JP2024017158A - Discharge container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a discharge container that gives a comfortable fit feeling to a finger regardless of the size of the finger.

SOLUTION: A discharge device includes: a cylinder to which a content liquid inside a container body is supplied; a piston which is fitted into the cylinder so as to move along a central axis of the cylinder; a discharge head in which a discharge hole is formed; and a lever 15 which is rotatably supported around a rotary axis L. The lever 15 includes: a main plate part 17 which has a pressing surface 16 against which a finger is pressed when the lever is rotated around the rotary axis in a direction to push the piston into the cylinder; and a pair of side plate parts 18 which protrude from the main plate part toward an opposite side of the pressing surface. The main plate part has a rectangular shape extending in one direction perpendicular to the rotary axis when viewed from a front of the pressing surface. A part including the pressing surface out of the main plate part is an elastic deformation part 19 formed a thinner wall than a side plate part. A plurality of slits 20 extending along the rotary axis are formed in the elastic deformation part at an interval in the one direction.

SELECTED DRAWING: Figure 4

COPYRIGHT: (C)2024,JPO&INPIT

Description

The present invention relates to a dispensing device.

Conventionally, for example, as shown in Patent Documents 1 and 2 below, a cylinder to which the liquid content in a container body is supplied, a piston fitted in the cylinder so as to be movable along the central axis of the cylinder, and a discharge discharge A discharge head in which a hole is formed and a lever supported to be rotatable about a rotation axis, the piston moves inside the cylinder along the central axis of the cylinder as the lever rotates about the rotation axis, When the piston is pushed into the cylinder, the liquid inside the cylinder is discharged from the discharge hole, and when the piston returns to the outside of the cylinder, the liquid inside the container body is supplied into the cylinder. Dispensers are known.
As a lever, for example, as shown in Patent Document 3 below, unevenness is provided on the pressing surface against which a finger is pressed when the piston is rotated around the rotation axis in the direction of pushing the piston into the cylinder, A configuration is known in which, for example, operability is improved by providing a comfortable fit to the fingers.

Japanese Patent Application Publication No. 2017-064634 JP 2018-104055 Publication JP2009-240982A

However, it is not possible to design unevenness that can provide a comfortable fit for all finger sizes, and it is conceivable that some finger sizes may feel uncomfortable.

The present invention provides a dispensing device that can provide a comfortable fit for fingers regardless of the size of the fingers.

A discharge device according to one aspect of the present invention includes a cylinder to which the liquid inside a container body is supplied, a piston fitted in the cylinder so as to be movable along the central axis of the cylinder, and a discharge hole. and a lever rotatably supported around a rotation axis, and as the lever rotates around the rotation axis, the piston moves within the cylinder along the central axis of the cylinder. When the piston is pushed into the cylinder, the liquid inside the cylinder is discharged from the discharge hole, and when the piston returns to the outside of the cylinder, the liquid inside the container body is discharged. Content liquid is supplied into the cylinder, and the lever has a pressing surface against which a finger is pressed when the lever is rotated about the rotation axis in a direction to push the piston into the cylinder. and a pair of side plate portions protruding from the main plate portion toward the opposite side of the pressing surface, the main plate portion extending in one direction perpendicular to the rotation axis when viewed from the front of the pressing surface. The main plate part has an elongated rectangular shape, and the part of the main plate part where the pressing surface is located is an elastically deformable part formed thinner than the side plate part, and the elastic deformable part extends along the axis of rotation. A plurality of slits are formed at intervals in the one direction.

The part of the main plate part where the pressing surface is located is an elastically deformable part formed thinner than the side plate part, and the elastically deformable part has a plurality of slits extending along the axis of rotation at intervals in the one direction. Since the finger is pressed against the pressing surface and the lever is rotated around the axis of rotation in the direction of pushing the piston into the cylinder, the pressing surface is shaped like the external shape of the finger. It can be elastically deformed to suit the user's finger size, and can provide a comfortable fit for the fingers, regardless of the size of the fingers.

The elastic deformation portion may be formed integrally with the side plate portion.

Since the elastic deformation part is formed integrally with the side plate part, the lever can be formed more easily than, for example, when the side plate part is injection molded using the elastic deformation part as an insert product.

