Trigger type liquid jetting container

Abstract

To make it possible to suppress occurrence of cracks and damage in a component constituting a jetting container body without reinforcing the component, when a trigger type liquid jetting container falls in an inverted state, and an impact force is applied from the oblique front or from the oblique rear with respect to the trigger type liquid jetting container.SOLUTION: At least on one of a front end part and a rear end part in a portion positioned below a mouth part 31 on an outer peripheral surface of a container body 5, folding lines 17, 18 extending in a circumferential direction are formed. When a trigger type liquid jetting container 1 falls in an inverted state, and an impact force is applied with respect to the trigger type liquid jetting container from the oblique front or from the oblique rear, a portion positioned further on a bottom part 34 side than the folding line out of the container body tilts in a frontward / backward direction around the folding line with respect to the portion positioned further on the mouth part side than the folding line.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a trigger-type liquid-squirting container. [Background technology]

[0002] Conventionally, trigger-type liquid ejection containers have been known, such as that shown in Patent Document 1 below, which include a container body for containing liquid, an ejector body attached to the mouth of the container body, and a nozzle member disposed on the front side of the ejector body and having an ejection hole formed therein for ejecting liquid forward. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2017-213497 Summary of the Invention [Problem to be solved by the invention]

[0004] With this type of trigger-type liquid ejection container, if it is dropped in an upside-down position and an impact force is applied from diagonally forward or backward, there is a possibility that the components that make up the ejector body may crack or break.

[0005] To provide a trigger-type liquid ejection container which can prevent cracks or breakages from occurring in parts constituting the ejector body when the container is dropped in an inverted state and an impact force is applied from diagonally forward or diagonally backward, without reinforcing the parts. [Means for solving the problem]

[0006] a trigger mechanism that causes the liquid to flow from inside the vertical supply cylinder toward the nozzle hole when the trigger mechanism moves rearward; and a trigger mechanism that causes the liquid to flow from inside the vertical supply cylinder toward the nozzle hole when the trigger mechanism moves rearward; and a trigger mechanism that causes the liquid to flow from inside the vertical supply cylinder toward the nozzle hole when the trigger mechanism moves rearward; and a trigger mechanism that causes the liquid to flow from inside the vertical supply cylinder toward the nozzle hole when the trigger mechanism moves rearward; and a trigger mechanism that causes the liquid to flow from inside the vertical supply cylinder toward the nozzle hole when the trigger mechanism moves rearward; and a trigger mechanism that causes the liquid to flow from inside the vertical supply cylinder toward the nozzle hole when the trigger mechanism moves rearward; and a trigger mechanism that causes the liquid to flow from inside the vertical supply cylinder toward the nozzle hole when the trigger mechanism moves rearward; and when viewed from a left-right direction that is perpendicular to the up-down direction and the front-rear direction, the rear end of the shoulder and when viewed from the left and right, the front end of the shoulder is composed of an upper part that extends vertically and is connected to the mouth, and a lower part that extends downward as it goes forward and is connected to the body, the lower part of the front end of the shoulder is located below the trigger in a state facing the trigger in the vertical direction, and a circumferentially extending fold line is formed on at least one of the front end and rear end of the portion of the outer surface of the container body that is located below the mouth, so that when the trigger-type liquid-spewing container is dropped in an upside-down position and an impact force is applied to the trigger-type liquid-spewing container from diagonally forward or diagonally rearward, the portion of the container body that is located closer to the bottom than the fold line will tilt in the front-to-back direction around the fold line relative to the portion that is located closer to the mouth than the fold line.

[0007] Since a circumferentially extending fold line is formed on at least one of the front and rear ends of the outer peripheral surface of the container body that is located below the mouth, when the trigger-type liquid-spewing container is dropped upside down and an impact force is applied to the trigger-type liquid-spewing container from diagonally forward or backward, the portion of the container body that is closer to the bottom than the fold line will tilt forward and backward about the fold line relative to the portion that is closer to the mouth than the fold line, thereby reducing the impact force applied to the components that make up the ejector body. Therefore, even without reinforcing the components of the ejector body by, for example, increasing the amount of resin, it is possible to prevent cracking or damage to the components of the ejector body when the trigger-type liquid-spewing container is subjected to the above-mentioned impact force. When viewed from the left and right, the rear end of the shoulder extends downward and rearward, and when viewed from the left and right, the front end of the shoulder is composed of an upper part that extends vertically and connects to the mouth, and a lower part that extends downward as it extends forward and connects to the body, and the lower part of the front end of the shoulder is positioned below and opposite the trigger part in the vertical direction, so that the trigger part can be easily moved rearward with one hand while gripping the shoulder.

[0008] At least a portion of the fold line may be located, when viewed from the left-right direction, further outward in the front-to-back direction than an area sandwiched between a first straight line connecting the lower end of the outer surface of the mouth portion and the front end of each of the ground contact portions on the outer surface of the bottom portion, and a second straight line connecting the lower end of the outer surface of the mouth portion and the rear end of each of the ground contact portions on the outer surface of the bottom portion.

