WO2022059476A1

WO2022059476A1 - Trigger-type liquid sprayer

Info

Publication number: WO2022059476A1
Application number: PCT/JP2021/031883
Authority: WO
Inventors: 涼平青山; 博文森若; 千恵坂内
Original assignee: 花王株式会社
Priority date: 2020-09-15
Filing date: 2021-08-31
Publication date: 2022-03-24
Also published as: JP7101734B2; JP2022048500A; CN115968348A; TW202224781A

Abstract

The present invention is a trigger-type liquid sprayer comprising a body having a built-in pump capable of suctioning and pumping a liquid within the container body, an operating lever for actuating the pump by being pulled against the body, and a nozzle for spraying a liquid by actuation of the pump, wherein the operating lever is equipped with a pair of guide parts extending along the pulling direction relative to the main body, and the pair of guide parts are arranged so as to sandwich a portion of the body.

Description

Triggered liquid ejector

The present invention relates to a trigger type liquid ejector.

Conventionally, a trigger type spray container configured to spray liquids such as household detergents, mold removers, hair styling agents, air fresheners and deodorants in the form of mist or foam is known (Japanese Patent Laid-Open No. 2008-). No. 20000572, etc.). A conventional trigger-type spray container includes a container body for containing a liquid and a trigger-type liquid ejector attached to the mouth of the container body. The trigger type liquid ejector is configured to atomize or foam the liquid in the container body from the nozzle by a pump operated by the traction operation of the operating lever.

The present invention has a main body portion having a built-in pump capable of sucking and pumping a liquid in a container main body, an operating lever that operates the pump by being pulled with respect to the main body portion, and a liquid by the operation of the pump. A trigger-type liquid ejector including a nozzle for ejecting a liquid, wherein the operating lever includes a pair of guide portions extending along a pulling direction with respect to the main body portion, and the pair of guide portions are the main body portion. It relates to a trigger type liquid ejector arranged so as to sandwich a part of.

It is a cut-out sectional view of the trigger type liquid ejector which concerns on 1st Embodiment. FIG. 3 is an enlarged cross-sectional view taken along the line AA'of FIG. 1A. It is a notch sectional view which shows the operation lever and the pump which concerns on 1st Embodiment. It is a notch sectional view which shows the state which pulled the operation lever which concerns on 1st Embodiment. It is a figure which shows the trigger type liquid ejector which concerns on 2nd Embodiment. 4 is an enlarged cross-sectional view taken along the line BB'of FIG. 4A. It is a cut-out sectional view which shows the trigger type liquid ejector which concerns on 3rd Embodiment. FIG. 5 is an enlarged cross-sectional view taken along the line CC'of FIG. 5A.

Detailed description of the invention

In the trigger type spray container of JP-A-2008-200572, a load is applied in a direction different from the pulling direction of the operating lever (for example, an oblique direction) due to the pulling method of the user, other external force, etc. There is a risk that the sealing performance between the members and the cylinder will deteriorate, causing liquid leakage from between the members.

Therefore, the present invention relates to a trigger type liquid ejector capable of preventing liquid leakage due to a load applied to the operating lever.

That is, in the present invention, the main body portion having a built-in pump capable of sucking and pumping the liquid in the container main body, the operating lever that operates the pump by being pulled with respect to the main body portion, and the operation of the pump. A trigger-type liquid ejector including a nozzle for ejecting a liquid by means of, the operating lever includes a pair of guide portions extending along a pulling direction with respect to the main body portion, and the pair of guide portions is the said. It relates to a trigger type liquid ejector arranged so as to sandwich a part of the main body.

The trigger type liquid ejector according to the present invention can prevent liquid leakage due to a load applied to the operating lever.

Hereinafter, suitable embodiments for carrying out the present invention will be described with reference to the drawings. It should be noted that the following embodiments do not limit the invention according to each claim, and not all combinations of features described in the embodiments are essential for the means for solving the invention. .. Further, the drawings are schematic views in which emphasis, omission, and ratio adjustment are appropriately performed to show the present invention, and may differ from the actual shape, positional relationship, and ratio.

First, the trigger type liquid ejector 20 according to the first embodiment will be described with reference to FIGS. 1A to 3. As shown in FIG. 1A, the trigger type liquid ejector 20 according to the first embodiment is configured to be mountable on the container body 10 capable of accommodating the liquid, and ejects the liquid in the container body 10 by manual operation by the user. It is possible to make it.

As shown in FIG. 1A, the trigger type liquid ejector 20 is roughly composed of a main body 30 having a built-in pump 40 capable of sucking and pumping liquid in the container main body 10 and a main body 30. An operating lever 26 (trigger) provided on the front side to operate the pump 40 by being pulled with respect to the main body 30, and an operating lever 26 (trigger) provided at the front end of the main body 30 to bring the liquid to the outside by the operation of the pump 40. It is provided with a nozzle 24 for ejecting toward.

