Trigger-type liquid dispenser

Abstract

To increase an injection amount of a content of a trigger type liquid sprayer by one operation of a trigger part, and to enable injection which is hard to be interrupted.SOLUTION: A trigger type liquid sprayer 1 includes a vertical supply cylinder part 10, and a trigger mechanism 20 having a trigger part 21 arranged to be movable backward in a forward energization state. The trigger mechanism 20 incudes a first pump portion 30A for circulating a content to an injection hole 3a due to backward movement of the trigger part 21, and a second pump portion 30B arranged above the first pump portion 30A, and circulating a content to the injection hole 3a due to forward movement of the trigger part 21. The trigger part 21 has a rotary shaft 22 in the vertical direction between a connection part (first connection shaft 23A) with the first pump portion 30A, and a connection part (second connection shaft 23B) with the second pump portion 30B.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a trigger-type liquid ejector.

Background Art

[0002] Conventionally, a trigger-type liquid ejector described in Patent Document 1 below has been known. This trigger-type liquid ejector includes an ejector body attached to a container body in which a liquid is stored, and a nozzle member disposed on the front side of the ejector body and having an ejection hole formed therein for ejecting the liquid forward. The ejector body includes a vertical supply cylinder portion that extends in the vertical direction and sucks up the liquid in the container body, an injection cylinder portion that extends forward from the vertical supply cylinder portion and whose inside communicates with the inside of the vertical supply cylinder portion, a trigger portion that extends downward from the injection cylinder portion and is disposed so as to be swingable backward in a forward-biased state, and a supply means that is disposed below the injection cylinder portion and causes the liquid to flow from the inside of the vertical supply cylinder portion through the inside of the injection cylinder portion toward the ejection hole side by the backward swing of the trigger portion.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, in the conventional trigger-type liquid ejector, there is a demand for ejecting (coating, adhering) the content over a wide range and extending the ejection time of the content. For this reason, it is required to increase the ejection amount of the content by one operation of the trigger portion and to enable continuous ejection.

[0005] The present invention has been made in view of such circumstances, and an object thereof is to increase the ejection amount of the content of the trigger-type liquid ejector by one operation of the trigger portion and to enable continuous ejection. [Means for solving the problem]

[0006] (1) The trigger-type liquid dispenser according to the present invention comprises a dispenser body attached to a container body containing contents, and a nozzle member attached to the dispenser body and having a discharge hole formed therein for discharging the contents, wherein the dispenser body has a vertical supply cylinder portion that draws up the contents from the container body, and a trigger portion disposed to be movable backward in a forward biased state, and a trigger mechanism that causes the contents to flow from the vertical supply cylinder portion toward the discharge hole as the trigger portion moves, wherein the trigger mechanism, as the trigger portion moves forward, through the vertical supply cylinder portion The apparatus comprises a first pump unit that sucks up the contents from the container body and, by moving the trigger unit backward, causes the contents to flow toward the ejection hole, and a second pump unit positioned above the first pump unit, which, by moving the trigger unit backward, sucks up the contents from the container body via the vertical supply cylinder and, by moving the trigger unit forward, causes the contents to flow toward the ejection hole, wherein the trigger unit has a pivot shaft between the connecting portion with the first pump unit and the connecting portion with the second pump unit in the vertical direction.

[0007] According to the trigger-type liquid dispenser of the present invention, when a finger is placed on the trigger and the trigger is moved backward, the first pump unit, which is connected to a position below the pivot axis of the trigger, causes the contents to flow toward the discharge hole, so that the contents can be dispensed when the trigger is operated. Furthermore, when the trigger is moved forward by the biasing force, the second pump unit, which is connected to a position above the pivot axis of the trigger, then circulates the contents toward the ejection port, so that the contents can be ejected even when the trigger returns to its original position. In other words, the trigger unit has a pivot shaft between the connection point with the first pump unit and the connection point with the second pump unit in the vertical direction. Therefore, the first pump unit and the second pump unit can be operated in opposite directions, like a seesaw with the pivot shaft as the fulcrum. Therefore, with the trigger-type liquid dispenser according to the present invention, the contents can be dispensed not only when the trigger is operated, but also when the trigger returns to its original position. This makes it possible to increase the amount of contents dispensed with a single operation of the trigger and to enable continuous dispensing.

