JP5176181B2 - Pinch grip type bottle container - Google Patents

Description

  The present invention relates to a pinch grip type bottle-shaped container in which a grip function part is integrally formed by forming recesses oppositely on both side wall portions of a body part of a large synthetic resin bottle-type container with a grip function part. .

  As a prior art of a large synthetic resin bottle-type container with a grip function part, for example, Patent Document 1 discloses that both side wall portions of the trunk part are separated from a bottle-type container in which a handle body formed separately is attached to the container body. In addition, the concave portion is formed so as to oppose to a size that allows the fingertip to penetrate substantially to the first joint, and a grip function portion composed of both the concave portion and the back wall portion located between the two concave portions is integrally formed. A pinch grip bottle-type container is described.

This type of pinch-grip bottle-type container reduces the manufacturing cost, simplifies the manufacturing process, and saves the consumption of resin material, compared to a bottle-type container configured to attach a separately formed handle to the container body. From the point of view of resource utilization, there are not only many advantages, but there is also an advantage that even if the bottle type container has a size of several liters, the gripping property is stably exhibited.
JP 2003-165518 A

  In general, the pinch grip type bottle-type container has a large storage amount, and the weight is very large when the content liquid is stored. Therefore, a very large force acts on the grip portion of the pinch grip type bottle container when the bottle container is lifted or tilted to pour out the content liquid.

  On the other hand, if the pinch grip type bottle-shaped container is formed thin in order to save resources, the thickness of the grip portion is also reduced, and the strength of the back wall portion located between both concave portions is reduced. For this reason, when the container is lifted as described above and a large force is applied to the grip portion, the back wall portion cannot withstand and deforms outwardly in a curved shape, the container cannot be stably held, and the spout is not stable. There is a risk that the liquid will become stable and difficult to pour, and the liquid content may unexpectedly jump out due to momentary deformation.

  In addition, in this type of pinch grip type bottle-type container, when the contents are dropped in a sealed state, the content liquid moves suddenly due to the impact of the drop, and the internal pressure in the bottle-type container is partially There is a problem that a so-called buckling occurs in which the concave part, which is a main component of the grip function part that is rapidly raised and relatively depressed, is partially inverted and deformed and cannot be restored to its original shape. .

  Furthermore, the flat back wall portion effectively exhibits a so-called decompression absorption function that reduces the degree of decompression by sinking and deforming within a range that does not impair the appearance when the container is in a decompressed state in a sealed state. It is also an area suitable as a part for causing the shape of the back wall, and it is necessary to design the shape of the back wall part in consideration of the gripability of the grip part, buckling, and the above-described reduced pressure absorption function.

Therefore, the present invention creates a shape of the back wall portion that constitutes the grip portion together with the concave portion, in order to exhibit stable gripping ability, buckling resistance, and reduced pressure absorption function in a pinch grip type bottle-type container. Doing this is a technical issue.

Among the means of the present invention for solving the above technical problem, the configuration of the first invention is:
A synthetic resin blow-molded product in which a concave portion is formed to be opposed to each side wall portion of the trunk portion, and a grip portion is formed by the concave portion and a back wall portion formed flat between the concave portions. In the pinch grip type bottle-type container,
In each upper region of both recesses, a finger contact recess (12) for finger contact is further formed to be opposed,
A plurality of reinforcing lateral ribs are formed at equal intervals in the upper region of the back wall portion, which is the height range where the finger rest recess is located,
The rear wall portion, the entire lower region a height range below the lower end of the finger rest recess is complementary Tsuyoyoko compared to shallow the ribs and recessed into the container inwardly in the lower region at the time of vacuum A plurality of shallow groove lateral ribs that can be deformed are formed at equal intervals .
It is said.

In the first aspect of the invention, the concave portions are formed to be opposed to each of the both side wall portions of the body portion, and the finger contact concave portions are formed to be recessed in the concave portions. A grip portion is formed with the back wall portion in between.
That is, when gripping the bottle-shaped container, the fingertip of one thumb is inserted into one finger rest, the fingertip of a finger other than the thumb is inserted into the other finger rest, and the palm of the palm is Lift the bottle-shaped container so that it touches the part, tilt it, and perform the dispensing operation of the contents.