In this specification, the direction in which the liquid is ejected from the nozzle 24, which will be described later, is referred to as "forward", and the opposite direction is referred to as "rear". Further, the direction from the container body 10 toward the trigger type liquid ejector 20 (the side opposite to the container body 10 when viewed from the trigger type liquid ejector 20) is defined as "upper", and the opposite direction (trigger type liquid ejection) is set. The container body 10 side when viewed from the vessel 20) will be described as “downward”. However, the vertical direction referred to here is merely a direction determined for convenience of explanation, and is not necessarily the vertical direction in actual usage conditions.

As shown in FIG. 1A, the container body 10 is a container body 10 formed in a bottomed tubular shape having a small-diameter cylindrical mouth tube portion 12 at the upper portion, and is configured to be capable of accommodating a liquid in the internal space thereof. ing. Since various known configurations can be adopted for such a container body 10, detailed description thereof will be omitted.

In the trigger type liquid ejector 20 according to the first embodiment, various known trigger type liquid ejector configurations can be adopted for configurations other than the configuration related to the operation lever 26. The detailed explanation will be omitted.

As shown in FIG. 1A, the main body portion 30 has a mounting cap 22 (mounting portion) configured to be mountable on the mouth cylinder portion 12 of the container main body 10 and above the mounting cap 22 (on the side opposite to the container main body 10). The vertical cylinder portion 34 extending toward the surface and the upper end portion of the vertical cylinder portion 34 (the end opposite to the mounting cap 22) extend forward (in the direction in which the liquid is ejected) and are connected to the nozzle 24. A horizontal cylinder portion 36, a cylindrical holding portion 38 extending forward from the middle portion of the vertical cylinder portion 34, a pump 40 held in the holding portion 38, and a main body portion 30 (vertical cylinder portion 34). A head cover 28 that covers the horizontal cylinder portion 36 and the holding portion 38) is provided. The head cover 28 covers the main body 30 so as to extend to the vicinity of the nozzle 24. Here, the "neighborhood" means a range in which the distance between the tip of the head cover 28 on the ejection direction side and the rear end of the nozzle 24 (the end on the opposite direction to the ejection direction side) is 0 mm to 1 mm. The tip of the head cover 28 on the ejection direction side and the rear end of the nozzle 24 may overlap.

As shown in FIG. 1A, the vertical cylinder portion 34 has a cylindrical neck portion 32 inserted into the upper opening (not shown) of the mounting cap 22 at the lower end. The neck portion 32 has a smaller width (that is, diameter) in the direction intersecting the swing direction of the operating lever 26 than the mounting cap 22. Further, the vertical cylinder portion 34 has a cylindrical intake 35 inside thereof. The lower end of the intake 35 is communicated with a pipe 37 extending in the container body 10, and the upper end thereof is communicated with the rear end of the horizontal cylinder portion 36, whereby the pipe 37, the intake 35 and the horizontal cylinder are communicated with each other. A feeding path from the container body 10 to the nozzle 24 is formed by the portion 36. In the intake 35, a communication hole 35a communicating with the pump chamber 46, which will be described later, is formed, and a suction valve 35b and a discharge valve 35c are arranged on the upstream side and the downstream side of the communication hole 35a, respectively, to operate the pump 40. The liquid can be sucked from the container body 10 into the pump chamber 46 and pumped from the pump chamber 46 to the nozzle 24.

As shown in FIG. 1A, the pump 40 includes a cylindrical cylinder 42 fitted and held in the holding portion 38, and a piston 44 reciprocally housed inside the cylinder 42. The piston 44 is formed to have a smaller diameter than the cylinder 42, whereby a gap is formed between the outer peripheral surface of the piston 44 and the inner peripheral surface of the cylinder 42. An annular seal portion 45 that slidably and liquid-tightly contacts the inner peripheral surface of the cylinder 42 is projected from the rear end portion of the piston 44, and the inside of the cylinder 42 is sealed by the seal portion 45. By stopping, the pump chamber 46 is configured to be formed on the rear side of the seal portion 45. The front end of the piston 44 is engaged with the operating lever 26, and the operating lever 26 is pushed back by the coil spring 47 (the urging means) provided inside the piston 44 (expansion direction of the pump chamber 46). Being urged.

As shown in FIGS. 1A and 1B, the operation lever 26 has a base end portion that can swing to the horizontal cylinder portion 36 so as to extend from the horizontal cylinder portion 36 of the main body portion 30 toward the container main body 10. A pair of guide portions 26B formed so as to project from the lever main body portion 26A toward the vertical cylinder portion 34 so as to sandwich the supported lever main body portion 26A and a part of the main body portion 30 (cylinder 42 in this embodiment). In FIG. 1A, only one guide portion 26B is shown).

As shown in FIG. 1A, the lever main body portion 26A has its upper end portion (base end portion) pivotally attached to the tip end side of the horizontal cylinder portion 36 of the main body portion 30 so as to be swingably attached to the vertical cylinder portion 34 and the holding portion. It is provided so as to hang downward (on the container body 10 side) from the horizontal cylinder portion 36 so as to face the 38 and the mounting cap 22. The rear surface of the lever main body 26A is engaged with the front end of the piston 44 as described above, and is configured to reciprocate the piston 44 by the reciprocating movement of the lever main body 26A.