[0008] (2) The first pump unit may communicate with a discharge channel that communicates with the discharge hole via a first supply channel, and the second pump unit may communicate with the discharge channel via a second supply channel independent of the first supply channel.

[0009] In this case, it is possible to prevent the contents that should be flowed from the first pump section (second pump section) towards the discharge port from flowing back towards the second pump (first pump section).

[0010] (3) Each of the first pump section and the second pump section comprises a piston that moves back and forth in conjunction with the back and forth movement of the trigger section, a cylinder into which the piston is inserted, and a valve body that switches communication between the container body and the cylinder via the vertical supply cylinder section, wherein the vertical supply cylinder section has a first hole that allows the contents to flow out from the cylinder to the vertical supply cylinder section when the piston moves backward, and a second hole that allows the contents to flow from the container body to the cylinder via the vertical supply cylinder section when the piston moves forward, and is opened and closed by the valve body, wherein the valve body is provided to be movable back and forth and may move backward in conjunction with the piston moving backward to close the second hole.

[0011] In this case, the valve body is provided to be movable back and forth and moves backward in conjunction with the backward-moving piston, closing the second hole. Therefore, even if the valve body becomes difficult to move back and forth, for example, after being left unused for a while, the valve body is forcibly moved backward in conjunction with the backward movement of the piston, ensuring that the valve body is activated and blocking communication between the container body and the cylinder through the vertical supply cylinder. Subsequently, as the piston returns to its original position forward, the valve body is moved forward, opening the second hole, and the contents of the container body flow into the cylinder through the second hole. [Effects of the Invention]

[0012] According to the trigger-type liquid dispenser of the present invention, it is possible to increase the amount of liquid dispensed by a single operation of the trigger and to enable continuous dispensing. [Brief explanation of the drawing]

[0013] [Figure 1] This is a longitudinal cross-sectional view of a trigger-type liquid dispenser according to one embodiment of the present invention. [Figure 2] This is a cross-sectional view taken along the line II-II shown in Figure 2. [Modes for carrying out the invention]

[0014] An embodiment of a trigger-type liquid dispenser will be described below with reference to the drawings.

[0015] As shown in Figure 1, the trigger-type liquid dispenser 1 of this embodiment comprises a dispenser body 2 attached to a container body 100 containing the contents, and a nozzle member 3 attached to the dispenser body 2. Unless otherwise specified, each component of the trigger-type liquid dispenser 1 is a molded product made of synthetic resin.

[0016] The dispenser body 2 comprises a vertical supply cylinder section 10 and a trigger mechanism 20. Hereinafter, the direction along the central axis O of the vertical supply cylinder portion 10 is referred to as the vertical direction, and along the vertical direction, the bottom side of the container body 100 is referred to as the lower side, and the opposite side is referred to as the upper side. When viewed from the vertical direction, the side where the nozzle member 3 is located with respect to the vertical supply cylinder portion 10 is referred to as the front side, and the opposite side is referred to as the rear side. When viewed from the vertical direction, the direction orthogonal to the front-rear direction is referred to as the left-right direction.

[0017] The ejector body 2 is covered by a cover member 4 on its upper, rear, and left and right sides except for its front end portion. The nozzle member 3 is attached to the front end portion of the ejector body 2 and has an ejection hole 3a for ejecting the content forward.

[0018] The vertical supply cylinder portion 10 is formed in a cylindrical shape extending in the vertical direction and sucks up the content of the container body 100 from the mouth portion 101 of the container body 100. A pipe member 5 extending to the bottom of the container body 100 is fitted to the lower end portion of the vertical supply cylinder portion 10. An attachment cylinder portion 11 is continuously provided on the outer peripheral surface of the lower end portion of the vertical supply cylinder portion 10. The attachment cylinder portion 11 is arranged so as to surround the lower end portion of the vertical supply cylinder portion 10 and is inserted inside the mouth portion 101.

