JP2011173094A - Trigger type sprayer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a trigger type sprayer, in which a misty particle diameter can be changed by a simple operation, in addition, an object can be attained by an improvement in a small portion of a nozzle part at the end of the sprayer, and an increase in production costs is extremely little also. <P>SOLUTION: The trigger type sprayer includes a constitution that a liquid in a container is sprayed by the nozzle at the end by a trigger operation, and comprises the nozzle C having a first spout mouth 41 of a small diameter in which a spin mechanism 44 is arranged in a periphery of the rear surface, and a second spout mouth 45 of a large diameter in which a spin mechanism 44 is arranged in a periphery of the rear surface. The nozzle C is constituted so as to be rotatable to the body, and at the same time, a first flow passage running from the body inside into only the first spout mouth 41 and a second flow passage running from the body inside into only the second spout mouth 45 are constituted so as to be switchable by the rotation of the nozzle C. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a trigger sprayer, and more particularly to a trigger sprayer that can change the particle size of a sprayed mist by performing a simple operation.

  As a trigger type sprayer, one that sprays liquid from a nozzle at the tip by the action of a built-in pump mechanism by pulling a trigger provided so as to be swingable is known. (For example, see Patent Document 1)

  The trigger type sprayer has a pressure accumulating valve communicating with the inside of the pump in the nozzle, the pressure accumulating valve is opened when the pressure exceeds a certain level, and the liquid is ejected through a spin mechanism provided near the jet outlet downstream thereof. The liquid is sprayed in a mist form from the spout.

JP 2006-204989 A

  Some of these trigger type sprayers may be suitable with a large mist particle size depending on the application, and others may be suitable with a small particle size. Conventionally, the trigger type sprays mist with a particle size suitable for the application. Each atomizer was prepared.

  The present invention has been made in view of the above points, can change the particle size of the mist with a simple operation, and can achieve the object by improving only a small part of the nozzle portion at the tip of the sprayer. We propose a trigger-type sprayer that requires very little increase.

  The first means is configured as follows. In other words, the trigger type sprayer is configured to spray the liquid in the container from the nozzle at the tip by the trigger E operation, and includes a small-diameter first jet nozzle 41 having a spin mechanism 44 around the back surface and a spin mechanism around the back surface. A nozzle C provided with a large-diameter second jet nozzle 45 provided with a nozzle 44 is provided, the nozzle C is configured to be rotatable with respect to the main body A, and the first from the main body A to the first jet nozzle 41 only. One flow path and the second flow path extending from the inside of the main body A to only the second jet outlet 45 can be switched by the rotation of the nozzle C.

  The second means is configured as follows. That is, in the first means, in addition to the communication position of the first flow path with respect to the main body A of the nozzle C and the communication position of the second flow path, the inside of the main body A and each first jet port 41 and A stop position where the two outlets 45 are not in communication is provided.

  The third means was configured as follows. That is, in any one of the first means and the second means, a pressure accumulation valve that opens at a predetermined pressure or more is provided upstream of the first flow path and the second flow path.

  According to the present invention, when the first flow path is in communication, fine mist spraying is possible, and the mist particle size can be increased by switching to the second flow path. Since the switching can be performed by a simple operation of rotating the nozzle C, the handling is extremely convenient.

  In addition to the communication position of the first flow path with respect to the main body A of the nozzle C and the communication position of the second flow path, the stop position where the inside of the main body A and each of the first jet ports 41 and the second jet ports 45 are not in communication. Is provided, it is possible to reliably prevent inconvenience that the trigger E is accidentally sprayed due to erroneous pull-in.

  When a pressure accumulating valve that opens at a certain pressure or higher is provided upstream of the first flow path and the second flow path, the liquid can be introduced into the first flow path or the second flow path with a stable liquid pressure at all times. There is an advantage that a stable fog state can be always displayed.

