JP3330717B2 - Synthetic resin container with handle and molding method and apparatus therefor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a molding method and apparatus with handle synthetic resin container Narabiniso, in particular, the molding of the handle with synthetic resin container Narabiniso to the handle when the preform heated integrated with the preform Method and apparatus.

[0002]

2. Description of the Related Art Conventionally, as a method of molding a container with a handle, for example, as disclosed in Japanese Patent Application Laid-Open No. 2-32950, a handle is inserted into a blow mold and a preform is blown in the blow mold. There was a method to integrate the handle by molding, but such a method has the disadvantage that the mold structure of the blow mold becomes complicated, the insert device into the blow mold becomes large, and the cost increases. was there.

In order to avoid this drawback, Japanese Patent Laid-Open Publication No. HEI 4-16829 discloses a handle provided with a grip extending laterally from the ring and placing the ring on the upper surface of the temperature control pot. Then, insert the preform into this ring part,
A method is disclosed in which a pressurized fluid is blown into a preform to integrate the ring portion and the preform.

[0004]

However, when a container with a handle is formed by this method, the temperature control pot has a predetermined width because hot water or the like must be circulated inside the container. The shape must extend outward, avoiding the temperature control pot.

[0005] In this case, first, there is a problem that the shape of the handle is limited to a certain degree, and the degree of freedom in creating a container design is reduced.

In addition, according to this method, the lower end of the gripping portion is considerably separated from the preform. Therefore, when the preform is blow-molded, the lower end of the gripping portion is formed by the thinner wall thickness of the bottle. Will be fixed,
There has been a problem that the winding of the fixing portion is insufficient.

In view of the above problems, an object of the present invention is to improve the degree of freedom in the shape of a handle, and to securely wind and fix the lower end of the grip portion and fix the container with a handle.
And to provide a molding method and apparatus Narabiniso.

[0008]

Means for Solving the Problems and Actions To solve the above problems, the invention according to claim 1 is directed to a container body obtained by biaxially stretch-blowing a bottomed cylindrical preform having a neck portion. And a handle having a handle portion having a ring portion supported below the neck portion of the container body and a grip portion extending from the ring portion, wherein the forming device is warm. Adjusting part and a blow molding part, the temperature adjusting part has a mounting part for mounting the ring part on an upper part, a notch part on a side part, and before a biaxial stretching blow molding step. It includes a temperature control pot for temperature control by placing the preform inside, the gripping portion by the notch
And the ring portion of the handle is placed on the placing portion in a state where interference with the temperature control pot is avoided, and the preform is relatively moved in the longitudinal direction and inserted into the ring portion, The temperature of the preform is controlled by positioning the ring portion below the neck portion.

In order to mold a synthetic resin container with a handle by using this molding apparatus, a handle having a ring portion and a grip portion is prepared, and the ring portion is placed and placed on the placement portion of the temperature control pot. What is necessary is just to insert a preform in this ring part, and to control temperature.

[0010] In this case, the temperature control pot, with the grip portion to the side
Since it has the notch of the shape which avoids interference , a grip part can be arrange | positioned in this notch. Therefore, when the ring portion is placed within the notch portion, the grip portion does not hinder the mounting of the ring portion on the mounting portion, so that the problem of improving the degree of freedom of the grip shape can be solved.

[0011] This also makes it possible to support the handle at a predetermined position on the preform in such a shape that the lower end of the gripping portion approaches the preform. Then, in the preform blow molding step, the side wall of the preform will contact the lower end of the grip portion while securing a relatively thick wall in a state where the amount of horizontal axis stretching is still small, and if the blow molding is further continued, Thus, it is possible to solve the problem that the lower end portion of the grip portion is securely wound and integrated.

Further, when the synthetic resin container with a handle is molded by the molding apparatus, the grip is disposed in the notch, so that the grip can be positioned by the notch, and the positioning of the grip can be easily performed. Can be solved.

According to a second aspect of the present invention, in the method of molding a synthetic resin container with a handle, the molding device and the preform according to the first aspect are used, and the ring portion is placed on the placing portion. Dispose the tip of the grip portion at a position approaching the inner peripheral surface in the notch within the range from the outer peripheral surface to the inner peripheral surface of the temperature adjustment pot, and relatively move the preform in the longitudinal axis direction to move the preform. The method includes a step of inserting into the ring portion, and positioning the ring portion below the neck portion to control the temperature of the preform.

