JP2022073123A - Spray container - Google Patents

Abstract

To provide a spray container which is easy for a user to grip.SOLUTION: A spray container 1 comprises an ejector 10 and a container body 20. The container body 20 has: a front face 21; a rear face 22; a pair of side faces 23, 24 connecting the front face 21 and rear face 22; a fitting part 25 fitted with the ejector 10; a bottom face 26 positioned on a side opposite to the fitting part 25; and a first connection curved surface 27 which has a curved-surface shape convex toward outside the container body 20, and connecting the fitting part 25 and rear face 22. The rear face 22 includes, on the first connection curved surface 27 side, an upper curved-surface part 22a defined with a first curved line whose X-directional and Y-directional lateral cross-sectional shape is convex toward behind of the container body 20, and a second curved line whose X-directional and Z-directional longitudinal cross-sectional shape is convex toward front of the container body 20, and a vertex P2 of the second curved surface is positioned on the fitting part 25 side of the Z-directional center position of the container body 20.SELECTED DRAWING: Figure 5

Description

The present invention relates to a spray container.

Patent Document 1 discloses an example of a trigger type pump dispenser. The trigger type pump dispenser includes a finger receiving portion formed so as to project rearward and a finger hook portion formed on the trigger. When the user grasps the finger receiving portion and the finger hook portion and pulls the trigger, the liquid is ejected from the nozzle portion. The finger receiving portion is located as lower as possible within the range that the user can grip, and the pulling force of the trigger efficiently generates turning power.

International Publication No. 09/0282886

However, the finger receiving portion of the trigger type pump dispenser described in Patent Document 1 has a structure for efficiently using the force for pulling the trigger, and is not necessarily a structure for easily gripping the container. Therefore, it is desired to further improve the gripability of the spray container.

An object of the present invention is to provide a spray container that is easy for the user to grasp.

The present invention relates to a spray container as one aspect. This spray container includes a container body capable of containing a liquid and a ejector attached to the container body for ejecting the liquid. The container body faces each other in the front surface located on the ejection port side of the ejector, the rear surface located on the opposite side in the front surface and the first direction, and the second surface intersecting the first direction, and connects the front surface and the rear surface. A pair of side surfaces, a mounting part to which the ejector is mounted, a bottom surface located on the opposite side of the mounting part in the third direction intersecting the first and second directions, and a curved surface shape convex toward the outside of the container body. It has a first connection curved surface that connects the mounting portion and the rear surface. On the rear surface, the first curve whose cross-sectional shape along the first and second directions is convex toward the rear of the container body and the vertical cross-sectional shape along the first and third directions are convex toward the front of the container body. The first curved surface portion defined by the second curved surface of the above is included in the first connecting curved surface side. The apex of the second curve is located closer to the mounting portion than the central position in the third direction of the container body.

In this spray container, a first curved surface portion defined by a first curve whose cross-sectional shape is convex toward the rear of the container body and a second curve whose vertical cross-sectional shape is convex toward the front of the container body is on the rear surface. It is provided so that the apex of the second curve of the first curved surface portion is located closer to the mounting portion than the central position of the container body. According to this configuration, when the user grips the spray container so that the index finger (second finger) of the user's hand is hooked on the trigger, the palm portion of the user does not feel uncomfortable (or naturally) on the first curved surface portion. It is possible to grip the spray container so that it fits (in a proper shape), and it is possible to improve the gripability of the user.

In the above spray container, it is preferable that at least one of the pair of side surfaces has a recess recessed inside the container body. According to this configuration, when the user grips the spray container so that the index finger is hooked on the trigger, the thumb (first finger) part of the user's hand (for example, the part from the second joint to the base of the first finger). However, the spray container can be gripped so that it fits comfortably in this recess, and the gripping property of the user can be further improved. In this configuration, it is preferable that at least a part of the recess is located closer to the mounting portion than the central position in the third direction of the container body. Further, it is preferable that the first curved surface portion is smoothly continuous with the concave portion. With such a configuration, when the user grips the spray container so that the index finger hangs on the trigger, the thumb portion of the user fits in the recess more smoothly, further improving the grip of the user. Is possible.

In the above spray container, the first connection curved surface is defined by a fifth curve whose cross-sectional shape along the first direction and the second direction is convex toward the rear of the container body. The radius of curvature of the fifth curve is preferably 10.5 mm or more and 20.0 mm or less, and the radius of curvature of the first curve is preferably 10.5 mm or more and 20.0 mm or less. According to this configuration, when the user grips the spray container so that the index finger is hooked on the trigger, the fit of the palm portion of the user is improved, and the gripping property of the user can be further improved. In this configuration, the radius of curvature of the fifth curve is more preferably 12.5 mm or more and 14.0 mm or less, and the radius of curvature of the first curve is further preferably 12.5 mm or more and 14.0 mm or less. preferable.

In the above spray container, it is preferable that the container body has a curved surface shape that is convex toward the outside of the container body, and further has a second connecting curved surface that connects the mounting portion and the front surface. According to this configuration, when the user grips the spray container so that the index finger is hooked on the trigger, there is no edge contact when the middle finger (third finger) portion of the user touches the second connection curved surface, and the spray container is gentle. Since it is possible to give the user a comfortable feel, it is possible to further improve the gripability of the user.

In the above spray container, the front surface has a third curve whose cross-sectional shape along the first and second directions is convex toward the front of the container body, and a vertical cross-sectional shape along the first and third directions of the container body. It is preferable to include a second curved surface portion defined by a fourth curve that is convex toward the rear of the container, and the apex of the fourth curve is located closer to the mounting portion than the central position in the third direction of the container body. It is preferable to have. According to this configuration, when the user grips the spray container so that the index finger is hooked on the trigger, the middle finger portion, the ring finger (fourth finger) portion, the little finger (fifth finger) portion, and the like of the user are the second curved surface. The container will be gripped in contact with the portion, and the gripping property of the user can be further improved. In the above configuration, it is preferable that the apex of the fourth curve is located closer to the mounting portion than the apex of the second curve in the third direction. By arranging the first curved surface portion and the second curved surface portion in such a height relationship, the ease of pulling the trigger with the index finger is improved when the spray container is gripped from the thumb and the index finger to the ring finger. Can be made to.

The present invention relates to a spray container as another aspect. This spray container includes a container body capable of containing a liquid and a ejector attached to the container body for ejecting the liquid. The container body faces each other in the front surface located on the ejection port side of the ejector, the rear surface located on the opposite side in the front surface and the first direction, and the second direction intersecting the first direction, and connects the front surface and the rear surface. It has a pair of side surfaces, a mounting portion to which the ejector is mounted, and a bottom surface located opposite the mounting portion in the third direction intersecting the first and second directions. In this spray container, the second finger of the user of the spray container is located on the trigger of the ejector, the first finger of the hand is located on one of the pair of sides, and at least part of the palm of the hand is on the back surface. When the trigger is pulled by the second finger in the positioned state, the pressure applied to the first region from the tip of the first finger to the first joint becomes 4.0 kPa or more, and the first joint to the second joint of the first finger At least one of the pressure applied to the second region up to the joint and the pressure applied to the third region located between the base of the first finger and the base of the second finger of the palm becomes the first pressure or less, and the first of the palms. At least one of the pressure applied to the fourth region of the base of the two fingers and the pressure applied to the fifth region of the base of the third finger of the hand is the second pressure or higher. When the first pressure indicates the pressure applied to the second region, the first pressure is 15.0 kPa. When the first pressure indicates the pressure applied to the third region, the first pressure is 19.0 kPa. When the second pressure indicates the pressure applied to the fourth region, the second pressure is 7.0 kPa. When the second pressure indicates the pressure applied to the fifth region, the second pressure is 1.0 kPa. According to the study of the present inventor, when the user grips the spray container, each part of the user's finger is a container having the above-mentioned gripping pressure, so that the gripping property of the user can be improved.