The pressing surface may be provided with a cover plate that is elastically deformable and made of a softer material than the material forming the main plate portion, and that closes the plurality of slits.

The pressing surface is provided with a cover plate that is made of a material that is softer than the material that forms the main plate and is elastically deformable and that closes the multiple slits, so when you press your finger against the pressing surface, you can feel the touch. It is soft and prevents the fingers from being squeezed into the slits, ensuring a comfortable fit for the fingers.

The lever protrudes from the main plate portion toward the opposite side of the pressing surface, and the lever includes a pair of side plate portions that extend opposite ends of the rotation axis along the one direction to each other in a direction along the rotation axis. an end plate portion connected to the end plate portion, the end plate portion is formed thicker than the elastic deformation portion, and an end portion of the cover plate on the opposite side of the rotation axis along the one direction is connected to the end plate portion. It may be fixed to the part.

Since the end of the cover plate opposite to the rotational axis along the one direction is fixed to the end plate portion that is thicker than the elastic deformation portion, the cover plate can be firmly fixed to the lever. .

According to the present invention, it is possible to provide a comfortable fit to the fingers regardless of the size of the fingers.

It is a side view of the ejector shown as one embodiment. FIG. 2 is a diagram showing a state in which a finger is pressed against a pressing surface in FIG. 1; It is a front view of the lever shown as one embodiment. 4 is a sectional view taken along the line IV-IV in FIG. 3. FIG. 4 is a sectional view taken along the line VV in FIG. 3. FIG.

Embodiments according to the present invention will be described below with reference to the drawings.
As shown in FIG. 1, the discharger 1 includes a cylinder 11 to which the liquid inside the container body W is supplied, and a piston 12 fitted into the cylinder 11 so as to be movable along the central axis O of the cylinder 11. , a discharge head 14 in which a discharge hole 13 is formed, and a lever 15 rotatably supported around a rotation axis L.

As the lever 15 rotates around the rotational axis L, the piston 12 moves inside the cylinder 11 along the central axis O of the cylinder 11, and when the piston 12 is pushed into the cylinder 11, the contents inside the cylinder 11 When the liquid is discharged from the discharge hole 13 and the piston 12 moves back toward the outside of the cylinder 11, the liquid inside the container body W is supplied into the cylinder 11.

In the illustrated example, the ejector 1 is a trigger-type liquid ejector that ejects the liquid content from the ejection hole 13 in the form of mist.
The cylinder 11 and the piston 12 are provided laterally, and the central axis O of the cylinder 11 extends in the front-rear direction. The piston 12 is fitted into the cylinder 11 so as to be movable in the front and rear directions. The cylinder 11 is provided at the rear of the rotation axis L.
The ejection head 14 is formed in the shape of a horizontally oriented capped cylinder with a closed front end, and the ejection hole 13 is formed in the top wall of the ejection head 14 and opens toward the front.
The rotation axis L extends in the left-right direction orthogonal to the up-down direction and the front-back direction.

The lever 15 extends in the vertical direction and is provided in front of the piston 12 so as to straddle the piston 12 in the vertical direction. A pair of rotating shafts 15b are formed at the upper end of the lever 15 and project outward in the left-right direction. The rotation shaft 15b is arranged coaxially with the rotation axis L. The lever 15 is provided so as to be movable back and forth around the rotation axis L.
As shown in FIGS. 3 and 4, the lever 15 is formed with a connecting portion 15a to which the front end of the piston 12 is connected. As a result, as the lever 15 moves back and forth around the rotation axis L, the piston 12 moves back and forth.

The lever 15 includes a main plate part 17, a side plate part 18, an end plate part 22, and a protrusion part 23.

The main plate portion 17 is curved so as to have a convex curve shape toward the rear when viewed from the left and right direction. The main plate portion 17 includes a first plate portion 24 formed in a plate shape with front and back surfaces facing in the front-rear direction. As shown in FIG. 5, the first plate portion 24 has a curved shape that projects forward in a cross-sectional view along the left-right direction. Note that the first plate portion 24 may have a linear shape extending in the left-right direction when viewed in cross section along the left-right direction.
The lever 15 is rotated around the rotation axis L so that the front-facing surface of the front and back surfaces of the first plate portion 24 pushes the piston 12 into the cylinder 11, that is, moves the piston 12 backward. It serves as a pressing surface 16 against which the finger F is sometimes pressed. As shown in FIG. 3, the main plate portion 17 has a rectangular shape extending in the vertical direction (one direction) orthogonal to the rotation axis L when the pressing surface 16 is viewed from the front. In the illustrated example, the width direction of the main plate portion 17 along the rotation axis L coincides with the left-right direction.