[0009] At least a portion of the fold line is located further outward in the front-to-back direction than the area sandwiched between the first and second straight lines when viewed from the left and right. Therefore, when the trigger-type liquid-spewing container is dropped in an inverted position and an impact force is applied to the trigger-type liquid-spewing container from diagonally forward or diagonally backward, the impact force is effectively transmitted to the fold line, and the portion of the container body located closer to the bottom than the fold line can be reliably tilted in the front-to-back direction around the fold line relative to the portion located closer to the mouth than the fold line.

[0010] The fold line may be formed on an outer circumferential surface of the shoulder portion.

[0011] Since the fold line is formed on the outer peripheral surface of the shoulder portion, when the trigger-type liquid-squirting container is dropped in an inverted position and an impact force is applied to the trigger-type liquid-squirting container from diagonally forward or backward, the weight of the large amount of liquid in the body portion is exerted on the fold line, and the portion of the container body located on the bottom side of the fold line can be reliably tilted in the front-to-back direction around the fold line relative to the portion located on the mouth side of the fold line.

[0012] The trigger mechanism includes a main piston that moves in the front-rear direction as the trigger portion moves, and a main cylinder whose interior is pressurized and depressurized as the main piston moves and whose interior is in communication with the inside of the vertical supply tube portion. The ejector main body includes a storage cylinder that extends in the front-rear direction and into which liquid that has passed through the vertical supply tube portion is supplied from the main cylinder as the trigger portion moves rearward, a storage plunger that is disposed in the storage cylinder so as to be movable in the front-rear direction, and that moves rearward as the liquid is supplied into the storage cylinder and is urged forward, and a pressurized piston in the main cylinder. and a first check valve that blocks communication between the inside of the container body and the inside of the main cylinder through the vertical supply tube portion when the pressure inside the main cylinder is reduced, and allows communication between the inside of the container body and the inside of the main cylinder through the vertical supply tube portion when the pressure inside the main cylinder is reduced, and a second check valve that allows communication between the inside of the storage cylinder and the inside of the main cylinder through the vertical supply tube portion when the pressure inside the main cylinder is reduced, and blocks communication between the inside of the storage cylinder and the inside of the main cylinder through the vertical supply tube portion when the pressure inside the main cylinder is reduced, and the storage cylinder may be provided above the vertical supply tube portion so as to protrude forward and rearward from the vertical supply tube portion.

[0013] The ejector body is equipped with a storage cylinder, a storage plunger, a first check valve, and a second check valve, so that by pulling the trigger portion rearward, the liquid sucked up from inside the container body through the vertical supply tube portion is stored in the storage cylinder while moving the storage plunger rearward within the storage cylinder, and is then ejected to the outside from the ejection hole; then, when the operation of the trigger portion is stopped, the storage plunger moves back forward, causing the liquid in the storage cylinder to be ejected to the outside from the ejection hole. In this way, liquid can be ejected not only when the trigger portion is pulled rearward, but also when the trigger portion is not operated, and liquid can be ejected continuously. The ejector body is heavy as it is equipped with a storage cylinder and a storage plunger, and the storage cylinder is arranged above the vertical supply tube section so as to protrude forward and backward from the vertical supply tube section. Therefore, the trigger-type liquid ejection container is likely to fall upside down and be subjected to a large impact force from diagonally forward or diagonally backward. Therefore, even if such an impact force is applied to the trigger-type liquid ejection container, the above-mentioned effect of preventing cracks or damage to the parts that make up the ejector body is significantly achieved. [Effects of the Invention]

[0014] According to the present invention, when a trigger-type liquid ejection container is dropped in an inverted position and an impact force is applied to the trigger-type liquid ejection container from diagonally forward or diagonally backward, cracks or breakage in the components that make up the ejector body can be prevented without reinforcing the components. [Brief explanation of the drawings]

[0015] [Figure 1] 1 is a side view including a partial vertical cross section of a trigger-type liquid ejection container according to an embodiment of the present invention, seen from the left and right direction. [Figure 2] FIG. 2 is a top view of the container body shown in FIG. [Figure 3] 2 is a diagram showing a state in which the trigger-type liquid-squirting container shown in FIG. 1 is dropped in an upside-down state and an impact force is applied from diagonally forward. FIG. [Figure 4] 2 is a diagram showing a state in which the trigger-type liquid-squirting container shown in FIG. 1 is dropped in an inverted state and an impact force is applied from diagonally behind. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0016] Hereinafter, an embodiment of a trigger-type liquid-squirting container according to the present invention will be described with reference to FIGS. As shown in Figure 1, the trigger-type liquid ejection container 1 of this embodiment comprises a container body 5 in which liquid is contained, an ejector main body 2 attached to the container body 5, and a nozzle member 3 attached to the ejector main body 2 and having an ejection hole 4 formed therein for ejecting the liquid. Unless otherwise specified, each component part of the trigger-type liquid-spewing container 1 is a molded product made of synthetic resin.

