Measuring Cap

Abstract

To provide a measuring cap that can be easily rotated without accompanying a pain and can contribute to reducing the amount of resin.SOLUTION: A measuring cap of the invention has a cylindrical measuring cylindrical part with a lid, and an installation part protruding radially from the outer peripheral surface of the measuring cylindrical part and attachable to a container body, the measuring cylindrical part has a cylindrical part extending in the circumferential direction and two finger hooking wall portions located at one end of the cylindrical part and extending radially outward from the outer peripheral surface of the cylindrical part. The two finger hooking wall portions have: a side surface extending radially outward from the outer peripheral surface of the cylindrical portion when viewed in the central axial direction; and an outer surface that extends in the circumferential direction and connects the radially outer both end parts of the side surfaces, when viewed in the central axial direction. In the angles of intersection between the tangential lines in contact with the center in the circumferential direction of the outer surface and the side surfaces when viewed in the center direction, assuming that the smaller angle is θ, the width of the finger hooking wall portion in the circumferential direction is W, and the maximum diameter of the cylindrical portion is A, then W / A<0.9, and θ≤90° when 0.13≤W / A, and θ≤60°when W / A<0.13.SELECTED DRAWING: Figure 1

Description

[Technical Field]

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

[0002] In the case of containers containing liquid detergents such as liquid laundry detergents, bleaches, and fabric softeners, resin measuring caps with a measuring function are used to ensure that the appropriate amount of the contents of the container is used (see, for example, Patent Document 1). This type of measuring cap is provided with a measuring display section that displays symbols including figures such as scales and letters to confirm the amount of contents dispensed.

[0003] The measuring cap described in Patent Document 1 is screwed onto or unscrewed from the container body by gripping the knurled portion formed on the outer peripheral surface of the cap body and rotating it in the circumferential direction. In the measuring cap described in Patent Document 1, the protrusions that make up the knurled portion are small, which causes the problem that the cap is slippery when gripped with wet hands.

[0004] Therefore, for example, Patent Document 2 discloses that, in order to make it easier to open or reseal a screw cap, at least two convex ridges sufficient to catch on the opener's fingers when opening are formed symmetrically about the center of the screw cap on the outer peripheral side of the screw cap. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2012-144280 [Patent Document 2] Japanese Patent Application Laid-Open No. 2013-220819 Summary of the Invention [Problem to be solved by the invention]

[0006] If the ridges disclosed in Patent Document 2 are provided on the outer peripheral surface of the measuring cap disclosed in Patent Document 1, slippage when gripped and rotated can be prevented, but if gripped tightly, the ridges may dig into the fingers, causing pain. Possible means for preventing pain include increasing the width of the ridges or providing curved surfaces at the tips of the ridges.

[0007] However, increasing the width of the protrusion increases the amount of resin material used, resulting in increased costs. In addition, localized thickness increases the likelihood of molding defects known as sink marks. Furthermore, if a curved surface is provided at the tip of the protrusion, the area available for finger placement when gripping the cap will be reduced, making it difficult to open and close the measuring cap. Additionally, in recent years, there has been a demand to reduce the amount of resin material used in order to reduce the environmental impact.

[0008] The present invention has been made in consideration of the above points, and aims to provide a measuring cap that can be easily rotated without causing pain and that can contribute to reducing the amount of resin used. [Means for solving the problem]

[0009] According to a first aspect of the present invention, there is provided a measuring cap that is detachably attached to a container body that stores contents, the measuring cap having a cylindrical measuring tube portion having a lid portion at one end side in a central axis direction along a central axis, and an attachment portion that protrudes from an outer peripheral surface of the measuring tube portion in a radial direction perpendicular to the central axis direction and is attachable to the container body, the measuring tube portion having a cylindrical portion extending in a circumferential direction centered on the central axis, and two finger hook wall portions that are located on the one end side of the attachment portion and extend radially outward from the outer peripheral surface of the cylindrical portion, and each of the two finger hook wall portions is located on the outer side of the cylindrical portion when viewed in the central axis direction. The measuring cap has a side extending radially outward from a peripheral surface, and an outer surface that extends circumferentially and connects the radially outer ends of the side surface when viewed in the central axis direction, wherein the smaller of the intersecting angles between the side surface and a tangent to the circumferential center of the outer surface when viewed in the central axis direction is θ, the circumferential width of the finger hook wall portion is W (mm), and the maximum diameter of the cylindrical portion is A (mm), then θ≦90° when W / A<0.9 and 0.13≦W / A, and θ≦60° when W / A<0.13. [Effects of the Invention]