It is a partially cutaway side view of a trigger type sprayer. Example 1 It is an expanded sectional view of a nozzle part. Example 1 It is an enlarged front view of a nozzle part. Example 1 It is a rear view of a 1st nozzle tip. Example 1 It is an expanded sectional view of the nozzle part of a flow-path switching state. Example 1 It is an expanded sectional view of the nozzle part at the time of channel non-communication. Example 1

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 shows an example of the trigger type sprayer of the present invention. The trigger type sprayer 1 has a nozzle C attached to the end of a main body A via an element B. In addition, the internal cylinder pump mechanism (figure shown) is attached to the container body by fitting the mounting cylinder D to the container body neck and neck (not shown), and pulling the trigger E suspended from the main body A so as to be swingable. (Not shown) is configured to be ejected from the nozzle C at the tip. As the built-in pump mechanism or the like, a mechanism used in the conventional trigger type sprayer can be adopted.

  In the present invention, as shown in an enlarged view in FIG. 2, the nozzle C is rotatably fitted to the tip of the injection cylinder 10 forming the flow path of the main body A via the element B, An accumulator valve body F is incorporated.

  The injection cylinder 10 has a small-diameter cylinder 12 protruding from the front surface of the tip wall 11 at the tip, and a large-diameter support cylinder 13 protruding from the outside. In the small-diameter cylinder 12, a projection 14 for locking the coil spring whose central portion protrudes in a bar shape protrudes, and a flow passage hole 15 penetrating the protruding portion 14 for locking the coil spring is formed from the tip wall 11. Has been established.

  The element B has a fitting cylinder portion 20 fitted to the outer periphery of the support cylinder 13 so as not to rotate, and an image wall 21 is stretched over the front end edge of the fitting cylinder portion 20, and the rear valve is located behind the center of the rear surface of the drawing wall 21. A seat tube 22 is extended, and a large-diameter cylinder 23 is extended rearward of the valve seat tube 22. A pressure accumulating valve seat 24 is provided on the inner surface of the valve seat tube 22, and a notch 25 is formed at a rear position of the pressure accumulating valve seat 24 including a locking protrusion protruding from the inner surface of the rear end portion. A central shaft 26 projects from the center of the drawing wall 21, and a cylindrical portion 27 projects from the center shaft 26. In addition, a communication hole 28 is formed in the base end portion of the central shaft 26 to communicate the inside of the main body A and the inside of the cylindrical portion 27 via a pressure accumulating valve. In addition, a communication groove 29 is recessed at a predetermined position on the outer periphery of the central shaft 26.

  In the nozzle C, a rotating cylinder 30 that is rotatably fitted to the outer periphery of the cylinder part 27 extends rearward from the rear surface of the front wall 31, and an outer peripheral wall 32 extends rearward from the periphery of the front wall 31. . In addition, the inner wall 31a of the rotating cylinder in the inner part of the rotating cylinder 30 is stretched thickly rearward so that it can be rotated from the center of the rear surface of the inner wall 31a of the rotating cylinder to the tip of the central shaft 26. A tightly fitted boss 54 is projected to close the central shaft 26 in a liquid-tight manner. Further, a connecting cylinder part 33 is provided so as to project from the rotating cylinder inner front wall 31a to the outer periphery of the central shaft 26 so as to be rotatable, and from the rotating cylinder inner front wall 31a outside the connecting cylinder part 33. Is provided with a seal cylinder portion 34 that is rotatably fitted to the inner periphery of the cylinder portion 27 of the element B. Further, a first annular groove 35 for fitting the first nozzle tip is formed at the lower center of the front surface of the inner wall 31a of the rotating cylinder, and a second annular groove 36 for fitting the second nozzle tip is formed at the upper center. Has been established. Each annular groove defines a first chip fitting protrusion 37 and a second chip fitting protrusion 38 at the center.

