JP4554342B2 - Accumulation type two-component sprayer - Google Patents

Description

  The present invention relates to a two-component sprayer, and more particularly to a pressure-accumulating two-component sprayer that sprays two solutions simultaneously at a constant rate when a predetermined pressure is reached and prevents dripping.

2. Description of the Related Art A syringe-like two-liquid simultaneous sprayer that includes two cylindrical bodies that separately store two different types of liquids and a piston that is fitted into each cylindrical body has been known (see, for example, Patent Document 1). ).
However, the conventional sprayer described in Patent Document 1 does not have a pressure accumulating function, but the container is made into two separate members like a syringe, and each is attached to a separate housing, Since the piston is pushed by another plunger restricting means, there is a problem that the shape is complicated and the number of parts is large.

Moreover, it is a syringe-like dispensing container having two cylindrical bodies for separately storing two different types of liquids, and a piston fitted into each cylindrical body, and the two cylindrical bodies are integrated. A component that is configured and simultaneously mixes and dispenses different liquids is also known (see, for example, Patent Document 2).
However, in the conventional example described in Patent Document 2, the container is small and the structure is simple, but only the two liquids are mixed and poured out, and this cannot be sprayed. It was.

Furthermore, various types of sprayers having a pressure accumulating function are well known, and as one of them, a pressure accumulating type sprayer provided with a liquid sucking-back chamber in order to prevent dripping at the end of spraying. Is conventionally known (see, for example, Patent Document 3).
However, the pressure-accumulating sprayer described in Patent Document 3 is provided with two pump chambers in a pump equipped with one sprayer and a suction return chamber in the nozzle head, similarly to the known pressure-accumulating sprayer. The structure is complicated, the number of parts is large, and the cost is high.
JP-T-2001-502199 JP 2003-341749 A Japanese Patent Laid-Open No. 10-34036

  An object of the present invention is to solve the above-described problems, by attaching a spray nozzle to the discharge part of two syringe-like cylindrical containers containing different kinds of liquids, and spraying when a predetermined pressure is reached during spraying. It is a pressure accumulation type so that two types of liquid can be sprayed simultaneously at a certain ratio and also prevent dripping, and a pressure accumulation type two liquid sprayer in which the entire apparatus is miniaturized is provided. Objective.

  In order to solve the above-mentioned problem, the present invention provides, as a pressure-accumulation type two-liquid sprayer, a container main body in which two cylindrical bodies are continuously provided, a piston body that is fitted into each cylindrical body, the piston body, and an operating rod. A piston member composed of a push plate provided continuously, a valve member composed of a valve body and a pressure receiving piston body, which are inserted in the front part of two cylindrical bodies and have discharge ports, and a top wall of the cylindrical body and a pressure receiving piston The structure characterized by comprising the spring member elastically mounted between the body and the nozzle member attached to the attachment part provided in the top wall of the container main body is employ | adopted.

  As an example of the nozzle member, the nozzle member is composed of two spray nozzles and a casing attached to the mounting portion, and the two partition walls and the partition plate of the casing lead to the two cylindrical discharge ports. A configuration is adopted in which liquid chambers are provided and communicated with the ejection holes of the respective spray nozzles through the flow paths from the respective liquid chambers.

  As another embodiment of the nozzle member, the nozzle member is composed of a casing attached to one spray nozzle and an attachment portion, and the mixing chamber communicating with the discharge ports of the two cylindrical bodies is provided by the casing and the attachment portion, A configuration characterized in that mixed spraying is performed from the spray hole of the spray nozzle through one channel.

  As an example of the container body, a configuration is adopted in which the diameter of the two cylindrical bodies is changed and the content liquid is sprayed at a constant rate.

In the present invention, the piston member is fitted and inserted into the two cylindrical bodies of the container body, and the valve member biased by the spring is fitted to the discharge portion side of the cylindrical body. When the pressure is reached, different liquids can be sprayed simultaneously from the two spray nozzles.
When spraying is stopped, the valve member is retracted by restoring the spring, and the discharge port is instantly closed, and the liquid chamber is made negative pressure, thereby providing a function as a suction return chamber. The effect can be further improved.

By changing the diameters of the two cylinders, the liquid contents can be mixed and sprayed at a constant rate.
In the case where two liquids are mixed and sprayed from one nozzle, a mixing chamber is provided in the nozzle so that the two liquids can be uniformly mixed and sprayed.

  Next, the pressure-accumulation type two-component sprayer of the present invention will be described with reference to the accompanying drawings.

  1 and 2, A is a container body in which two cylindrical containers are connected, B is a piston member, C is a valve member, and D is a nozzle member.