[0010] The present invention provides a measuring cap that can be easily rotated without causing pain and that can contribute to reducing the amount of resin used. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is a vertical cross-sectional view of the top of a container 1 having a measuring cap 4 according to a first embodiment of the present invention in an upright state. [Figure 2] FIG. 2 is an external perspective view of the measuring cap 4. [Figure 3] 2 is a plan view of the measuring cap 4 as seen from above in the central axis direction. FIG. [Figure 4] FIG. 2 is a plan view showing a schematic configuration of the aligning / feeding device 100. [Figure 5] FIG. 10 is a perspective view of the appearance of a measuring cap 4 according to a second embodiment. [Figure 6]FIG. 10 is a plan view of a measuring cap 4 according to a second embodiment. [Figure 7] FIG. 10 is a diagram showing a first pattern of gripping states of the measuring cap. [Figure 8] FIG. 10 is a diagram showing a second pattern of gripping states of the measuring cap. [Figure 9] FIG. 10 is a diagram showing a third pattern of the holding state of the measuring cap. [Figure 10] FIG. 2 is a vertical cross-sectional view showing a modified example of the container 1. DETAILED DESCRIPTION OF THE INVENTION

[0012] Hereinafter, an embodiment of a measuring cap of the present invention will be described with reference to FIGS. The following embodiment shows one aspect of the present invention, does not limit the present invention, and can be modified as desired within the scope of the technical concept of the present invention. In addition, in the following drawings, the scale and number of each structure are different from the actual structure to make each configuration easier to understand.

[0013] [First embodiment of measuring cap 4] 1 is a vertical cross-sectional view of the top of a container 1 having a measuring cap 4 according to the first embodiment in an upright position. The container 1 with measuring cap comprises a container body 2 for storing the contents, and a measuring cap 4 that is coaxially and removably attached to a mouth 3 located at the top of the container body 2. The mouth 3 of the container body 2 is composed of an inner mouth 5 of the hollow container body 2 and a nozzle cap 6 attached to this inner mouth 5.

[0014] The container body 2 is integrally formed by blow molding using, for example, an olefin-based synthetic resin such as polyethylene, polyethylene terephthalate, etc. The container body 2 has a storage space 2a for storing contents. Examples of contents include laundry detergent (liquid or powder), liquid bleach, fabric softener, dishwashing detergent, liquid mouthwash, etc., with liquid laundry detergent being preferred.

[0015] The inner opening 5 has a cylindrical shape extending in the vertical direction, and opens the storage space 2a of the container body 2 upward in the upright state. A nozzle cap 6 having a generally cylindrical shape with a bottom is attached from above to this inner opening 5, and a measuring cap 4 having a generally cylindrical shape with a lid is attached from above to this nozzle cap 6. The inner opening 5, nozzle cap 6, and measuring cap 20 share a central axis (cap axis) C extending in the vertical direction in the upright state.

[0016] In the following description, the direction along the central axis C will be referred to as the central axis direction, the direction perpendicular to the central axis C as the radial direction, and the direction around the axis C as the circumferential direction, as appropriate. In addition, one end side in the central axis direction, the side where the measuring cap 4 of the container 1 is provided, will be referred to as the upper side (above the bottle), and the side where the container body 2 is provided will be referred to as the lower side (below the bottle).

