Ejector

Abstract

The present invention improves the operability of a dispenser that is provided with a stopper member that switches an operating lever between a locked state and an unlocked state. [Solution] This dispenser 1 comprises an operating lever 24 that drives the pump mechanism, a stopper member 30 that regulates the downward depression of the discharge head 23, and a support portion 15 that rotatably supports the stopper member 30, the support portion 15 having a through hole 16 that penetrates in the front-to-rear direction, and the stopper member 30 having a stopper piece 35 that is inserted into the through hole 16 in the locked position and comes out of the through hole 16 in the unlocked position and abuts against the opening edge on the rear side of the through hole 16, and a pair of slits 34 formed on both left and right sides of the stopper piece 35 in the operating wall 31, allowing the first portion 31A on which the stopper piece 35 of the operating wall 31 is formed to be elastically deformable in the front-to-rear direction independently of second portions 31B on both left and right sides of the first portion 31A.

Description

[Technical Field]

[0001] The present invention relates to a dispenser. [Background technology]

[0002] A dispenser described in Patent Document 1 below has been known. In this dispenser, when an operating lever (trigger lever) is operated, a stem with a discharge head is depressed in conjunction with the operation, driving a pump mechanism, and the content liquid is sucked up from the container body through the stem and dispensed from the discharge head. The dispenser is provided with a stopper member that is switchable between a locked state that restricts downward movement of the discharge head and an unlocked state that swings backward from the locked state to allow downward movement of the discharge head. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2019-98241 Summary of the Invention [Problem to be solved by the invention]

[0004] In the dispenser described in Patent Document 1, the stopper member is configured to swing within the narrow space between the stem and the support, and since the stopper member can swing freely in the unlocked state, there is a possibility that the stopper member may unintentionally return from the unlocked state to the locked state when the operating lever is operated. For this reason, there is room for improvement in the operability (usability) when locking and unlocking the stopper member.

[0005] The present invention has been made in view of the above circumstances, and its object is to improve the operability of a dispenser that is provided with a stopper member that switches the operating lever between a locked state and an unlocked state. [Means for solving the problem]

[0006] The dispenser according to the present invention comprises an attachment cap to which a container body is attached, a pump mechanism that sucks up the liquid contents from the container body, a stem that is arranged to be able to move downwards while being biased upward relative to the pump mechanism, a dispenser head that is connected to the upper end of the stem and that dispenses the liquid contents sucked up through the stem, an operating lever that presses down the dispenser head to drive the pump mechanism, a stopper member that is movable between a locked position that restricts the dispenser head from being pressed down and an unlocked position that rotates rearward from the locked position and allows the dispenser head to be pressed down, and a support portion that rotatably supports the stopper member, the support portion having a through hole that penetrates in the front-to-rear direction, and the stopper member the stopper piece extending forward from the operating wall, inserted into the through hole in the locked position, and coming out of the through hole in the unlocked position to abut against the rear opening edge of the through hole; the operating wall disposed rearward of the support portion; the stopper piece extending forward from the operating wall, inserted into the through hole in the locked position, and coming out of the through hole in the unlocked position to abut against the rear opening edge of the through hole; and a pair of slits formed on both left and right sides of the stopper piece in the operating wall, allowing a first portion of the operating wall in which the stopper piece is formed to be elastically deformable in the front-to-rear direction independently of second portions on both left and right sides of the first portion.

[0007] According to the dispenser of the present invention, when the stopper member is rotated backward from the locked position toward the unlocked position, the stopper piece provided on the stopper member comes out of the through hole formed in the support part and abuts against the opening edge on the rear side of the through hole, restricting the forward rotation of the stopper member, thereby preventing the stopper member from unintentionally returning from the unlocked position to the locked position when the operating lever is operated. Here, the stopper piece is provided in a first portion sandwiched between a pair of slits in the operating wall of the stopper member, and can elastically deform independently of the second portions on both sides of it in the left-right direction, making it easier for the stopper piece to slip out rearward from the through hole. Furthermore, when rotating the stopper member forward from the unlocked position toward the locked position, the stopper piece is pushed forward to elastically deform the first part, and the stopper piece is inserted into the through hole, allowing the stopper member to rotate forward, so that the stopper member can be smoothly returned to the locked position.