As shown in FIG. 1A, the pair of guide portions 26B project from the rear surface of the lever main body portion 26A toward the vertical cylinder portion 34 in a substantially triangular shape. Specifically, as shown in FIG. 1B, one guide portion 26B extends rearward (towing direction) from one edge portion in the width direction of the lever main body portion 26A (vertical direction on the paper surface in FIG. 1B). The other guide portion 26B extends from the other edge portion in the width direction toward the rear (traction direction). The shape of the pair of guide portions 26B is not limited to the substantially triangular shape shown in the figure, and may be, for example, a circular shape, an elliptical shape, a polygonal shape, or the like, as long as the shape does not hinder the pulling operation of the lever main body portion 26A. Various arbitrary shapes can be adopted. In the present embodiment, the pair of guide portions 26B have the same shape, but may have different shapes from each other. For example, regarding the combination of the shapes of the pair of guide portions 26B, one guide portion 26B may have a substantially triangular shape and the other guide portion 26B may have a circular shape, and the pair of guides may be a combination of various shapes. It may be part 26B.

As shown in FIG. 2, the pair of guide portions 26B project to a position where the cylinder 42 is sandwiched at a non-operating position (initial position urged by the coil spring 47) in which the operating lever 26 is separated from the vertical cylinder portion 34. Has a directional length. Specifically, the tip of each guide portion 26B in the protruding direction is located at a position where it overlaps with the cylinder 42. From the viewpoint of stably guiding the operating lever 26, it is preferable that the pair of guide portions 26B have a length in the protruding direction from the rear end portion of the lever main body portion 26A to the vertical cylinder portion 34. Further, in the present embodiment, the length of the pair of guide portions 26B in the protruding direction from the rear end portion of the lever main body portion 26A to the vertical cylinder portion 34 is the same, but the lengths may be different.

As shown in FIG. 1B, each guide portion 26B is arranged so as to be in contact with or separated from the peripheral surface of the cylinder 42 with a slight gap. Specifically, the distance (gap) between each guide portion 26B and the peripheral surface of the cylinder 42 is preferably 0 mm or more, more preferably 1 mm or more, and 2 mm from the viewpoint of operability and usability. The above is more preferable, and it is preferably 7 mm or less from the viewpoint of suppressing poor traction of the operating lever 26 to prevent liquid leakage and from the viewpoint of stably guiding the operating lever 26 by the peripheral surface of the cylinder 42. It is preferably 5 mm or less, more preferably 2 mm or less, and even more preferably 2 mm or less. When each guide portion 26B comes into contact with the peripheral surface of the cylinder 42, the contact pressure of each guide portion 26B with respect to the peripheral surface of the cylinder 42 is set within a range that does not hinder the traction operation of the lever main body portion 26A. Is preferable.

The pair of guide portions 26B are configured to be located between the head cover 28 and the cylinder 42, respectively. Specifically, a gap is formed between the head cover 28 and the cylinder 42, and the pair of guide portions 26B are configured to swing in the gap. More specifically, the width in the direction in which one guide portion 26B and the other guide portion 26B are separated from each other is formed to be slightly smaller than the width in the direction orthogonal to the ejection direction of the head cover 28, and is larger than the diameter of the cylinder 42. It is formed slightly larger.

The tip of the pair of guide portions 26B in the protruding direction is covered with the head cover 28 at the non-operating position. Here, "covered" means that the tips of the pair of guide portions 26B in the protruding direction are located inside the head cover 28 in the non-operating position. Specifically, the amount of protrusion of the pair of guide portions 26B to the head cover 28 is preferably 1 mm or more, more preferably 3 mm or more, and further preferably 5 mm or more. Further, it is preferably 30 mm or less, more preferably 20 mm or less, and further preferably 15 mm or less. Here, the "protrusion amount" is the protrusion direction of the pair of guide portions 26B when the end portion of the head cover 28 on the ejection direction side is used as a reference in the portion where the pair of guide portions 26B is covered by the head cover 28. The amount of penetration to the side. Specifically, the "protrusion amount" refers to a straight line distance L from the tip T on the protrusion direction side of the guide portion 26B to the intersection X between the horizontal line passing through the tip T and the head cover 28 (see FIG. 2).

As shown in FIG. 1B, each guide portion 26B is arranged so as to be in contact with or separated from the inner surface of the head cover 28 with a slight gap. Specifically, the distance (gap) between each guide portion 26B and the inner surface of the head cover 28 is preferably 0 mm or more, preferably 1 mm or more, from the viewpoint of stably guiding the operation lever 26 by the inner surface of the head cover 28. It is more preferably 2 mm or more, and further preferably 7 mm or less, more preferably 5 mm or less, from the viewpoint of suppressing poor traction of the operating lever 26 and preventing liquid leakage. It is more preferably 2 mm or less. When each guide portion 26B comes into contact with the inner surface of the head cover 28, it is preferable that the contact pressure of each guide portion 26B with respect to the inner surface of the head cover 28 is set within a range that does not hinder the traction operation of the lever main body portion 26A. ..