That is, in this molding method, a handle having a ring portion and a grip portion is prepared, the tip of the grip portion is placed in the notch portion, the ring portion is placed on the mounting portion, and the preform is placed on the ring portion. And the temperature is adjusted by inserting it into

In particular, the temperature control pot used in this molding method has a notch in a side portion of the shape avoiding the grip portion, and the grip portion is arranged in the notch portion.
Therefore, the problem of improving the degree of freedom of the grip shape can be solved because the grip portion does not become an obstacle when the ring portion is mounted on the mounting portion.

[0016] Further, the grip portion is arranged at a position in the notch portion that approaches the inner peripheral surface of the temperature control pot. Therefore, in the blow molding process of the preform, the side wall of the preform contacts the lower end of the gripping portion with a little blow molding, and if the blow molding is further continued, the lower end of the gripping portion is securely wound and integrated. Become.

Further, in this molding method, since the grip is disposed in the notch, the grip can be positioned by the notch, and the problem that the grip can be easily positioned can be solved.

Next, a third aspect of the present invention is characterized in that, in the second aspect, the temperature control pot heats a region other than a region facing the cutout portion of the preform to a high temperature. I do.

That is, in this molding method, in addition to the features of the molding method according to claim 2, the temperature control pot heats a region other than the notch facing region of the preform to a high temperature,
The temperature is controlled so that a temperature distribution occurs in the preform.

By doing so, in the blow molding process, the preform has a low elongation rate in the relatively low-temperature notch-facing area and a high elongation rate in the other relatively high-temperature areas. The thickness is larger than the thickness of the latter region.

Since the notch-facing region is a region facing the handle portion, the tip of the grip portion is entangled with the thick notch-facing region to be surely integrated.

Further, since a space is provided between the handle and the container body for putting a hand, the blow cavity surface is
The handle has a shape close to the preform. Therefore, the facing region of the handle in the preform requires a small amount of stretching, and even if this portion is at a low temperature, no break occurs during stretching.

Next, a fourth aspect of the present invention is the method according to the second or third aspect, further comprising a step of pre-blowing the preform in the temperature control pot to form an undercut portion. When removing from the temperature control pot, the method includes hooking the undercut portion to the ring portion and removing the handle together.

That is, in this molding method, in addition to the features of the molding method according to claim 2 or 3, a preform is inserted into a ring portion and inserted into a temperature control pot.
After the preform is pre-blown, the preform is separated out of the temperature control pot.

Here, since the undercut portion is formed in the preform by the preliminary blow, the undercut portion is prevented from being caught by the ring portion.
Then, when the preform is to be detached from the temperature control pot, the ring portion is caught and the handle is detached together with the preform.

In this way, this molding method can solve the problem of omitting the means for transporting the handle when moving from the temperature control step of the preform to the blow molding step.

[0027]

[0028]

[0029]

Next, the invention of claim 5, wherein the engaging portion is injection molded laterally projecting below the neck and neck portion are injection molded, blow molded below the engagement portion Yes a container body having a drawn barrel, the grip portion can engage the engaged portion with the engaging portion is extended from the ring section and the ring portion formed in a ring inner surface at And a handle integrated with the container body by engagement of the engaging portion and the engaged portion.

That is, in this synthetic resin container with a handle, the engaging portion of the container body and the engaged portion of the handle are engaged to integrate the two.

Such a container can be formed, for example, by carrying out the invention of claim 5, and the process of integrating the container body with the handle can be simplified.

[0033]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments to which the present invention is applied will be specifically described below with reference to the drawings.

FIG. 1 is a diagram showing a temperature control of a preform and a process of attaching a handle. In this figure, in this step,
A neck mold 20 for gripping the preform 10, a temperature control pot 30, a preliminary blow core 24, a temperature control core 26, and a handle 40 injection molded in advance are used.

Preform 10 used in FIG.
Is molded in an injection molding process, and has a cylindrical body 12 with a bottom and a neck 14 on the opening side. The neck portion 14 has a screw portion 16 into which a cap (not shown) can be screwed, and a flange-like support ring 18 larger than the diameter of the body portion 12 is provided below the screw portion 16.

Next, the temperature control pot 30 and the handle 40 are shown in FIG. As shown in FIG. 1 and FIG.
Reference numeral 0 denotes, for example, ring-shaped temperature control pieces 30a to 30c divided into three in the height direction, and each temperature control piece has a built-in heater 32. The heater 32
May be a rod-shaped one built in the vertical axis direction.