And in the structure of said 1st invention, in the height range (henceforth an upper area | region may be mentioned) where the finger rest recessed part of the back wall part is located, several reinforcement lateral ribs are equally spaced When formed, this structure is intended to increase the surface rigidity of the back wall portion formed flat due to the reinforcing effect of the reinforcing lateral ribs, and even when the grip portion is gripped fairly strongly by hand. It is possible to effectively suppress the curved deformation of the back wall portion formed in a flat shape outwardly of the container, and when the large force is applied, the back wall portion cannot be endured and curved outwardly of the container. Deformation, the container cannot be held stably and the spout becomes unstable, making it difficult to pour. Can be used with heart.

Then, the rear wall portion, the height range below the lower end of the finger rest recess entire area (hereinafter, there is. Be referred to as a lower region), shallow are formed in comparison to the auxiliary Tsuyoyoko rib, and The structure of forming a plurality of shallow groove lateral ribs at equal intervals to allow the deformation of the lower region to the inside of the container at the time of decompression is the same as the above-mentioned reinforcing lateral rib. Although not so moderate, this lower region is intended to be used as a part for exerting a reduced pressure absorption function while suppressing a curved deformation outward of the container by holding it at a certain level. With the shallow groove lateral rib, it becomes possible to smoothly advance the depression deformation during decompression without damaging the appearance of the entire lower region, and the lower region having a large area is effectively used as a region exhibiting a decompression absorption function. Can be used.

Moreover, the shallow groove lateral rib contributes to the buckling resistance in the lower region of the back wall portion. If the bottle-shaped container falls with the contents sealed, the liquid inside moves suddenly due to the impact of the drop, and the internal pressure in the bottle-shaped container rises abruptly. By making the effect smaller than the reinforcing lateral rib,
The lower region can easily bulge and deform relatively easily, and can absorb and mitigate some increase in internal pressure when buckling occurs, and then the elastic restoring force of the shallow groove lateral rib can be reduced. Since it can act and return to the original shape before bulging, the occurrence of buckling can be effectively suppressed.

  Here, the shape and number of reinforcement ribs and shallow rib ribs should be selected as appropriate in consideration of improved gripping, reduced pressure absorption, and buckling resistance by improving the surface rigidity of the back wall. However, in the configuration of the first invention, ribs having different shapes and functions are formed in the upper region and the lower region, such as a reinforcing lateral rib in the upper region of the back wall portion and a shallow groove lateral rib in the lower region. By disposing, the back wall portion can exhibit gripping ability, reduced pressure absorption function and buckling resistance in combination.

  According to a second aspect of the invention, in the first aspect of the invention, the reinforcing lateral rib is a protruding rib protruding outward of the container.

  By using the reinforcing lateral rib as a protruding rib, it is possible to more effectively suppress the curved deformation toward the outside of the container. Of course, the shape of the reinforcing lateral rib may be a lateral groove.

Since the present invention has the above-described configuration, the following effects can be obtained.
In the first invention, the reinforcing lateral rib is provided in the height range of the back wall portion where the finger resting recess is located, and the shallow groove lateral rib having a small reinforcing effect is provided in the height range below the lower end of the finger resting recess. By forming it, it is possible to achieve the grip wall, the reduced pressure absorption function, and the buckling resistance together in the back wall portion.

  In the second aspect of the invention, by forming the reinforcing lateral rib as a protruding rib, it is possible to more effectively suppress the curved deformation outward of the container.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below along the examples with reference to the drawings.
1 to 5 show an embodiment of a pinch grip type bottle-type container of the present invention. FIG. 1 is an overall front view, FIG. 2 is an overall side view, and FIG. 3 is an overall rear view partially broken. FIG. 4 and 5 are plan sectional views taken along lines AA and BB in FIG. 2, respectively.