When an external force is applied in a direction different from the pulling direction of the operating lever 26 (for example, an oblique direction), the pair of guide portions 26B abut on the peripheral surface of the cylinder 42 and / or the inner surface of the head cover 28, and the operating lever 26 abuts. It has the rigidity that can correct the traction direction of the cylinder to the correct traction direction. Such rigidity can be realized by adjusting the material, thickness, and the like of the pair of guide portions 26B. For example, the pair of guide portions 26B are formed of metal, wood, synthetic resin, or the like. As the synthetic resin, for example, PP (polypropylene), PE (polyethylene) and the like can be preferably used, but the synthetic resin is not limited thereto. The guide portion 26B is not limited to the configuration provided integrally with the lever main body portion 26A, and may be a separate member that can be retrofitted to the lever main body portion 26A.

As described above, in the pair of guide portions 26B, as shown in FIG. 2, the tip of the pair of guide portions 26B on the protruding direction side overlaps with the tip of the cylinder 42 on the ejection direction side at the non-operating position. There is. Further, the pair of guide portions 26B swing while sandwiching the cylinder 42 by the traction operation of the operation lever 26, and as shown in FIG. 3, the operating position of the operation lever 26 (the position where the operation lever 26 is towed. The traction limit). Position), the tip of the pair of guide portions 26B in the protruding direction is located behind the cylinder 42 with respect to the position in the non-operating position. That is, the range of the pair of guide portions 26B sandwiching the cylinder 42 is larger than the range in the non-operating position. As a result, it becomes possible to guide the traction of the operating lever 26 more stably, so that the sealing property between the piston 44 of the pump 40 and the cylinder 42 can be maintained even during the ejection of the liquid, and the liquid leaks. Can be prevented.

The trigger type liquid ejector 20 according to the first embodiment is provided with the above configuration, and by pulling the operation lever 26 so as to approach the main body portion 30 and causing the piston 44 to enter the cylinder 42, the pump chamber is provided. The liquid in the 46 is pressurized, and the suction valve 35b is pressed against the valve seat by the pressing force to maintain the closed state, while the discharge valve 35c is separated from the valve seat and displaced to the open state, thereby causing the inside of the pump chamber 46 to be in the open state. It is possible to inject the liquid from the nozzle 24 to the outside via the feeding path.

Further, in the trigger type liquid ejector 20 according to the first embodiment, when the operating lever 26 is released after injecting the liquid, the piston 44 and the operating lever 26 are pushed back forward by the urging force of the coil spring 47, whereby the pump is pumped. The inside of the chamber 46 becomes a negative pressure, and the suction valve 35b is separated from the valve seat and displaced to the open state by the negative pressure, and the discharge valve 35c is pressed against the valve seat to close the liquid in the container body 10. Can flow into the pump chamber 46 through the pipe 37. By repeating such pulling and releasing of the operating lever 26, the liquid in the container body 10 can be continuously ejected from the nozzle 24.

As described above, in the trigger type liquid ejector 20 according to the first embodiment, the operation lever 26 includes a pair of guide portions 26B extending along the pulling direction with respect to the main body portion 30, and the pair of guide portions 26B. , Is arranged so as to sandwich a part (cylinder 42) of the main body portion 30.

According to the trigger type liquid ejector 20 according to the first embodiment having such a configuration, when the operating lever 26 is towed, a force is applied in a direction different from the towing direction of the operating lever 26 (for example, an oblique direction). Even if this is the case, the guide portion 26B can guide the towing of the operating lever 26, so that it is possible to prevent the operating lever 26 from being towed in an oblique direction. As a result, it is possible to maintain the sealing property between the piston 44 of the pump 40 and the cylinder 42, and thus it is possible to prevent liquid leakage. Further, it is possible to prevent damage to the operation lever 26, the pump 40, and the like. Further, even if a force is applied in a direction different from the traction direction (for example, in the lateral direction) during non-operation such as when the product is transported or moved after purchase, it is possible to maintain the sealing property between the piston 44 and the cylinder 42. Therefore, it becomes possible to prevent liquid leakage.

Further, in the trigger type liquid ejector 20 according to the first embodiment, the length of the pair of guide portions 26B in the protruding direction to the position where the cylinder 42 is sandwiched at the non-operating position where the operating lever 26 is separated from the vertical cylinder portion 34. It is configured to have a cylinder. According to such a configuration, it is possible to guide the traction of the operation lever 26 from the start of traction of the operation lever 26, so that the guide of the operation lever 26 can be made more stable, and further. It is possible to prevent liquid leakage. Further, even if a force is applied in a direction different from the traction direction (for example, in the lateral direction) during non-operation such as when the product is transported or moved after purchase, it is possible to maintain the sealing property between the piston 44 and the cylinder 42. Therefore, it becomes possible to further prevent liquid leakage.