[0017] The container body 5 is configured by connecting a mouth portion 31, a shoulder portion 32, a body portion 33, and a bottom portion 34 in this order from top to bottom along the direction of the container axis O1. Hereinafter, the direction along the container axis O1 will be referred to as the vertical direction, the direction intersecting the container axis O1 as viewed from the vertical direction will be referred to as the radial direction, and the direction going around the container axis O1 as viewed from the vertical direction will be referred to as the circumferential direction.

[0018] The mouth portion 31 is formed in a cylindrical shape and disposed coaxially with the container axis O1. A male thread portion is formed on the outer peripheral surface of the mouth portion 31. As shown in FIG. 2, the shoulder portion 32, body portion 33, and bottom portion 34 have a flattened shape with a major axis X and a minor axis Y that are perpendicular to each other at the container axis O1 in a cross section perpendicular to the up-down direction. Hereinafter, the direction in which the major axis X extends as viewed from the top-bottom direction will be referred to as the front-to-back direction, and the direction in which the minor axis Y extends as viewed from the top-to-bottom direction will be referred to as the left-to-right direction.

[0019] 1, when viewed from the left and right, the rear end of the shoulder 32 extends downward and then rearward. When viewed from the left and right, the rear end of the shoulder 32 presents a curved shape that protrudes rearward. When viewed from the left and right, the front end of the shoulder 32 is made up of an upper part 32a that extends vertically and is connected to the mouth 31, and a lower part 32b that extends downward as it moves forward and is connected to the body 33. The lower part 32b of the front end of the shoulder 32 is located below and faces the trigger 51 (described later) in the vertical direction. At the upper part of the shoulder 32, the distance between the front end and the container axis O1 in the front-to-rear direction is smaller than the distance between the rear end and the container axis O1 in the front-to-rear direction. At the lower part of the shoulder 32, the distance between the front end and the container axis O1 in the front-to-rear direction is larger than the distance between the rear end and the container axis O1 in the front-to-rear direction.

[0020] When viewed from the left and right, the rear end of the body 33 extends in the up and down direction. When viewed from the left and right, the front end of the body 33 presents a curved shape that protrudes forward. The left-right dimensions of the shoulder portion 32, the body portion 33, and the bottom portion 34 increase downward.

[0021] The ejector body 2 mainly comprises a vertical supply tube portion 10, an attachment cap 14, a storage cylinder 90, an injection tube portion 16, a trigger mechanism 50, a storage plunger 80, a biasing member 81, a ball valve 19 (first check valve), and a storage valve 20 (second check valve), and is attached to the mouth portion 31.

[0022] The vertical supply tube section 10 extends vertically and sucks up the liquid inside the container body 5. The central axis O2 of the vertical supply tube section 10 is located rearward of the container axis O1. The vertical supply tube section 10 is attached to the container body 5 by an attachment cap 14. The upper part of a pipe 15 that extends vertically and sucks up the liquid from the container body 5 is fitted into the vertical supply tube section 10. A connecting tube 30 extending forward is provided at the upper end of the vertical supply tube 10. The inside of the connecting tube 30 is in communication with the inside of the vertical supply tube 10.

[0023] A cylinder tube portion 40 is provided below the connecting tube portion 30 and above the mounting cap 14. The cylinder tube portion 40 protrudes forward from the vertical supply tube portion 10 and opens forward. A main cylinder 53 is fitted into the cylinder tube portion 40. The main cylinder 53 is formed in a bottomed cylindrical shape that opens forward and is closed at the rear. The inside of the main cylinder 53 is connected to the inside of the vertical supply tube portion 10.

[0024] The storage cylinder 90 extends in the front-to-rear direction and is disposed above the vertical supply tube section 10 and the connecting tube section 30. The lower end of the storage cylinder 90 is integrally formed with the upper end of the vertical supply tube section 10 and the upper end of the connecting tube section 30. The storage cylinder 90 is disposed above the vertical supply tube section 10 so as to protrude forward and rearward from the vertical supply tube section 10. Liquid that has passed through the vertical supply tube section 10 and the connecting tube section 30 is supplied to the interior of the storage cylinder 90 (a storage space 90a described below) by the rearward swing of the trigger section 51.

[0025] The injection tube portion 16 extends forward from the storage cylinder 90. The injection tube portion 16 is in communication with the interior of the vertical supply tube portion 10 through the storage cylinder 90 (storage space 90a) and the connecting tube portion 30. The injection tube portion 16 guides the liquid that has passed through the vertical supply tube portion 10, the connecting tube portion 30, and the storage cylinder 90 (storage space 90a) to the ejection hole 4.

[0026] The storage plunger 80 is disposed so as to be movable in the front-rear direction within the storage cylinder 90. The storage plunger 80 slides tightly within the storage cylinder 90 in the front-rear direction. At the forwardmost position, storage plunger 80 blocks communication between the interior of vertical supply tube portion 10 and ejection hole 4 (inside injection tube portion 16) through the interior of injection tube portion 16. When storage plunger 80 moves rearward from the forwardmost position, it connects the interior of vertical supply tube portion 10 and ejection hole 4 through the interior of injection tube portion 16. Within the storage cylinder 90, a storage space 90a located forward of the storage plunger 80 stores the liquid that has passed through the vertical supply tube portion 10 and the connecting tube portion 30. The storage space 90a expands as the storage plunger 80 moves rearward as the liquid is supplied.