The present invention relates to an insect repellent product as another aspect. This insect repellent product comprises a spray container configured by any of the above-mentioned configurations alone or in combination, and an insect repellent liquid contained in the spray container. According to such a configuration, it is possible to provide an insect repellent product that is easy to grip and handle the container when ejecting the insect repellent liquid. The internal volume of the spray container used for such an insect repellent product is not limited to this, but is preferably 1 cm ³ or more and 500 cm ³ or less in terms of portability, and 100 cm ³ or more and 250 cm ³ or less. It is more preferable in terms of portability. The present invention may be applied to products in containers other than insect repellent products, and can be applied to, for example, insecticidal products, repellent products, sterilizing products, sterilizing products, antibacterial products, deodorizing products, fragrance products and the like. .. Such a product in a container includes a spray container configured by using any of the above-mentioned configurations alone or in combination, a predetermined liquid contained in the spray container (for example, a liquid such as an alcohol solution for disinfection), and the like. To prepare for. In this case as well, the user can easily grasp and handle the container as described above.

As yet another aspect, the present invention relates to a method for designing a spray container. This method of designing a spray container is a method of designing a spray container including a container body capable of containing a liquid and an ejector attached to the container body, and the ejector is in a state where the container body is grasped by a user's hand. When pulling the trigger with the second finger of the hand, the pressure applied to the first region from the tip of the first finger of the hand to the first joint becomes 4.0 kPa or more, and from the first joint to the second joint of the first finger. At least one of the pressure applied to the second region and the pressure applied to the third region located between the base of the first finger and the base of the second finger of the palm of the hand is equal to or less than the first pressure, and the first of the palms. At least one of the pressure applied to the fourth region of the base of the two fingers and the pressure applied to the fifth region of the base of the third finger of the palm is the second pressure or higher, and the first pressure applies the pressure applied to the second region. In the case shown, the first pressure is 15.0 kPa, and when the first pressure indicates the pressure applied to the third region, the first pressure is 19.0 kPa and the second pressure is the fourth region. When the pressure applied to is indicated, the second pressure is 7.0 kPa, and when the second pressure indicates the pressure applied to the fifth region, the second pressure is 1.0 kPa. Design a spray container.

According to this spray container design method, the spray container is designed so that the gripping pressure when the user grips the spray container becomes a predetermined value. According to the study of the present inventor, when the user grips the spray container, each part of the user's finger is a container that has the above-mentioned gripping pressure, so that the gripping property of the user can be greatly improved. ..

According to the present invention, as one aspect, it is possible to provide a spray container that is easy for the user to grasp.

FIG. 1 is a side view showing a spray container according to the first embodiment. FIG. 2 is a perspective view showing a container body of the spray container according to the first embodiment. FIG. 3 is a side view when the container body shown in FIG. 2 is visually recognized from one side surface side. FIG. 4 is a side view when the container body shown in FIG. 2 is visually recognized from the other side surface side. FIG. 5 is a view when the container body shown in FIG. 2 is visually recognized from the rear surface side. FIG. 6 is a cross-sectional view of the container body shown in FIG. 2 when cut along the VI-VI line shown in FIG. FIG. 7 is a diagram showing the positional relationship between the spray container and the user's finger when the user holds the spray container shown in FIG. 1 with his / her right hand. FIG. 8 is a diagram showing the positional relationship between the spray container and the user's finger when the user holds the spray container shown in FIG. 1 with his / her left hand. FIG. 9 is a diagram showing a pressure measurement region on the surface of the right hand. FIG. 10 is a side view when the spray container according to the second embodiment is visually recognized from the side surface side of the container body. FIG. 11 is a view when the container body of the spray container shown in FIG. 10 is visually recognized from the rear surface side. FIG. 12 is a side view of the spray container according to Comparative Example 1 when visually recognized from the side surface side of the container body. FIG. 13 is a side view when the spray container according to Comparative Example 2 is visually recognized from the side surface side of the container body.

Hereinafter, the spray container according to the embodiment of the present invention will be described in detail with reference to the drawings. In the description, the same reference numerals may be used for the same elements or elements having the same function, and duplicate description will be omitted.

[First Embodiment]
FIG. 1 is a side view showing the spray container 1 according to the first embodiment. The spray container 1 is a container that ejects the liquid contained in the container body 20 to the outside by the operation of the trigger 13 by the user, and includes the ejector 10 and the container body 20. The liquid is ejected from the ejection port 14 of the ejector 10 toward the left side of the paper in FIG. In the following description, the direction along the jetting direction of the liquid is the front-back direction of the spray container 1 (X direction shown in FIG. 1), and the direction intersecting the front-back direction along the horizontal plane is the left-right direction (Y direction shown in FIG. 1). The direction that intersects the front-back direction and the left-right direction is the vertical direction (Z direction shown in FIG. 1). In this embodiment, the X direction, the Y direction, and the Z direction are orthogonal (intersect) with each other. In the description of the spray containers 2 to 4 described later, the direction is defined by the same method. The X direction corresponds to the first direction, the Y direction corresponds to the second direction, and the Z direction corresponds to the third direction.

The ejector 10 has a cap portion 11, an ejector main body 12, a trigger 13, and an ejection port 14. The cap portion 11 is a member that detachably connects the ejector 10 to the container body 20. The inner surface of the cap portion 11 is threaded (female threaded) and fitted to the mounting portion 25 (see FIG. 2) of the container body 20 which is also threaded (male threaded). .. Inside the cap portion 11, a small-diameter pipe portion (not shown) is provided so as to penetrate therethrough. One end of the pipe portion extends to the lower part of the container main body 20, and the other end is connected to a flow path (not shown) inside the ejector main body 12 described later. The liquid contained in the container body 20 is sucked up to the ejector 10 through the pipe portion and ejected.

The ejector main body 12, the trigger 13, and the ejection port 14 are members for sucking up the liquid contained in the container main body 20 and ejecting it to the outside. The ejector main body 12 has a flow path through which the liquid passes (not shown) and a pump (not shown) connected to the flow path inside. One end of the flow path is connected to the above-mentioned pipe portion, and the other end is connected to the ejection port 14. When the user pulls the trigger 13, the pump operates, the liquid inside the flow path is pressurized, and the liquid is ejected from the ejection port 14 to the front of the spray container 1 (on the left side of the paper in FIG. 1). In the present embodiment, the ejection includes a spray that ejects a liquid in the form of a mist. After that, when the user releases the trigger 13, the trigger 13 and the pump return to the original state, which causes negative pressure inside the flow path, and the liquid contained in the container body 20 passes through the pipe portion of the ejector body 12. It flows into the flow path. The user can continuously eject the liquid by repeating the operation of pulling the trigger 13 and the operation of releasing the trigger 13. The configuration of the ejector 10 is not limited, and any configuration capable of ejecting the liquid contained in the container body 20 to the outside can be adopted.

The container body 20 is a bottomed cylindrical container and has a structure capable of accommodating a liquid inside. The type and use of the liquid are not limited, but as an example, the liquid contained in the container body 20 may be an insect repellent, an insecticide, a mold remover, a disinfectant, a deodorant, or a fragrance. When the liquid is an insect repellent liquid (insect repellent), the liquid contains insect repellent components such as DEET, icaridin, p-menthane-3,8-diol, menthol, ethyl butylacetylaminopropionate, pyrethroid compounds, and essential oils. It may be included, in which case the spray container 1 can be applied to the insect repellent product. Further, depending on the type and use of the liquid contained in the container body 20, the spray container 1 can be applied to insecticidal products, repellent products, sterilizing products, sterilizing products, antibacterial products, deodorizing products, fragrance products and the like. can. The amount of liquid that can be contained in the container body 20 may be, for example, 1 mL or more and 500 mL or less, and may be 100 mL to 250 mL as an example. In other words, the internal volume of the container body 20 may be 1 cm ³ or more and 500 cm ³ or less, or 100 cm ³ or more and 250 cm ³ or less. Such a container body 20 can be manufactured, for example, by resin molding.