Further, the trigger type liquid ejector 20 according to the first embodiment further includes a head cover 28 that covers the main body portion 30, and the pair of guide portions 26B are configured to be located between the head cover 28 and the cylinder 42, respectively. ing. According to such a configuration, since the movement path of each guide portion 26B can be defined by the head cover 28 and the cylinder 42, the guide by each guide portion 26B can be further stabilized. Further, even if a force is applied in a direction different from the traction direction (for example, in the lateral direction) during non-operation such as when the product is transported or moved after purchase, it is possible to maintain the sealing property between the piston 44 and the cylinder 42. Therefore, it becomes possible to further prevent liquid leakage.

[Second Embodiment]
Next, the trigger type liquid ejector 20'according to the second embodiment of the present invention will be described with reference to FIGS. 4A and 4B. In the trigger type liquid ejector 20 ′ according to the second embodiment, the same configuration as the trigger type liquid ejector 20 according to the first embodiment can be adopted for the configurations other than the head cover 28 ′, so that they are the same. The description thereof will be omitted by using the reference numeral of.

In the trigger type liquid ejector 20 ′ according to the second embodiment, as shown in FIGS. 4A and 4B, an auxiliary guide portion 29 ′ that guides each guide portion 26B is provided between each guide portion 26B and the cylinder 42. It is provided.

In the trigger type liquid ejector 20 ′ according to the second embodiment, the auxiliary guide portion 29 ′ is provided on the head cover 28 ′. Specifically, the head cover 28'according to the second embodiment has a double wall structure having an outer wall covering the main body portion 30 and a pair of inner walls provided apart from each other inside the outer wall. , The pair of inner walls are configured to function as an auxiliary guide portion 29'. The pair of auxiliary guide portions 29'(inner wall) are arranged so as to face each other and are integrated with the outer wall of the head cover 28'. However, the pair of auxiliary guide portions 29'(inner wall) is not limited to the configuration provided integrally with the outer wall of the head cover 28', and may be a separate member that can be retrofitted to the outer wall.

A gap is formed between the outer wall of the head cover 28'and each auxiliary guide portion 29'where each guide portion 26B can be placed. That is, the outer wall of the head cover 28'and each auxiliary guide portion 29'are arranged so as to sandwich each guide portion 26B. Specifically, the width in the direction orthogonal to the ejection direction of the outer wall of the head cover 28'is formed to be slightly larger than the width in the direction in which the pair of guide portions 26B are separated from each other, and the pair of auxiliary guide portions 29'are separated from each other. The width in the direction is formed to be slightly smaller than the width in the direction in which the pair of guide portions 26B are separated from each other.

Further, the pair of auxiliary guide portions 29'(inner wall) includes at least a part of the pair of guide portions 26B at the non-operating position and the operating position of the operating lever 26, and the outer wall of the head cover 28'and each auxiliary guide portion 29'(. It has a size that can be positioned between it and the inner wall. As a result, the movement path of each guide portion 26B can be defined by the outer wall of the head cover 28'and each auxiliary guide portion 29', so that the guide by each guide portion 26B can be further stabilized.

Each guide portion 26B is arranged between the outer wall of the head cover 28'and each auxiliary guide portion 29'so as to be in contact with or separated from the outer wall and each auxiliary guide portion 29'with a slight gap. Specifically, the distance (gap) between each guide portion 26B and the outer wall of the head cover 28'and / or each auxiliary guide portion 29'should be 0 mm or more from the viewpoint of stably guiding the operation lever 26. It is preferably 1 mm or more, more preferably 2 mm or more, and preferably 7 mm or less, preferably 5 mm or less, from the viewpoint of suppressing poor traction of the operating lever 26 and preventing liquid leakage. It is more preferably present, and further preferably 2 mm or less. When each guide portion 26B comes into contact with the outer wall of the head cover 28'and / or each auxiliary guide portion 29', the contact pressure of each guide portion 26B with respect to these does not hinder the traction operation of the lever main body portion 26A. It is preferable to set to.

As described above, the trigger type liquid ejector 20'according to the second embodiment has an auxiliary guide portion 29'that guides each guide portion 26B so as to sandwich each guide portion 26B with the outer wall of the head cover 28'. Is provided. According to the trigger type liquid ejector 20'according to the second embodiment as described above, in addition to the advantages of the trigger type liquid ejector 20 according to the first embodiment described above, each guide portion 26B is provided by each auxiliary guide portion 29'. It has the further advantage that the guide can be made more stable. Further, since the operation lever 26 can be designed regardless of the size of the cylinder 42, it is possible to improve the degree of freedom in designing the head cover 28'and the operation lever 26.

[Third Embodiment]
Next, the trigger type liquid ejector 20 ″ according to the third embodiment of the present invention will be described with reference to FIGS. 5A and 5B. In the trigger type liquid ejector 20 ″ according to the third embodiment, the same configuration as the trigger type liquid ejector 20 according to the first embodiment can be adopted except for the cylinder 42 ″. , The description thereof will be omitted by using the same reference numerals.