[0027] The biasing member 81 biases the storage plunger 80 forward. The biasing member 81 is disposed in a portion of the storage cylinder 90 that is located rearward of the storage plunger 80. In the initial state before the user operates the trigger portion 51, the biasing member 81 biases the storage plunger 80 forward, causing the storage plunger 80 to be positioned at the frontmost position. The biasing member 81 is a metal coil spring that extends in the front-to-rear direction. However, for example, a resin spring or other elastic members may be used as the biasing member 81.

[0028] As the liquid is supplied to the storage space 90a of the storage cylinder 90, when the liquid pressure in the storage space 90a reaches a predetermined value, the storage plunger 80 moves rearward against the forward biasing force of the biasing member 81. This makes it possible to supply the liquid in the storage space 90a to the ejection hole 4 side. The storage plunger 80 functions as a pressure accumulator valve.

[0029] The trigger mechanism 50 includes a trigger portion 51, the main cylinder 53, a main piston 52, and a coil spring (biasing member) 54. The trigger mechanism 50 is capable of causing the liquid to flow from inside the vertical supply tube portion 10 toward the ejection holes 4 by the rearward swing of the trigger portion 51.

[0030] The trigger portion 51 is disposed in front of the vertical supply tube portion 10 in a forward biased state so as to be movable rearward. The trigger portion 51 is formed to extend in the vertical direction and is disposed below the injection tube portion 16. The upper end portion of the trigger portion 51 is journaled to the nozzle member 3 so as to be swingable in the front-rear direction. The trigger portion 51 extends downward from the nozzle member 3. The trigger portion 51 straddles the front of the main cylinder 53 in the vertical direction. The lower end portion of the trigger portion 51 is located forward of the lower end portion of the mouth portion 31 and faces it in the front-rear direction.

[0031] In the illustrated example, a stopper T is movably provided in the gap in the front-rear direction between the trigger portion 51 and the main cylinder 53. The stopper T restricts the rearward swing of the trigger portion 51 by abutting against both the trigger portion 51 and the main cylinder 53. The stopper T does not necessarily have to be provided.

[0032] The main piston 52 is disposed inside the main cylinder 53 so as to be movable in the front-rear direction. The main piston 52 is movable in the front-rear direction in conjunction with the swing of the trigger portion 51. The interior of the main cylinder 53 is pressurized and depressurized as the main piston 52 moves in the front-rear direction. The main piston 52 is formed in a cylindrical shape with a top that is open at the rear and closed at the front. The main piston 52 is biased forward together with the trigger part 51 by the biasing force of the coil spring 54. As the trigger part 51 swings rearward, the main piston 52 moves rearward and is pushed into the main cylinder 53. When the trigger part 51 is in the forward-most swing position, the main piston 52 is located at the corresponding forward-most position.

[0033] The coil spring (biasing member) 54 is made of metal. The coil spring 54 is disposed coaxially with the main piston 52 and the main cylinder 53, and biases the trigger portion 51 forward via the main piston 52. The coil spring 54 is disposed between the top wall of the main piston 52 and the bottom wall of the main cylinder 53. The material of the coil spring 54 is not limited to metal, and may be made of, for example, resin.

[0034] The ball valve 19 and the storage valve 20 are provided separately on both sides of the communicating portion with the main cylinder 53 in the vertical supply tube portion 10 in the vertical direction. The ball valve 19 is provided in the vertical supply tube section 10 at a portion located below the portion communicating with the inside of the main cylinder 53. The ball valve 19 is a check valve that blocks communication between the inside of the container body 5 and the inside of the main cylinder 53 through the inside of the vertical supply tube section 10 when the inside of the main cylinder 53 is pressurized, and displaces upward when the inside of the main cylinder 53 is depressurized, thereby allowing communication between the inside of the container body 5 and the inside of the main cylinder 53 through the inside of the vertical supply tube section 10. The storage valve 20 is provided above the ball valve 19. The storage valve 20 is a check valve that allows communication between the storage cylinder 90 and the main cylinder 53 through the vertical supply tube portion 10 when the main cylinder 53 is pressurized, and blocks communication between the storage cylinder 90 and the main cylinder 53 through the vertical supply tube portion 10 when the main cylinder 53 is depressurized.

[0035] The nozzle member 3 is disposed on the front side of the ejector main body 2. The nozzle member 3 is fitted onto the front of the injection tube portion 16. The nozzle member 3 has an ejection hole 4 that opens forward and ejects liquid forward, formed in the portion of the nozzle member 3 that protrudes forward from the injection tube portion 16.

[0036] In this embodiment, the vertical supply tube portion 10 is formed in a double-tube shape having an outer tube 11 and an inner tube 12 .