[0017] The nozzle cap 6 has a body-side threaded cylindrical portion 7 that screws onto the outer periphery of the inner mouth portion 5, an annular body-side flange portion 8 that extends radially inward from the end of the body-side threaded cylindrical portion 7 above the bottle, a bottomed cylindrical insertion portion 9 that bulges downward from the inner periphery of the body-side flange portion 8 and fits into the inner mouth portion 5, a nozzle 10 that extends above the bottle from one inclined surface of the V-shaped bottom wall portion 9a of the insertion portion 9, a cylindrical outer mouth portion 11 that stands above the bottle from the cap radial middle portion of the body-side flange portion 8, and a cylindrical body-side seal portion 12 that hangs down below the bottle from the cap radial middle portion of the body-side flange portion 8.

[0018] The nozzle cap 6 is integrally formed by injection molding using an olefin-based synthetic resin such as polypropylene.

[0019] Nozzle 10 extends upward from bottom wall portion 9a. Nozzle 10 is formed in the shape of a gutter with a U-shaped cross section. The interior of nozzle 10, which has a U-shaped cross section, communicates with storage space 2a of container body 2 via communication portion 9b formed in bottom wall portion 9a.

[0020] The measuring cap 4 is formed by injection molding using an olefin-based thermoplastic synthetic resin such as polypropylene. When polypropylene resin is used, it has excellent moldability and content compatibility, and since it can be molded using a transparent resin, a measuring cap with excellent measuring properties can be manufactured.

[0021] The measuring cap 4 has a capped cylindrical measuring tube portion 41 that fits into the insertion portion 9 from above the bottle to accommodate the nozzle 10, a cylindrical screw-fitting portion 42 that is spaced apart on the outer periphery of the cap axial middle portion of the measuring tube portion 41 and screws into the outer opening portion 11 of the nozzle cap 6, a flange portion 43 that protrudes radially outward from midway along the central axis C of the measuring tube portion 41 and is connected to the upper edge of the screw-fitting portion 42, and a cylindrical cap side seal portion 25 that hangs down from the cap radially inside of the flange portion 43 toward the bottom of the bottle.

[0022] A knurled portion (not shown) is formed around the entire outer circumferential surface of the screw portion 42. The knurled portion has a plurality of ridges that are arranged at regular intervals in the circumferential direction and extend substantially parallel to the central axis C.

[0023] The flange portion 43 and the screw portion 42 form an attachment portion of the measuring cap 4 that can be attached to the container body 2.

[0024] The body-side seal portion 12 liquid-tightly seals the inner opening 5 of the mouth portion 3 from the radially inside. The cap-side seal portion 25 liquid-tightly seals the outer opening 11 of the nozzle cap 6 from the radially inside.

[0025] Fig. 2 is a perspective view of the appearance of the measuring cap 4. Fig. 3 is a plan view of the measuring cap 4 as seen from above in the central axis direction. 2, the measuring tube portion 41 has a cylindrical portion 50 and a finger hook wall portion 51. The cylindrical portion 50 has a circular cross section that extends in the circumferential direction. The upper end of the cylindrical portion 50 is located at the position of the lid portion 44, and the lower end is located below the flange portion 43.

[0026] The cylindrical portion 50 has an index area 60 on the outer circumferential surface of which a measurement index is provided. The index area 60 may be provided on the inner circumferential surface of the cylindrical portion 50, or on both the outer circumferential surface and the inner circumferential surface of the cylindrical portion 50.

[0027] The indicator areas 60 are provided at the same circumferential positions on both the upper and lower sides of the flange portion 43 of the cylindrical portion 50. The indicator areas 60 are arranged at positions spaced apart from the finger hook wall portion 51 in the circumferential direction.

[0028] The measurement indicators include at least one of letters such as numbers and figures such as lines as symbols showing information about the measurement of the contents. Specifically, the measurement indicators of this embodiment include, as examples, numbers or marks showing the amount of content poured into the measuring tube portion 41, lines showing the liquid level corresponding to the poured amount, and arrow-shaped figures highlighting the position of the liquid level line.