As shown in FIGS. 5A and 5B, the trigger type liquid ejector according to the third embodiment is provided with an auxiliary guide portion 29 ″ that guides each guide portion 26B between each guide portion 26B and the head cover 28. Has been done.

In the trigger type liquid ejector 20 ″ according to the third embodiment, the auxiliary guide portion 29 ″ is provided in the cylinder 42 ″. Specifically, the cylinder 42 ″ according to the third embodiment has a double wall structure having an inner wall for accommodating the piston 44 and a pair of outer walls provided apart from the outer wall of the inner wall. The pair of outer walls is configured to function as an auxiliary guide portion 29 ″. The pair of auxiliary guide portions 29 ″ (outer walls) are arranged so as to face each other and are integrated with the inner wall of the cylinder 42 ″, respectively. However, the pair of auxiliary guide portions 29 ″ (outer wall) is not limited to the configuration provided integrally with the inner wall of the cylinder 42 ″, and may be a separate member that can be retrofitted to the inner wall.

A gap is formed between the inner wall of the cylinder 42 ″ and each auxiliary guide portion 29 ″ (outer wall) in which each guide portion 26B can be placed. That is, the inner wall of the cylinder 42 ″ and the auxiliary guide portions 29 ″ are arranged so as to sandwich the guide portions 26B. Specifically, the width of the pair of auxiliary guide portions 29 ″ (outer wall) in the separating direction is formed to be slightly larger than the width of the pair of guide portions 26B in the separating direction, and the inner wall of the cylinder 42 ″ is formed. The diameter is formed to be slightly smaller than the width of the pair of guide portions 26B in the separating direction.

Further, in the pair of auxiliary guide portions 29 ″, at least a part of the pair of guide portions 26B at the non-operating position and the operating position of the operating lever 26, the inner wall of the cylinder 42 ″ and each auxiliary guide portion 29 ″ ( It has a size that can be positioned between it and the outer wall). As a result, the movement path of each guide portion 26B can be defined by the inner wall of the cylinder 42 ″ and each auxiliary guide portion 29 ″, so that the guide by each guide portion 26B can be further stabilized. Become.

Each guide portion 26B is arranged between the inner wall of the cylinder 42 ″ and each auxiliary guide portion 29 ″ so as to be in contact with or separated from the inner wall and each auxiliary guide portion 29 ″ with a slight gap. There is. Specifically, the distance (gap) between each guide portion 26B and the inner wall of the cylinder 42 ″ and / or each auxiliary guide portion 29 ″ is 0 mm or more from the viewpoint of stably guiding the operation lever 26. It is preferably 1 mm or more, more preferably 2 mm or more, and preferably 7 mm or less from the viewpoint of suppressing poor traction of the operating lever 26 and preventing liquid leakage. It is more preferably 2 mm or less, and further preferably 2 mm or less. When each guide portion 26B comes into contact with the inner wall of the cylinder 42 ″ and / or each auxiliary guide portion 29 ″, the contact pressure of each guide portion 26B with respect to these impedes the traction operation of the lever body portion 26A. It is preferable to set it in a range that does not.

As described above, the trigger type liquid ejector 20 ″ according to the third embodiment has an auxiliary guide portion that guides each guide portion 26B so as to sandwich each guide portion 26B with the inner wall of the cylinder 42 ″. 29 ″ is provided. According to the trigger type liquid ejector 20 ″ according to the third embodiment, in addition to the advantages of the trigger type liquid ejector 20 according to the first embodiment described above, each guide is provided by each auxiliary guide unit 29 ″. It has a further advantage that the guide by the portion 26B can be further stabilized.

Although the preferred embodiments of the present invention have been exemplified above, the technical scope of the present invention is not limited to the scope described in the above-described embodiments. Various changes or improvements can be made to each of the above embodiments.

For example, in the second and third embodiments described above, the auxiliary guide portions 29 ″ and 29 ″ have been described as being provided on the head cover 28 ′ or the cylinder 42 ″, but the head cover 28 is not limited thereto. It may be provided as a single member independent of the ′ and the cylinder 42 ′ ′.

It is clear from the description of the claims that the above-mentioned modifications are included in the scope of the present invention.

With respect to the embodiments described above, the present invention further discloses the following trigger type liquid ejector.
<1>
A main body with a built-in pump capable of sucking and pumping liquid in the container body, an operating lever that operates the pump by being pulled with respect to the main body, and a nozzle that ejects the liquid by operating the pump. A trigger-type liquid ejector including, the operation lever includes a pair of guide portions extending along a pulling direction with respect to the main body portion, and the pair of guide portions includes a part of the main body portion. Trigger type liquid ejector arranged so as to sandwich.