[0008] (2) A reinforcing rib may be provided to connect the stopper piece and the first portion.

[0009] In this case, when the stopper piece is pushed forward, the presence of the reinforcing rib alleviates stress concentration at the base of the stopper piece, while making it easier to elastically deform the first part of the operating wall around the end portions of the pair of slits as an axis, making it easier to insert the stopper piece into the through hole. [Effects of the Invention]

[0010] According to the dispenser of the present invention, it is possible to improve the operability of the dispenser that is provided with a stopper member that switches the operating lever between the locked state and the unlocked state. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is a configuration diagram of a dispenser according to an embodiment of the present invention. [Figure 2] 2 is a view of the operation wall shown in FIG. 1 taken along the arrow A. FIG. [Figure 3] 2 is a view of the operation wall shown in FIG. 1 taken along the arrow B. FIG. [Figure 4] 2 is a view of the support part shown in FIG. 1 taken along the arrow A. FIG. [Figure 5] FIG. 2 is a cross-sectional view of a main part of the dispenser according to the embodiment of the present invention, showing a locked state. [Figure 6] FIG. 10 is a cross-sectional view of a main part showing a state in which the locked state of the dispenser according to the embodiment of the present invention is released. [Figure 7] FIG. 2 is a cross-sectional view of a main part of the dispenser according to the embodiment of the present invention, showing an unlocked state. [Figure 8] FIG. 10 is a cross-sectional view of a main part showing a state in which the dispenser according to the embodiment of the present invention is released from an unlocked state. DETAILED DESCRIPTION OF THE INVENTION

[0012] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A dispenser according to an embodiment of the present invention will now be described with reference to the drawings.

[0013] As shown in Figure 1, the dispenser 1 is detachably attached to the mouth 3 of the container body 2, and dispenses the liquid content contained in the container body 2. The components of the dispenser 1 are mainly made of synthetic resin material.

[0014] Discharger 1 includes an attachment cap 11, a pump mechanism 20, a suction tube 21, a stem 22, a discharge head 23, an operating lever 24, and a stopper member 30. Discharger 1 is a trigger-type liquid sprayer in which, by gripping operating lever 24, discharge head 23 is lowered and the liquid content is sprayed from the tip of nozzle portion 23A of discharge head 23. The liquid content contained in container body 2 may be, for example, a lotion, a cleanser, an alcohol-based disinfectant, etc., but is not limited to these.

[0015] In the following description, the direction in which the stem 22 extends along the container axis O is referred to as the up-down direction, with the container body 2 side in the up-down direction being referred to as the bottom, and the ejection head 23 side being referred to as the top. Furthermore, a direction perpendicular to the up-down direction is referred to as the front-rear direction, and a direction perpendicular to both the up-down direction and the front-rear direction is referred to as the left-right direction. Furthermore, within the front-rear direction, the side from which the liquid content is ejected from the tip of the ejection head 23 is referred to as the front, and the opposite side is referred to as the rear.

[0016] The attachment cap 11 is formed in the shape of a cylinder with a top and an opening formed in the center. The attachment cap 11 is fitted into the cylinder 20A of the pump mechanism 20. The attachment cap 11 has an internal thread formed on its inner peripheral surface that screws into a male thread formed on the outer peripheral surface of the mouth 3 of the container body 2. The attachment cap 11 is threadedly engaged with the mouth 3 of the container body 2. This allows the attachment cap 11 to be detachably attached to the container body 2.

[0017] A guide tube portion 12 that guides the stem 22 in the up and down direction is attached to the upper end of the cylinder 20A inserted through the opening of the mounting cap 11. A support portion 15 that extends rearward from the rear side surface is integrally formed with the guide tube portion 12. Convex shaft portions 13 protrude from both the left and right side surfaces of the guide tube portion 12. The support portion 15 has a back surface 15A that slopes upward toward the rear, and a pair of side surfaces 15B connected to the back surface 15A. Convex rotation shafts 15a protrude from the upper ends of the pair of side surfaces 15B.

[0018] The pump mechanism 20 is configured to include a cylinder 20A and a piston (not shown) disposed within the cylinder 20A. The pump mechanism 20 is configured to suck up the content liquid within the container body 2 from the lower end of the suction tube 21 through the stem 22 by gripping and releasing the operating lever 24 back and forth, and then discharge the content liquid to the outside from the tip of the nozzle portion 23A of the discharge head 23 connected to the upper end of the stem 22. The suction tube 21 extends downward from the cylinder 20A, and its lower end is located near the bottom of the container body 2.