[0029] If the measurement indicator is a number, it is drawn so that it can be seen as a number from the inside of the measuring tube portion 41 (it is drawn as a mirror image from the outside). If the measurement indicator is a mark, it refers to a symbol registered in Shift JIS, such as a heart or musical note. The measurement line may be arranged around part of the circumference or the entire circumference. The measurement indicator can be formed, for example, by printing using laser light irradiation, printing using an inkjet method, or by transferring letters, symbols, lines, etc. formed on a mold used when injection molding the measuring cap 4.

[0030] The finger hook wall portion 51 is a portion where fingers are hooked when rotating the measuring cap 4 in the circumferential direction relative to the container body 2 to remove or attach it. Two finger hook walls 51 are arranged on either side of the central axis C in the radial direction. Each of the finger hook walls 51 extends radially outward from the outer circumferential surface of the cylindrical portion 50. Each of the finger hook walls 51 extends upward from the flange portion 43.

[0031] 1 and 2, the upper end of finger hook wall portion 51 has a curved surface that gradually curves downward as it extends radially outward. By providing a curved surface radially outward at the upper side of finger hook wall portion 51, pain in the hand when placing a finger on finger hook wall portion 51 from the radially outward side can be reduced.

[0032] As shown in FIG. 3, the finger-hanging wall portion 51 has a side surface 52 and an outer surface 53 when viewed from above in the central axis direction. The side surfaces 52 extend radially outward from the outer peripheral surface of the cylindrical portion 50. The side surfaces 52 are provided on both sides of the circumferential center J of the finger hook wall portion 51. The outer surfaces 53 extend circumferentially and connect the radially outer ends of the side surfaces 52. When viewed from above in the central axis direction, the outer surfaces 53 have an arc shape.

[0033] That is, finger hook wall portion 51 has a U-shaped outline when viewed from above in the central axis direction. The outline of finger hook wall portion 51 can be a semicircular or U-shaped outline in addition to a U-shape.

[0034] The finger-hook wall 51 of the above-described shape allows the user to apply pressure with the thumb or index finger, making the measuring cap 4 easy to open and close and preventing pain in the fingers. This also enables stable production. Furthermore, providing the finger-hook wall 51 on the measuring tube 41 can guide and regulate the way the measuring cap 4 is gripped after opening.

[0035] When viewed in the central axis direction, the smaller of the intersecting angles between tangent 55, which is in contact with outer surface 53 at circumferential center J, and side surface 52, is defined as θ. The circumferential width of finger hook wall portion 51 is defined as W (mm). The maximum diameter of cylindrical portion 50 is defined as A (mm). In this case, W / A<0.9. Furthermore, when 0.13≦W / A, θ≦90°. When W / A<0.13, θ≦60°.

[0036] During product production, the measuring caps 4 are aligned in the circumferential direction by an alignment feeder, and then fed to a capping machine via a conveying chute. FIG. 4 is a plan view showing a schematic configuration of the aligning and feeding device 100. As shown in FIG. As shown in FIG. 4, the aligning / feeding device 100 has a conveying path 101 for continuously conveying the measuring caps 4 and a pair of guides 102 provided above the conveying path 101. The pair of guides 102 extend along the conveying path 101 and are spaced apart from each other. The distance between the pair of guides 102 is set to be slightly larger than the maximum diameter A of the cylindrical portion 50. The measuring cap 4 is conveyed along the conveying path 101 with the cylindrical portion 50 held radially by the pair of guides 102.

[0037] The circumferential position of the measuring cap 4 is not defined, and the measuring cap 4 is inserted randomly between the pair of guides 102. Therefore, if the W / A value exceeds 1.0 and the circumferential width W of the finger hook wall portion 51 is greater than the maximum diameter A of the cylindrical portion 50, the measuring cap 4 will not be inserted between the pair of guides 102 and will not be able to be supplied to the subsequent process. Furthermore, if the W / A value is 0.9 or greater, the measuring cap 4 is unlikely to be inserted between the pair of guides 102, which will result in unstable supply to the subsequent process and reduced production efficiency. Therefore, by making W / A<0.9, stable supply to the subsequent process during product production is possible.