[0019] On the outer peripheral surface of the attachment cylinder portion 11, a flange 11a extending up to the upper end opening edge of the mouth portion 101 is formed. A seal member 12 is arranged on the upper end opening edge of the mouth portion 101. A capped cylindrical mounting cap 13 having an opening formed at the center is mounted on the outer peripheral surface of the mouth portion 101.

[0020] On the inner peripheral surface of the mounting cap 13, an internal thread that screws onto an external thread formed on the outer peripheral surface of the mouth portion 101 is formed. The flange 11a and the seal member 12 are sandwiched and fixed between the top wall of the mounting cap 13 and the upper end opening edge of the mouth portion 101.

[0021] On the front wall of the vertical supply cylinder portion 10, a first communication hole 10A (second hole) and a second communication hole 10B (second hole) are formed at intervals in the vertical direction. The first communication hole 10A communicates with a first pump mounting cylinder 14A extending forward from the front wall of the vertical supply cylinder portion 10. On the other hand, the second communication hole 10B communicates with a second pump mounting cylinder 14B extending forward from the front wall of the vertical supply cylinder portion 10. The second communication hole 10B is disposed above the first communication hole 10A.

[0022] An injection cylinder portion 15 extending forward is provided at the upper end portion of the vertical supply cylinder portion 10. The injection cylinder portion 15 forms an ejection flow path 15a for allowing the contents in the vertical supply cylinder portion 10 to flow toward the ejection hole 3a side. A relay cylinder member 17 is assembled to the injection cylinder portion 15 from the front. A nozzle member 3 is mounted on the front end portion of the relay cylinder member 17. The ejection flow path 15a communicates with the ejection hole 3a.

[0023] A part of the upper surface of the upper end portion of the vertical supply cylinder portion 10 is open, and a valve member 50 described later is fitted into the opening. The upper end portion of the vertical supply cylinder portion 10 is covered by a closing member 16 on the upper surface including the opening, the left and right side surfaces, and the rear surface. The closing member 16 is assembled to the upper end portion of the vertical supply cylinder portion 10 from the rear.

[0024] The trigger mechanism 20 includes a trigger portion 21, a first pump portion 30A, and a second pump portion 30B. The trigger portion 21 is disposed so as to be movable rearward in a forward-biased state. The first pump portion 30A and the second pump portion 30B cause the contents to flow from the vertical supply cylinder portion 10 toward the ejection hole 3a as the trigger portion 21 moves.

[0025] The trigger portion 21 includes a rotation shaft 22 and is pivotally supported by a pair of support members 17a vertically provided downward from the relay cylinder member 17. Thereby, the trigger portion 21 is rotatable about an axis extending in the left - right direction with respect to the pair of support members 17a. The trigger portion 21 has a front plate portion 21a, a pair of side plate portion 21b, and a top plate portion 21c.

[0026] The front panel 21a extends gradually downward from the front edge of the top panel 21c as it moves forward. The lower part of the front panel 21a is a finger rest for gripping the fingertips. The pair of side panels 21b extend backward from the left and right side edges of the front panel 21a and face each other in the left-right direction. The top panel 21c connects the upper edges of the front panel 21a and the pair of side panels 21b.

[0027] A pair of side plates 21b are provided with a first connecting shaft 23A and a second connecting shaft 23B. The first connecting shaft 23A and the second connecting shaft 23B are mounted horizontally by the pair of side plates 21b. The first connecting shaft 23A is positioned below the pivot shaft 22. This first connecting shaft 23A is connected to the piston 32 of the first pump section 30A. On the other hand, the second connecting shaft 23B is positioned above the pivot shaft 22. This second connecting shaft 23B is connected to the piston 32 of the second pump section 30B.

[0028] Spring receiving portions 24 are formed on the left and right outward-facing surfaces of the pair of side plate portions 21b. The left and right spring receiving portions 24 abut from the front against the lower ends of a pair of biasing members 18 that extend gradually downward as they move forward from the closing member 16. The biasing members 18 are formed integrally with the closing member 16.