As described above, by dividing the temperature control piece into a plurality of temperature control pieces to form the temperature control pot 30, the heating temperature of each temperature control piece is made different, and in some cases, a cold water flow path is provided. Upon cooling, a temperature distribution can be formed in the preform 10 to be temperature-controlled.

A ring-shaped (refer to FIG. 2) heat-insulating piece 34 is interposed on the uppermost temperature control piece 30a, and a ring-shaped (refer to FIG. 2) mounting piece 36 is also provided. On the upper part of the mounting piece 36, a mounting portion 38 which is concavely recessed is formed so that the ring portion 42 of the handle 40 can be mounted and stored at the center. The depth of the mounting portion 38 is such that the ring portion 42 of the handle 40 is flush with the upper surface of the temperature control pot 30.

Thus, since the heat insulating piece 34 is interposed between the temperature control piece 30a and the mounting piece 36, the ring portion 42 of the handle 40 mounted on the mounting portion 38 is hardly heated. Deformation due to heating of the ring portion 42 can be prevented. Further, the mounting portion 38 has a concave shape and the ring portion 4
2 can be stored, so that the mounting position of the ring portion 42 can be easily determined.

Further, these temperature control pieces 30a to 30c
Each of the mounting pieces 36 is cut out at a predetermined width from the inner surface of the ring to the outer surface of the ring, and a notch portion 50 is formed in the temperature control pot 30 so as to form a C shape in a plan view. The notch 50 is used to hold the grip 4 of the handle 40.
The preform 10 is formed to have a width capable of accommodating the preform 10, so that the temperature of the preform 10 can be adjusted in a state where the gripping portion 44 is close to the preform 10.

Further, by forming the notch 50,
Since the heater 32 is not provided in the area where the notch 50 is formed, the temperature is lower than that of the other area, and accordingly, the corresponding area of the notch 50 in the preform 10 has a lower temperature,
In comparison with this, a temperature distribution occurs in which the other region becomes hot.

A partition plate 52 is attached to the notch 50 at a right angle downward from the mounting surface 38a of the mounting portion 38, and the partition plate 52 is, as shown in FIG. Since it reaches the lowermost temperature control piece 30c, the notch 50 is partitioned so that the inside and the outside are shut off in the lateral direction. This prevents dust and dirt from entering the temperature control cavity of the temperature control pot 30.

Another configuration of the temperature control pot 30 will be described. In the temperature control pot 30, the temperature control cavity surface 31 has a diameter larger than the diameter of the body 12 of the preform 10, and the pot fixing plate 33,
For example, the preform 10 can be arranged inside by being driven up and down by driving a vertical movement mechanism such as a cylinder rod 35.

Next, the handle 40 will be described with reference to FIG.
And the engaged portion 46.

The ring portion 42 has a ring hole 42a large enough to allow the body 12 of the preform 10 to pass therethrough.

The grip portion 44 extends laterally from the outer periphery of the ring portion 42 with its upper surface flush with the upper surface, bends downward at a predetermined length, and has a tip extending in the direction of the center axis of the ring hole 42a. It is inclined so as to approach.

More specifically, the distance between the tip of the grip portion 44 and the center axis of the ring hole 42a is smaller than the distance between the center axis of the temperature control pot 30 and the outer peripheral surface, and the center axis of the temperature control pot 30 It is formed so as to be slightly larger than the distance between the partition and the outer surface of the partition plate 52. Therefore, when the ring portion 42 is mounted on the mounting portion 38 of the temperature control pot 30, FIG.
As shown in the figure, the grip portion 44 is disposed in the notch portion 50,
Further, the tip of the grip portion 44 does not come into contact with the outer surface of the partition plate 52.

In addition, the grip 44 is disposed in the notch 50 of any shape as long as it is within the above range. 40 can be placed, and the degree of freedom of the handle shape is improved.

When the handle 40 is thus arranged and the preform 10 is arranged in the temperature control pot 30, the tip of the grip portion 44 approaches the side wall of the preform 10 as shown in FIG. In the biaxial stretch blow molding step, the side wall of the container to be blow molded can be firmly integrated by wrapping around the tip of the grip portion 44.