A pair of left and right side plate portions 18 are provided and protrude from the main plate portion 17 toward the side opposite to the pressing surface 16 . The side plate portions 18 individually protrude rearward from both ends of the main plate portion 17 in the left and right direction. A connecting portion 15a is provided at the upper end of each of the side plate portion 18 and the main plate portion 17.
The end plate portion 22 projects rearward from the main plate portion 17 and connects the lower ends of the pair of side plate portions 18 in the left-right direction. The end plate portion 22 is provided at the lower end of the main plate portion 17. The wall thickness of the end plate portion 22 is equal to the wall thickness of the side plate portion 18.
The protruding portion 23 protrudes upward from the main plate portion 17 and the side plate portion 18 via the bent portion 15c. The protrusion 23 extends rearward as it goes upward. A pair of rotating shafts 15b are formed at the upper end of the protrusion 23 and protrude outward in the left-right direction.

Here, as shown in FIG. 5, the main plate part 17 has a pair of left and right ends that separately connect both ends of the first plate part 24 in the left and right direction and each front edge 18a of the pair of side plate parts 18. It has two plate parts 25. The second plate portion 25 extends forward from the inner end portion of the front edge 18a of the side plate portion 18 in the left-right direction. The connecting portion between the second plate part 25 and the first plate part 24 is formed in a curved shape that projects diagonally forward and outward in the left-right direction.

In this embodiment, a portion of the main plate portion 17 where the pressing surface 16 is located is an elastically deformable portion 19 formed thinner than the side plate portion 18 . The elastic deformation portion 19 is provided in a portion of the main plate portion 17 located between the lower end portion where the end plate portion 22 is provided and the upper end portion where the connecting portion 15a is provided. The elastic deformation portion 19 is integrally provided with the first plate portion 24 and the pair of second plate portions 25 .

A plurality of slits 20 extending in the left-right direction are formed in the elastic deformation portion 19 at intervals in the vertical direction. The slit 20 has a width in the vertical direction and is open. The opening width of the slit 20 is narrower than the interval between the slits 20 adjacent to each other in the vertical direction. The slit 20 is integrally provided in the first plate part 24 and the pair of second plate parts 25.
The elastic deformation portion 19 is formed integrally with the side plate portion 18. The elastic deformation portion 19 is integrally formed with the side plate portion 18 from the same material (for example, polypropylene, etc.). Note that the elastic deformation portion 19 may be formed of a different material from that of the side plate portion 18.

The pressing surface 16 is provided with a covering plate 21 that is elastically deformable and made of a softer material (such as elastomer) than the material forming the main plate portion 17 and that closes the plurality of slits 20 . The thickness of the covering plate 21 is equal to the thickness of the elastically deformable portion 19. As shown in FIG. 3, the covering plate 21 has a rectangular shape extending in the vertical direction when viewed from the front of the pressing surface 16. The covering plate 21 is provided integrally with the first plate part 24 and the pair of second plate parts 25, and covers the entire elastic deformation part 19.

As shown in FIG. 5, both end portions of the covering plate 21 in the left-right direction are fixed to a pair of side plate portions 18, respectively. Both end portions of the covering plate 21 in the left-right direction are embedded in each front edge 18a of the pair of side plate portions 18.
As shown in FIG. 4, the lower end portion of the covering plate 21 is fixed to an end plate portion 22 that is thicker than the elastically deformable portion 19. As shown in FIG. The lower end of the covering plate 21 is bent backward and bonded to the lower surface of the end plate 22.

As explained above, according to the discharger 1 according to the present embodiment, the part of the main plate part 17 where the pressing surface 16 is located is the elastically deformable part 19 formed thinner than the side plate part 18, and has an elastic Since a plurality of slits 20 extending in the left-right direction are formed in the deformable portion 19 at intervals in the vertical direction, the finger F is pressed against the pressing surface 16 and the piston 12 is pushed into the cylinder 11. When the lever 15 is rotated around the rotation axis L in this direction, the pressing surface 16 can be elastically deformed to match the external shape of the finger F, as shown in FIG. It is possible to make the finger F feel a comfortable fit without any bending.

