JP7692808B2 - Bottle with handle - Google Patents

Description

The present invention relates to a bottle with a handle.

Conventionally, there have been known bottles with handles, such as that shown in Patent Document 1 below, in which the body of a bottle has a central axis that extends in the vertical direction, and an attachment recess that is recessed toward the front and opens toward the rear in the radial direction, and a handle is attached to the attachment recess.

JP 2001-048189 A

However, with the conventional bottles with handles, especially as bottles have become thinner in recent years, there is a risk that the inner surface of the mounting recess will deform when the handle is lifted, making the handle more likely to wobble relative to the bottle.

The present invention provides a bottle with a handle that can prevent the handle from wobbling relative to the bottle when the handle is lifted.

The present invention employs the following means to solve the above problems. That is, the bottle with handle of the present invention has a body of a bottle having a central axis extending in the vertical direction, and a mounting recess is provided in the body of the bottle, the mounting recess being recessed toward the front and opening toward the rear in the radial direction, a handle is attached to the mounting recess, and the inner surface of the mounting recess includes an upper surface facing downward, a lower surface facing upward, a bottom surface facing rearward and connecting front ends of the upper surface and the lower surface, and a lower connecting surface extending downward from the outer periphery of the lower surface and connected to the outer periphery of the body, and the handle is attached to a fixing plate fixed to the bottom surface of the mounting recess and extending in the vertical direction, and a lower connecting surface provided behind the fixing plate and extending in the vertical direction. the lower connecting surface comprises a vertical step surface extending downward from the outer circumferential edge of the lower surface and facing rearward, and a horizontal step surface extending rearward from the lower end of the vertical step surface and facing upward, the lower connecting plate protruding rearward from the vertical step surface while being spaced upward from the horizontal step surface, and the vertical step surface extending straight in the vertical direction over the entire vertical length .

The lower connecting plate of the handle protrudes rearward from the vertical step surface while being spaced upward from the horizontal step surface. Even if the lower connecting plate tries to displace rearward around the upper connecting plate when the handle is lifted, the vertical step surface exerts a rib effect and supports the lower connecting plate from below, making it difficult for the handle to wobble relative to the bottle.

The inner surface of the mounting recess extends radially outward as it moves upward from the outer circumferential edge of the upper surface and has an upper connecting surface connected to the outer circumferential surface of the upper end of the body, and the upper connecting surface may be provided with a pair of vertical grooves that extend upward from the outer circumferential edge of the upper surface and sandwich the upper connecting plate in the left-right direction perpendicular to the front-to-back direction when viewed from the top-to-bottom direction.

The upper surface of the mounting recess is provided with a pair of vertical grooves that sandwich the upper connecting plate in the left-right direction, which increases the rigidity of the portion of the upper surface of the mounting recess that is located between the pair of vertical grooves and fixes the upper connecting plate, ensuring that the handle is less likely to wobble relative to the bottle.

The inner surface of the mounting recess may include an upper connection surface that extends radially outward from the outer periphery of the upper surface and is connected to the outer periphery of the body.

The inner surface of the mounting recess extends radially outward as it moves upward from the outer periphery of the upper surface of the mounting recess, and has an upper connection surface connected to the outer periphery of the body, so that the stretch ratio at the upper connection surface during blow molding of the bottle is kept lower than the stretch ratio at the outer periphery of the body. Therefore, when blow molding a bottle with the handle as an insert, it is possible to prevent voids caused by overstretching from occurring on the upper connection surface connected to the upper surface of the mounting recess, which is difficult to stretch when the upper connecting plate of the handle is fixed.

A reinforcing rib may be formed on the upper connection surface at a portion adjacent to the upper connecting plate in the vertical direction.

A reinforcing rib is formed on the upper connection surface of the mounting recess in the area adjacent to the upper connecting plate of the handle in the vertical direction, increasing the rigidity of this area, making it possible to make the upper connection surface less likely to deform when the handle is lifted, and ensuring that the handle is less likely to wobble relative to the bottle.

This invention prevents the handle from wobbling relative to the bottle.