<2>
The main body portion includes a mounting portion configured to be mountable on the container main body, a vertical cylinder portion extending from the mounting portion toward the side opposite to the container main body, and the mounting portion of the vertical cylinder portion. The pump is provided with a horizontal cylinder extending from the opposite end toward the ejection direction of the liquid, and the pump is a cylindrical cylinder and a piston that reciprocates in the cylinder by the reciprocating movement of the operating lever. The operation lever is provided with a lever main body portion whose base end portion is swingably supported by the horizontal cylinder portion so as to extend from the horizontal cylinder portion of the main body portion toward the container main body side. The trigger type liquid ejector according to <1>, wherein the pair of guide portions project from the lever main body portion toward the vertical cylinder portion so as to sandwich the cylinder.

<3>
The trigger type liquid according to <1> or <2>, wherein the pair of guide portions has a length in a protruding direction to a position where the cylinder is sandwiched at a non-operating position where the operating lever is separated from the vertical cylinder portion. Ejector.

<4>
The trigger type liquid ejector according to any one of <1> to <3>, wherein the tip of the pair of guide portions in the protruding direction is located at a position where the tip of the guide portion overlaps with the cylinder.

<5>
The trigger type liquid ejector according to any one of <1> to <4>, wherein the pair of guide portions has a length in a protruding direction from the rear end portion of the lever main body portion to the vertical cylinder portion.

<6>
The item according to any one of <1> to <5>, further comprising a head cover that covers the main body portion, and the pair of guide portions are configured to be located between the head cover and the cylinder. Trigger type liquid ejector.

<7>
The trigger type liquid ejector according to any one of <1> to <6>, wherein the tip of the pair of guide portions in the protruding direction is covered with the head cover at a non-operating position.

<8>
The trigger type liquid ejector according to any one of <1> to <7>, wherein the head cover covers the vertical cylinder portion, the horizontal cylinder portion, and the holding portion.

<9>
The trigger type liquid ejector according to claim <1> to <8>, wherein the pair of guide portions are arranged so as to be in contact with or separated from the peripheral surface of the cylinder with a gap.

<10>
The trigger type liquid ejector according to any one of <1> to <9>, wherein the gap between each guide portion and the peripheral surface of the cylinder is 0 mm or more and 7 mm or less.

<11>
The trigger type liquid ejection according to any one of <1> to <10>, wherein a gap is formed between the head cover and the cylinder, and the pair of guide portions can swing in the gap. vessel.

<12>
The width in the direction in which the one guide portion and the other guide portion are separated from each other is formed to be slightly smaller than the width in the direction orthogonal to the ejection direction of the head cover and slightly larger than the diameter of the cylinder. The trigger type liquid ejector according to any one of <1> to <11>.

<13>
The trigger type liquid ejector according to any one of <1> to <12>, wherein each of the guide portions is arranged so as to be in contact with or separated from the inner surface of the head cover with a gap.

<14>
The trigger type liquid ejector according to any one of <1> to <13>, wherein the gap between each guide portion and the inner surface of the head cover is 0 mm or more and 7 mm or less.

<15>
The piston is engaged with the operating lever and further provided with an internal urging means.
The trigger type liquid ejector according to any one of <1> to <1> to <14>, wherein the urging means is urging the operating lever in a direction of returning it to a non-operating position.

<16>
Further equipped with a nozzle for ejecting the liquid to the outside by the operation of the pump,
The trigger type liquid ejector according to any one of <1> to <15>, wherein the head cover covers the main body portion so as to extend to the vicinity of the nozzle.

<17>
The trigger type liquid ejector according to any one of <1> to <16>, which includes an auxiliary guide portion for guiding the pair of guide portions.

<18>
The auxiliary guide portion is provided on the head cover, and the head cover has a double wall structure having an outer wall covering the main body portion and a pair of inner walls provided apart from each other inside the outer wall. The trigger type liquid ejector according to any one of <1> to <17>, wherein the pair of inner walls are configured to function as the auxiliary guide portion.

<19>
The trigger type liquid ejector according to any one of <1> to <18>, wherein the pair of inner walls are arranged so as to face each other and are integrated with the outer wall of the head cover.

<20>
A gap is formed between the outer wall of the head cover and the auxiliary guide portion so that the guide portions can be arranged, and the outer wall of the head cover and the auxiliary guide portion sandwich the guide portions. The trigger type liquid ejector according to any one of <1> to <19>, which is arranged.

<21>
The pair of inner walls has a size that allows at least a part of the pair of guide portions to be positioned between the outer wall and the inner wall of the head cover at the non-operating position and the operating position of the operating lever. The trigger type liquid ejector according to any one of <1> to <20>.

<22>
Each of the guide portions is arranged between the outer wall of the head cover and the auxiliary guide portions so as to be in contact with or separated from the outer wall and the auxiliary guide portions with a gap. 21> The trigger type liquid ejector according to any one item.

<23>
The trigger type liquid ejector according to any one of <1> to <22>, wherein the gap between each guide portion and the outer wall of the head cover and / or each auxiliary guide portion is 0 mm or more and 7 mm or less. ..

<24>
The auxiliary guide portion is provided in the cylinder, and the cylinder has a double wall structure having an inner wall for accommodating the piston and a pair of outer walls provided apart from the outer side of the inner wall. The trigger type liquid ejector according to any one of <1> to <23>, wherein the pair of outer walls are configured to function as the auxiliary guide portion.

