Bottle with cap

Abstract

To provide a large-capacity, thin bottle with a cap, which can prevent a situation in which a body is greatly dented by the force of a user's hand when the bottle is lifted by hand, causing contents to fly out of an opening, and is easy to hold stably even for women or elderly people with weak grip strength, and is easy to hold and use even in a large capacity.SOLUTION: Provided is a large-capacity, thin bottle with a cap in which a pair of right and left convex rib parts 61 that extend continuously in a vertical direction and project outward in a cross-sectional view are provided on each of a front surface 41 and a rear surface 42 of the body part 4.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a large-capacity bottle with a cap made of synthetic resin, which has an internal capacity of 700 ml or more and whose contents can be poured out from the mouth by removing the cap from the top mouth and tilting the container by holding the body. [Background technology]

[0002] Conventionally, as for this type of bottle, as shown in Patent Document 1, for example, bottles have been proposed in which grooves about 1 to 1.5 mm deep are provided in a Y-shape on the top and bottom of the left and right side surfaces, or in the horizontal direction on the top and bottom of the front and back surfaces, to serve as guides for folding the bottle so that the user can crush it after use (see Patent Document 1).Since such bottles are thin, with a minimum wall thickness of 0.35 mm or less, the user can easily fold and crush the bottle after use using the grooves as guide lines, and the weight of the bottle itself can be reduced, which also reduces material costs.

[0003] However, if such a large-capacity bottle with a heavier-than-normal cap is constructed to be thin, unlike a pump-type bottle, there is a problem that when a user lifts it by hand to pour, the body of the bottle will be significantly depressed by the force of the user's hand, causing the contents to forcefully fly out of the opening. Also, even if the weight of the bottle itself can be reduced, the large content volume makes it unavoidable that the bottle as a whole will be heavier than normal, which creates the problem that such a large-capacity, heavy bottle is difficult to hold and use, especially for women and elderly people who have weak grip strength.

[0004] Similarly, in thin, large-capacity bottles with caps, proposals have been made to provide multiple concave / convex ribs extending in a circumferential direction around the body to improve the strength of the body (see, for example, Patent Documents 2 and 3). However, bottles with such ribs have an uneven surface formed around the entire circumference of the body, which poses a problem in that when information about the contents, manufacturer, logos, etc. are displayed by printing or shrink labeling, the unevenness of the display surface makes it difficult to see. The body is the most important part for such display surface.

[0005] Furthermore, when a shrink label is applied to an uneven surface, it tends to stretch, particularly along the inner surface of the grooves, causing the label to wrinkle and distort the display, and as it stretches and becomes thinner, it also becomes weaker.In addition, since these grooves are areas that are susceptible to pressure from the user's fingertips, there is a risk that the label may break at that point.

[0006] Furthermore, there are two main known materials for shrink labels: polyethylene terephthalate (PET) resin and polystyrene (PS) resin. PET resin is relatively strong, while PS resin is relatively wrinkle-resistant and looks good. However, as mentioned above, many large-volume, thin bottles have a structure that makes them prone to large dents and pressure from fingertips, so in reality, most bottles are made of PET resin, which means that PS resin labels cannot be used. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] Design Registration No. 1464710 [Patent Document 2] Japanese Patent Application Publication No. 2018-8752 [Patent Document 3] Japanese Patent Application Laid-Open No. 2011-235948 Summary of the Invention [Problem to be solved by the invention]

[0008] In view of the above-mentioned circumstances, the present invention aims to solve the problem of providing a large-capacity, thin bottle with a cap that can prevent a situation in which the body of the bottle is significantly dented by the force of the user's hand when the bottle is lifted by hand, causing the contents to fly out of the mouth; that can be easily held securely even by women or elderly people with weak grip strength; that is easy to hold and use even with a large capacity; and that also makes it easy to use a shrink label made of PS resin. [Means for solving the problem]

[0009] The present invention includes the following inventions. (1) A bottle with a cap made of synthetic resin with an internal capacity of 700 ml or more, in which the contents can be poured out from the top by removing the cap from the top opening and tilting the container by holding the body, and which is constructed to be thin with a minimum body thickness of 0.35 mm or less, and which has a pair of left and right convex ridges on the front and back of the body that protrude outward in a mountain-like shape in cross section and extend continuously vertically.