[0038] By setting θ≦90° when 0.13≦W / A and θ≦60° when W / A<0.13, the usability of the measuring cap 4 can be improved, including ease of opening and closing, painlessness, and measuring ability. The lower limit of the angle θ is 45°.

[0039] The circumferential width W of the finger-hanging wall portion 51 is preferably 3 mm or more and 20 mm or less, and more preferably 3 mm or more and 18 mm or less. The maximum diameter A of the cylindrical portion 50 is preferably 20 mm or more and 40 mm or less, and more preferably 25 mm or more and 35 mm or less.

[0040] The above-described index area 60 is preferably disposed at an angle of 30° or more in the circumferential direction from the circumferential center J of the finger hook wall portion 51. That is, as shown in Fig. 3, the angle θ2 from the circumferential center J of the finger hook wall portion 51 to the end of the index area 60 is preferably 30° or more. By setting the angle θ2 to 30° or more, the gripping posture during measurement can be smoothly guided to a position that makes measurement easy, resulting in excellent gripping properties during measurement.

[0041] Furthermore, the indicator region 60 is preferably arranged within a range in which the angle θ3 in the circumferential direction is 70° or less, with the center being a position that is offset by 90° from the center J of the finger hook wall portion 51 in the circumferential direction.

[0042] The radially outer end of the finger-hanging wall portion 51 is preferably positioned radially inward relative to the radially outer end of the flange portion 43 . By positioning the radially outer end of the finger hook wall portion 51 radially inward relative to the radially outer end of the flange portion 43, the container volume can be reduced, improving transportation efficiency. Furthermore, the amount of resin material required for molding can be reduced, contributing to a reduction in environmental impact. Furthermore, the measuring cap 4 is less likely to crack or be damaged when dropped, either alone or when attached to the container body 2, or during transportation.

[0043] As described above, the measuring cap 4 of this embodiment can be easily rotated without causing pain, which contributes to reducing the amount of resin used and the environmental impact.

[0044] [Second embodiment of measuring cap 4] Next, a second embodiment of the measuring cap 4 will be described with reference to FIGS. In these figures, the same elements as those in the first embodiment shown in Figures 1 to 4 are denoted by the same reference numerals, and the description thereof will be omitted. Also, in Figure 5, the indicator region 60 is not shown.

[0045] 5 and 6, the finger hook wall 51 of the measuring cap 4 of the second embodiment has a hollow portion 54. The hollow portion 54 is recessed from the upper side to the lower side in the central axis direction. Furthermore, the outer surface 53 of the finger hook wall 51 of this embodiment has a semicircular shape that contacts the side surface 52. That is, the finger hook wall 51 has a U-shaped outline when viewed from the upper side in the central axis direction.

[0046] Moreover, the finger hook wall portion 51 of this embodiment has the following configuration. That is, the finger hook wall portion 51 has a first rib 52A and a second rib 53A. As shown in Fig. 6, the first ribs 52A are arranged on both sides of the circumferential center, spaced apart from each other with cavities 54 interposed therebetween. The first ribs 52A extend upward from the flange portion 43. The first ribs 52A extend radially outward from the outer circumferential surface of the cylindrical portion 50. The first ribs 52A have side surfaces 52.

[0047] The second rib 53A extends upward from the flange portion 43. The second rib 53A connects the ends of the pair of first ribs 52A. When viewed from above in the central axis direction, the second rib 53A has a semicircular shape that contacts the first rib 52A. The second rib 53A is disposed away from the cylindrical portion 50 via a hollow portion 54. The second rib 53A has an outer surface 53. That is, when viewed from above in the central axis direction, the finger hook wall portion 51 is formed in a U-shape in which the first rib 52A and the second rib 53A are connected. The other configurations are the same as those of the first embodiment.