The shape of the container body 20 will be described with reference to FIGS. 2 to 6. FIG. 2 is a perspective view showing the container body 20. FIG. 3 is a side view when the container body 20 is visually recognized from the side surface 23 side. FIG. 4 is a side view when the container body 20 is visually recognized from the side surface 24 side. FIG. 5 is a view when the container body 20 is visually recognized from the rear surface 22 side. FIG. 6 is a cross-sectional view of the container body 20 when cut along the VI-VI line shown in FIG. The container body 20 includes a front surface 21, a rear surface 22, a pair of side surfaces 23 and 24, a mounting portion 25, a bottom surface 26, a first connection curved surface 27, and a second connection curved surface 28.

The front surface 21 is a surface located on the front side of the container body 20. The front surface 21 has an upper curved surface portion 21a (second curved surface portion) and a lower curved surface portion 21b. As shown in FIG. 3, the upper curved surface portion 21a has a curved shape (fourth curve) that is convex toward the rear of the container body 20 in a vertical cross-sectional view (hereinafter referred to as XZ cross-sectional view) along the XZ plane. ing. The apex P1 of the fourth curve is located closer to the mounting portion 25 than the central position of the container body 20 in the Z direction. The central position used here means the center in the distance from the bottom surface 26 of the container body 20 to the top surface of the mounting portion 25 along the Z direction. Further, the apex P1 is located closer to the mounting portion 25 than the apex P2 of the rear surface 22 described later. The upper end portion of the upper curved surface portion 21a is smoothly connected to the second connecting curved surface portion 28, and the lower end portion is smoothly connected to the lower curved surface portion 21b. Smooth connection means that the surfaces to be connected are continuously connected without forming a cut or a ridgeline.

As shown in FIG. 6, the upper curved surface portion 21a has a curved shape (third curve) that is convex toward the front of the container body 20 in a cross-sectional view along the XY plane (hereinafter referred to as XY cross-sectional view). There is. The radius of curvature of the third curve may be, for example, 12.0 mm or more and 20.0 mm or less, or 12.0 mm or more and 16.0 mm or less. The radius of curvature of the third curve may be larger than the radius of curvature of the curve in the XY cross-sectional view of the second connecting curved surface 28 (see FIG. 2) described later. The upper curved surface portion 21a is located closer to the mounting portion 25 than the upper curved surface portion 22a of the rear surface 22 described later. When the user grips the spray container 1 with his right hand, for example, the middle finger (third finger F3), ring finger (fourth finger F4), and little finger (fifth finger F5) of the user's right hand are on the upper curved surface portion 21a. May be in contact (see Figure 7). Similarly, when the user grips the spray container 1 with his left hand, the upper curved surface portion 21a has, for example, the middle finger (third finger F13), ring finger (fourth finger F14), and little finger (fifth finger) of the user's left hand. The finger F15) may come into contact (see FIG. 8). As shown in FIG. 3, the lower curved surface portion 21b has a curved shape that is convex toward the front of the container body 20 in the XZ plan view. The upper end portion of the lower curved surface portion 21b is smoothly connected to the upper curved surface portion 21a, and the lower end portion is connected to the bottom surface 26.

The rear surface 22 is a surface located on the rear side (opposite side of the front surface 21 in the X direction) of the container body 20. The rear surface 22 has an upper curved surface portion 22a (first curved surface portion) and a lower curved surface portion 22b. The upper curved surface portion 22a has a curved shape (second curve) that is convex toward the front of the container body 20 in the XZ cross-sectional view. The apex P2 of the second curve is located closer to the mounting portion 25 than the central position of the container body 20 in the Z direction. The upper end portion of the upper curved surface portion 22a is smoothly connected to the first connecting curved surface portion 27, and the lower end portion is smoothly connected to the lower curved surface portion 22b.

As shown in FIG. 6, the upper curved surface portion 22a has a curved (first curved) shape that is convex toward the rear of the container body 20 in the XY cross-sectional view. The radius of curvature of the first curve may be, for example, 10.5 mm or more and 20.0 mm or less, or 12.5 mm or more and 14.0 mm or less. When the user grips the spray container 1 with his / her right hand, for example, the base portion of the thumb (first finger F1) of the user's right hand may come into contact with the upper curved surface portion 22a (see FIG. 7). Similarly, when the user grips the spray container 1 with his / her left hand, for example, the base portion of the thumb (first finger F11) of the user's left hand may come into contact with the upper curved surface portion 22a (FIG. 8). reference). As shown in FIG. 3, the lower curved surface portion 22b has a curved shape that is convex toward the rear of the container body 20 in the XZ plan view. The upper end portion of the lower curved surface portion 22b is smoothly connected to the upper curved surface portion 22a, and the lower end portion is connected to the bottom surface 26.

The side surface 23 is a surface located on the left side of the container body 20 when the container body 20 is viewed from the rear surface 22. As shown in FIG. 5, the side surface 23 faces the side surface 24 in the Y direction. The side surface 23 has a recess 23a recessed inside the container body 20. As shown in FIG. 3, the edge of the recess 23a has an S-shape on the side surface 23. Therefore, the upper region of the side surface 23 is provided with the recess 23a in a wider range than the lower region. When the user grips the spray container 1 with his / her right hand, for example, the thumb (first finger F1) of the user's right hand may come into contact with the recess 23a (see FIG. 7). Further, when the user grips the spray container 1 with his / her left hand, for example, a part of the palm of the user's left hand may come into contact with the recess 23a (see FIG. 8). As shown in FIGS. 5 and 6, the recess 23a is smoothly connected to the upper curved surface portion 22a of the rear surface 22. The position of the recess 23a is not limited, and for example, the recess 23a may be provided only in the upper region of the side surface 23. Further, the shape of the recess 23a is not limited, and for example, the edge of the recess 23a may have a linear shape along the Z direction instead of an S shape.

The side surface 24 is a surface located on the right side of the container body 20 when the container body 20 is viewed from the rear surface 22. The side surface 24 has a shape symmetrical to the side surface 23 with respect to the XZ plane. The side surface 24 has a recess 24a recessed inside the container body 20. As shown in FIG. 4, the edge of the recess 24a has an inverted S shape on the side surface 24. Therefore, the upper region of the side surface 24 is provided with the recess 24a in a wider range than the lower region. When the user grips the spray container 1 with his / her right hand, for example, a part of the palm of the user's right hand may come into contact with the recess 24a (see FIG. 7). Further, when the user grips the spray container 1 with his / her left hand, for example, the thumb (first finger F11) of the user's left hand may come into contact with the recess 24a (see FIG. 8). As shown in FIGS. 5 and 6, the recess 24a is smoothly connected to the upper curved surface portion 22a of the rear surface 22. The position of the recess 24a is not limited, and for example, the recess 24a may be provided only in the upper region of the side surface 24. Further, the shape of the recess 24a is not limited, and for example, the edge of the recess 24a may have a linear shape along the Z direction instead of an inverted S shape.

As shown in FIG. 6, the cross section of the container body 20 provided with the upper curved surface portions 21a and 22a in XY cross-sectional view has a substantially elliptical shape. Since the recesses 23a and 24a are provided on the pair of side surfaces 23 and 24, the cross section has a shape slightly collapsed in the Y direction on the rear side of the container body 20. The length of the outer circumference (the outer circumference of the cross section shown in FIG. 6) of the portion of the container body 20 where the upper curved surfaces 21a and 22a are provided may be, for example, 135 mm or more and 165 mm or less.