[0010] (2) A bottle with a cap as described in (1), in which a concave surface is formed between the apexes of the pair of left and right convex ribs, extending vertically in a shape that protrudes inward in a gentle arc shape in cross section.

[0011] (3) The bottle with a cap according to (2), wherein the depth of the concave surface is 2.5 mm or less. Here, the "depth of the concave surface" refers to the maximum distance in the front-to-rear direction of the bottle from each apex of the left and right ridge portions to the bottom of the concave surface (if the distances are different between the left and right sides, the greater distance).

[0012] (4) A bottle with a cap as described in (1), in which a pair of upper and lower groove portions extending further horizontally to both the left and right side surfaces are provided on the front and rear surfaces of the body at an upper position near the shoulder and a lower position near the bottom, respectively, and the upper and lower ends of the convex rib portions are arranged so that they face the upper and lower groove portions, respectively.

[0013] (5) The bottle with a cap according to (4), wherein the depth of the groove portion projecting inward is 2 mm or more.

[0014] (6) A bottle with a cap as described in (1), in which an inclined C-surface portion extending to the side surface is formed at the left and right outer corners of each of the convex ribs, and the width between the C-surface portions at the front and rear of the side surface is 35 to 55 mm.

[0015] (7) The bottle with a cap according to (1), wherein a shrink label is attached to the body portion in a height region having the ridge portion.

[0016] (8) The bottle with a cap according to (7), wherein the shrink label is made of polystyrene (PS) resin or a mixed resin of polystyrene (PS) resin and polyethylene terephthalate (PET) resin. [Effects of the Invention]

[0017] According to the capped bottle of the present invention, even if the bottle is constructed to be thin, even if it is a large-capacity bottle with an internal capacity of 700 ml or more and heavier than usual, the presence of the pair of left and right convex ridges on the front and back surfaces maintains the strength of the body, preventing a situation in which the body is significantly dented by the force of the user's hand when lifting it, causing the contents to spill out of the spout. Of course, the thin design also reduces material costs.

[0018] Furthermore, the ridges function as hooks for the user's thumb and index finger when holding the bottle, making it easy for even women or elderly people with weak grip strength to hold securely. The bottle is easy to hold even with a large capacity, and since the grip strength is small, the bottle is even less likely to develop dents, making it very easy to use. Because dents are less likely to develop, shrink labels made of PS resin can also be used. Furthermore, when the bottle is crushed after use, the front and rear surfaces of the body are deformed to come closer together, so the ridges do not hinder deformation during crushing.

[0019] Furthermore, if a concave surface is formed between the tops of the pair of left and right ridges, extending vertically in a gently arched shape in cross section, it is less likely to be deformed by the force of the user's hand, and this more reliably prevents the contents from flying out of the opening. Also, the tips of the fingers hanging over the tops of the ridges fit into the concave surface, making it easier to hold and making the bottle even easier to hold.

[0020] A concave depth of 2.0 mm or less is sufficient to prevent deformation and make the product easier to hold, but if it is deeper than 2.5 mm, problems may arise in that when a shrink label is placed on the surface or patterns, brand names, logos, etc. are directly printed on the surface, the display will be distorted and will not look good. Therefore, it is preferable to set the depth to 2.5 mm or less.

[0021] Furthermore, a pair of upper and lower grooves extending further laterally to both the left and right side surfaces are provided on the front and rear surfaces of the body, respectively, at an upper position near the shoulder and a lower position near the bottom, and the upper and lower ends of the ridges are arranged so that they face the upper and lower grooves, respectively.When the bottle is crushed after use, the upper and lower grooves function as guide grooves to help the shoulder and bottom fold toward the body, and the ridges, which may hinder deformation, are arranged between the upper and lower grooves so as not to intersect with these grooves, thereby maintaining ease of crushing.In particular, when the shrink label is applied, positioning the upper and lower ends of the label in the grooves ensures that they adhere firmly to each other, making it easier to maintain a stable position without shifting or rotating up and down.