[0037] The outer cylinder 11 has a large diameter portion 11a, a small diameter portion 11b, and an annular connecting portion 11c. The small diameter portion 11b is disposed coaxially with the central axis O2. The small diameter portion 11b is provided above the large diameter portion 11a and is formed with a smaller diameter than the large diameter portion 11a. The small diameter portion 11b is formed integrally with the storage cylinder 90 and extends downward from the storage cylinder 90. The annular connecting portion 11c radially connects the upper end of the large diameter portion 11a and the lower end of the small diameter portion 11b.

[0038] The inner cylinder 12 has a large diameter portion 12a, a small diameter portion 12b, and an annular connecting portion 12c. The large diameter portion 12a opens into the mouth portion 31 of the container body 5. The large diameter portion 12a is fitted into the large diameter portion 11a of the outer cylinder 11. The small diameter portion 12b is provided radially inside the large diameter portion 12a and is formed with a smaller diameter than the large diameter portion 12a. A ball valve 19 and a storage valve 20 are provided in the small diameter portion 12b, and the liquid in the container body 5 is supplied thereto. The annular connecting portion 12c radially connects the inner peripheral surface of the large diameter portion 12a and the outer peripheral surface of the small diameter portion 12b.

[0039] The lower end of the large diameter portion 12a protrudes downward beyond the large diameter portion 11a of the outer cylinder 11. A flange 12d protruding radially outward is formed on the portion of the large diameter portion 12a that protrudes downward beyond the large diameter portion 11a of the outer cylinder 11. The flange 12d is disposed within the attachment cap 14 and engages the attachment cap 14 so as to be rotatable around the container axis O1. The flange 12d is sandwiched vertically between the inner surface of the attachment cap 14 and the upper opening edge of the mouth 31 of the container body 5. This fixes the vertical supply tube portion 10 to the mouth 31 of the container body 5. The small diameter portion 12b is disposed coaxially with the central axis O2. The small diameter portion 12b is disposed within the small diameter portion 11b of the outer cylinder 11. The upper portion of the pipe 15 is fitted into the lower portion of the small diameter portion 12b. The lower end opening of the pipe 15 is located within the bottom portion 34 of the container body 5.

[0040] Next, a description will be given of a case where the trigger-type liquid ejection container 1 configured as described above is used. It is assumed that the liquid is filled into each part of the ejector body 2 and the nozzle member 3 by operating the trigger part 51 multiple times.

[0041] After moving the stopper T away from the main cylinder 53, the user operates the trigger portion 51 by pulling it backward against the biasing force of the coil spring 54. This moves the main piston 52 backward from its forwardmost position, and the inside of the main cylinder 53 is pressurized. As a result, the liquid in the main cylinder 53 is supplied to the vertical supply tube portion 10. The liquid supplied to the vertical supply tube portion 10 presses the ball valve 19 downward and pushes the storage valve 20 upward.

[0042] This allows the liquid in the vertical supply tube portion 10 to be supplied to the storage space 90a of the storage cylinder 90 through the connecting tube portion 30, thereby pressurizing the storage space 90a. Therefore, as the storage space 90a is pressurized, the storage plunger 80 can be moved rearward from the most forward position against the biasing force of the biasing member 81, allowing the liquid to be stored (filled) in the storage space 90a.

[0043] By moving storage plunger 80 rearward, the liquid in storage space 90a, whose pressure has increased, can be guided to ejection hole 4 through injection tube portion 16. This allows the liquid to be ejected forward from ejection hole 4. As described above, each time the trigger portion 51 is pulled rearward, liquid can be ejected from the ejection hole 4, and the storage plunger 80 can be moved rearward to store the liquid in the storage space 90a.

[0044] Thereafter, when the trigger portion 51 is released, the main piston 52 moves forward in the main cylinder 53 due to the elastic restoring force (biasing force) of the coil spring 54, and the trigger portion 51 also moves forward in its restoration state. As a result, the pressure inside the main cylinder 53 can be reduced to a pressure lower than the pressure inside the container body 5, and the ball valve 19 can be raised while the storage valve 20 remains closed. Therefore, the liquid inside the container body 5 can be sucked up into the vertical supply tube portion 10 and introduced into the main cylinder 53, preparing for the next ejection.

[0045] When the rearward operation of the trigger portion 51 is stopped, the supply of liquid to the storage space 90a through the vertical supply tube portion 10 and the connecting tube portion 30 stops, but the storage plunger 80 begins to move forward toward the most forward position due to the biasing force of the biasing member 81. At this time, the outflow of liquid from the storage space 90a into the vertical supply tube portion 10 is restricted by the storage valve 20. As a result, the liquid stored in the storage space 90a can be guided through the injection tube portion 16 to the ejection hole 4, and the liquid can be continuously ejected forward through the ejection hole 4.