[0029] The first pump section 30A includes a cylinder 31 that communicates with the vertical supply cylinder section 10 and extends in the front-rear direction, a piston 32 that moves back and forth inside the cylinder 31 in accordance with the movement of the trigger section 21, and a valve body 33 that allows communication between the vertical supply cylinder section 10 and the cylinder 31 when the piston 32 moves forward, and blocks communication between the vertical supply cylinder section 10 and the cylinder 31 when the piston 32 moves backward.

[0030] The cylinder 31 is formed as a bottomed cylindrical shape that opens forward and is fitted inside the first pump mounting cylinder 14A. The bottom of the cylinder 31 is open and the inside of the cylinder 31 communicates with the first communication hole 10A. A guide cylinder 31a is provided inside the cylinder 31. The guide cylinder 31a extends cylindrically forward from the bottom of the cylinder 31.

[0031] The piston 32 is positioned inside the cylinder 31 and is capable of protruding from the front end opening of the cylinder 31. The piston 32 is formed in a closed-end cylindrical shape with the front closed and the rear open. A sliding portion 32a is formed on the outer circumferential surface of the piston 32, which is capable of sliding back and forth against the inner wall surface of the cylinder 31.

[0032] Inside the piston 32, a rod-shaped sliding body 32b is formed, extending rearward from a front end wall that closes the front. The sliding body 32b is inserted inside the valve body 33, which will be described later. In addition, an insertion hole 32c is formed in the front end wall of the piston 32 into which the first connecting shaft 23A is inserted in the left-right direction. As a result, the piston 32 moves back and forth in conjunction with the rotation of the trigger unit 21.

[0033] The valve body 33 is positioned inside the guide cylinder 31a within the cylinder 31 and is movable back and forth guided by the guide cylinder 31a. The valve body 33 is formed in a bottomed cylindrical shape with an open front and a closed rear. The bottom wall of the valve body 33 faces the first communication hole 10A in the front-rear direction.

[0034] A contact portion 33a is provided on the outer circumferential surface of the bottom wall side of the valve body 33, which can contact the rear end opening edge of the guide cylinder 31a from behind. A sliding body 32b is inserted into the front end opening of the valve body 33 from the front. When the piston 32 moves backward, the valve body 33 moves backward together with the sliding body 32b due to the frictional force with the sliding body 32b, closing the first communication hole 10A.

[0035] Furthermore, when the piston 32 moves forward, the valve body 33 moves forward together with the sliding body 32b due to the frictional force with the sliding body 32b, opening the first communication hole 10A. When the contact portion 33a comes into contact with the rear end opening edge of the guide cylinder 31a, the forward movement of the valve body 33 is restricted, the sliding body 32b slides inside the valve body 33, and the piston 32 returns to its original position.

[0036] With this first pump unit 30A, when the piston 32 moves backward by the trigger unit 21, the valve body 33 blocks communication between the vertical supply cylinder 10 and the cylinder 31, thereby pressurizing the inside of the cylinder 31 and allowing the contents to be ejected to the outside of the cylinder 31. Conversely, when the piston 32 moves forward by the trigger unit 21, the pressure inside the cylinder 31 is reduced, and the valve body 33 allows communication between the vertical supply cylinder 10 and the cylinder 31, allowing the contents to be drawn from the container body 100 into the cylinder 31.

[0037] The second pump section 30B is fitted into the second pump mounting cylinder 14B and is positioned above the first pump section 30A. Similar to the first pump section 30A, the second pump section 30B includes a cylinder 31, a piston 32, and a valve body 33. The descriptions of the cylinder 31, piston 32, and valve body 33 are omitted here as they overlap with the descriptions of the first pump section 30A.

[0038] As shown in the cross-sectional view of Figure 2, the cylinder 31 of the first pump section 30A is connected to the discharge section 15a via the first supply passage 10a, and the cylinder 31 of the second pump section 30B is connected to the discharge section 15a via the second supply passage 10b, which is independent of the first supply passage 10a.

[0039] The interior of the vertical supply cylinder section 10 is divided by a partition wall 19 into a space where the first communication hole 10A and the second communication hole 10B are formed, and a space where the ejection channel 15a is formed. The front wall of the vertical supply cylinder section 10 has a third communication hole 10C (first hole) and a fourth communication hole 10D (first hole) that communicate with the space where the ejection channel 15a is formed.