[0022] Here, if the depth of the inward projection of the recessed groove is 2 mm or more, the folding guide action is more reliable, and the bag becomes more likely to collapse under pressure.

[0023] Furthermore, in bottles where the corners of the bottle on the left and right outer sides of each of the convex ribs have inclined C-surface portions that extend to the side faces, and the width between the C-surface portions at the front and back of the side faces is 35 to 55 mm, when trying to grasp the bottle with one hand from the right or left side, the bases of the thumb and index finger will each follow the C-surface portions, allowing for a comfortable grip, and the first joints of the thumb and index finger will rest on the right or left front and back convex ribs, respectively, making the bottle easier to hold.

[0024] Furthermore, in the case where a shrink label is attached to the height region of the body portion having the convex rib portion, the structure described above prevents the shrink label from breaking and allows the label to maintain a clean display.

[0025] In particular, the shrink label has a structure that makes it difficult to break even if it is made of polystyrene (PS) resin or a mixed resin of polystyrene (PS) resin and polyethylene terephthalate (PET) resin, and the label is less likely to wrinkle, allowing for attractive display. [Brief explanation of the drawings]

[0026] [Figure 1] 1 is a perspective view showing a bottle with a cap according to a representative embodiment of the present invention. [Figure 2] FIG. 10 is a front view showing the bottle body with the cap removed from the bottle. [Figure 3] This is a side view of the bottle body. [Figure 4] (a) is a cross-sectional view taken along line AA in Figure 2, and (b) is a cross-sectional view taken along line BB in Figure 2. [Figure 5] (a) is an explanatory diagram showing how the bottle is lifted by hand when in use, and (b) is a cross-sectional view of the bottle when in use. DETAILED DESCRIPTION OF THE INVENTION

[0027] Next, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

[0028] 1 to 4, the capped bottle 1 of the present invention is a synthetic resin bottle comprising a bottle body 10 consisting of, from the top, a mouth 2, a shoulder 3, a body 4, and a bottom 5, and a cap 11 that is screwed onto the mouth 2 to close the opening of the mouth 2. The contents can be poured out from the mouth 2 by removing the cap 11 from the upper mouth 2, holding the body 4 in one's hand, and tilting the bottle body 10. The bottle has a large internal capacity of 700 ml or more, and is configured to be thin, with the minimum wall thickness of the body 4 being 0.35 mm or less.

[0029] The contents of the bottle 1 can be a variety of things, such as mouthwash or liquid toothpaste. Furthermore, a wide variety of known synthetic resins can be used as the synthetic resin from which the bottle body 10 is made, depending on the contents, such as polyethylene terephthalate (PET) resin, polypropylene (PP) resin, or polyethylene (PE) resin. Barrier agents, pigments, and the like can also be added as needed. A wide variety of conventional methods for manufacturing synthetic resin bottles can be used to form the bottle body 10, such as blow molding.

[0030] The bottle of the present invention preferably has an internal capacity of 700 ml or more, and particularly 900 ml or more. The bottle of the present invention is a thin bottle with a minimum wall thickness of 0.35 mm or less in the body 4. In particular, the body 4 of this example is thicker on the front and back sides than on the sides, with the minimum wall thickness of the front and back sides being set to 0.35 mm or less. The average thickness of the entire body 4 is set to 0.4 mm or less, more preferably 0.35 mm or less.

[0031] The capped bottle 1 of the present invention, which is a large-capacity, thin type with a cap, is characterized in that a pair of left and right ridges 61 that protrude outward in a mountain-like shape in cross section and extend continuously in the vertical direction (up and down) are provided on each of the front surface 41 and rear surface 42 of the body 4. This type of bottle 1 maintains the strength of the body 4, preventing the body from being significantly dented by the force of the hand when lifted by hand, causing the contents to fly out of the opening with force, and the ridges 61 function as hooks for the thumb and index finger, making it easy to hold and use even for women, elderly people, and others with weak grip strength.