The container main body A is composed of two cylindrical containers having different diameters, a large-diameter cylindrical body A1 and a small-diameter cylindrical body A2, and the cylindrical bodies A1 and A2 are respectively cylindrical walls 1a and 1b forming cylinders. And the top walls 2a and 2b, and the two cylindrical walls 1a and 1b are connected to each other by a connecting portion 3 with a part thereof being a common portion.
Note that the cylindrical body A1 and the cylindrical body A2 may have the same diameter.

Piston members B1 and B2 are slidably inserted into the respective cylindrical bodies A1 and A2.
As shown in FIG. 3, in order to mount the nozzle member D on the top surfaces of the top walls 2a and 2b, a mounting portion 4 is erected across the top walls 2a and 2b.
The mounting portion 4 includes an outer peripheral wall 5 provided with an engaging groove in the lower stage and partition walls 6a and 6b separating the inside, and forms a liquid chamber together with the attached nozzle member D.

  The top walls 2a and 2b of the cylindrical bodies A1 and A2 are provided with valve holes 7a and 7b into which a valve body of a valve member C described later is slidably inserted, and a flow hole 8a for circulating air. 8b are perforated.

  At the middle part of the container main body A, there are provided gripping parts 9 for connecting the tubular walls 1a, 1b and for hooking the fingers, and at the lower ends of the tubular walls 1a, 1b, a ring bulging around the outer periphery excluding the connecting part 3 Is provided.

  As shown in FIGS. 1 and 2, the piston member B is composed of two piston members B1 and B2 corresponding to the cylindrical bodies A1 and A2, and each member is a piston body 10a that slides in the cylindrical walls 1a and 1b. 10b and operating rods 11a and 11b.

  Each of the piston bodies 10a and 10b includes convex top wall portions 12a and 12b having a shape corresponding to a pressure receiving piston body of a valve member C described later, skirt-like sliding surface portions 13a and 13b, and bottom wall portions 14a and 14b. The bottom wall portions 14a and 14b are provided with support portions 15a and 15b for supporting the operating rods 11a and 11b.

  The operating rods 11a and 11b are formed in a cross-shaped cross section by the first connecting rods 16a and 16b orthogonal to the connecting portion 3 and the second connecting rods 17a and 17b orthogonal to the connecting rods 16a and 16b. Yes.

Push plates 18a and 18b for pressing the piston are connected to the rear ends of the operating rods 11a and 11b.
At the center ends of the push plates 18a and 18b, overlapping portions 19a and 19b are provided, and the push plates 18a and 18b are moved together.
Further, the push plates 18a and 18b, the first linkages 16a and 16b, and the second linkages 17a and 17b may be integrally formed.

As shown in FIGS. 1 and 3, the valve members C1 and C2 are composed of valve bodies 20a and 20b and pressure receiving piston bodies 21a and 21b, and are slidably fitted into the cylindrical bodies A1 and A2. .
The pressure receiving piston bodies 21a and 21b are formed at the rear end portions and have concave pressure receiving surfaces 22a and 22b having shapes corresponding to the convex top wall portions 12a and 12b of the piston bodies 10a and 10b, and a skirt-like shape formed on the outer peripheral surface. Sliding surface portions 23a and 23b and spring receiving surfaces 24a and 24b formed on the opposite surfaces of the concave pressure receiving surfaces 22a and 22b are provided.

The valve bodies 20a and 20b are slidably fitted into the valve holes 7a and 7b of the cylindrical bodies A1 and A2, and have valve outer peripheral surfaces 25a and 25b slidably in contact with the valve holes 7a and 7b. The discharge ports 26a and 26b, and the communication holes 27a and 27b that connect the discharge ports 26a and 26b to the inside of the cylindrical bodies A1 and A2 are provided.
The heads of the valve bodies 20a and 20b are provided with protrusions or protrusions that engage with the upper ends of the valve holes 7a and 7b.

Between the top walls 2a and 2b of the container body A and the spring receiving surfaces 24a and 24b of the valve member C, resin-made compression springs 28a and 28b are elastically mounted.
The material is such that when the cylinders A1 and A2 reach a predetermined pressure by the pressing force of the piston member B, the valve member C moves and the discharge ports 26a and 26b are opened, and the liquid contents are discharged and pressed. When the pressure is released, the resin member is selected from synthetic resin having a resilience necessary to immediately return the valve member C to the original position, and the shape does not take up space when compressed. A leaf spring having a substantially U-shaped cross section is used.

The nozzle member D includes a casing 30 and two spray nozzles 31a and 31b.
The casing 30 includes an outer peripheral wall 32 and a top wall 33.
The outer peripheral wall 32 is provided with a bulging portion projecting inwardly at the lower end thereof, and is liquid-tight by the engagement groove of the outer peripheral wall 5 of the mounting portion 4 erected on the top walls 2a and 2b of the container body A. It is inserted.