  A first nozzle tip 39 is fitted on the outer surface of the first tip fitting projection 37, and similarly, a second nozzle tip 40 is fitted on the outer surface of the second tip fitting projection 38. The first nozzle tip 39 has a first peripheral wall 43 extending from the periphery of the first outlet wall 42 in which the first outlet 41 is drilled, and is formed on the periphery of the first outlet 41 on the back surface of the first outlet wall 42. Engraves a spin mechanism 44. Similarly, in the second nozzle tip 40, the second peripheral wall 47 extends from the peripheral edge of the second jet outlet wall 46 in which the second jet outlet 45 is drilled, and the second jet outlet 45 peripheral edge of the second jet outlet wall 46 is back. A spin mechanism 44 is engraved on the part. Each of the spin mechanisms 44 has a known configuration in which a curved concave portion 48 is provided around the back surface of the first jet nozzle 41 as shown in the first nozzle tip 39 of FIG. When it passes and is ejected from the first ejection port 41, it is configured to be ejected in the form of a mist. The same applies to the second nozzle chip 40.

  Further, the first chip fitting protrusion 37 has an outer peripheral surface provided with a first groove 50 that communicates the spin mechanism 44 with the inside of the rear end of the first annular groove 35, and the second chip fitting protrusion. On the outer peripheral surface 38, a second groove 51 is provided to communicate the spin mechanism 44 with the inside of the rear end of the second annular groove 36. A first through hole 52 that communicates with the first concave groove 50 and a second through hole 53 that communicates with the second concave groove 51 are respectively provided in the rotating cylinder inner front wall 31a.

  The pressure accumulating valve body F includes an annular base 62 in which a large-diameter sliding portion 60 that slides on the inner periphery of the large-diameter cylinder 23 and a small-diameter sliding portion 61 that slides on the inner periphery of the small-diameter cylinder 12 are connected in the front-rear direction. In addition, a valve plate 63 that press-contacts the pressure accumulating valve seat 24 is provided, and the annular base 62 and the valve plate 63 are integrally connected by a plurality of connection plates 64 in the circumferential direction. The valve plate 63 is always in pressure contact with the accumulator valve seat 24 with a coil spring s interposed between the valve plate 63 and the projection 14 for engaging the coil spring.

  In this invention, the switching mechanism which can change the particle size of fog is provided. The first jet nozzle 41 and the second jet nozzle 45 have different diameters, and the first jet nozzle 41 has a small diameter and the second jet nozzle 45 has a large diameter. The mist ejected from the first jet port 41 having a small diameter has a small particle size, and the mist ejected from the second jet port 45 having a large diameter has a large particle size. The actual diameters or relative ratios of the first jet nozzle 41 and the second jet nozzle 45 may be appropriately selected according to the type of content liquid to be sprayed.

  In the predetermined position with respect to the main body A of the nozzle C, the switching mechanism includes a first flow path that communicates only from the main body A via the pressure accumulation valve to the first jet port 41, and rotation of the nozzle C from the main body A via the pressure accumulation valve. Thus, the second flow path communicating only with the second jet nozzle 45 can be switched.

  The first flow path includes a switching groove 49 that is recessed from the communication hole 28 of the element B at a predetermined position in the circumferential direction of the rear inner surface of the rotating cylinder 30, a communication groove 29 of the element B, a first communication hole 52, and a first chip fitting. The first concave groove 50 of the joint protrusion 37 and a flow path that reaches the first jet outlet 41 via the spin mechanism 44, and the second flow path extends from the communication hole 28 of the element B as shown in FIG. A switching groove 49 recessed at a predetermined position in the circumferential direction at the rear of the rotating cylinder 30, a communication groove 29 of the element B, a second through hole 53, a second concave groove 51 of the second chip fitting protrusion 38, a spin mechanism 44 It is a channel which reaches the 2nd jet nozzle 45 via. The communication groove 29 and the switching groove 49 are provided in accordance with the rotation angle of the nozzle B through which the first flow path and the second flow path communicate.