[0032] The bottle body 10 of this embodiment is configured based on a horizontally elongated, generally rectangular shape in cross section. That is, the widths of the front surface 41 and rear surface 42 of the body 4 are set larger than the widths of the left and right sides. The bottle is designed so that when a user holds it in their hands, they hold it from the left and right sides. However, the present invention is not limited to this in any way.

[0033] A pair of upper and lower grooves 62, 63 extending further horizontally to reach the left and right side surfaces 43, 44 are provided on the front surface 41 and rear surface 42 of the body 4 at an upper position near the shoulder 3 and a lower position near the bottom 5, respectively, and each of these grooves is provided with a groove 65 extending vertically in the center and a pair of grooves 66, 67 extending obliquely from positions near the upper and lower ends of the groove 65 toward the front and rear, respectively. These grooves 65-67 are formed in the same positions as in Patent Document 1 and function as guide grooves for folding the bottle 1 when it is crushed after use.

[0034] 1 to 3, the convex rib portion 61 is provided so that its upper and lower end portions 61b, 61c face the upper and lower recessed groove portions 62, 63, respectively. In other words, the convex rib portion 61, which may hinder deformation when crushed, is provided in a position (intermediate region R2) between the upper and lower recessed groove portions 62, 63 on the front surface 41 / rear surface 42 so as not to intersect with the recessed groove portions 62, 63, thereby maintaining ease of crushing when crushed. Since the user will grip the device with their hands in use at the position between the recessed groove portions 62, 63 (intermediate region R2), providing the convex rib portion 61 in this intermediate position is sufficient to achieve the above-mentioned ease of holding and ease of use.

[0035] In particular, as shown by the imaginary lines in Figure 1, when a shrink label 12 is attached to the body 4 as a display part, by positioning the upper and lower ends 12a, 12b of the label in the recessed grooves 62, 63, the upper and lower ends 12a, 12b of the label will be firmly attached to the body 4, and the label 12 will be able to maintain a stable posture without shifting in position in the vertical direction or rotating relative to the body 4 around its axis.

[0036] The middle region R2 of the body front surface 41 / rear surface 42 is configured to be recessed so as to be located more inward than the surfaces of the region above the groove portion 62 (upper region R1) and the region below the groove 63 (lower region R3). In other words, the apex 61a of the outermost ridge portion 61 in the middle region R2 is configured to be located more inward of the container than the surfaces of the upper region R1 and lower region R3.

[0037] On the other hand, the upper and lower regions R1, R3 are flush with each other. The recessed intermediate region R2 on the front and rear surfaces makes it easy to hold the bag from the side with one hand, regardless of its large capacity. The left and right side surfaces 43, 44 are all flat and flush across the entire vertical area, except for the recessed grooves 65-67.

[0038] The depth of inward protrusion of the grooves 62, 63 is set to 2 mm or more, which is deeper than the conventional bottles shown in Patent Document 1. In the bottle 1 according to the present invention, the presence of the ridge 61 makes the depth of the grooves 62, 63 less likely to be crushed than conventional bottles if they were set to the same depth as conventional bottles, but by setting the depth to 2 mm or more, more preferably 3 mm or more, it is possible to maintain the ease of crushing.

[0039] The convex rib portion 61 is composed of an apex 61a extending linearly in the vertical direction, an inclined surface on its inner side (inner inclined surface 610), and an outer inclined surface (outer inclined surface 611). The inner inclined surface 610 is an inwardly convex, curved inclined surface, and therefore, at the position between the apexes 61a of the pair of left and right convex ribs 61, i.e., at the center positions of the front surface 41 and the rear surface 42 of the body portion 4, concave surfaces 410 / 420 are formed that extend vertically and protrude inward in a gentle arc shape in cross section. That is, the concave surface 410 is composed of the inner inclined surfaces 610 of the left and right convex ribs 61 on the front side, and the concave surface 420 is composed of the inner inclined surfaces 610 of the left and right convex ribs 61 on the rear side.