[0046] Furthermore, in this embodiment, fold lines 17, 18 extending in the circumferential direction are formed on at least one of the front end and rear end of the outer peripheral surface of the container body 5, in a portion located below the mouth 31. The fold lines 17, 18 are formed separately on both ends of the outer peripheral surface of the container body 5 in the front-to-rear direction. As shown in Figures 3 and 4, when the trigger-type liquid-squirting container 1 is dropped in an inverted position and an impact force is applied to the trigger-type liquid-squirting container 1 from diagonally forward or backward, the portion of the container body 5 located closer to the bottom 34 than the fold lines 17, 18 tilts in the front-to-back direction around the fold lines 17, 18 relative to the portion located closer to the mouth 31 than the fold lines 17, 18. 3 and 4, the two-dot chain line indicates the container body 5 before deformation shown in FIG.

[0047] When viewed from the left and right, at least a portion of the fold lines 17, 18 is located outward in the front-rear direction from a region sandwiched between a first straight line L1 connecting the lower end of the outer peripheral surface of the mouth portion 31 and the front end of the ground contact portion 34a on the outer surface of the bottom portion 34, and a second straight line L2 connecting the lower end of the outer peripheral surface of the mouth portion 31 and the rear end of the ground contact portion 34a on the outer surface of the bottom portion 34. The first straight line L1 extends forward as it extends downward, and the second straight line L2 extends backward as it extends downward. The fold lines 17, 18 are formed on the outer peripheral surface of the shoulder portion 32. The fold lines 17, 18 may also be formed on the outer peripheral surface of the body portion 33.

[0048] Hereinafter, the fold line formed at the front end of the outer circumferential surface of the container body 5 will be referred to as the first fold line 17, and the fold line formed at the rear end of the outer circumferential surface of the container body 5 will be referred to as the second fold line 18.

[0049] At least a portion of the first fold line 17 is located forward of the first straight line L1 when viewed from the left-right direction, and at least a portion of the second fold line 18 is located rearward of the second straight line L2 when viewed from the left-right direction. When viewed from the left-right direction, the rear end of the first fold line 17 and the front end of the second fold line 18 may be located in a region sandwiched in the front-rear direction between the first straight line L1 and the second straight line L2.

[0050] 2, the circumferential length of the first fold line 17 is shorter than the circumferential length of the second fold line 18. Note that the circumferential length of the first fold line 17 may be set to be equal to or greater than the circumferential length of the second fold line 18. The first fold line 17 and the second fold line 18 are symmetrical with respect to the major axis X when viewed from the top-bottom direction. The first fold line 17 and the second fold line 18 are spaced apart from the minor axis Y in the front-to-back direction when viewed from the top-to-bottom direction.

[0051] The first fold line 17 is provided on the lower portion 32b of the front end portion of the shoulder portion 32. The first fold line 17 is located below the second fold line 18. The first fold line 17 may be located at the same vertical position as the second fold line 18, or may be located above it. The first fold line 17 is a step that extends in the vertical direction and faces radially outward. The first fold line 17 may be a groove that is recessed radially inward and extends circumferentially. The second fold line 18 is a groove that is recessed radially inward and extends circumferentially. The second fold line 18 may be a step that extends radially outward and faces upward.

[0052] As described above, according to the trigger-type liquid spray container 1 of this embodiment, circumferentially extending fold lines 17, 18 are formed on at least one of the front and rear ends of the outer peripheral surface of the container body 5 at a portion located below the mouth 31. Therefore, when the trigger-type liquid spray container 1 is dropped upside down and an impact force is applied to the trigger-type liquid spray container 1 from diagonally forward or diagonally backward, the portion of the container body 5 located closer to the bottom 34 than the fold lines 17, 18 will tilt forward and backward about the fold lines 17, 18 relative to the portion located closer to the mouth 31 than the fold lines 17, 18, thereby reducing the impact force applied to the components that make up the sprayer body 2. Therefore, even without reinforcing the components of the sprayer body 2 by, for example, increasing the amount of resin, cracks and breakages can be prevented from occurring in the components of the sprayer body 2 when the trigger-type liquid spray container 1 is subjected to the above-mentioned impact force.

[0053] For example, as shown in Figure 3, when the trigger-type liquid ejection container 1 is dropped in an inverted position and an impact force is applied to the nozzle member 3 from diagonally forward, the portion of the container body 5 located closer to the bottom 34 than the fold lines 17, 18 will tilt forward around the first fold line 17 relative to the portion located closer to the mouth 31 than the fold lines 17, 18. Furthermore, as shown in Figure 4, when the trigger-type liquid ejection container 1 is dropped in an inverted position and an impact force is applied to the ejector body 2 from diagonally behind, the portion of the container body 5 located closer to the bottom 34 than the fold lines 17, 18 will tilt backward around the second fold line 18 relative to the portion located closer to the mouth 31 than the fold lines 17, 18. In either of these cases, the container body 5 deforms from the state shown by the dotted line to the state shown by the solid line, thereby reducing the impact force applied to the components that make up the ejector main body 2, and thereby preventing, for example, breakage of the connection portion between the small diameter portion 12b of the inner tube 12 and the annular connecting portion 12c.