The mounting portion 25 is a tubular member located at the upper part of the container body 20 and extending along the Z direction. The outer surface of the mounting portion 25 is threaded (male threaded) so that the cap portion 11 of the ejector 10 can be attached to and detached from the mounting portion 25. The mounting portion 25 has an opening 25a at the tip thereof. For example, when the amount of liquid in the container body 20 is insufficient, the liquid can be replenished from the opening 25a. From the base end portion of the mounting portion 25, the first connecting curved surface 27 extends toward the rear of the container main body 20, and the second connecting curved surface 28 extends toward the front of the container main body 20. The base end portion of the mounting portion 25 may include a flat surface portion.

The bottom surface 26 is a surface located below the container body 20. The bottom surface 26 is a surface that comes into contact with the mounting surface when the spray container 1 is mounted on a mounting surface such as a desk. The bottom surface 26 may be a flat surface extending along an XY plane, or may have a recessed portion inside the container body 20. The distance along the Z direction from the bottom surface 26 to the base end portion of the mounting portion 25 may be, for example, 150 mm or more and 190 mm or less.

The first connection curved surface 27 is a surface that connects the mounting portion 25 and the rear surface 22. As shown in FIGS. 2 and 3, the first connecting curved surface 27 has a curved shape that is convex toward the outside (rear) of the container body 20 in the XY cross-sectional view and the XZ cross-sectional view. Assuming that the curve of the first connection curved surface 27 in the XY cross-sectional view is the fifth curve, the radius of curvature of the fifth curve may be, for example, 10.5 mm or more and 20.0 mm or less, or 12.5 mm or more and 14.0 mm. It may be as follows.

The second connecting curved surface 28 is a surface that connects the mounting portion 25 and the front surface 21. As shown in FIGS. 2 and 3, the second connecting curved surface 28 has a curved shape that is convex toward the outside (front) of the container body 20 in the XY cross-sectional view and the XZ cross-sectional view. Assuming that the curve of the second connecting curved surface 28 in the XY cross-sectional view is the sixth curve, the radius of curvature of the sixth curve may be, for example, 12.0 mm or more and 20.0 mm or less, or 12.0 mm or more and 16.0 mm. It may be as follows.

Next, with reference to FIGS. 7 and 9, the pressure (grasping pressure) applied to the user when the spray container 1 is gripped by the right hand will be described. FIG. 7 is a diagram showing the positional relationship between the container body 20 and the right hand of the user who holds the container body 20. FIG. 9 is a diagram showing a pressure measurement region on the surface of the right hand. According to the findings of the present inventors, the ease of gripping the spray container 1 changes depending on the magnitude of the gripping pressure of the spray container 1. Therefore, it is preferable that the shape of the spray container 1 is designed so that the gripping pressure is appropriate. First, a method of measuring the gripping pressure will be described. In the present embodiment, the case where the spray container 1 is gripped with the right hand will be described as an example, but the same method can be adopted when the measurement is performed with the left hand. The thumb of the right hand will be described as the first finger F1, the index finger as the second finger F2, the middle finger as the third finger F3, the ring finger as the fourth finger F4, and the little finger as the fifth finger F5.

The user attaches a sensor sheet for measuring pressure to the surface of the right hand. The sensor sheet can measure the pressure applied to each region of the hand indicated by the number in FIG. The sensor sheet may be, for example, "grasping pressure distribution measurement system sensor sheet 4256E" manufactured by Nitta Corporation. With the sensor sheet attached, as shown in FIG. 7, the user positions the first finger F1 in the recess 23a, the second finger F2 in the trigger 13, and the third finger F3 on the second connecting curved surface. The spray container 1 is positioned between the 28 and the upper curved surface portion 21a, and the spray container 1 is gripped so that the fourth finger F4 and the fifth finger F5 are positioned on the upper curved surface portion 21a. At this time, at least a part of the user's palm comes into contact with the upper curved surface portion 21a, the side surface 24, and the concave portion 24a. In this state, the user pulls the trigger 13 with the second finger F2, and the pressure applied to the surface of the right hand is measured by the measuring system. The measurement system is a system for measuring pressure using the sensor sheet attached to the right hand of the user, and may be, for example, "surface pressure distribution measurement system I-SCAN" manufactured by Nitta Corporation.

Next, a specific numerical value of the gripping pressure that the user feels easy to grip the spray container 1 will be described. The pressure applied to the first region A1 (region indicated by the number "1") from the tip of the first finger F1 shown in FIG. 9 to the first joint is preferably 4.0 kPa or more, preferably 5.0 kPa or more. It is more preferable that the pressure is 13.0 kPa or less, and it is preferable that the pressure is 13.0 kPa or less. The pressure applied to the second region A2 (region indicated by the number "2") from the first joint to the second joint of the first finger is preferably 15.0 kPa (first pressure) or less, preferably 14.0 kPa. It is more preferably 13.0 kPa or less, and more preferably 8.0 kPa or more. The pressure applied to the third region A3 (region indicated by the number "8") located between the base of the first finger F1 and the base of the second finger F2 in the palm is 19.0 kPa (first pressure) or less. It is preferably 16.0 kPa or less, more preferably 14.0 kPa or less, and more preferably 7.0 kPa or more.

The pressure applied to the fourth region A4 (region indicated by the number "12") located at the base of the second finger F2 in the palm is preferably 7.0 kPa (second pressure) or more, and is preferably 10.0 kPa or more. It is more preferably 13.0 kPa or more, and more preferably 16.0 kPa or less. The pressure applied to the fifth region A5 (region indicated by the number "16") located between the base of the third finger F3 and the base of the fourth finger F4 in the palm is 1.0 kPa (second pressure) or more. It is preferably 4.0 kPa or more, more preferably 5.0 kPa or more, and more preferably 16.0 kPa or less. The spray container 1 is preferably designed so that the gripping pressure when gripped by hand satisfies all the above conditions, but the pressure applied to all the regions from the first region A1 to the fifth region A5 satisfies the above conditions. It does not have to be satisfied. Specifically, the pressure applied to the second region A2 and the pressure applied to the third region A3 may be such that at least one of these pressures satisfies the above conditions. As for the pressure applied to the fourth region A4 and the pressure applied to the fifth region A5, it is sufficient that at least one of these pressures satisfies the above conditions.

As described above, in the spray container 1 according to the present embodiment, the cross-sectional shape is defined by the first curve that is convex toward the rear of the container body 20, and the vertical cross-sectional shape is defined by the second curve that is convex toward the front of the container body 20. The upper curved surface portion 22a to be formed is provided on the rear surface 22, and the apex P2 of the second curve of the upper curved surface portion 22a is located closer to the mounting portion 25 than the central position of the container body 20. According to this configuration, when the user grips the spray container 1 so that the index finger of the user's hand hangs on the trigger 13, the palm portion of the user does not feel uncomfortable (or naturally) with the upper curved portion 22a. ) The spray container 1 can be gripped so as to fit, and the gripping property of the user can be improved.

Further, in the spray container 1 according to the present embodiment, the side surface 23 has a recess 23a recessed inside the container body 20. Therefore, when the user grips the spray container 1 (container body 20) so that the index finger is hooked on the trigger, the thumb portion of the user's hand (for example, the portion from the second joint to the base of the first finger) is recessed. The spray container can be gripped so that it fits comfortably in 23a, and the gripping property of the user can be further improved. When the user grips the spray container 1 with his left hand, the recess 24a on the side surface 24 has the same effect. Further, the recesses 23a and 24a are located closer to the mounting portion 25 than the central position of the container body 20 in the Z direction, and the upper curved surface portion 22a is smoothly continuous with the recesses 23a and 24a. With such a configuration, when the user grips the spray container 1 so that the index finger hangs on the trigger 13, the thumb portion of the user fits in the recess 23a or 24a more smoothly, and the gripability of the user Can be further improved.