[0048] In addition to achieving the same effects and advantages as those of the first embodiment, the measuring cap 4 of this embodiment provides a cavity 54 in the finger hook wall 51, thereby reducing the amount of resin material required during molding and contributing to a reduction in environmental impact. Furthermore, in this embodiment, the reduction in the amount of resin material used shortens the cooling time during injection molding, thereby speeding up the molding cycle and increasing the production volume per unit time. Furthermore, in this embodiment, because the cavity 54 is open on the top, there is no need to use a mold release method that is prone to overrun in the mold used to mold the measuring cap 4, which contributes to reducing mold costs and improving production efficiency. [Example]

[0049] The present invention will be described in detail below with reference to examples. However, the present invention is not limited to the following examples and can be practiced with appropriate modifications within the scope of the present invention.

[0050] (Examples 1 to 4, Comparative Examples 1 to 3) A sample of the measuring cap was fabricated using a 3D printer according to the specifications shown in [Table 1]. As shown in the shape item of Table 1, the measuring cap of the first embodiment shown in FIGS. 2 and 3 was used as the sample of Example 1. In contrast to the sample of Example 1, a measuring cap with a finger-hook wall width W of 4 mm was used as a sample of Example 2. A measuring cap in which the minimum width W of the finger-hook wall portion was set to 3 mm and the angle θ was set to 60° was used as a sample of Example 3 in comparison with the sample of Example 1. The measuring cap of the second embodiment shown in FIGS. 5 and 6 was used as a sample of Example 4.

[0051] In contrast to the sample of Example 1, a measuring cap with a finger-hook wall width W of 3 mm was used as a sample of Comparative Example 1. A measuring cap having a pair of ribs extending radially outward and having a width W of 2 mm forming a finger-hook wall portion was used as a sample of Comparative Example 2. The measuring cap disclosed in JP 2014-009026 A was used as the sample of Comparative Example 3.

[0052] [Evaluation items] Each sample of Examples 1 to 4 and Comparative Examples 1 to 3 was evaluated based on seven evaluation criteria: "Ease of opening the cap," "No pain to fingers when opening," "Ease of closing the cap," "No pain to fingers when closing the cap," "Ease of gripping when measuring," "Production efficiency," and "Expected amount of resin."

[0053] [Evaluation method] A usability survey was conducted on nine employees, both male and female, using samples from Examples 1 to 4 and Comparative Examples 1 to 3. The evaluation involved opening and closing the cap, and participants were asked to respond to seven evaluation items (ease of opening the cap, lack of pain in the fingers when opening, ease of closing the cap, lack of pain in the fingers when closing the cap, and ease of gripping when measuring).

[0054] The evaluation method was a sensory evaluation on a 7-point scale. A score of 4.0 or above, which indicates no problems with the usability of the container, was given a good "OK" rating (○), and a score of less than 4.0 was given a poor "NG" rating (average score of the 7-point scale (n=9)). The liquid detergent composition used for the measurements was Top Super NANOX (liquid detergent for clothes) manufactured by Lion Corporation. <Evaluation criteria> 7 points: Very good. 6 points: Good. 5 points: Fairly good. 4 points: Neither. 3 points: Somewhat poor. 2 points: Bad. 1 point: Very bad.

[0055] In addition, the production efficiency was evaluated using sample products at the applicant's production base. The expected resin amount for each shape was calculated by multiplying the volume of the shape (calculated from CAD data) by the specific gravity of polypropylene (0.91). For the expected resin amount for each shape, if it was 10g or less it was given an OK rating of "○", meaning it was good, and if it exceeded 10g it was given an NG rating of "×", meaning it was bad. The evaluation results are shown below. The numerical values ​​are the average scores (n=9) on a 7-point scale. Regarding production efficiency, 〇 is good, × is high defect frequency.

[0056] [Table 1]

[0057] As shown in Table 1, the samples of Examples 1 to 4, in which θ≦90° when W / A<0.9 and 0.13≦W / A, and θ≦60° when W / A<0.13, received good ratings in all of the following categories: "ease of opening the cap," "no pain to the fingers when opening," "ease of closing the cap," "no pain to the fingers when closing the cap," "ease of gripping when measuring," "production efficiency," and "estimated amount of resin."