[0019] The stem 22 extends upward from the cylinder 20A and protrudes upward through the mounting cap 11 and the guide tube portion 12. The lower part of the stem 22 is connected to a piston (not shown) in the cylinder 20A, so that when the stem 22 descends, the piston also descends within the cylinder 20A. A biasing member (not shown) that biases the stem 22 and the piston upward is disposed within the cylinder 20A, and the stem 22 is capable of moving up and down integrally with the discharge head 23.

[0020] The ejection head 23 has a nozzle portion 23A that is connected to the upper end of the stem 22 and extends forward, and a head rear portion 23B that protrudes rearward from the upper end of the stem 22. A flow path (not shown) that communicates with the inside of the stem 22 is formed inside the nozzle portion 23A.

[0021] The operating lever 24 is attached to the support part 15 via a rotation shaft 15a. As a result, the operating lever 24 is connected to the support part 15 so as to be swingable around an axis extending in the left-right direction. The operating lever 24 has a top plate part 24C that covers the discharge head 23 from above, a front plate part 24B that extends gradually downward as it extends forward from the front end edge of the top plate part 24C, and a pair of side plate parts 24A that extend downward from both left and right side end edges of the top plate part 24C and face each other in the left-right direction. Engagement holes 24a that rotatably engage with the rotation shaft 15a are formed in the pair of side plate parts 24A.

[0022] The discharge head 23 is disposed in the internal space surrounded by the top plate 24C and the pair of side plate portions 24A. The pair of side plate portions 24A are disposed so as to sandwich the discharge head 23 from the left and right. The top plate portion 24C has a smoothly curved shape that bulges upward, and its rear end abuts against the upper end of the support portion 15 from above. This prevents the operating lever 24 from swinging further upward around the rotation axis 15a.

[0023] A window 24D penetrating the top panel 24C is formed in the front portion of the top panel 24C. The window 24D is formed in the center of the top panel 24C in the left-right direction and opens forward. This causes the front portion of the top panel 24C to have a bifurcated shape in the left-right direction. The front panel 24B extends gradually downward as it moves forward from the front edge of the bifurcated top panel 24C.

[0024] The nozzle portion 23A of the discharge head 23 is inserted into the window portion 24D. The nozzle portion 23A protrudes forward from the front plate portion 24B through the window portion 24D. The pair of side plate portions 24A of the operating lever 24 laterally sandwich the upper portions of the pair of side surfaces 15B of the support portion 15. The lower portion of the front plate portion 24B is used as a finger hook portion for resting the fingertips.

[0025] The operating lever 24 has a plate portion (not shown) that projects inward in the left-right direction from the pair of side plate portions 24A, and at the lower end thereof, an engagement groove that engages with the shaft portion (not shown) of the discharge head 23. In the above configuration, when the operating lever 24 is swung downward around the rotation shaft 15a, the operating lever 24 pushes the discharge head 23 downward, and the stem 22 moves downward.

[0026] The stopper member 30 has an operation wall 31 arranged opposite the back surface 15A of the support portion 15, a pair of operation side walls 32 connected to both the left and right sides of the operation wall 31 in a generally fan-shaped configuration in side view and arranged opposite each other outside the pair of side surfaces 15B of the support portion 15, and a restricting portion 33 provided at the front end portions (hereinafter referred to as "front end portions" (the opposite side is referred to as "rear end portions")) of the pair of operation side walls 32. The operation wall 31, the pair of operation side walls 32, and the restricting portion 33 are integrally formed.

[0027] The pair of operation side walls 32 have a fan-shaped outer shape when viewed from the left and right, and a shaft hole 32B into which the shaft portion 13 is inserted is formed at the central corner of the fan-shaped outer shape. The pair of operation side walls 32 also have a cutout portion 32A formed by cutting out a portion of the pair of operation side walls 32. A gap is provided between the pair of operation side walls 32 and the operation lever 24 in the vertical direction. This means that the pair of operation side walls 32 do not come into sliding contact with the operation lever 24 when the stopper member 30 is operated.