Further, in the spray container 1 according to the present embodiment, the first connection curved surface 27 is defined by a fifth curve whose cross-sectional shape along the X direction and the Y direction is convex toward the rear of the container body 20. The radius of curvature of the fifth curve is preferably 10.5 mm or more and 20.0 mm or less, and the radius of curvature of the first curve is preferably 10.5 mm or more and 20.0 mm or less. According to this configuration, when the user grips the spray container 1 so that the index finger hangs on the trigger 13, the palm portion of the user fits well, and the gripability of the user can be further improved. Become.

Further, in the spray container 1 according to the present embodiment, the container body 20 has a curved surface shape that is convex toward the outside of the container body 20, and further has a second connecting curved surface 28 that connects the mounting portion 25 and the front surface 21. Have. According to this configuration, when the user grips the spray container 1 so that the index finger hangs on the trigger 13, there is no edge contact when the user's middle finger portion comes into contact with the second connection curved surface 28, and the feel is gentle. Can be given to the user, so that the gripability of the user can be further improved.

Further, in the spray container 1 according to the present embodiment, the front surface 21 has a third curve whose cross-sectional shape along the X and Y directions is convex toward the front of the container body 20, and a vertical cross section along the X and Z directions. The upper curved surface portion 21a whose shape is defined by a fourth curve convex toward the rear of the container body 20 is included, and the apex P1 of the fourth curve is attached to the container body 20 with respect to the central position in the Z direction. It is located on the side of the part 25. According to this configuration, when the user grips the spray container 1 so that the index finger hangs on the trigger 13, the user's middle finger portion, ring finger portion, little finger portion, etc. come into contact with the upper curved surface portion 21a to grip the container. Therefore, it becomes possible to further improve the gripping property of the user. In the spray container 1, the apex P1 of the fourth curve of the upper curved surface portion 21a is located closer to the mounting portion 25 than the apex P2 of the second curve of the upper curved surface portion 22a in the Z direction. Since the upper curved surface portion 22a and the upper curved surface portion 21a are arranged in such a height relationship, it is easy to pull the trigger 13 with the index finger when the spray container 1 is gripped from the thumb and the index finger with the ring finger. Can be improved.

Further, the spray container 1 according to the present embodiment includes a container main body 20 capable of accommodating a liquid, and a ejector 10 attached to the container main body 20 for ejecting the liquid. The container body 20 faces the front surface 21 located on the ejection port side of the ejector 10, the rear surface 22 located on the opposite side of the front surface 21 in the X direction, and the front surface 21 and the rear surface in the Y direction intersecting the X direction. It has a pair of side surfaces 23 and 24 connecting the 22s, a mounting portion 25 to which the ejector 10 is mounted, and a bottom surface 26 located on the opposite side of the mounting portion 25 in the Z direction intersecting the X and Y directions. In this spray container 1, the second fingers F2 and F12 of the user's hand of the spray container 1 are positioned on the trigger 13 of the ejector 10, and the first fingers F1 and F11 of the hand are placed on one of the pair of side surfaces 23 and 24. When the trigger 13 is pulled by the second finger with the position and at least a part of the palm of the hand positioned on the upper curved portion 22a, the first region from the tips of the first fingers F1 and F11 to the first joint. The pressure applied to the hands becomes 4.0 kPa or more, and the pressure applied to the second region from the first joint to the second joint of the first fingers F1 and F11 and the base of the first fingers F1 and F11 and the second finger F2 of the palms, At least one of the pressures applied to the third region located between the base of F12 is the first pressure or less, the second finger F2 of the palm, the pressure applied to the fourth region of the base of F12, and the hand of the palm. At least one of the pressures applied to the fifth region at the bases of the three fingers F3 and F13 is the second pressure or higher. When the first pressure indicates the pressure applied to the second region, the first pressure is 15.0 kPa. When the first pressure indicates the pressure applied to the third region, the first pressure is 19.0 kPa. When the second pressure indicates the pressure applied to the fourth region, the second pressure is 7.0 kPa. When the second pressure indicates the pressure applied to the fifth region, the second pressure is 1.0 kPa. According to the study of the present inventor, when the user grips the spray container 1, each part of the finger of the user is a container having the above-mentioned gripping pressure, so that the gripping property of the user can be improved.

Further, in the design method of the spray container 1 according to the present embodiment, when the trigger 13 of the ejector 10 is pulled by the second fingers F2 and F12 of the hand while the container body 20 is held by the user's hand, the hand is used. The pressure applied to the first region from the tips of the first fingers F1 and F11 to the first joint is 4.0 kPa or more, and the pressure applied to the second region of the first fingers F1 and F11 from the first joint to the second joint and At least one of the pressures applied to the third region located between the bases of the first fingers F1 and F11 and the bases of the second fingers F2 and F12 in the palm of the hand becomes the first pressure or less, and the second finger of the palm. At least one of the pressure applied to the fourth region at the base of F2 and F12 and the pressure applied to the fifth region at the base of the third finger F3 and F13 of the palm is the second pressure or higher, and the first pressure is the second region. When the first pressure indicates the pressure applied to the third region, the first pressure is 15.0 kPa, and when the first pressure indicates the pressure applied to the third region, the first pressure is 19.0 kPa and the second pressure. When indicates the pressure applied to the fourth region, the second pressure is 7.0 kPa, and when the second pressure indicates the pressure applied to the fifth region, the second pressure is 1.0 kPa. , Design the spray container. According to this spray container design method, the spray container is designed so that the gripping pressure when the user grips the spray container 1 becomes a predetermined value. According to the study of the present inventor, when the user grips the spray container, each part of the user's finger is a container that has the above-mentioned gripping pressure, so that the gripping property of the user can be greatly improved. ..

[Second Embodiment]
Next, the spray container 2 according to the second embodiment based on the above-mentioned design method will be described with reference to FIGS. 10 and 11. FIG. 10 is a side view when the spray container 2 is visually recognized from the side surface 43 side of the container body 40. FIG. 11 is a side view when the spray container 2 is visually recognized from the rear surface 42 side of the container body 40. In the following description, the differences from the container body 20 according to the first embodiment described above will be mainly described, and the common points may be omitted.

As shown in FIG. 10, the spray container 2 includes a ejector 10 and a container body 40. Since the ejector 10 has the same configuration as the ejector 10 according to the first embodiment, the description thereof will be omitted. As shown in FIGS. 10 and 11, the container body 40 includes a front surface 41, a rear surface 42, a pair of side surfaces 43, 44, a mounting portion 45, a bottom surface 46, a first connection curved surface 47, and a second connection curved surface 48.

The front surface 41 is a surface located on the front side of the container body 40. The front surface 41 has an upper curved surface portion 41a and a lower curved surface portion 41b. As shown in FIG. 10, the upper curved surface portion 41a has a curved shape that is convex toward the rear of the container body 40 in the XZ plan view. The upper end portion of the upper curved surface portion 41a is connected to the second connecting curved surface portion 48, and the lower end portion is smoothly connected to the lower curved surface portion 41b. A ridge line may be formed between the upper end portion of the upper curved surface portion 41a and the second connecting curved surface portion 48. Further, the upper curved surface portion 41a has a curved shape that is convex toward the front of the container body 20 in the XY cross-sectional view. The radius of curvature of the upper curved surface portion 41a in the XY cross section may be, for example, 17.0 mm or more and 23.0 mm or less. The radius of curvature in the XY cross section of the upper curved surface portion 41a may be larger than the radius of curvature in the XY cross section of the second connecting curved surface 48, which will be described later. When the user grips the spray container 1 with his right hand, for example, the middle finger (third finger F3), ring finger (fourth finger F4), and little finger (fifth finger F5) of the user's right hand are on the upper curved surface portion 41a. You may make contact. Further, when the user grips the spray container 1 with his left hand, for example, the middle finger (third finger F13), ring finger (fourth finger F14) and little finger (fifth finger F15) of the user's left hand are attached to the upper curved surface portion 41a. ) May contact. As shown in FIG. 10, the lower curved surface portion 41b has a curved shape that is convex toward the front of the container body 40 in the XZ plan view. The upper end portion of the lower curved surface portion 41b is smoothly connected to the upper curved surface portion 41a, and the lower end portion is connected to the bottom surface 46.