[0054] When viewed from the left and right, the rear end of the shoulder portion 32 extends downward and rearward, and when viewed from the left and right, the front end of the shoulder portion 32 is composed of an upper portion 32a that extends in the vertical direction and is connected to the mouth portion 31, and a lower portion 32b that extends downward as it extends forward and is connected to the body portion 33, and the lower portion 32b of the front end of the shoulder portion 32 is located below and opposite the trigger portion 51 in the vertical direction, so that the trigger portion 51 can be easily moved rearward with one hand while gripping the shoulder portion 32.

[0055] At least a portion of the folding lines 17, 18 is located further outward in the front-to-back direction than the area sandwiched between the first straight line L1 and the second straight line L2 when viewed from the left and right. Therefore, when the trigger-type liquid ejection container 1 is dropped in an inverted position and an impact force is applied to the trigger-type liquid ejection container 1 from diagonally forward or diagonally backward, the impact force is effectively transmitted to the folding lines 17, 18, and the portion of the container body 5 located closer to the bottom 34 than the folding lines 17, 18 can be reliably tilted in the front-to-back direction around the folding lines 17, 18 relative to the portion located closer to the mouth 31 than the folding lines 17, 18.

[0056] Since the folding lines 17, 18 are formed on the outer peripheral surface of the shoulder portion 32, when the trigger-type liquid-squirting container 1 is dropped in an inverted position and an impact force is applied to the trigger-type liquid-squirting container 1 from diagonally forward or diagonally backward, the weight of the large amount of liquid in the body portion 33 is exerted on the folding lines 17, 18, and the portion of the container body 5 located closer to the bottom 34 than the folding lines 17, 18 can be reliably tilted in the front-to-back direction around the folding lines 17, 18 relative to the portion located closer to the mouth portion 31 than the folding lines 17, 18.

[0057] Since the ejector main body 2 is equipped with a storage cylinder 90, a storage plunger 80, a ball valve 19, and a storage valve 20, as described above, liquid can be ejected not only when the trigger portion 51 is pulled backward, but also when the trigger portion 51 is not operated, and continuous ejection of liquid is possible. The ejector body 2 is heavy as it is equipped with a storage cylinder 90 and a storage plunger 80, and the storage cylinder 90 is arranged above the vertical supply tube section 10 so as to protrude forward and backward from the vertical supply tube section 10. Therefore, the trigger-type liquid ejection container 1 falls in an inverted position, and the trigger-type liquid ejection container 1 is likely to be subjected to a large impact force from diagonally forward or diagonally backward. Therefore, even if such an impact force is applied to the trigger-type liquid ejection container 1, the above-mentioned effect of preventing cracks or damage to the parts that make up the ejector body 2 is significantly achieved.

[0058] The technical scope of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

[0059] The reservoir cylinder 90 and reservoir plunger 80 may not be provided.

[0060] In addition, within the scope of the spirit of the present invention, it is possible to replace the components in the above-described embodiments with well-known components as appropriate, and the above-described embodiments and variations may be combined as appropriate.

[0061] The aspects of the present invention are as follows, for example. <1> a container body configured by connecting a mouth portion, a shoulder portion, a body portion, and a bottom portion in this order from top to bottom along a container axial direction, and for containing a liquid; an ejector body attached to the mouth portion; a nozzle member disposed on the front side of the ejector body and having an ejection hole formed therein for ejecting liquid forward, The ejector body includes: a vertical supply tube portion extending in the vertical direction and sucking up the liquid in the container body; a trigger mechanism including a trigger portion disposed in front of the vertical supply tube portion and movable rearward in a forward biased state, the trigger portion moving rearward to cause the liquid to flow from inside the vertical supply tube portion toward the ejection hole, When viewed in a left-right direction perpendicular to the up-down direction and the front-rear direction, a rear end portion of the shoulder portion extends downward and rearward, When viewed from the left-right direction, the front end of the shoulder portion is configured with an upper portion that extends in the vertical direction and is connected to the mouth portion, and a lower portion that extends downward toward the front and is connected to the body portion, a lower portion of a front end portion of the shoulder portion is positioned below the trigger portion while facing the trigger portion in the up-down direction; a fold line extending in a circumferential direction is formed on at least one of a front end and a rear end of a portion of the outer circumferential surface of the container body that is located below the mouth portion, When the trigger-type liquid-squirting container is dropped in an inverted position and an impact force is applied to the trigger-type liquid-squirting container from diagonally forward or backward, the portion of the container body located closer to the bottom than the fold line tilts forward and backward around the fold line relative to the portion located closer to the mouth than the fold line. <2> At least a part of the folding line is located, when viewed from the left and right direction, outside of an area sandwiched in the front-rear direction by a first straight line connecting the lower end of the outer peripheral surface of the mouth portion and the front end of the ground contact portion of the outer surface of the bottom portion, and a second straight line connecting the lower end of the outer peripheral surface of the mouth portion and the rear end of the ground contact portion of the outer surface of the bottom portion. <1> Trigger-type liquid ejection container according to claim 1. <3> The folding line is formed on the outer peripheral surface of the shoulder portion. <1> or <2> Trigger-type liquid ejection container according to claim 1. <4> The trigger mechanism comprises: a main piston that moves in the front-rear direction in accordance with the movement of the trigger portion; a main cylinder whose interior is pressurized and depressurized in accordance with the movement of the main piston and whose interior is in communication with the vertical supply cylindrical portion; The ejector body includes: a storage cylinder extending in the front-rear direction and into which the liquid that has passed through the vertical supply tube portion is supplied from the main cylinder by rearward movement of the trigger portion; a storage plunger disposed in the storage cylinder so as to be movable in the front-rear direction, and which moves rearward and is biased forward as liquid is supplied into the storage cylinder; a first check valve that blocks communication between the container body and the main cylinder through the vertical supply tube portion when the main cylinder is pressurized, and allows communication between the container body and the main cylinder through the vertical supply tube portion when the main cylinder is depressurized; a second check valve that allows communication between the storage cylinder and the main cylinder through the vertical supply tube portion when the main cylinder is pressurized, and blocks communication between the storage cylinder and the main cylinder through the vertical supply tube portion when the main cylinder is depressurized; The storage cylinder is provided above the vertical supply tube portion so as to protrude forward and rearward from the vertical supply tube portion. <1> from <3> 10. A trigger-type liquid ejection container according to any one of the preceding items. [Explanation of symbols]