<25>
A gap is formed between the inner wall of the cylinder and the outer wall so that the guide portions can be arranged, and the inner wall of the cylinder and the auxiliary guide portions sandwich the guide portions. The trigger type liquid ejector according to any one of <1> to <24> which is arranged.

<26>
The pair of auxiliary guide portions has a size capable of positioning at least a part of the pair of guide portions between the inner wall and the outer wall of the cylinder at the non-operating position and the operating position of the operating lever. The trigger type liquid ejector according to any one of <1> to <25> having a cylinder.

<27>
Each of the guide portions is arranged between the inner wall of the cylinder and the auxiliary guide portions so as to be in contact with or separated from the inner wall and the auxiliary guide portions with a gap. 26> The trigger type liquid ejector according to any one item.

<28>
The trigger type liquid ejector according to any one of <1> to <27>, wherein the gap between each guide portion and the inner wall of the cylinder and / or each auxiliary guide portion is 0 mm or more and 7 mm or less. ..

<29>
The trigger type liquid ejector according to any one of <1> to <28>, wherein the pair of guide portions project from the rear surface of the lever main body portion toward the vertical cylinder portion in a substantially triangular shape.

<30>
The trigger type liquid ejector according to any one of <1> to <29>, wherein the pair of guide portions is formed of metal, wood, synthetic resin or the like.

10: Container body 12: Mouth cylinder 20, 20', 20': Trigger type liquid ejector 22: Mounting cap 24: Nozzle 26: Operation lever 26A: Lever body 26B: Guide 28, 28': Head cover 29 ´, 29 ´ ： Auxiliary guide part 30 ： Main body part 32 ： Neck part 34 ： Vertical cylinder part 35 ： Intake 35a ： Communication hole 35b ： Suction valve 35c ： Discharge valve 36 ： Horizontal cylinder part 37 ： Pipe 38 ： Holding part 40 : Pump 42, 42': Cylinder 44: Piston 45: Seal 46: Pump chamber 47: Coil spring

Claims

A main body with a built-in pump capable of sucking and pumping liquid in the container body, an operating lever that operates the pump by being pulled with respect to the main body, and a nozzle that ejects the liquid by operating the pump. It is a trigger type liquid ejector equipped with
The operating lever includes a pair of guide portions extending along a pulling direction with respect to the main body portion.
The pair of guide portions are trigger type liquid ejectors arranged so as to sandwich a part of the main body portion.
The main body is
A mounting portion configured to be mounted on the container body,
A vertical cylinder portion extending from the mounting portion toward the side opposite to the container body, and a vertical cylinder portion.
A horizontal cylinder portion extending from an end portion of the vertical cylinder portion opposite to the mounting portion in the direction in which the liquid is ejected is provided.
The pump includes a cylindrical cylinder and a piston that reciprocates in the cylinder by the reciprocating movement of the operating lever.
The operating lever includes a lever main body portion whose base end portion is swingably supported by the horizontal cylinder portion so as to extend from the horizontal cylinder portion of the main body portion toward the container main body side.
The trigger type liquid ejector according to claim 1, wherein the pair of guide portions are formed so as to project from the lever main body portion toward the vertical cylinder portion so as to sandwich the cylinder.
The trigger type liquid ejector according to claim 2, wherein the pair of guide portions has a length in a protruding direction reaching a position where the cylinder is sandwiched at a non-operating position where the operating lever is separated from the vertical cylinder portion.
A head cover that covers the main body is further provided.
The trigger type liquid ejector according to claim 2 or 3, wherein the pair of guide portions are configured to be located between the head cover and the cylinder, respectively.
The trigger type liquid ejector according to claim 4, wherein the tips of the pair of guide portions in the protruding direction are covered with the head cover in a non-operating position.
The trigger type liquid ejector according to any one of claims 2 to 5, wherein the pair of guide portions are arranged so as to be in contact with or separated from the peripheral surface of the cylinder with a gap.
The trigger type liquid ejector according to claim 6, wherein the gap between the pair of guide portions and the peripheral surface of the cylinder is 0 mm or more and 7 mm or less.
The trigger type liquid ejector according to claim 4, wherein the pair of guide portions are arranged so as to be in contact with or separated from the head cover with a gap.
The trigger type liquid ejector according to claim 8, wherein the gap between the pair of guide portions and the head cover is 0 mm or more and 7 mm or less.
The piston is engaged with the operating lever and further provided with an internal urging means.
The trigger-type liquid ejector according to any one of claims 2 to 9, wherein the urging means is urging the operating lever in a direction of returning it to a non-operating position.
Further equipped with a nozzle for ejecting the liquid to the outside by the operation of the pump,
The trigger type liquid ejector according to any one of claims 4 to 10, wherein the head cover covers the main body portion so as to extend to the vicinity of the nozzle.
The trigger type liquid ejector according to any one of claims 1 to 11, further comprising an auxiliary guide portion for guiding the pair of guide portions.