1 is a side view of a handle-equipped bottle shown as one embodiment of the present invention, viewed from the left and right. FIG. 1 is a side view of a handle-equipped bottle shown as one embodiment of the present invention, viewed from the rear. FIG.

Hereinafter, one embodiment of a bottle with a handle 1 will be described with reference to the drawings.
1 and 2, the bottle with handle 1 includes a bottle 10 and a handle 11. The internal volume of the bottle 10 is, for example, 1 liter or more.
The bottle 10 comprises a mouth portion 12, a shoulder portion 13, a body portion 14 and a bottom portion 15, and these portions 12 to 15 are connected in this order with their respective central axes positioned on a common axis.

Hereinafter, the common axis is referred to as the central axis O, the mouth 12 side along the central axis O is referred to as the upper side, the bottom 15 side is referred to as the lower side, and the direction along the central axis O is referred to as the up-down direction. When viewed from the up-down direction, the direction that intersects with the central axis O is referred to as the radial direction, and the direction going around the central axis O is referred to as the circumferential direction. In the radial direction, the side on which the handle 11 is provided with respect to the central axis O is referred to as the rear side, the opposite side of the handle 11 that is sandwiched radially between the central axis O is referred to as the front side, and the direction perpendicular to the front-rear direction when viewed from the up-down direction is referred to as the left-right direction.

In the illustrated example, the mouth 12, shoulder 13, body 14, and bottom 15 each have a circular cross-sectional shape perpendicular to the central axis O. The handle 11 is formed in an annular shape that opens in the left and right directions.

An upper circumferential groove 17 that extends continuously over the entire circumferential length is formed at the connection between the shoulder 13 and the body 14. The upper end 14a of the body 14 includes a rear portion that is vertically sandwiched between the upper circumferential groove 17 and a mounting recess 16, which will be described later. The radius of the rear portion of the upper end 14a of the body 14 is smaller than the radius of the other portions.
A lower circumferential groove 18 that extends continuously over the entire circumferential length is formed at the connection between the body portion 14 and the bottom portion 15. The lower end portion 14b of the body portion 14 is connected to the lower circumferential groove 18 from above. The upper end portion 14a and the lower end portion 14b of the body portion 14 are the portions with the largest diameters.

The body 14 is provided with an attachment recess 16 that is recessed toward the front and opens toward the rear. The attachment recess 16 is integrally open toward the rear and in the left-right direction. The attachment recess 16 is provided in the upper part of the body 14. The left-right center of the attachment recess 16 is located in the left-right center of the outer circumferential surface of the body 14 that faces toward the rear.

The inner surface of the mounting recess 16 has an upper surface 21, a lower surface 22, a bottom surface 23, a lower connection surface 24, and an upper connection surface 25.

The upper surface 21 faces downward, and the lower surface 22 faces upward. The lower surface 22 is located below the upper surface 21 and faces opposite to the upper surface 21 in the vertical direction.
The bottom surface 23 faces rearward and connects the front ends of the upper surface 21 and the lower surface 22. The bottom surface 23 has a curved shape that is concave toward the front when viewed in a cross section along the up-down direction and the front-rear direction, and has a curved shape that is convex toward the rear when viewed in a cross section along the radial direction.
The lower connecting surface 24 extends downward from the outer peripheral edge of the lower surface 22 and is connected to the outer peripheral surface of the body portion 14 .
The upper connection surface 25 extends radially outward as it moves upward from the outer circumferential edge of the upper surface 21 and is connected to the outer circumferential surface of the upper end portion 14 a of the body portion 14 .

A reinforcing groove 21a is formed on the outer peripheral edge of the upper surface 21, which is curved to protrude rearward when viewed from below. When viewed from below, the reinforcing groove 21a is symmetrical with respect to a straight line that passes through the left-right center of the mounting recess 16 and extends radially. When viewed from below, the top of the reinforcing groove 21a that protrudes rearward is located in the left-right center of the mounting recess 16.