  Partition plates 34 a and 34 b that engage with the partition walls 6 a and 6 b of the mounting portion 4 are suspended from the lower surface of the top wall 33, and liquid chambers 35 a and 35 b are formed between the mounting portion 4 and the casing 30. .

Spray nozzles 31a and 31b are erected on the top surface of the top wall 33, and nozzle tips 37a and 37b each having a spray hole 36a and 36b drilled in the center are mounted on the spray nozzles 31a and 31b.
The nozzle tips 37a and 37b are provided with spin grooves, and flow paths 38a and 38b communicating with the spin grooves and the liquid chambers 35a and 35b are formed.

Next, the state of use and effects of the pressure-accumulation type two-component sprayer of the present invention will be described.
The pressure-accumulation type two-component sprayer of the present invention is used as a sprayer for chemicals, cosmetics, and other liquid contents.

First, the assembly of the pressure accumulation type two-component sprayer will be described. In the state before use, as shown in FIG. 3, the valve members C1 and C2 are retracted by the elastic force of the compression springs 28a and 28b. The discharge ports 26a and 26b are closed.
In this state, after the different liquids are stored in the cylindrical bodies A1 and A2, the piston bodies 10a and 10b of the piston members B1 and B2 are inserted to complete the filling of the content liquid.

In spraying, when the nozzle member D is directed in a desired spraying direction and the gripping portion 9 and the pressing plates 18a and 18b are gripped by fingers and the pressing plates 18a and 18b are pressed, the cylindrical body A1 is pressed by the piston bodies 10a and 10b. , The pressure in A2 increases.
When the internal pressure reaches a predetermined pressure, the pressure receiving pistons 21a and 21b of the valve members C1 and C2 compress the compression springs 28a and 28b against the elastic force, and the valve members C1 and C2 move forward.
At that time, the air in the cylindrical bodies A1 and A2 passes through the flow holes 8a and 8b and escapes, so that the forward movement of the pressure receiving piston bodies 21a and 21b is not hindered.

With this advance, the valve bodies 20a, 20b slide forward through the valve holes 7a, 7b of the container body A, and when they reach a certain position, the discharge ports 26a, 26b are opened as shown in FIG. Is done.
The liquid discharged from the discharge ports 26a and 26b flows into the liquid chambers 35a and 35b, respectively.
The liquid flowing into the liquid chambers 35a and 35b is sprayed from the ejection holes 36a and 36b through the flow paths 38a and 38b, respectively.

To stop spraying, when the pressing force applied to the push plates 18a and 18b is released, the valve members C1 and C2 are retracted to their original positions by restoring the compression springs 28a and 28b.
As the valve members C1 and C2 are retracted, the discharge ports 26a and 26b are automatically and instantaneously closed to stop spraying, and the interiors of the liquid chambers 35a and 35b are in a reduced pressure state due to the retreat of the valve bodies 20a and 20b. Therefore, a suction force that draws back the liquid that was about to be ejected into the liquid chambers 35a and 35b is generated.
That is, the liquid chambers 35a and 35b also function as suction chambers, and the present invention further increases the effect of preventing liquid dripping.

It is also described in JP-A-10-34036 that the provision of the suction chamber is effective in preventing dripping.
However, in the prior art, the suction chamber having a complicated shape must be provided as a separate part, and the entire apparatus has to be large.
On the other hand, in the present invention, since the liquid chambers 35a and 35b also function as a suction chamber, the entire structure of the sprayer is simplified and the size can be reduced.

Next, a second embodiment of the nozzle member will be described.
In this embodiment, the configuration of the nozzle member D is changed, and two liquids are mixed and sprayed from one spray nozzle.
The internal structure of the container main body A and the configuration of the piston member B are the same, and the following description will focus on the configuration of the nozzle member and its mounting portion, which are different points.

5 and 6, A is a container body, B is a piston member, Da is a nozzle member, and a mounting portion 40 of the nozzle member Da is erected on the top walls 2 a and 2 b of the container body A.
The mounting portion 40 includes a track elliptical outer peripheral wall 41 having an engaging groove at the lower end of the outer periphery, an upper wall 42 positioned lower than the outer peripheral wall 41, a spout portion 43, and a support portion 44.

The nozzle member Da includes a casing 45 and one spray nozzle 46 erected on the upper surface of the casing 45.
The casing 45 is fitted to the outer periphery of the outer peripheral wall 41 of the attachment portion, and includes an outer peripheral wall 47 and a top wall 48 provided with a bulging portion at the lower end. The mixing chamber 49 is formed by the top wall 48 and the attachment portion 40. Is formed.

The spray nozzle 46 includes a nozzle body 52 provided with a cylindrical portion 50 in the center and an arc-shaped flow path 51 communicating with the mixing chamber 49.
A tip portion of the nozzle body 52 is a circular annular hole 53, and a nozzle tip 55 having an ejection hole 54 drilled in the center is fitted.