  This synthetic resin biaxially stretched blow molded product is a pinch grip type bottle-type container 1 having an overall height of 395 mm, a maximum diameter of 137 mm, an internal volume of 4 liters, and a bottom portion 8 that provides a seat function at the lower end. A cylindrical mouth tube portion 2 in which a thread is engraved on the outer peripheral surface is connected to the upper end of the bottomed cylindrical body portion 4 through a tapered tubular shoulder portion 3 whose diameter is reduced upward. It has a structure.

A body 4 having reinforcing circumferential ribs 7 provided at both upper and lower ends, which are the boundary between the bottom 8 and the shoulder 3, is a pair of vertically long, opposed postures slightly above the rear side of both side wall portions 5. The recessed portion 11 is formed as a depression.
Further, a finger contact recess 12 for finger contact is formed to be depressed in each upper region of both recesses 11.

The concave portion 11 of the present embodiment as a whole is a vertically long ellipse and has a height that is approximately ½ of the height of the body portion 4. Further, the finger rest recess 12 has a vertically long rectangular shape as a whole, and is formed by a total of four inclined surfaces including a recess upper end surface 12ea, a recess lower end surface 12eb, and left and right recess side surfaces 12s, and a recess bottom surface 12b. Further, a circumferential step portion 19 is continuously formed from the upper end edge of the finger contact recess 12 to the front side edge.

  In each finger contact recess 12, three recess reinforcing ribs 13 (see FIG. 2) are provided so as to cross in an arch shape (see FIG. 5). The recessed portion reinforcing ribs 13 have a function of increasing the mechanical strength of the finger rest recessed portion 12. The three recessed portion reinforcing ribs 13 divide the finger rest recessed portion 12 vertically into four sections. By this section, the fingertip of one finger can be stably positioned in any of the sections in the finger contact recess 12.

  Further, on the bottom surface 12b of the recess of each section of the finger contact recess 12 defined by the recess reinforcing rib 13, a small protrusion 15 is provided for improving the releasability of the blow-molded bottle-type container 1 from the blow mold. Forming.

A grip portion G is formed by the both finger contact recesses 12 and the back wall portion 6 located between the recesses 11 (see the white arrow in FIG. 5). The circumferential length along the direction needs to allow gripping (see FIG. 6) with the thumb positioned in one finger rest recess 12 and the other finger positioned in the other finger rest recess 12. The value is set to be substantially constant according to the size of the palm. In addition, it is advantageous that the grip portion G is positioned as close to the center of the body portion 4 as possible so that the bottle-shaped container 1 can be handled well while holding the grip portion G.

  In consideration of the above points, the shape and dimensions of the grip portion G are designed. In this embodiment, the back wall portion 6 of the body portion 4 is made flat by taking the diameter size of the body portion 4 into consideration. 4 is located in a depressed state in the central axis direction. (See Figs. 2 and 5)

Next, in the height range H1 (see FIGS. 2 and 3) corresponding to the finger rest recess 12 constituting the grip portion G in the back wall portion 6 formed in a flat shape, the protruding height (step) is 3 mm. A large number (five) of reinforcing lateral ribs 22 that are ridge ribs are provided at equal intervals.
The reinforcing lateral rib 22 increases the surface rigidity of the back wall portion 6 formed in a flat shape, and when the grip portion G is gripped with a large force by hand, the back wall portion 6 cannot withstand the bottle-shaped container 1. The bottle-shaped container 1 cannot be stably held, the spout becomes unstable and difficult to pour, and the content liquid unexpectedly jumps out to the outside due to deformation. Defects can be reliably prevented.
Further, a firm grip feeling can be obtained when the grip portion G is firmly grasped by hand.