The lower connection surface 24 includes a vertical step surface 26 that extends downward from the outer peripheral edge of the lower surface 22 and faces rearward, and a horizontal step surface 27 that extends rearward from the lower end of the vertical step surface 26 and faces upward.
The vertical step surface 26 extends straight in the vertical direction, and the horizontal step surface 27 extends downward toward the rear. The vertical step surface 26 extends straight in the left-right direction in a cross section perpendicular to the vertical direction. The vertical step surface 26 may be curved or bent to extend in the left-right direction in a cross section perpendicular to the vertical direction. The upper end of the vertical step surface 26 is formed in a curved shape that protrudes toward the rear. The vertical step surface 26 and the horizontal step surface 27 extend in the left-right direction. The left-right size of each of the vertical step surface 26 and the horizontal step surface 27 is more than half the left-right size of the mounting recess 16. When viewed from the rear, the vertical step surface 26 and the horizontal step surface 27 are symmetrical with respect to a straight line that passes through the center of the mounting recess 16 in the left-right direction and extends in the up-down direction. The vertical step surface 26 is smaller in size than the horizontal step surface 27 in the front-rear direction.
The vertical step surface 26 may extend downward toward the rear or toward the front, and may be straight or curved when viewed in cross section along the up-down and front-to-rear directions.
The horizontal step surface 27 may extend straight in the front-to-rear direction, or may extend upward as it extends rearward, and may present a straight line or a curved line when viewed in cross section along the up-down and front-to-rear directions.

The handle 11 is attached to the mounting recess 16. The handle 11 is provided in the center of the mounting recess 16 in the left-right direction.
The handle 11 includes a fixed plate 31, a handle plate 32, an upper connecting plate 33, and a lower connecting plate 34.

The fixed plate 31 is formed in a plate shape that has a long rectangular shape in the vertical direction when viewed from the front-to-back direction. When viewed from the left-to-right direction, the fixed plate 31 is curved so that it protrudes forward. The fixed plate 31 is fixed to the bottom surface 23 of the mounting recess 16. The front part of the fixed plate 31 is embedded in the wall that forms the bottom surface 23 of the mounting recess 16 over its entire vertical length, and the rear part protrudes rearward from the bottom surface 23 of the mounting recess 16 over its entire vertical length.

The handle plate 32 is provided behind the fixed plate 31. The handle plate 32 is formed in a rectangular plate shape that is long in the vertical direction when viewed from the front-rear direction. The handle plate 32 extends straight in the vertical direction. The handle plate 32 is located behind the upper surface 21 and the lower surface 22 of the mounting recess 16. The rear surface of the handle plate 32 is located at the same radial position as the part of the outer peripheral surface of the upper end 14a of the body 14 that is located in the same circumferential position as the handle plate 32, and is located radially inward from the part of the outer peripheral surface of the lower end 14b of the body 14 that is located in the same circumferential position as the handle plate 32. The upper and lower ends of the handle plate 32 each extend forward as they move outward in the vertical direction. The upper end of the handle plate 32 is located below the upper connection surface 25 of the mounting recess 16 and faces the upper and lower directions.

The upper connecting plate 33 connects the upper ends of the fixed plate 31 and the handle plate 32, and is fixed to the upper surface 21 of the mounting recess 16. The upper connecting plate 33 is embedded in the wall that forms the upper surface 21 of the mounting recess 16 over its entire length in the front-to-rear direction, excluding the rear end. The rear end of the upper connecting plate 33 protrudes rearward from the upper surface 21 of the mounting recess 16. The upper connecting plate 33 penetrates the top of the reinforcing groove 21a in the front-to-rear direction.

The lower connecting plate 34 connects the lower ends of the fixed plate 31 and the handle plate 32, and is fixed to the underside 22 of the mounting recess 16. The lower connecting plate 34 is embedded in the wall that forms the underside 22 of the mounting recess 16 over its entire length in the front-to-rear direction excluding the rear end. The rear end of the lower connecting plate 34 protrudes rearward from the underside 22 of the mounting recess 16.
The lower connecting plate 34 protrudes rearward from the vertical step surface 26 while being spaced upward from the horizontal step surface 27. The lower connecting plate 34 protrudes rearward from the upper end of the vertical step surface 26. The rear end of the lower connecting plate 34 is positioned above the horizontal step surface 27 and faces the horizontal step surface 27 in the vertical direction.