[0040] The third communication hole 10C communicates with the cylinder 31 of the first pump section 30A. The fourth communication hole 10D communicates with the cylinder 31 of the second pump section 30B. The first supply passage 10a extends vertically from the third communication hole 10C toward the space where the ejection passage 15a is formed. The second supply passage 10b also extends vertically from the fourth communication hole 10D toward the space where the ejection passage 15a is formed.

[0041] The upper ends of the first supply passage 10a and the second supply passage 10b are closable by a valve member 50. The valve member 50 comprises a base 51, a first check valve section 52A, a second check valve section 52B, and an elastic deformation section 53. The base 51 is fitted into an opening formed on the upper surface of the upper end of the vertical supply cylinder section 10. The first check valve section 52A and the second check valve section 52B are suspended from the lower surface of the base 51 via an elastic deformation section 53 (see Figure 1), which is circular in side view.

[0042] As shown in Figure 2, the first check valve section 52A releasably closes the upper end of the first supply passage 10a. When the first supply passage 10a is pressurized, the first check valve section 52A opens the upper end of the first supply passage 10a, allowing it to communicate with the discharge passage 15a. The second check valve section 52B releasably closes the upper end of the second supply passage 10b. When the second supply passage 10b is pressurized, the second check valve section 52B opens the upper end of the second supply passage 10b, allowing it to communicate with the discharge passage 15a.

[0043] Next, the operation of the trigger-type liquid dispenser 1, configured as described above, will be explained. It should be assumed that the inside of the sprayer body 2 is filled with contents.

[0044] When the trigger section 21 is pulled backward against the biasing force, the piston 32 in the first pump section 30A moves backward. When the piston 32 moves backward, the valve body 33 blocks communication between the vertical supply cylinder section 10 and the cylinder 31, thereby pressurizing the inside of the cylinder 31. When the internal pressure of the cylinder 31 increases, the first check valve section 52A opens at a predetermined timing, and the contents of the cylinder 31 flow from the third communication hole 10C through the first supply passage 10a to the ejection passage 15a, and are ejected to the outside through the ejection hole 3a.

[0045] On the other hand, in the second pump section 30B, when the trigger section 21 is pulled backward against the biasing force, the piston 32 moves forward. When the piston 32 moves forward, the pressure inside the cylinder 31 is reduced, and the valve body 33 allows communication between the vertical supply cylinder section 10 and the cylinder 31, so that the contents can be drawn from the container body 100 into the cylinder 31. In other words, when the trigger section 21 is pulled backward against the biasing force, the second pump section 30B enters a filled state.

[0046] When the trigger section 21 is released, the trigger section 21 is biased forward and returns to its original position. At this time, in the second pump section 30B, the piston 32 moves backward. When the piston 32 moves backward, the valve body 33 blocks communication between the vertical supply cylinder section 10 and the cylinder 31, thereby pressurizing the inside of the cylinder 31. When the internal pressure of the cylinder 31 increases, the second check valve section 52B opens at a predetermined timing, and the contents of the cylinder 31 flow from the fourth communication hole 10D through the second supply passage 10b to the ejection passage 15a, and are ejected to the outside through the ejection hole 3a.

[0047] On the other hand, in the first pump section 30A, when the trigger section 21 is biased forward and returns to its original position, the piston 32 moves forward. When the piston 32 moves forward, the pressure inside the cylinder 31 is reduced, and the valve body 33 allows communication between the vertical supply cylinder section 10 and the cylinder 31, so that the contents can be drawn from the container body 100 into the cylinder 31. In other words, when the trigger section 21 is biased forward and returns to its original position, the first pump section 30A is in a filled state.

[0048] As described above, according to the trigger-type liquid dispenser 1 of this embodiment, when a finger is placed on the trigger part 21 and the trigger part 21 is moved backward, the first pump part 30A, which is connected to a position below the pivot axis 22 of the trigger part 21, causes the contents to flow toward the ejection hole 3a, so that the contents can be ejected when the trigger part 21 is operated. Furthermore, when the trigger unit 21 moves forward due to the biasing force, the second pump unit 30B, which is connected to a position above the pivot axis 22 of the trigger unit 21, causes the contents to flow toward the ejection hole 3a, so that the contents can be ejected even when the trigger unit 21 returns to its original position.