  When spraying, as in the first embodiment, when the predetermined internal pressure is reached, the valve members C1 and C2 move forward, and the liquid discharged from the discharge ports 26a and 26b flows into the mixing chamber 49 and mixes. Furthermore, it is mixed in the arc-shaped channel 51 and sprayed from the ejection hole 54.

  When the spraying is stopped, as in the first embodiment, the valve bodies 20a and 20b are retracted, whereby the inside of the mixing chamber 49 is decompressed, and an effect of preventing liquid dripping from the ejection hole 54 can be obtained.

  In the above embodiment, two cylindrical bodies are connected as the container body. However, even if only one cylindrical body is used, liquid dripping can be prevented. Therefore, a small sprayer using one cylindrical body and a piston is used. May be.

  Further, a resin spring having a specific shape is used as the spring member, and there is an effect that there is no need for separation in disposal, but the spring has a metal coil spring or a required elastic force. An elastic body may be sufficient and it is not limited to an Example.

  The pressure-accumulation type two-component sprayer of the present invention can spray different contents stored in a container body in which two cylindrical bodies are continuously provided at a constant rate while maintaining a predetermined pressure. It can be widely used as a two-component simultaneous sprayer for content liquids or a mixed sprayer.

It is a section elevation view of a sprayer of the 1st example of the present invention. It is a perspective view of a sprayer. It is an enlarged explanatory view of a valve member and a nozzle member, (a) is a sectional elevation view of a principal part, (b) is a top view of a nozzle member attachment part, and (c) is a top view at the time of attachment of a nozzle member. It is a section elevation of a valve member and a nozzle member at the time of spraying. It is explanatory drawing of 2nd Example sprayer, (a) is a cross-section elevation, (b) is a top view. It is an expansion explanatory view of a valve member and a nozzle member, (a) is a section elevation view of an important section, and (b) is a top view of a nozzle member attachment part.

Explanation of symbols

A Container body
A1, A2 Cylindrical body B, B1, B2 Piston member
C, C1, C2 Valve member D, Da Nozzle member 1a, b Tube wall 2a, b Top wall 3 Connection portion 4 Mounting portion 5 Outer peripheral wall 6a, b Partition wall 7a, b Valve hole 8a, b Flow hole 9 Holding portion 10a, b Piston body 11a, b Actuating rod 12a, b Convex top wall portion 13a, b Sliding surface portion
14a, b Bottom wall portion 15a, b, 44 Support portion 16a, b First linkage 17a, b Second linkage 18a, b Push plate 19a, b Overlapping portion 20a, b Valve body 21a, b Pressure receiving piston body 22a, b Recessed pressure receiving surface 23a, b Sliding surface 24a, b Spring receiving surface 25a, b Valve outer peripheral surface 26a, b Discharge port 27a, b Communication hole 28a, b Compression spring 30, 45 Casing 31a, b, 46 Spray nozzle 32, 41 Outer peripheral wall 33, 48 Top wall 34a, b Partition plate 35a, b Liquid chamber 36a, b, 54 Ejection hole 37a, b, 55 Nozzle tip 38a, b, 51 Flow path 40 Mounting portion 42 Upper wall 43 Outlet Part 47 outer peripheral wall 49 mixing chamber 50 cylindrical part 52 nozzle body 53 annular hole

Claims (4)

A container body in which two cylindrical bodies are connected;
A piston member composed of a piston body fitted into each cylindrical body and a push plate continuously provided by the piston body and the operating rod;
A valve member that is inserted into the front part of the two cylindrical bodies and comprises a valve body having a discharge port and a pressure-receiving piston body;
A spring member elastically mounted between the top wall of the cylindrical body and the pressure receiving piston body;
A pressure-accumulating two-component sprayer comprising: a nozzle member attached to a mounting portion provided on the top wall of the container body. The nozzle member consists of two spray nozzles and a casing attached to the mounting part,
Two liquid chambers leading to the discharge ports of the two cylindrical bodies are provided by the partition wall of the mounting portion and the partition plate of the casing,
The pressure-accumulation type two-component sprayer according to claim 1, wherein each pressure chamber communicates with a spray hole of each spray nozzle through a flow path. The nozzle member is composed of one spray nozzle and a casing attached to the mounting portion.
The casing and the mounting portion provide a mixing chamber that leads to the discharge ports of the two cylindrical bodies,
2. The pressure-accumulation type two-component sprayer according to claim 1, wherein the mixed spray is performed from the spray hole of the spray nozzle through one channel.   4. The pressure-accumulating two-component sprayer according to claim 1, wherein the two liquid cylinders are changed in diameter to spray the content liquid at a constant rate.

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