[0040] By forming such concave surfaces 410, 420 in the central regions of the front surface 41 and the rear surface 42 of the body 4, the bottle is less likely to be dented even when force is applied by the user's hand, and it is possible to more reliably prevent the contents from flying out of the mouth 2. The reason why the bottle is less likely to be dented is that the already concave surface has little room for deformation, and in addition, the force applied by the fingertip is applied diagonally toward the handle rather than in the direction of the central axis of the bottle, i.e., toward the apex 61a of the convex rib portion 61 where the first joint is attached, making it less likely to be dented or deformed.

[0041] Furthermore, by forming such concave surfaces 410 / 420, the bottle is easier to hold. That is, as shown in Figures 5(a) and (b), when holding the body 4 with the hand 7, the portions (710, 720) of the fingers (thumb 71, index finger 72, etc.) beyond the first joints (71b, 72b) that are hooked on the top 61a of the convex rib portion 61 fit into the concave surfaces 410 / 420, making it easier to hold stably and making the bottle even easier to hold.

[0042] If the depth of the concave surface 410 / 420 is deeper than 2.5 mm, when a shrink label is placed on the surface or when a pattern, brand name, logo, etc. is directly printed on the surface, the display will be distorted and will not look clean. In particular, shrink labels stretch along the concave surface 410 / 420, so if the depth is deeper than 2.5 mm, there is a possibility that the label may wrinkle or tear depending on the material.

[0043] If the depth is 2.5 mm or less, even if a gap may occur with the shrink label, wrinkles and tears can be prevented, and the printed design can be kept in good condition. The areas near the centers of the front surface 41 and back surface 42 of the body 4, where the concave surfaces 410 / 420 are formed, are the most suitable areas for display, and it is important that the display looks good. The depth of this concave surface is more preferably set to 2.0 mm or less, and even more preferably to a value within the range of 1.4 to 1.8 mm.

[0044] The outer inclined surface 611 of each ridge portion 61 is configured as an outwardly convex curved surface. Such an outer inclined surface 611 fits comfortably around the palm of the hand, improving ease of grip. The left and right outer bottle corners 45 of each ridge portion 61, i.e., the four corners 45 between the front surface 41 / rear surface 42 and the side surface 43 / 44, are configured as inclined C-surface portions 64 that continue from the outer inclined surface 611 of each ridge portion 61 and reach the side surface 43 / 44. Because the C-surface portions 64 are located near the second joints of the thumb and index finger, a better fit is not required than with the outer inclined surface 611. Therefore, a flat tapered surface may be used instead of an outwardly convex curved surface.

[0045] In this example, the inclination of the outer inclined surface 611 in the left-right direction is smaller than the inclination of the C-face portion 64, and the outer inclined surface 611 is set to face the front or rear of the bottle. This allows the outer inclined surface 611, which forms the front / rear surface important as a display unit, to face the front / rear, allowing for a clearer and easier-to-read display. It is also preferable that the outer inclined surface 611 and the C-face portion 64 be configured as a single continuous curved surface, and in this case, it is preferable to configure the radius of curvature to gradually decrease from the top 61a toward the side surface, from the standpoint of clearer and easier-to-read display.

[0046] The apex 61a of each ridge 61 is configured as an outwardly convex, curved, rounded surface. The R value of this rounded surface is set to a value greater than the R values ​​of the rounded surfaces formed at the boundary 81 between the outer inclined surface 611 and the C-surface 64 and at the boundary 82 between the C-surface 64 and the side surface 43 / 44. This prevents the display from being distorted or the shrink label from wrinkling when printing or attaching a shrink label to the front surface 41 / rear surface 42 as a display, resulting in a neat and easy-to-read display. The ridge 61 is also made less noticeable, enhancing the design. Specifically, the R of the apex 61a is preferably set to 3.5 to 15 mm, more preferably 8 to 12 mm, and even more preferably 10 to 12 mm.