[0058] On the other hand, the samples of Comparative Examples 1 and 2, which do not satisfy θ≦60° when W / A<0.13, did not receive good ratings for "ease of opening the cap," "lack of pain in the fingers when opening," "ease of closing the cap," and "lack of pain in the fingers when closing the cap."

[0059] When observing how the evaluators held the measuring cap, the following three patterns were observed. Pattern 1: Pinch with your fingertips. In pattern 1, as shown in Figure 7, one of the cylindrical portion and the finger hook wall portion is grasped with the ball of the distal joint of the thumb, the cylindrical portion is grasped with the ball of the distal joint of the index finger and the side of the distal joint is hooked on the other finger hook wall portion, and the side of the distal joint of the middle finger is placed against the cylindrical portion. In pattern 1, the measuring cap is opened and closed by rotating the wrist while grasping it with the fingertips.

[0060] Pattern 2: Pinch deeper than Pattern 1. In pattern 2, as shown in Figure 8, the cylindrical part is grasped with the pad of the distal part of the thumb, the pad of the middle part is pressed against the finger-hook wall, and the cylindrical part is grasped with the pad of the middle part of the index finger, and the side of the middle part is hooked on the other side of the finger-hook wall. In pattern 2, as in pattern 1, the measuring cap is opened and closed by rotating the wrist while holding it with the fingertips.

[0061] Pattern 3: Hold in the palm of your hand. Pattern 3, as shown in Figure 9, is a grip where the palm of the hand wraps around the cylindrical part and the finger rest of the measuring cap. Pattern 3 is used by people with relatively small hands or weak muscles. In pattern 3, the measuring cap is opened and closed by rotating the elbow.

[0062] In a questionnaire given to the evaluators, those who gripped the sample of Comparative Example 1 in patterns 1 and 2 reported pain in their thumbs, and those who gripped the sample in pattern 3 reported pain in their little fingers. Next, when the gripping state of Pattern 1 for other cap shapes was observed, it was confirmed that the contact area between the thumb and the wall portion was wider in the samples of Example 1 and Example 31 than in the sample of Comparative Example 1. When the cap was gripped with the same force, the sample of Comparative Example 1 had a narrower contact area with the cap, and the reaction force from the cap per area was high, making it more likely to cause pain. On the other hand, the samples of Example 2 and Example 4 had a wider contact area, which is thought to distribute the reaction force from the cap and make it less likely to cause pain, and the same is thought to be true for the gripping state of Pattern 3.

[0063] Furthermore, the sample of Comparative Example 3, which did not satisfy the requirement of W / A<0.9, did not receive a favorable evaluation for production efficiency. Furthermore, the sample of Comparative Example 3 did not receive a favorable evaluation for the "estimated resin amount," and did not achieve a satisfactory result for its contribution to reducing environmental impact.

[0064] From the above evaluation, it was confirmed that widening the contact area between the finger wall and the fingers is an effective way to reduce the risk of pain in the fingers when opening and closing the metering cap. It was also confirmed that an effective way to widen the contact area between the finger wall and the fingers is when W / A<0.9 and 0.13≦W / A, and when W / A<0.13, θ≦90°, and when θ≦60°.

[0065] While the preferred embodiments of the present invention have been described above with reference to the accompanying drawings, it goes without saying that the present invention is not limited to these examples. The shapes and combinations of the components shown in the above examples are merely examples, and various modifications can be made based on design requirements, etc., without departing from the spirit of the present invention.

[0066] For example, in the above embodiment, the measuring cap 4 has an index region 60, but this is not limiting. Even if the measuring cap 4 does not have an index region 60, by applying the present invention, it can be easily rotated without causing pain, which can contribute to reducing the amount of resin.

[0067] Furthermore, in the above embodiment, the configuration in which the nozzle cap 6 is detachably attached to the container body 2 and the measuring cap 4 is detachably attached to the nozzle cap 6 is exemplified, but the present invention is not limited to this configuration. For example, as shown in FIG. 10, instead of the nozzle cap, an inner plug 16 having a nozzle 10 and an insertion portion 9 and a tubular portion 31 that fits into the inner opening 5 of the opening 3 may be used. When this configuration is adopted, the threaded portion 42 of the measuring cap 4 is threaded onto the outer periphery of the inner opening portion 5 .