[0049] In other words, the trigger unit 21 has a pivot shaft 22 between the connection portion with the first pump unit 30A (first connecting shaft 23A) and the connection portion with the second pump unit 30B (second connecting shaft 23B) in the vertical direction. Therefore, the first pump unit 30A and the second pump unit 30B can be operated in opposite directions, like a seesaw with the pivot shaft 22 as the fulcrum. Therefore, according to the trigger-type liquid dispenser 1 of this embodiment, the contents can be dispensed not only when the trigger unit 21 is operated, but also when the trigger unit 21 returns to its original position. As a result, the amount of contents dispensed with a single operation of the trigger unit 21 can be increased, and continuous dispensing can be made possible.

[0050] As described above, the trigger-type liquid dispenser 1 according to this embodiment comprises a dispenser body 2 attached to a container body 100 that contains the contents, and a nozzle member 3 attached to the dispenser body 2 and having a discharge hole 3a formed therein for discharging the contents. The dispenser body 2 has a vertical supply cylinder portion 10 that draws up the contents from the container body 100, and a trigger portion 21 that is arranged to be movable backward in a forward biased state, and a trigger mechanism 20 that causes the contents to flow from the vertical supply cylinder portion 10 toward the discharge hole 3a as the trigger portion 21 moves forward. The trigger mechanism 20 causes the contents to flow from the vertical supply cylinder portion 10 toward the discharge hole 3a as the trigger portion 21 moves forward. The system includes a first pump unit 30A that sucks up the contents from 100 and circulates the contents toward the discharge hole 3a by moving the trigger unit 21 backward, and a second pump unit 30B positioned above the first pump unit 30A, which sucks up the contents from the container body 100 via the vertical supply cylinder 10 by moving the trigger unit backward and circulates the contents toward the discharge hole 3a by moving the trigger unit 21 forward. The trigger unit 21 has a pivot shaft 22 between the connection part with the first pump unit 30A (first connecting shaft 23A) and the connection part with the second pump unit 30B (second connecting shaft 23B) in the vertical direction. This configuration makes it possible to increase the amount of contents discharged with a single operation of the trigger unit 21 and to enable continuous discharge.

[0051] Furthermore, in this embodiment, the first pump section 30A is connected to a discharge channel 15a that communicates with the discharge hole 3a via a first supply channel 10a, and the second pump section 30B is connected to the discharge channel 15a via a second supply channel 10b that is independent of the first supply channel 10a. With this configuration, it is possible to prevent the contents that should be circulated from the first pump section 30A (second pump section 30B) toward the discharge hole 3a from flowing back toward the second pump (first pump section 30A).

[0052] Furthermore, in this embodiment, each of the first pump section 30A and the second pump section 30B includes a piston 32 that moves back and forth in conjunction with the back and forth movement of the trigger section 21, a cylinder 31 into which the piston 32 is inserted, and a valve body 33 that switches the communication between the container body 100 and the cylinder 31 via the vertical supply cylinder section 10 and the blocking of that communication. The vertical supply cylinder section 10 has a first hole (third communication hole 10C, fourth communication hole 10D) that allows contents to flow out from the cylinder 31 to the vertical supply cylinder section 10 when the piston 32 moves backward, and a second hole (first communication hole 10A, second communication hole 10B) that allows contents to flow from the container body 100 to the cylinder 31 via the vertical supply cylinder section 10 when the piston 32 moves forward, and is opened and closed by the valve body 33. The valve body 33 is provided to be movable back and forth and moves backward in conjunction with the rearward-moving piston 32 to close the second hole. With this configuration, the valve body 33 is provided to be movable back and forth and moves backward in conjunction with the rearward-moving piston 32, closing the second hole (first communication hole 10A, second communication hole 10B). Therefore, even if the valve body 33 becomes difficult to move back and forth, for example, after being left idle for a while, the valve body 33 is forcibly moved backward in conjunction with the rearward movement of the piston 32, ensuring that the valve body 33 operates reliably and blocking communication between the container body 100 and the cylinder 31 through the vertical supply cylinder 10. Subsequently, as the piston 32 returns to its original position forward, the valve body 33 is moved forward, opening the second hole (first communication hole 10A, second communication hole 10B), allowing the contents of the container body 100 to flow into the cylinder 31 through the second hole.