  The case where the trigger type sprayer 1 configured as described above is used will be described. When the trigger E is pulled from the state of FIG. 1, liquid is introduced into the small diameter cylinder 12 and the large diameter cylinder 43 from the tip of the injection cylinder 10 by the action of the internal pump mechanism. The pressure accumulating valve body F is pressed upstream by the pressure generated by the diameter difference from the portion 61, the pressure accumulating valve opens against the urging force of the coil spring s, and the pressurized liquid is introduced downstream thereof.

  At that time, as shown in FIG. 2, when the first flow path is in communication, the mist is sprayed from the first jet outlet 41 through the first flow path as described above. At this time, the mist has a relatively fine particle size.

  Next, after the nozzle is rotated from the state shown in FIG. 2 to the state shown in FIG. 5 so that the second flow path is in communication, the trigger E is pulled again and the liquid is ejected. It sprays from the 2nd jet nozzle 45 via 2 flow paths. The mist in this case has a relatively large particle size.

  In this example, a predetermined interval is provided between the communication groove 29 when the first flow path communicates and the communication groove 29 when the second flow path communicates with the main body A of the nozzle C. In addition to the communication position of the first flow path and the communication position of the second flow path, as shown in FIG. 6, a stop position where the inside of the main body A and each of the first and second jet outlets 41 and 45 are not in communication. Is provided. This stop position can be selected by a mark or the like provided on the outer surface of the nozzle.

1 ... Trigger type sprayer A ... Main body
10 ... Injection cylinder, 11 ... Tip wall, 12 ... Small diameter cylinder, 13 ... Support cylinder,
14 ... Projection for locking coil spring, 15 ... Channel hole B ... Element
20 ... Fitting cylinder, 21 ... Drawing wall, 22 ... Valve seat cylinder, 23 ... Large diameter cylinder, 24 ... Accumulator valve seat,
25 ... Notch, 26 ... Center axis, 27 ... Tube, 28 ... Communication hole, 29 ... Communication groove C ... Nozzle
30 ... rotating cylinder, 31 ... front wall, 31a ... rotating cylinder inner front wall, 32 ... outer peripheral wall, 33 ... connecting cylinder,
34 ... seal cylinder, 35 ... first annular groove, 36 ... second annular groove,
37... First tip fitting protrusion 38. Second tip fitting projection 39. First nozzle tip 40. Second nozzle tip 41. First jet outlet 42. First jet outlet wall 43 ... the first wall,
44 ... Spin mechanism, 45 ... Second outlet, 46 ... Second outlet wall, 47 ... Second peripheral wall,
48 ... radial recess, 49 ... switching groove, 50 ... first groove, 51 ... second groove, 52 ... first through hole,
53 ... Second through hole, 54 ... Boss D ... Mounting cylinder E ... Trigger F ... Accumulator valve body
60 ... large diameter sliding part, 61 ... small diameter sliding part, 62 ... annular base, 63 ... valve plate, 64 ... connecting plate s ... coil spring

Claims (3)

  The trigger type sprayer is configured to spray the liquid in the container from the nozzle at the tip by the trigger E operation. The first spray port 41 has a small diameter in which a spin mechanism 44 is disposed around the back surface, and the spin mechanism 44 is disposed around the back surface. A nozzle C having a large-diameter second jet 45 disposed therein is provided, and the nozzle C is configured to be rotatable with respect to the main body A, and the first flow from the main body A to only the first jet 41 is provided. A trigger type sprayer characterized in that the path and the second flow path extending from the inside of the main body A to only the second jet outlet 45 can be switched by the rotation of the nozzle C.   In addition to the communication position of the first flow path with respect to the main body A of the nozzle C and the communication position of the second flow path, the stop position where the inside of the main body A and each of the first jet ports 41 and the second jet ports 45 are not in communication. The trigger type sprayer according to claim 1, further comprising:   The trigger type sprayer as described in any one of Claim 1 or Claim 2 which provided the pressure accumulation valve which opens a valve above a fixed pressure upstream of a 1st flow path and a 2nd flow path.

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