[0068] In this way, even in a configuration in which the inner plug 16 is used instead of the nozzle cap, the same functions and effects as those of the above-described embodiment can be obtained. In the measuring cap 4 shown in FIG. 10, the finger-holding wall portion 51 has a hollowed-out portion 51a that faces the internal space of the cylindrical portion 50. By providing the finger-hanging wall portion 51 with the lightening portion 51a, the amount of resin can be further reduced, thereby contributing to reducing the environmental load. [Explanation of symbols]

[0069] 2...Container body, 4...Measuring cap, 41...Measuring tube portion, 42...Screw portion (mounting portion), 43...Flange portion (mounting portion), 44...Lid portion, 50...Cylindrical portion, 51...Finger hook wall portion, 52...Side surface, 52A...First rib, 53A...Second rib, 53...Outer surface, 54...Cavity portion, 55...Tangent line, 60...Indicator area, A...Maximum diameter of cylindrical portion, C...Central axis (axis), W...Circumferential width of hook wall portion, θ...Angle (intersection angle)

Claims

1. A measuring cap that is detachably attached to a container body that stores contents, a cylindrical measuring tube portion having a lid portion on one end side along a central axis; a mounting portion that protrudes from an outer peripheral surface of the measuring cylindrical portion in a radial direction perpendicular to the central axis direction and is mountable to the container body; and The measuring tube portion is a cylindrical portion extending in a circumferential direction around the central axis, with one end side in the central axis direction extending from the position of the lid portion toward the other end side in the central axis direction, with an attachment portion sandwiched between them; two finger hook wall portions located closer to the one end than the mounting portion and extending radially outward from an outer circumferential surface of the cylindrical portion; and Each of the two finger wall portions is a side surface extending radially outward from an outer circumferential surface of the cylindrical portion as viewed in the central axis direction; an outer surface extending in the circumferential direction and connecting radially outer ends of the side surfaces when viewed in the central axis direction; and θ is the smaller of the angles of intersection between the side surface and a line segment that passes through the center of the circumferential direction of the outer surface and is perpendicular to a line connecting the center and the central axis, as viewed in the central axis direction; The width of the finger hook wall portion in the circumferential direction is W (mm), When viewed in the central axis direction, the maximum diameter of the outer circumferential surface of the cylindrical portion on one end side of the mounting portion in the central axis direction is defined as A (mm). W / A<0.9, When 0.13≦W / A, θ≦90°; A measuring cap characterized in that θ≦60° when W / A<0.

13.

2. The width W is 3 mm or more and 20 mm or less, The maximum diameter A is 20 mm or more and 40 mm or less. The measuring cap of claim 1 .

3. the cylindrical portion has an index area in which a measurement index is provided, the indicator area is disposed at a distance of 30° or more in the circumferential direction from the center of the finger hook wall portion in the circumferential direction; The measuring cap according to claim 1 or 2.

4. The indicator area is disposed within a range of 70° in the circumferential direction, with the center being a position that is shifted by 90° from the center of the circumferential direction of the finger hook wall portion. The measuring cap of claim 3.

5. an end portion of the finger hook wall portion located on the outer side in the radial direction is located on the inner side in the radial direction than an end portion of the attachment portion located on the outer side in the radial direction; A measuring cap according to any one of claims 1 to 4.

6. The finger hook wall portion has a hollow portion recessed from the one end side to the other end side in the central axis direction. A measuring cap according to any one of claims 1 to 5.

7. The finger hanging wall portion is a pair of first ribs disposed on both sides of the circumferential center and spaced apart from each other, extending radially outward from the outer circumferential surface of the cylindrical portion, and having the side surfaces; a second rib connecting end portions of the pair of first ribs and having the outer surface; having A measuring cap according to any one of claims 1 to 6.

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