[0062] 1 trigger-type liquid spray container 2 Squirt body 3 Nozzle member 4 Spout hole 5. Container body 10 Vertical supply tube 17, 18 Bending lines 19 Ball valve (first check valve) 20 Retention valve (second check valve) 31 Mouth 32 Shoulder 32a Upper part of the front edge of the shoulder 32b Lower part of front edge of shoulder 33 Torso 34 Bottom 34a Grounding part 50 Trigger mechanism 51 Trigger section 52 Main piston 53 Main cylinder 80 Reservoir plunger 90 Storage cylinder L1 1st straight line L2 2nd straight line O1 Container axis

Claims

1. a container body configured by connecting a mouth portion, a shoulder portion, a body portion, and a bottom portion in this order from top to bottom along a container axial direction, and for containing a liquid; an ejector body attached to the mouth portion; a nozzle member disposed on the front side of the ejector body and having an ejection hole formed therein for ejecting liquid forward, The ejector body includes: a vertical supply tube portion extending in the vertical direction and sucking up the liquid in the container body; a trigger mechanism including a trigger portion disposed in front of the vertical supply tube portion and movable rearward in a forward biased state, the trigger portion moving rearward to cause the liquid to flow from inside the vertical supply tube portion toward the ejection hole, When viewed in a left-right direction perpendicular to the up-down direction and the front-rear direction, a rear end portion of the shoulder portion extends downward and rearward, When viewed from the left-right direction, the front end of the shoulder portion is configured with an upper portion that extends in the vertical direction and is connected to the mouth portion, and a lower portion that extends downward toward the front and is connected to the body portion, a lower portion of a front end portion of the shoulder portion is positioned below the trigger portion while facing the trigger portion in the up-down direction; a fold line extending in a circumferential direction is formed on at least one of a front end and a rear end of a portion of the outer circumferential surface of the container body that is located below the mouth portion, When the trigger-type liquid-squirting container is dropped in an inverted position and an impact force is applied to the trigger-type liquid-squirting container from diagonally forward or backward, the portion of the container body located closer to the bottom than the fold line tilts forward and backward around the fold line relative to the portion located closer to the mouth than the fold line.

2. 2. The trigger-type liquid ejection container of claim 1, wherein at least a portion of the fold line is located, when viewed from the left-right direction, outside the area sandwiched in the front-to-back direction between a first straight line connecting the lower end of the outer surface of the mouth and the front end of the contact portions of the outer surface of the bottom, and a second straight line connecting the lower end of the outer surface of the mouth and the rear end of the contact portions of the outer surface of the bottom.

3. 3. The trigger-type liquid-squirting container according to claim 1, wherein the bend line is formed on the outer peripheral surface of the shoulder portion.

4. The trigger mechanism comprises: a main piston that moves in the front-rear direction in accordance with the movement of the trigger portion; a main cylinder whose interior is pressurized and depressurized in accordance with the movement of the main piston and whose interior is in communication with the vertical supply cylindrical portion; The ejector body includes: a storage cylinder extending in the front-rear direction and into which the liquid that has passed through the vertical supply tube portion is supplied from the main cylinder by rearward movement of the trigger portion; a storage plunger disposed in the storage cylinder so as to be movable in the front-rear direction, and which moves rearward and is biased forward as liquid is supplied into the storage cylinder; a first check valve that blocks communication between the container body and the main cylinder through the vertical supply tube portion when the main cylinder is pressurized, and allows communication between the container body and the main cylinder through the vertical supply tube portion when the main cylinder is depressurized; a second check valve that allows communication between the storage cylinder and the main cylinder through the vertical supply tube portion when the main cylinder is pressurized, and blocks communication between the storage cylinder and the main cylinder through the vertical supply tube portion when the main cylinder is depressurized, 3. The trigger-type liquid ejection container according to claim 1, wherein the storage cylinder is provided above the vertical supply tube portion so as to protrude forward and rearward from the vertical supply tube portion.

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