermore, by forming a concave portion 10 in the center portion of the front end surface of the spinner groove piece 9 where the spinner grooves are concentrated, and by appropriately setting the depth and size of the concave portion 10, the spray state of the content liquid can be adjusted. In other words, the spread of the spray can be changed.

The attachment body 44 is for attaching the nozzle hole extension body 1 to the sprayer body 14, and is integrally molded from an elastic and relatively hard synthetic resin material, and is attached to a part of the cylinder wall over the entire length. The planar shape is C
A pair of gripping pieces 45 shaped like a letter, and this pair of gripping pieces 45
It consists of an insertion shaft piece 46 that extends laterally from the main body 14, enters into a suitable gap formed in the sprayer body 14, and is locked therein.

The attachment of the nozzle hole extension body 1 to the sprayer main body 14 by the attachment body 44 is such that, as shown in FIG. 6a is forcibly inserted and held, while the insertion shaft piece 46 is formed on the sprayer main body 14 in the non-operating state, the guide cylinder 35, the coupling plate 42, and The space formed between the mounting wall piece 32
This is achieved by inserting it tightly.

Further, in order to make the attachment of the attachment body 44 to the sprayer body 14 more solid, it is preferable to provide a locking strip 47 at a suitable location on the insertion shaft piece 46 as shown in the illustrated embodiment. .

Since the sprayer according to the present invention has the above-described configuration, the nozzle hole extension body 1 can always be integrally attached to the sprayer main body 14, thereby allowing the main body to be attached when needed. Nozzle cap 4
0 and the nozzle hole extension body 1, the use of the nozzle hole extension body 1 can be switched.
The liquid inside can be sprayed in any direction and deep into narrow spaces.

Further, since the nozzle hole extension body 1 is assembled to the sprayer main body 14 by the coupling cap 6 portion which is slidably fitted and assembled to the extension tube 2, the nozzle hole extension body 1 is assembled to the sprayer body 14 in this assembled state. It can be relatively freely displaced with respect to the sprayer main body 14, thereby preventing unnecessary deformation or damage due to some external force acting on the nozzle hole extension body 1 while it is assembled and held. In contrast, the displacement range of the nozzle hole extension body 1 attached to the sprayer body 14 by the attachment body 44 is exactly the same as the displacement range of the coupling cap 6 with respect to the extension tube 2. ,
Unnecessary displacement, for example, the extension cylinder 2 does not extend upward to a large extent, and there is no inconvenience caused in handling.

Furthermore, since the nozzle hole extension body 1 is normally attached to and held on the sprayer body 14 by the attachment body 44, there is almost no risk of losing the nozzle hole extension body 1, which is a separate object. be able to.

As is clear from the above description, in the sprayer according to the present invention, the nozzle hole extension body can be integrally and detachably attached to the sprayer body, so the nozzle hole extension body can be used freely when necessary. At the same time, it is possible to prevent the nozzle hole extension body from being lost, and it is also possible to attach the nozzle hole extension body to the sprayer body in a safe posture and state, so that the nozzle hole extension body can be prevented from being damaged. It exhibits many excellent effects, such as not causing any damage or making handling of the sprayer body inconvenient.

[Brief explanation of the drawing]

FIG. 1 is an external view showing how to assemble the sprayer according to the present invention. FIG. 2 is a front external view of the sprayer of the present invention in an assembled state. FIG. 3 is a longitudinal sectional view showing an example of the structure of the sprayer main body in which the nozzle hole extension body is assembled. Explanation of symbols, 1... Nozzle hole extension body, 2... Extension tube, 3... Assembled base end part, 4... Tip spiral part,
6...Connection cap, 7...Valve body, 8...Valve piece,
9...Spinner groove piece, 11...Elastic part, 12...
...Nozzle cap, 13... Nozzle hole, 14...
Sprayer main body, 44... Mounting body, 45... Pair of clamping pieces, 46... Insertion shaft piece, 47... Locking strip, B...
...Bottle body.

Claims (1)

[Scope of utility model registration request] In the middle of the liquid passage, two check valves and a cylinder mechanism located between the two check valves are provided, and the cylinder mechanism is disposed within a screw cylinder piece that is the tip of the lead-out cylinder that forms the liquid passage. The valve body constituting the second check valve includes a sprayer main body having a structure in which a spinner groove piece with a spinner groove carved on the front end surface is integrally provided at the front end, a tip having exactly the same structure as the screw cylinder piece, and It is flexible in the shape of an elongated pipe, with a screw-shaped distal end of the same dimensions, a large-diameter assembled base end at the base end, and a stepped part in the middle with a smaller diameter on the base end side. A coupling cap that assembles the extending tube to the threaded tube piece in a fluid-tight manner by screwing into the threaded tube piece is slidably fitted and assembled on the base end side of the extending tube. , a nozzle cap in the shape of a capped cylinder with a nozzle hole formed in the top plate is screwed and assembled to the threaded end portion, and further a functional portion for atomizing at least the content liquid is provided in the threaded end portion. and a mounting body provided with a pair of clamping pieces that clamp the coupling cap and an insertion shaft piece that is inserted into and engaged with the atomizer main body at a suitable distance.