[0028] The restricting portion 33 is integrally formed between (inside) the front ends of the pair of operation side walls 32. The restricting portion 33 is formed in a substantially semi-cylindrical shape that can abut against the stem 22 from behind. As shown in FIG. 1 and FIG. 5, which will be described later, when the stopper member 30 is in the locked position, the upper end of the restricting portion 33 abuts against the lower surface of the head rear portion 23B of the discharge head 23 from below, and at the same time, the lower end of the restricting portion 33 abuts against the upper surface of the guide tube portion 12 from above, thereby restricting the operation of pushing down the operation lever 24.

[0029] The operation wall 31 is disposed behind the support portion 15. This allows the operation wall 31 to be large, resulting in an easy-to-operate stopper member 30. As shown in FIG. 2 as viewed from the arrow A in FIG. 1, the operation wall 31 is formed with a pair of slits 34 extending parallel to each other from the upper end to the lower end of the operation wall 31. The pair of slits 34 divide the operation wall 31 into approximately three equal parts in the left-right direction.

[0030] The operation wall 31 includes a first portion 31A sandwiched between a pair of slits 34 and a pair of second portions 31B disposed outside the pair of slits 34. The first portion 31A and the pair of second portions 31B are connected at the lower end of the operation wall 31. The pair of slits 34 allow the first portion 31A to be elastically deformable in the front-rear direction independently of the pair of second portions 31B.

[0031] As shown in Fig. 3, a stopper piece 35 extending forward is provided on the front surface of the first portion 31A of the operation wall 31. The stopper piece 35 is formed in a rectangular plate shape in the plan view shown in Fig. 3. The stopper piece 35 has a tapered shape that gradually becomes thinner from the base toward the tip in the side view shown in Fig. 5. This makes the tip of the stopper piece 35 more susceptible to bending and deformation.

[0032] The operation wall 31 is provided with a reinforcing rib 36 that connects the stopper piece 35 and the first portion 31A. The reinforcing rib 36 connects the upward surface of the stopper piece 35 and the front surface of the first portion 31A. The reinforcing rib 36 is formed in a linear shape in the plan view shown in Fig. 3. The reinforcing rib 36 has a triangular shape in the side view shown in Fig. 5.

[0033] The support portion 15 has a through hole 16 that penetrates in the front-rear direction, and an engaging protrusion 17 provided on the opening edge on the rear side of the through hole 16. As shown in Fig. 4 as viewed from the arrow A in Fig. 1, the through hole 16 opens to a rear surface 15A of the support portion 15. Specifically, the through hole 16 has a first opening 16A into which the stopper piece 35 is inserted in the front-rear direction, and a second opening 16B into which the reinforcing rib 36 is inserted in the front-rear direction.

[0034] The second opening 16B has a smaller width in the left-right direction than the first opening 16A. The second opening 16B extends linearly upward from the center of the upper edge of the first opening 16A. A pair of engagement protrusions 17 are provided on both sides of the second opening 16B, on the opening edge on the upper edge side of the first opening 16A. As shown in FIG. 7 , when the stopper member 30 is in the unlocked position, the tip of the stopper piece 35 that has retreated from the through hole 16 engages with the engagement protrusion 17. Note that when the stopper member 30 is in the unlocked position, it is sufficient for the stopper piece 35 to stop at the position of the engagement protrusion 17 of the support portion 15, and therefore the stopper piece 35 and the engagement protrusion 17 do not need to abut (engage) with each other.

[0035] Next, the operation of switching between the locked state and the unlocked state of the dispenser 1 having the above-described configuration will be described.

[0036] 5 shows the locked state of the dispenser 1. At this time, the stopper member 30 is in a state in which the operation wall 31 is closest to or in contact with the back surface 15A of the support part 15. The stopper piece 35 and the reinforcing rib 36 provided on the operation wall 31 are inserted into the through hole 16 of the support part 15 in the front-rear direction.

[0037] The restricting portion 33 of the stopper member 30 abuts against the stem 22 from the rear, and is sandwiched from above and below between the lower surface of the head rear portion 23B and the upper surface of the guide tube portion 12. This prevents the ejection head 23 from being pushed down, thereby restricting the ejection operation of the ejector 1.