  On the other hand, in the height range H2 (see FIGS. 2 and 3) of the back wall portion 6 below the lower end of the finger rest recess 12, the depth (step) is 1 mm, and the protruding height of the reinforcing lateral rib 22 is as follows. The shallow groove lateral ribs 23 which are relatively shallow are provided at a regular number (seven). And by this type of shallow groove lateral rib 23, the surface rigidity of the flat back wall portion 6 is not as high as that of the reinforcing lateral rib 22 described above, but is kept at a certain level and outward of the bottle-shaped container 1. In the region of a considerably large area called the height range H2 of the back wall portion 6 while suppressing the curved deformation of the back wall portion 6, the depression deformation at the time of decompression can be smoothly progressed without impairing the appearance. It can be used as a region for effectively exhibiting the absorption function.

  Further, the region in the height range H2 of the back wall portion 6 in which the shallow groove lateral rib 23 is formed is more easily bulged and deformed than the region in the height range H1 in which the reinforcing lateral rib 22 is formed. Since the partial increase in internal pressure during the generation of the ring can be absorbed to some extent, the elastic restoring force of the shallow groove lateral ribs 23 can then act to restore the original shape before bulging. The occurrence of buckling can be suppressed.

Next, in the present embodiment, the peripheral step portion 19 is connected to the inclined flat wall region 17 (see FIG. 3) located below the lower edge of the finger contact recess 12 in the vertically long oval recess 11. Thus, a crescent-shaped reinforcing step 18 is formed so as to surround the finger resting recess 12 together with the peripheral step 19 from three directions, and this reinforcing step 18 has the effect of suppressing buckling of the recess 11. Demonstrate.

  As mentioned above, although embodiment and the effect of the pinch grip type bottle-type container of this invention were described along the Example, embodiment of this invention is not limited to the said Example. For example, the capacity of the bottle-type container is not limited to 4 liters, and the shape and arrangement of the reinforcing lateral ribs 22 and the shallow groove lateral ribs 23 disposed on the back wall portion 6 such as the width and height of the steps are arranged. The number of installations and the arrangement positions in the respective height ranges H1 and H2 can be appropriately selected in consideration of the gripping property of the back wall portion 6, the reduced pressure absorption function, and the buckling resistance. It can also be groove-shaped.

  As described above, the pinch grip type bottle-type container of the present invention can exhibit the gripping ability, the reduced pressure absorption function, and the buckling resistance in the back wall portion by arranging the rib on the back wall portion. It is expected to be used widely as a large bottle type container of several liters.

1 is an overall front view showing an embodiment of the present invention. It is a whole side view of the embodiment shown in FIG. FIG. 2 is an overall rear view of the exemplary embodiment shown in FIG. It is the plane sectional view shown along the AA line in FIG. It is the plane sectional view shown along the BB line in FIG. It is explanatory drawing which showed the holding | grip state by a hand in the plane sectional view of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1; Bottle type container 2; Mouth part 3; Shoulder part 3a; Panel wall 4; Body part 5; Side wall part 6; Back wall part 7; Reinforcement peripheral rib 8; Side surface 12b; Recess bottom surface 12ea; Recess upper end surface 12eb; Recess lower end surface 13; Recess reinforcement rib 15; Small protrusion piece 17; Flat wall region 18; Reinforcement step portion 19; Rib G: Grip part H1, H2; Height range

Claims (2)

Each of the side wall portions (5) of the body portion (4) is formed to be depressed with the recesses (11) facing each other, and is formed flat between the recesses (11) and the both recesses (11). In a pinch grip type bottle-shaped container that is a blow molded product made of synthetic resin that forms a grip part (G) with the back wall part (6),
In the upper region of each of the recesses (11), a finger contact recess (12) for finger contact is further formed to be opposed,
A plurality of reinforcing lateral ribs (22) are formed at equal intervals in the upper region of the back wall portion (6), which is the height range (H1) where the finger rest recess (12) is located,
It said back wall portion (6), the whole area of the lower region is lower than the lower height range of (H2) finger rest recess (12), shallow are formed in comparison to the prior SL reinforcing transverse ribs (22) A pinch grip type bottle-type container having a plurality of shallow groove lateral ribs (23) formed at equal intervals so as to allow the deformation of the lower region to the inside of the container during decompression . The pinch grip type bottle container according to claim 1, wherein the reinforcing lateral rib (22) is a protruding rib projecting outward of the container.

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