[0047] The width w1 between the front and rear C-surface portions 64 on the side surfaces 43, 44 is set to 35 to 55 mm, more preferably 40 to 50 mm, and even more preferably 43 to 48 mm. This value is based on the distance between the base of the thumb and the base of the index finger of an average person's hand. As a result, when attempting to grasp the bottle with one hand from the right or left side, as shown in FIG. 5, the pads of the thumb 71 and index finger 72 from their bases to their tips will follow the C-surface portion 64, allowing for a comfortable grip. In addition, the first joint 71b of the thumb 71 and the first joint 72b of the index finger 72 will engage with the ridge portion 61 on the front or rear side, respectively, making the bottle easier to hold.

[0048] The shrink label 12 is preferably made of polystyrene (PS) resin or a mixed resin of polystyrene (PS) resin and polyethylene terephthalate (PET) resin. PET resin shrink labels are relatively strong but wrinkle easily and have an unattractive appearance. PS resin or a mixed resin of PS and PET resins is less likely to wrinkle and has a good appearance. Because the body 4 is less likely to be dented or deformed, the shrink label 12 does not need to be strong, and can be made of PS resin or a mixed resin of PS and PET resin. In particular, if the depth of the concave surface 410 / 420 is 2.5 mm or less, the pattern, brand name, logo, and other markings on the surface of a shrink label made of PS resin or a mixed resin of PS and PET resin can be maintained in a clean state.

[0049] Although the embodiments of the present invention have been described above, the present invention is not limited to these examples, and it goes without saying that the present invention can be embodied in various forms without departing from the spirit of the present invention. [Explanation of symbols]

[0050] 1 bottle 2 Mouth 3 Shoulder 4. Torso 5 Bottom 7 moves 10 Bottle body 11 Cap 12 Shrink Label 12a top end 12b Bottom edge 41 Front 42 Rear 43, 44 Side 45 Corner 61 Convex portion 61a Top 61b, 61c end 62, 63 Concave groove part 64 C side part 65~67 Concave groove part 71 Thumb 71b First joint 72 index finger 72b First joint 81,82 Realm Department 410, 420 Concave surfaces Inclined surfaces 610 and 611 Parts 710 and 720 R1 upper area R2 Intermediate Domain R3 lower area w1

Claims

1. A bottle with a cap made of synthetic resin, with an internal capacity of 700 ml or more, in which the contents can be poured out from the mouth by removing the cap from the upper mouth and tilting the container by holding the body, The minimum wall thickness of the body is 0.35 mm or less. A pair of left and right convex ribs extending continuously in the vertical direction are provided on the front and rear surfaces of the body, respectively, in a shape that protrudes outward in a mountain-like cross section. Bottle with cap.

2. Between the apexes of the pair of left and right protruding portions, a concave surface is formed that extends in the vertical direction and protrudes inward in a gentle arch shape in cross section. The bottle with a cap according to claim 1.

3. The depth of the concave surface is 2.5 mm or less. The bottle with a cap according to claim 2.

4. A pair of upper and lower grooves extending further laterally to both left and right side surfaces are provided at an upper position near the shoulder and a lower position near the bottom on each of the front and rear surfaces of the body, The convex ridge portions are provided such that upper and lower ends thereof face the upper and lower concave groove portions, respectively. The bottle with a cap according to claim 1.

5. The depth of the recessed groove portion protruding inward is 2 mm or more. The bottle with a cap according to claim 4.

6. Each of the convex ridges has a curved surface extending to the side of the bottle at its outer corners. The width between the front and rear C-surface portions of the side surface is 35 to 55 mm. The bottle with a cap according to claim 1.

7. a shrink label is attached to the body portion in a height region having the protruding strip portion; The bottle with a cap according to claim 1.

8. 8. The bottle with a cap according to claim 7, wherein the shrink label is made of a polystyrene (PS) resin or a mixed resin of a polystyrene (PS) resin and a polyethylene terephthalate (PET) resin.

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