[0038] 5 and rotating the stopper member 30 rearward from the locked position to the unlocked position, the operation wall 31 moves rearward away from the back surface 15A, and the stopper piece 35 attempts to come out rearward while being deflected and deformed by the upper edge of the first opening 16A of the through-hole 16, as shown in Fig. 6. Here, the stopper piece 35 is provided on the first portion 31A sandwiched between the pair of slits 34 of the operation wall 31, and can be elastically deformed independently of the second portions 31B on both sides of the first portion 31A, so that the stopper piece 35 can easily come out rearward from the through-hole 16.

[0039] 7, when the stopper member 30 is rotated to the unlocked position, the lower end of the operating wall 31 abuts against the mounting cap 11, restricting further rearward rotation. When the stopper piece 35 comes out of the through-hole 16, the tip of the stopper piece 35 abuts against the rear opening edge of the through-hole 16 and engages with the engaging protrusion 17, restricting forward and backward rotation of the stopper member 30.

[0040] Furthermore, when the stopper member 30 is rotated to the unlocked position, the restricting portion 33 is disengaged rearward from the stem 22, allowing the stem 22 to move up and down. This puts the dispenser 1 into an unlocked state in which the ejection head 23 can be pushed down. Therefore, the content liquid can be ejected by pulling the operating lever 24 to perform the ejection operation.

[0041] In the unlocked state, the stopper piece 35, which has come out of the through hole 16, has its tip abutting against the rear surface 15A of the support part 15 from behind. In addition, an engagement protrusion 17, with which the tip of the stopper piece 35 engages, is disposed near the upper edge of the first opening 16A of the through hole 16. Therefore, when the operating lever 24 is pulled to perform a dispensing operation in the unlocked state, if the stopper member 30 rotates forward and attempts to be pushed back to the locked position, the tip of the stopper piece 35 abuts against the rear surface 15A of the support part 15, thereby restricting the rotation. In addition, when the operating lever 24 is pulled to perform a dispensing operation in the unlocked state, if an upward force is applied to the stopper member 30, the stopper piece 35 engages with the engagement protrusion 17, thereby preventing the stopper piece 35 from coming off.

[0042] Therefore, when the operating lever 24 is pulled to perform the discharge operation in the unlocked state, the stopper member 30 can be prevented from unintentionally rotating to the locked position, making it possible to continue the discharge operation.

[0043] Next, to return the dispenser 1 from the unlocked state to the locked state, the stopper piece 35 must be inserted into the through-hole 16 so that the operation wall 31 approaches the back surface 15A of the support part 15. To do this, as shown in FIG. 8, the reinforcing rib 36 may be pushed forward. This causes the stopper piece 35 and the first portion 31A of the operation wall 31 to bend and deform, and the tip of the stopper piece 35 enters the through-hole 16, allowing the stopper member 30 to rotate from the unlocked position toward the locked position. This allows the dispenser 1 to smoothly return to the locked state (see FIG. 5).

[0044] As described above, according to the dispenser 1 of this embodiment, when the stopper member 30 is rotated rearward from the locked position toward the unlocked position, the stopper piece 35 provided on the stopper member 30 comes out of the through hole 16 formed in the support part 15 and abuts against the opening edge on the rear side of the through hole 16, thereby restricting the forward rotation of the stopper member 30, and therefore, when the operating lever 24 is operated, the stopper member 30 can be prevented from unintentionally returning from the unlocked position to the locked position. Here, the stopper piece 35 is provided in the first part 31A sandwiched between a pair of slits 34 of the operating wall 31 of the stopper member 30, and can elastically deform independently of the second parts 31B on both sides of it in the left-right direction, so that the stopper piece 35 can easily slip out rearward from the through hole 16. Furthermore, when rotating the stopper member 30 forward from the unlocked position toward the locked position, the stopper piece 35 is pushed forward to elastically deform the first part 31A, and the stopper piece 35 is inserted into the through hole 16, thereby allowing the stopper member 30 to rotate forward, and the stopper member 30 can be smoothly returned to the locked position.