[0053] It should be noted that the technical scope of the present invention is not limited to the embodiments described above, and various modifications can be made without departing from the spirit of the invention. For example, it is possible to replace the components in the above embodiments with well-known components as appropriate. [Explanation of Symbols]

[0054] 1...Trigger-type liquid dispenser, 2...Dispeller body, 3...Nozzle member, 3a...Dispense hole, 4...Cover member, 5...Pipe member, 10...Vertical supply cylinder section, 10a...First supply passage, 10A...First communication hole (second hole), 10b...Second supply passage, 10B...Second communication hole (second hole), 10C...Third communication hole (first hole), 10D...Fourth communication hole (first hole), 11...Mounting cylinder section, 11a...Flange, 12...Seal member, 13...Mounting cap, 14A...First pump mounting cylinder, 14B...Second pump mounting cylinder, 15...Injection cylinder section, 15a...Dispense passage, 16...Blocking member, 17...Intermediate cylinder member, 17a...Support Component, 18…Biasing member, 19…Wall, 20…Trigger mechanism, 21…Trigger part, 21a…Front plate part, 21b…Side plate part, 21c…Top plate part, 22…Rotating shaft, 23A…First connecting shaft, 23B…Second connecting shaft, 24…Spring receiver part, 30A…First pump part, 30B…Second pump part, 31…Cylinder, 31a…Guide cylinder, 32…Piston, 32a…Sliding part, 32b…Sliding body, 32c…Insertion hole, 33…Valve body, 33a…Contact part, 50…Valve member, 51…Base part, 52A…First check valve part, 52B…Second check valve part, 53…Elastic deformation part, 100…Container body, 101…Mouth part, O…Central axis

Claims

1. A sprayer body attached to the container body that holds the contents, The device comprises a nozzle member attached to the dispenser body and having a nozzle hole formed therein for ejecting the contents, The aforementioned spray body is, A vertical supply cylinder that draws up the contents from the container body, It comprises a trigger mechanism having a trigger portion that is arranged to be movable backward in a forward biased state, and which causes the contents to flow from the vertical supply cylinder towards the ejection hole as the trigger portion moves, The trigger mechanism is A first pump unit that, when the trigger unit moves forward, sucks up the contents from the container body via the vertical supply cylinder, and when the trigger unit moves backward, causes the contents to flow toward the ejection hole. The system comprises a second pump unit positioned above the first pump unit, which, when the trigger unit moves backward, sucks up the contents from the container body via the vertical supply cylinder, and when the trigger unit moves forward, causes the contents to flow toward the ejection hole. The trigger unit has a pivot shaft between the connecting portion with the first pump unit and the connecting portion with the second pump unit in the vertical direction. Trigger-type liquid dispenser.

2. The first pump section is connected to a discharge channel that communicates with the discharge hole via a first supply channel, The second pump section is in communication with the ejection channel via a second supply channel independent of the first supply channel. The trigger-type liquid dispenser according to claim 1.

3. Each of the first pump section and the second pump section is: A piston that moves back and forth in conjunction with the back and forth movement of the trigger section, The cylinder into which the piston is inserted, The container body and the cylinder are connected via the aforementioned vertical supply cylinder, and a valve body is provided to switch between connecting and disconnecting these connections. The aforementioned vertical supply cylinder section includes: When the piston moves backward, the first hole allows the contents to flow out from the cylinder to the vertical supply cylinder, When the piston moves forward, the contents are allowed to flow from the container body into the cylinder via the vertical supply cylinder, and a second hole is formed in the valve body that opens and closes. The valve body is provided to be movable back and forth, and moves backward in conjunction with the piston that moves backward, thereby closing the second hole. A trigger-type liquid dispenser according to claim 1 or 2.

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