The rear surface 42 is a surface located on the rear side (opposite side of the front surface 41 in the X direction) of the container body 40. The rear surface 42 has an upper curved surface portion 42a and a lower curved surface portion 42b. The lower end portion of the upper curved surface portion 42a is smoothly connected to the upper end portion of the lower curved surface portion 42b. Both the upper curved surface portion 41a and the lower curved surface portion 42b have a curved shape that is convex toward the rear of the container body 40 in the XZ cross-sectional view. Therefore, unlike the rear surface 22 according to the first embodiment, the rear surface 42 as a whole has a gently curved shape that is convex toward the rear of the container body 40 in the XZ cross-sectional view. The upper curved surface portion 42a and the lower curved surface portion 42b have a curved shape that is convex toward the rear of the container body 20 in the XY cross-sectional view. The radius of curvature of the curve may be, for example, 15.0 mm or more and 20.0 mm or less. When the user grips the spray container 2 with his right hand, for example, the base portion of the thumb (first finger F1) of the user's right hand may come into contact with the upper curved surface portion 42a. Further, when the user grips the spray container 2 with his / her left hand, for example, the base portion of the thumb (first finger F11) of the user's left hand may come into contact with the upper curved surface portion 42a.

The side surface 43 is a surface located on the left side of the container body 40 when the container body 40 is viewed from the rear surface 42, and the side surface 44 is located on the right side of the container body 40 when the container body 40 is viewed from the rear surface 42. It is a face. As shown in FIG. 11, the side surface 43 faces the side surface 44 in the Y direction. The side surface 43 and the side surface 44 each have a recess 43a and a recess 44a that are recessed inside the container body 40. The surfaces of the recess 43a and the recess 44a are inclined toward the inside of the container body 40 so as to be close to each other from the mounting portion 45 side toward the bottom surface 46 side, and then separated outward at the lower portion of the container body 40. It has a curved shape. When the user grips the spray container 2 with his right hand, for example, the thumb (first finger F1) of the user's right hand comes into contact with the upper part of the recess 43a, and the upper part of the recess 44a is the palm of the user's right hand. Some may come into contact. Further, when the user grips the spray container 2 with his / her left hand, for example, a part of the palm of the user's left hand comes into contact with the upper part of the recess 43a, and the thumb of the user's left hand (the first) on the upper part of the recess 44a. One finger F11) may come into contact. Since the mounting portion 45 and the bottom surface 46 have the same configurations as the mounting portion 25 and the bottom surface 26 according to the first embodiment, the description thereof will be omitted.

The first connection curved surface 47 is a surface that connects the mounting portion 45 and the rear surface 42. The first connection curved surface 47 has a curved shape that is convex toward the outside (rear) of the container body 40 in the XY cross-sectional view and the XZ cross-sectional view. The radius of curvature of the curve of the first connection curved surface 47 in the XY cross-sectional view may be, for example, 14.0 mm or more and 15.0 mm or less. In the first embodiment, the change in curvature of the connecting portion between the first connecting curved surface 27 and the upper curved surface portion 22a is small, and the surfaces are smoothly connected to each other (see FIG. 5), but in the second embodiment, , The change in curvature of the connecting portion between the first connecting curved surface 47 and the upper curved surface portion 42a is larger, and the ridgeline is formed.

The second connection curved surface 48 is a surface that connects the mounting portion 45 and the front surface 41. The second connecting curved surface 48 has a curved shape that is convex toward the outside (front) of the container body 40 in the XY cross-sectional view and the XZ cross-sectional view. The radius of curvature of the curve of the second connecting curved surface 48 in the XY cross-sectional view may be, for example, 15.0 mm or more and 17.0 mm or less. Similar to the first connecting curved surface 47, a ridge line is formed at the connecting portion between the second connecting curved surface 48 and the front surface 41.

As described above, in the spray container 2 according to this embodiment, the spray container 2 provided with the container body 40 is formed by the above-mentioned design method. That is, the second fingers F2 and F12 of the user's hand of the spray container 2 are positioned on the trigger 13 of the ejector 10, and the first fingers F1 and F11 of the hand are positioned on one of the pair of side surfaces 43 and 44. When the trigger 13 is pulled by the second fingers F2 and F12 with at least a part of the palm of the hand positioned on the upper curved portion 42a, it is placed in the first region from the tips of the first fingers F1 and F11 to the first joint. The pressure becomes 4.0 kPa or more, and the pressure applied to the second region from the first joint to the second joint of the first fingers F1 and F11 and the base of the first fingers F1 and F11 and the second fingers F2 and F12 among the palms. At least one of the pressures applied to the third region located between the base of the palm is the first pressure or less, the pressure applied to the second finger F2 of the palm, the pressure applied to the fourth region of the base of F12, and the third of the palms of the hand. When at least one of the pressures applied to the fifth region at the bases of the fingers F3 and F13 is the second pressure or higher and the first pressure indicates the pressure applied to the second region, the first pressure is 15.0 kPa. When the first pressure indicates the pressure applied to the third region, the first pressure is 19.0 kPa, and when the second pressure indicates the pressure applied to the fourth region, the second pressure is 7. When it is 0 kPa and the second pressure indicates the pressure applied to the fifth region, the second pressure is 1.0 kPa. According to the spray container 2 having such a gripping pressure, when the user grips the spray container 2, the gripping property of the user can be improved.

Hereinafter, the present invention will be described in detail with reference to Examples, but the present invention is not limited to these Examples. In the following embodiment, the gripping pressure when the user grips the spray container (container body) so that the index finger of the user is hooked on the trigger, and the sensuality (fitness, finger tightness, other than the finger) at that time. We evaluated the difficulty and overall evaluation (easy to grip).

[Example 1]
In the first embodiment, the spray container having the same shape as the spray container 1 (see FIGS. 1 to 6) according to the first embodiment described above is grasped by the right hand (see FIG. 7), and the second finger of the right hand is held. The gripping pressure of each part of the finger when the trigger was pulled by F2 was confirmed. Hereinafter, when the spray container according to the first embodiment is described, the same reference numerals as those used in the description of the first embodiment described above are used. The radius of curvature of the curve of the front surface 21 and the second connecting curved surface 28 of the container body 20 according to the first embodiment in the XY cross-sectional view is as shown in Table 1 below. Further, the radius of curvature of the curve of the rear surface 22 and the first connecting curved surface 27 of the container body 20 in the XY cross-sectional view is as shown in Table 2 below. TRUSCO NAKAYAMA Co., Ltd. "Radius Gauge 178MB, 178MC" was used to measure the radius of curvature. The measurement height H1 indicates the distance in the Z direction from the bottom surface 26 to the position where the radius of curvature is measured (see FIG. 3).

Next, a method of measuring the gripping pressure will be described. First, the sensor sheet provided in the measuring system for measuring the gripping pressure was attached to the surface of the right hand. Nitta Corporation's "Surface pressure distribution measurement system I-SCAN" was used as the measurement system, and Nitta Corporation's "Grip pressure distribution measurement system sensor sheet 4256E" was used as the sensor sheet. As described with reference to FIG. 7, the spray container 1 according to the first embodiment was grasped with the right hand. In this state, the trigger 13 was pulled by the second finger F2 of the right hand, and the gripping pressure was measured by the measuring system. The gripping pressure was measured for each region indicated by the numbers "1" to "23" in FIG. Among the measurement results, the first region A1 indicated by the number "1", the second region A2 indicated by the number "2", the third region A3 indicated by the number "8", and the fourth region indicated by the number "12". Table 7 shows the measurement results for the fifth region A5 represented by the region A4 and the number “16”.