[0045] As described above, the dispenser 1 according to this embodiment comprises: an attachment cap 11 to which the container body 2 is attached; a pump mechanism 20 that sucks up the liquid content from the container body 2; a stem 22 that is arranged so as to be movable downward while being biased upward relative to the pump mechanism 20; a discharge head 23 that is connected to the upper end of the stem 22 and that dispenses the liquid content sucked up through the stem 22; an operating lever 24 that presses down the discharge head 23 to drive the pump mechanism 20; a stopper member 30 that is movable between a locked position that restricts the discharge head 23 from being pressed down and an unlocked position that rotates rearward from the locked position and allows the discharge head 23 to be pressed down; and a support portion 15 that rotatably supports the stopper member 30. The support portion 15 has a through hole 16 that penetrates in the front-rear direction and is configured to be movable between the lock position and the unlock position that allows the discharge head 23 to be pressed down. The stopper member 30 includes an operation wall 31 disposed behind the support portion 15, a stopper piece 35 extending forward from the operation wall 31, inserted into the through hole 16 at the locked position, and removed from the through hole 16 at the unlocked position to abut against the rear opening edge of the through hole 16, the operation wall 31 disposed behind the support portion 15, the stopper piece 35 extending forward from the operation wall 31, inserted into the through hole 16 at the locked position, and removed from the through hole 16 at the unlocked position to abut against the rear opening edge of the through hole 16, and a pair of slits 34 formed on both left and right sides of the stopper piece 35 in the operation wall 31, allowing a first portion 31A of the operation wall 31, on which the stopper piece 35 is formed, to be elastically deformable in the front-rear direction independently of second portions 31B on both left and right sides of the first portion 31A. This configuration can improve the operability of the dispenser 1 equipped with the stopper member 30 that switches the operation lever 24 between the locked state and the unlocked state.

[0046] Furthermore, in this embodiment, a reinforcing rib 36 is provided that connects the stopper piece 35 and the first portion 31A. According to this configuration, when the stopper piece 35 is pushed forward, the presence of the reinforcing rib 36 alleviates stress concentration on the base portion of the stopper piece 35, and makes it easier to elastically deform the first portion 31A of the operation wall 31 about the end portions of the pair of slits 34 as axes, thereby making it easier to insert the stopper piece 35 into the through-hole 16.

[0047] The technical scope of the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention. For example, the support portion 15 is provided on the guide tube portion 12, but it may also be provided on the mounting cap 11, or on another component part as long as it can support the stopper member 30 rotatably.

[0048] In addition, it is possible to replace the components in the above-described embodiments with well-known components as appropriate, without departing from the spirit of the present invention. [Explanation of symbols]

[0049] 1 Dispenser 2 Container body 3 Mouth 11 Mounting cap 12 Guide tube 13 Shaft 15 Support part 15a Rotation axis 15A back 15B Side 16 through holes 16A 1st opening 16B 2nd opening 17 Engagement protrusion 20 Pump mechanism 20A cylinder 21 Suction tube 22 Stem 23 Discharge head 23A Nozzle part 23B rear of head 24 Operating lever 24a Engagement hole 24A Side plate part 24B Front plate part 24C Top plate 24D window section 30 Stopper member 31 Operation wall 31A Part 1 31B 2nd part 32 Operation side wall 32A Notch 32B shaft hole 33 Regulatory Department 34 Slit 35 Stopper piece 36 Reinforcing rib O Container axis

Claims

1. an attachment cap to which the container body is attached; a pump mechanism for sucking up the liquid content from the container body; a stem disposed in an upwardly biased state relative to the pump mechanism and movable downward; a discharge head connected to the upper end of the stem and configured to discharge the liquid content drawn up through the stem; an operating lever that pushes down the discharge head to drive the pump mechanism; a stopper member that is movable between a lock position that restricts depression of the ejection head and an unlock position that rotates rearward from the lock position and allows depression of the ejection head; a support portion that rotatably supports the stopper member, The support portion includes a through hole that penetrates in the front-rear direction, The stopper member is an operation wall disposed behind the support portion; a stopper piece extending forward from the operation wall, inserted into the through hole at the locked position, and removed from the through hole at the unlocked position to come into contact with an opening edge on the rear side of the through hole; a pair of slits formed on both left and right sides of the operation wall with the stopper piece sandwiched therebetween, allowing a first portion of the operation wall where the stopper piece is formed to be elastically deformable in the front-rear direction independently of second portions on both left and right sides of the first portion, Dispenser.

2. a reinforcing rib connecting the stopper piece and the first portion; The dispenser of claim 1 .

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