Since the elastic deformation portion 19 is formed integrally with the side plate portion 18, the lever 15 can be formed more easily than, for example, when the side plate portion 18 is injection molded using the elastic deformation portion 19 as an insert product. can.

The pressing surface 16 is provided with a covering plate 21 that is made of a material softer than the material forming the main plate part 17 and is elastically deformable and that closes the plurality of slits 20, so that the finger F can be pressed against the pressing surface 16. When applied, the touch is soft, and the finger F is prevented from shrinking into the slit 20, so that the finger F can reliably feel a comfortable fit.

Since both ends of the covering plate 21 in the left and right direction are separately fixed to a pair of side plate parts 18 formed thicker than the elastic deformation part 19, the covering plate 21 can be firmly fixed to the lever 15.
Since the lower end of the cover plate 21 is fixed to the end plate part 22 which is thicker than the elastically deformable part 19, the cover plate 21 can be firmly fixed to the lever 15.

Note that the technical scope of the present invention is not limited to the embodiments described above, and various changes can be made without departing from the spirit of the present invention.

For example, the discharge device may be a pump that discharges the content liquid straight from a discharge hole.
As a discharge device, for example, as shown in Patent Document 2, a cylinder and a piston are provided vertically, the central axis of the cylinder extends in the vertical direction, and the piston is fitted into the cylinder so as to be movable in the vertical direction. , a stem linked to the vertical movement of the piston is provided, a discharge head is attached to the upper end of the stem, a lever straddles the top of the discharge head in the front-rear direction, a pressing surface is provided in front of the cylinder, and A configuration may be adopted in which the cylinder extends in the vertical direction and the rotation axis L is provided at the rear of the cylinder.

In addition, without departing from the spirit of the present invention, the components in the embodiments described above can be replaced with well-known components as appropriate, and the modifications described above may be combined as appropriate.

11 Cylinder 12 Piston 13 Discharge hole 14 Discharge head 15 Lever 16 Pressing surface 17 Main plate part 18 Side plate part 19 Elastic deformation part 20 Slit 21 Cover plate 22 End plate part L Rotation axis O Center axis W Container body

Claims (4)

a cylinder to which the liquid content in the container body is supplied;
a piston fitted into the cylinder so as to be movable along the central axis of the cylinder;
a discharge head in which a discharge hole is formed;
A lever rotatably supported around a rotation axis;
As the lever rotates around the rotational axis, the piston moves inside the cylinder along the central axis of the cylinder, and when the piston is pushed into the cylinder, the liquid inside the cylinder is When the liquid is discharged from the discharge hole and the piston returns to the outside of the cylinder, the liquid inside the container body is supplied into the cylinder,
The lever is
a main plate portion having a pressing surface against which a finger is pressed when the piston is rotated about the rotational axis in a direction to push the piston into the cylinder;
a pair of side plate parts protruding from the main plate part toward the opposite side of the pressing surface,
The main plate portion has a rectangular shape extending in one direction perpendicular to the rotation axis when viewed from the front of the pressing surface,
A portion of the main plate portion where the pressing surface is located is an elastically deformable portion formed thinner than the side plate portion,
The ejector, wherein a plurality of slits extending along the rotation axis are formed in the elastic deformation portion at intervals in the one direction. The ejector according to claim 1, wherein the elastic deformation portion is integrally formed with the side plate portion. The ejector according to claim 1 or 2, wherein the pressing surface is provided with a cover plate that is elastically deformable and made of a softer material than the material forming the main plate portion, and that closes the plurality of slits. . The lever protrudes from the main plate portion toward the opposite side of the pressing surface, and the lever includes a pair of side plate portions that extend opposite ends of the rotation axis along the one direction to each other in a direction along the rotation axis. is provided with an end plate portion connected to the
The end plate portion is formed thicker than the elastic deformation portion,
The ejector according to claim 3, wherein an end of the cover plate opposite to the axis of rotation along the one direction is fixed to the end plate.

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