[Example 2]
In the second embodiment, the spray container having the same shape as the spray container 2 (see FIGS. 10 and 11) according to the second embodiment described above was grasped by the right hand, and the trigger was pulled by the second finger F2 of the right hand. The gripping pressure at the time was confirmed. Hereinafter, when the spray container according to the second embodiment is described, the same reference numerals as those used in the description of the spray container 2 according to the second embodiment are used. The radius of curvature of the curve of the front surface 41 and the second connecting curved surface 48 of the container body 40 according to the second embodiment in the XY cross-sectional view is as shown in Table 3 below. Further, the radius of curvature of the curve of the rear surface 42 and the first connecting curved surface 47 of the container body 40 in the XY cross-sectional view is as shown in Table 4 below. TRUSCO NAKAYAMA Co., Ltd. "Radius Gauge 178MB, 178MC" was used to measure the radius of curvature. The measurement height H2 indicates the distance in the Z direction from the bottom surface 46 to the position where the radius of curvature is measured (see FIG. 10).

The gripping pressure in Example 2 was measured using the same measurement system as in Example 1. The first finger F1 of the right hand is positioned above the recess 43a, the second finger F2 is positioned on the trigger 13, the third finger F3 is positioned on the second connecting curved surface 48, and the fourth finger F4 and the fifth finger F5 are positioned. The spray container 1 was gripped so as to be located on the upper curved surface portion 41a. In this state, the trigger 13 was pulled by the second finger F2, and the gripping pressure was measured by the measuring system. Table 7 shows the measurement results of the pressure applied to the first region A1 to the fifth region A5.

[Comparative Example 1]
In Comparative Example 1, the spray container 3 shown in FIG. 12 was gripped with the right hand, and the gripping pressure when the trigger was pulled by the second finger F2 of the right hand was confirmed. Here, the shape of the spray container 3 used for the measurement of Comparative Example 1 will be described with reference to FIG. FIG. 12 is a side view when the spray container 3 is visually recognized from the side surface 63 side of the container body 60. The spray container 3 includes a ejector 10 and a container body 60. Since the ejector 10 has the same configuration as the ejector 10 according to the first embodiment, the description thereof will be omitted. The container body 60 includes a front surface 61, a rear surface 62, a side surface 63, a bottom surface 64, a first connection curved surface 65, and a second connection curved surface 66.

The front surface 61 is a surface located on the front side of the container body 60. Unlike the front surface 21 according to the first embodiment, the front surface 61 has a gently curved shape that is convex toward the rear of the container body 60 in the XZ cross-sectional view as a whole. Further, the front surface 61 has a curved shape that is convex toward the front of the container body 60 in the XY cross-sectional view, and is smoothly connected to the side surface 63. The rear surface 62 is a surface located on the rear side (opposite side of the front surface 61 in the X direction) of the container body 60. Unlike the rear surface 22 according to the first embodiment, the rear surface 62 as a whole has a gently curved shape that is convex toward the front of the container body 60 in the XZ cross-sectional view. Further, the rear surface 62 has a curved shape that is convex toward the rear of the container body 60 in the XY cross-sectional view, and is smoothly connected to the side surface 63.

The side surface 63 is located on the left side of the container body 60 and connects the front surface 61 and the rear surface 62. The side surface 63 has a gently curved shape that is convex toward the outside of the container body 60 in the XY cross-sectional view. The container body 60 is further provided with a side surface facing the side surface 63 in the Y direction and having a shape symmetrical with respect to the XZ plane on the right side of the container body 60 (the back side of the paper surface in FIG. 12). The container body 60 has a mounting portion (not shown) on the upper part to which the ejector 10 is mounted. Since the configuration of the mounting portion is the same as the configuration of the mounting portion 25 according to the first embodiment, the description thereof will be omitted. The bottom surface 64 has a recess (not shown) that is recessed inside the container body 60.

The first connection curved surface 65 has a curved shape that inclines downward toward the rear in the XZ cross-sectional view. The radius of curvature of the curve is larger than the radius of curvature of the first connection curved surface 27 according to the first embodiment, and the first connection curved surface 65 extends substantially linearly in the XZ cross-sectional view. The first connection curved surface 65 has a curved shape that is convex toward the outside (rear) of the container body 60 in a cross-sectional view along the XY plane. The second connecting curved surface 66 has a curved shape that inclines downward as it goes forward in the XZ cross-sectional view. The radius of curvature of the curve is larger than the radius of curvature of the second connecting curved surface 28 according to the first embodiment, and the second connecting curved surface 66 extends substantially linearly in the XZ cross-sectional view. The second connecting curved surface 66 has a curved shape that is convex toward the outside (front) of the container body 60 in a cross-sectional view along the XY plane. A corner portion is formed between the first connection curved surface 65 and the rear surface 62, and a corner portion is formed between the second connection curved surface 66 and the front surface 61.

The radius of curvature of the curve of the front surface 61 and the second connecting curved surface 66 of the container body 60 according to Comparative Example 1 in the XY cross-sectional view is as shown in Table 5 below. Further, the radius of curvature of the curve of the rear surface 62 and the first connecting curved surface 65 of the container body 60 in the XY cross-sectional view is as shown in Table 6 below. TRUSCO NAKAYAMA Co., Ltd. "Radius Gauge 178MB, 178MC" was used to measure the radius of curvature. The measurement height H3 indicates the distance in the Z direction from the bottom surface 64 to the position where the radius of curvature is measured (see FIG. 12).

The measurement of the gripping pressure when gripping the spray container 3 according to Comparative Example 1 was performed using the same measurement system as in Example 1. The first finger F1 of the right hand is positioned at the upper part of the side surface 63, the second finger F2 is positioned at the trigger 13, the third finger F3 is positioned at the second connection curved surface 66, and the fourth finger F4 and the fifth finger F5 are positioned. The spray container 2 was gripped so as to be located at the upper part of the front surface 61. In this state, the trigger 13 was pulled by the second finger F2, and the gripping pressure was measured by the measuring system. Table 7 shows the measurement results of the pressure applied to the first region A1 to the fifth region A5.

[Comparative Example 2]
In Comparative Example 2, the spray container 4 shown in FIG. 13 was gripped with the right hand, and the gripping pressure when the trigger was pulled by the second finger F2 of the right hand was confirmed. Here, the spray container 4 according to Comparative Example 2 will be described with reference to FIG. FIG. 13 is a side view when the spray container 4 is visually recognized from the side surface 73 side of the container body 60. The spray container 4 includes a ejector 10 and a container body 70. Since the ejector 10 has the same configuration as the ejector 10 according to the first embodiment, the description thereof will be omitted. The container body 70 includes a front surface 71, a rear surface 72, a side surface 73, a bottom surface 74, a first connection curved surface 75, and a second connection curved surface 76.

The front surface 71 is a surface located on the front side of the container body 70. Unlike the front surface 21 according to the first embodiment, the front surface 71 extends so as to have a gently curved shape that is convex toward the rear of the container body 70 in the XZ cross-sectional view. Further, the front surface 71 extends linearly along the Y direction in the XY cross-sectional view. That is, in the cross-sectional view along the XY plane, the front surface 71 intersects the side surface 73 at an angle close to a right angle. The rear surface 72 is a surface located on the rear side of the container body 70 (opposite side of the front surface 71 in the X direction). Unlike the rear surface 22 according to the first embodiment, the rear surface 72 extends so as to have a gently curved shape that is convex toward the front of the container body 70 in the XZ cross-sectional view. Further, the rear surface 72 extends linearly along the Y direction in the XY cross-sectional view. That is, in the cross-sectional view along the XY plane, the rear surface 72 intersects the side surface 73 at an angle close to a right angle.