Here, a pair of first vertical grooves (vertical grooves) 28 are provided on the upper surface 21 of the mounting recess 16, sandwiching the upper connecting plate 33 in the left-right direction. The first vertical grooves 28 reach the outer peripheral surface of the upper end 14a of the body 14 via the upper connection surface 25. The pair of first vertical grooves 28 extend in a direction in which the distance between them in the left-right direction becomes wider as they move from the upper surface 21 side of the mounting recess 16 toward the upper end 14a side of the body 14. The first vertical grooves 28 communicate with the upper circumferential groove 17 and the reinforcing groove 21a.

The upper surface 21 of the mounting recess 16 is provided with a pair of second vertical grooves 29 that sandwich the pair of first vertical grooves 28 in the left-right direction. The second vertical grooves 29 reach the outer peripheral surface of the upper end 14a of the body 14 via the upper connection surface 25. The pair of second vertical grooves 29 extend in a direction in which the left-right spacing becomes wider as they move from the upper surface 21 side of the mounting recess 16 toward the upper end 14a side of the body 14. The second vertical grooves 29 communicate with the upper circumferential groove 17 and the reinforcing groove 21a. The second vertical grooves 29 open at the circumferential end of the reinforcing groove 21a. The groove widths of the second vertical grooves 29 and the first vertical grooves 28 are equal to each other. When viewed from the rear, the inclination angles of the second vertical grooves 29 and the first vertical grooves 28 with respect to the central axis O are equal to each other.

A reinforcing rib 25a is formed on the upper connection surface 25 of the mounting recess 16, in a portion adjacent to the upper connecting plate 33 of the handle 11 in the vertical direction. The reinforcing rib 25a is a groove extending in the left-right direction. A plurality of reinforcing ribs 25a are formed at intervals in the vertical direction. The reinforcing rib 25a is located above the upper end of the handle plate 32 and faces the upper end in the vertical direction.

The bottle with handle 1 is formed by blow molding a cylindrical preform with a bottom in a cavity into which the handle 11 is inserted, forming the bottle 10 and at the same time attaching the handle 11 to the attachment recess 16 of the bottle 10. The preform and the handle 11 are formed in advance by injection molding.

The aforementioned cavity is provided between the overlapping surfaces of a pair of molding dies that are arranged so that they can come into contact with and separate from each other. The front ends of the pair of molding dies are connected to each other via a rotation shaft that extends in the vertical direction, and the pair of molding dies rotate around the rotation shaft, causing the overlapping surfaces to come into contact with and separate from each other, opening and closing the cavity. As a result, the parting line is located in the left-right center of the front-facing and rear-facing portions of the outer circumferential surface of the body 14, and extends in the vertical direction.

As described above, in the bottle with handle 1 according to this embodiment, the lower connecting plate 34 of the handle 11 protrudes rearward from the vertical step surface 26 while being spaced upward from the horizontal step surface 27. Therefore, even if the lower connecting plate 34 tries to displace rearward around the upper connecting plate 33 when the handle 11 is lifted, the vertical step surface 26 exerts a rib effect and supports the lower connecting plate 34 from below, making it difficult for the handle 11 to wobble relative to the bottle 10.

The upper surface 21 of the mounting recess 16 is provided with a pair of first vertical grooves 28 that sandwich the upper connecting plate 33 in the left-right direction. This increases the rigidity of the portion of the upper surface 21 of the mounting recess 16 that is located between the pair of first vertical grooves 28 and fixes the upper connecting plate 33, thereby ensuring that the handle 11 is less likely to wobble relative to the bottle 10.

The inner surface of the mounting recess 16 extends radially outward from the outer periphery of the upper surface 21 of the mounting recess 16 upward, and has an upper connection surface 25 connected to the outer periphery of the upper end 14a of the body 14, so that the stretch ratio at the upper connection surface 25 is kept lower than the stretch ratio at the outer periphery of the body 14 during blow molding of the bottle 10. Therefore, when blow molding the bottle 10 with the handle 11 as an insert, it is possible to prevent voids caused by overstretching from occurring on the upper connection surface 25 connected to the upper surface 21 of the mounting recess 16, which is difficult to stretch when the upper connecting plate 33 of the handle 11 is fixed.