The side surface 73 is located on the left side of the container body 70, and connects the front surface 71 and the rear surface 72. The side surface 73 has a gently curved shape that is convex toward the outside of the container body 70 in the XY cross-sectional view. The container body 70 is further provided with a side surface facing the side surface 73 in the Y direction and having a shape symmetrical with respect to the XZ plane on the right side of the container body 70 (the back side of the paper surface in FIG. 12). The container body 70 has a mounting portion (not shown) on the upper part to which the ejector 10 is mounted. Since the configuration of the mounting portion is the same as the configuration of the mounting portion 25 according to the first embodiment, the description thereof will be omitted. The bottom surface 74 has a recess that is recessed inside the container body 70.

The first connection curved surface 75 connects the mounting portion and the rear surface 72. The region of the first connecting curved surface 75 near the mounting portion is formed in a planar shape, and is provided so as to incline slightly downward toward the rear. The rear end of the first connection curved surface 75 has a curved surface shape that is convex toward the outside (rear) of the container body 70, and is connected to the upper end of the rear surface 72. The second connection curved surface 76 connects the mounting portion and the front surface 71. The region of the second connecting curved surface 76 near the mounting portion is formed in a planar shape, and is provided so as to incline slightly downward toward the front. The front end portion of the second connection curved surface 76 has a curved surface shape that is convex toward the outside (front) of the container body 70, and is connected to the upper end portion of the front surface 71. A corner portion is formed between the first connecting curved surface 75 and the rear surface 72, and a corner portion is formed between the second connecting curved surface 76 and the front surface 71.

The measurement of the gripping pressure when gripping the spray container 4 according to Comparative Example 2 was performed using the same measurement system as in Example 1. The first finger F1 of the right hand is positioned on the upper part of the side surface 73, the second finger F2 is positioned on the trigger 13, and the third finger F3, the fourth finger F4 and the fifth finger F5 are positioned on the upper part of the front surface 71. The spray container 4 was grasped. In this state, the trigger 13 was pulled by the second finger F2, and the gripping pressure was measured by the measuring system.

Table 7 below shows a summary of the gripping pressures in Example 1, Example 2, Comparative Example 1 and Comparative Example 2. In addition, the sensory evaluation results when gripping the spray container according to Example 1, Example 2, Comparative Example 1 and Comparative Example 2 having such a gripping pressure are also shown. The sensory evaluation was made on a scale of 1 to 5 for "fitness", "finger stubbornness", "non-finger stubbornness" and "comprehensive evaluation (easy to grip)". In the 5-grade evaluation, 5 is "good / easy", 4 is "slightly good / slightly easy", 3 is "neither", 2 is "slightly bad / slightly difficult", and 1 is "bad / difficult". , The higher the evaluation score, the better the grip. The number of evaluations is 20, and Table 7 shows the average value of the evaluation points of each person.

The hand size of each evaluator was measured based on JIS Z8500: 2002 (ergonomics-basic anthropometry for design). In addition, based on AIST Japanese hand size data, the size of 25% ile or less is "small", the size of hands larger than 25 ile and smaller than 75 ile is "medium", and the size of hands larger than 75 ile is "large". The distribution was as follows, and the evaluator was a person with a hand size according to the normal distribution.
[Short]
4 people for large (174 mm or more), 14 people for medium (165 mm to 173 mm), 2 people for small (164 mm or less) [hand width]
6 people for large (69 mm or more), 13 people for medium (68 mm to 65 mm), 1 person for small (64 mm or less) [second finger length]
Large (77 mm or more) 2 people, medium (76 mm to 72 mm) 12 people, small (71 mm or less) 5 people

As shown in Table 7 above, in Example 1 and Example 2, the value of the sensory evaluation when the user gripped the spray container was significantly higher than that in Comparative Example 1 and Comparative Example 2. In particular, it was confirmed that Example 1 was significantly improved in all items of fit, finger tightness, non-finger tightness, and comprehensive evaluation as compared with Comparative Example 2. It can be seen that the value of the sensory evaluation correlates with the value of the gripping pressure, and the value of the gripping pressure represents the ease of gripping.

1,2 ... spray container, 10 ... ejector, 13 ... trigger, 14 ... spout, 20,40 ... container body, 21,41 ... front surface, 21a, 41a ... upper curved surface, 22,42 ... rear surface, 22a, 42a ... Upper curved surface portion, 23, 24, 43, 44 ... Side surface, 23a, 24a, 43a, 44a ... Recessed portion, 25, 45 ... Mounting portion, 26, 46 ... Bottom surface, 27, 47 ... First connecting curved surface, 28, 48 ... 2nd connection curved surface, F1, F11 ... 1st finger, F2, F12 ... 2nd finger, F3, F13 ... 3rd finger, F4, F14 ... 4th finger, F5, F15 ... 5th finger, P1, P2 …vertex.

Claims (4)

A container body that can store liquids and
An ejector attached to the container body for ejecting the liquid, and
It is a spray container equipped with
The container body is
The front surface located on the ejection side of the ejector,
The front surface and the rear surface located on the opposite side in the first direction,
A pair of side surfaces facing each other in a second direction intersecting the first direction and connecting the front surface and the rear surface.
The mounting part to which the ejector is mounted and
A bottom surface located on the opposite side of the mounting portion in the first direction and the third direction intersecting the second direction.
A first connecting curved surface having a curved surface shape that is convex toward the outside of the container body and connecting the mounting portion and the rear surface thereof.
Have,
The rear surface has a first curve whose cross-sectional shape along the first direction and the second direction is convex toward the rear of the container body, and a vertical cross-sectional shape along the first direction and the third direction of the container. The first curved surface portion defined by the second curved surface convex toward the front of the main body is included in the first connecting curved surface side.
The apex of the second curve is a spray container located closer to the mounting portion than the central position of the container body in the third direction. At least one of the pair of side surfaces has a recess recessed inside the container body.
The spray container according to claim 1. The container body has a curved surface shape that is convex toward the outside of the container body, and further has a second connecting curved surface that connects the mounting portion and the front surface.
The spray container according to claim 1 or 2. A container body that can store liquids and
An ejector attached to the container body for ejecting the liquid, and
It is a spray container equipped with
The container body is
The front surface located on the ejection side of the ejector,
The front surface and the rear surface located on the opposite side in the first direction,
A pair of side surfaces facing each other in a second direction intersecting the first direction and connecting the front surface and the rear surface.
The mounting part to which the ejector is mounted and
It has a bottom surface located on the opposite side of the mounting portion in the first direction and the third direction intersecting the second direction.
The second finger of the user's hand of the spray container is positioned on the trigger of the ejector, the first finger of the hand is positioned on one of the pair of side surfaces, and at least a part of the palm of the hand is on the rear surface. When pulling the trigger with the second finger in the state of being positioned at
The pressure applied to the first region from the tip of the first finger to the first joint becomes 4.0 kPa or more, and the pressure becomes 4.0 kPa or more.
The pressure applied to the second region from the first joint to the second joint of the first finger and the pressure applied to the third region of the palm located between the base of the first finger and the base of the second finger. At least one of them is below the first pressure,
At least one of the pressure applied to the fourth region of the base of the second finger of the palm and the pressure applied to the fifth region of the base of the third finger of the hand of the palm becomes the second pressure or more.
When the first pressure indicates the pressure applied to the second region, the first pressure is 15.0 kPa.
When the first pressure indicates the pressure applied to the third region, the first pressure is 19.0 kPa.
When the second pressure indicates the pressure applied to the fourth region, the second pressure is 7.0 kPa.
When the second pressure indicates the pressure applied to the fifth region, the second pressure is 1.0 kPa, the spray container.

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