In this embodiment, the radius of the rear portion of the upper end portion 14a of the body portion 14, which is sandwiched vertically between the upper circumferential groove 17 and the mounting recess 16, is smaller than the radius of the other portions, so that it is possible to prevent the occurrence of voids due to overstretching in the rear portion of the upper end portion 14a of the body portion 14.

On the upper connection surface 25 of the mounting recess 16, a reinforcing rib 25a is formed in the portion adjacent to the upper connecting plate 33 of the handle 11 in the vertical direction, increasing the rigidity of this portion. This makes it possible to make the upper connection surface 25 less likely to deform when the handle 11 is lifted, and ensures that the handle 11 is less likely to wobble relative to the bottle 10.

The technical scope of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

For example, the first vertical groove 28, the second vertical groove 29 and the reinforcing groove 21a do not have to be provided on the upper surface 21 of the mounting recess 16.
The mounting recess 16 does not need to have the upper connection surface 25 .
The upper connection surface 25 does not necessarily need to be provided with the reinforcing rib 25a.
The radius of the upper end 14a of the body 14 may be the same over the entire circumferential length.

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

REFERENCE SIGNS LIST 1 Bottle with handle 10 Bottle 11 Handle 14 Body 16 Mounting recess 21 Upper surface 22 Lower surface 23 Bottom surface 24 Lower connection surface 25 Upper connection surface 25a Reinforcing rib 26 Vertical step surface 27 Horizontal step surface 28 First vertical groove (vertical groove)
31 Fixed plate 32 Handle plate 33 Upper connecting plate 34 Lower connecting plate O Center axis

Claims (4)

The bottle has a central axis extending in the up-down direction, and a mounting recess is provided in the body of the bottle, the mounting recess being recessed toward the front and opening toward the rear in the radial direction.
A handle is attached to the mounting recess,
The inner surface of the mounting recess is
an upper surface facing downward;
an underside facing upward;
a bottom surface facing rearward and connecting front ends of the upper surface and the lower surface;
A lower connection surface extends downward from the outer circumferential edge of the lower surface and is connected to the outer circumferential surface of the body portion,
The handle is
a fixing plate that is fixed to a bottom surface of the mounting recess and extends in a vertical direction;
A handle plate extending in the vertical direction and provided behind the fixed plate;
an upper connecting plate that connects upper ends of the fixing plate and the handle plate to each other and is fixed to an upper surface of the mounting recess;
a lower connecting plate that connects the lower ends of the fixing plate and the handle plate to each other and is fixed to a lower surface of the mounting recess,
The lower connection surface is
A vertical step surface extending downward from the outer periphery of the lower surface and facing rearward;
A horizontal step surface extending rearward from a lower end of the vertical step surface and facing upward,
The lower connecting plate protrudes rearward from the vertical step surface while being spaced upward from the horizontal step surface ,
The vertical step surface extends straight in the vertical direction over the entire length of the bottle with a handle. The inner surface of the mounting recess includes an upper connection surface that extends radially outward from the outer circumferential edge of the upper surface and is connected to the outer circumferential surface of the upper end portion of the body portion,
A bottle with a handle as described in claim 1, wherein the upper connection surface has a pair of vertical grooves extending upward from the outer peripheral edge of the upper surface and sandwiching the upper connecting plate in the left-right direction perpendicular to the front-to-back direction when viewed from the top-to-bottom direction. The bottle with a handle as described in claim 1, wherein the inner surface of the mounting recess extends radially outward as it moves upward from the outer circumferential edge of the upper surface and has an upper connecting surface connected to the outer circumferential surface of the body portion. 4. The bottle with a handle according to claim 2 , wherein a reinforcing rib is formed on the upper connection surface at a portion adjacent to the upper connecting plate in the vertical direction.

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