Further, the engaged portion 46 is provided at the tip of the grip portion 44 so as to protrude obliquely upward and downward, so that it can be more securely engaged with the side wall of the container. I have.

Next, the operation of the temperature control and the handle mounting step will be described. FIG. 3 is a diagram showing the temperature control and the handle attaching step.

In the same figure, the preform 10 held by the neck mold 20 and transported to the temperature control and handle mounting step is disposed above the temperature control pot 30.

Further, a handle 40 is arranged in the temperature control pot 30. Specifically, the mounting portion 38 of the temperature control pot 30
The grip portion 44 is disposed in the cutout portion 50 in correspondence with the ring portion 42, and the engaged portion 46 at the tip of the grip portion 44 is close to the partition plate 52.

In such a state, after the preform 10 and the handle 40 are arranged, the cylinder rod 35 is driven to move upward, and the temperature control pot 30 is moved upward via the pot fixing plate 33. The upward movement of the temperature control pot 30 is continued until the upper surface of the temperature control pot 30 contacts the lower surface of the neck mold 20.

Thereafter, the temperature control core 26 (see FIG. 1) is driven downward and inserted into the neck portion 14 of the preform 10.

Then, a temperature control step of the preform 10 is performed. In this temperature control step, the temperature of the outer wall surface of the body 12 of the preform 10 is controlled by the temperature control cavity surface 31 controlled by the heater 32, and the temperature control core 26 inserted in the neck portion 14. The temperature of the inner wall surface under the neck portion 14 is controlled.

In this embodiment, since the temperature control pot 30 has a plurality of temperature control pieces 30a to 30c, a temperature control that forms a desired temperature distribution in the height direction of the preform 10 is realized. it can.

Further, since the notch 50 is formed in the temperature control pot 30, the preform 10 has a low temperature in a region corresponding to the notch 50 and a high temperature in the other region, and has a circumferential direction. The temperature distribution can also be formed.

Thus, the preform 10 is adjusted to the optimum temperature for the subsequent biaxial stretch blow molding.

When this operation is completed, the cylinder rod 35 is driven downward, and the temperature control core 26 is driven upward,
The preform 10 is held by the neck mold 20 and transported to the next biaxial stretch blow molding step.

FIG. 4 shows this biaxial stretch blow molding step.
In this figure, a blow cavity mold 70 having a blow cavity surface 72 along the outer shape of the final container is used to perform this step.

The blow cavity mold 70 is composed of two split molds separable in the front and back directions in FIG. 4, and has a handle accommodating cavity 76 which can accommodate the handle 40 facing the parting surface.

Further, the neck portion 14 of the preform 10
, A blow core 80 is interpolated.
A stretch rod 82 having a top piece 84 is supported so as to be able to move up and down.

Next, the biaxial stretch blow molding step of the preform 10 will be described. When the preform 10 is conveyed to a predetermined position by the neck mold 20, the blow cavity mold 70 waiting thereunder is opened. It is driven up in the state. Then, the preform 10 and the handle 40 can be housed and arranged inside the blow cavity mold 70 as a result of being stopped and closed at the upper limit position.

Thereafter, the blow core 80 and the stretch rod 82 are driven downward to be inserted into the neck portion 14 at a predetermined position. Then, while the center of the inner surface of the bottom wall of the preform 10 is centered and guided by the top piece 84, the stretch rod 82 is driven downward to drive the preform 10.
In the longitudinal direction. At the same time, or subsequently thereto, by introducing a pressurized fluid for example air from the blow core 80, to stretch the preform 10 in its horizontal direction.

As a result, the trunk 12 of the preform 10
Is blow-molded until it comes into close contact with the cavity surface 72 of the blow cavity mold 70, so that a container with a handle having a final shape can be formed.

Moreover, in the preform 10, in the temperature control step, the temperature distribution is formed in the circumferential direction so that the temperature of the portion corresponding to the tip of the handle 40 is low, so that the stretching rate of this portion is low. The engaged portion 46 at the tip of the handle 40 is caught by this thick wall. By doing so, the handle 40 is integrated with the thick wall of the container and becomes strong.

Since it is necessary to form a space for a hand between the handle 40 and the container body, as shown in FIG. 4, the cavity surface 72 has a shape in which the handle 40 side is close to the preform 10. No. Then, the facing region of the handle 40 in the preform 10 requires a small amount of stretching, so that even when this portion is at a low temperature, no break occurs during stretching, and in the biaxial stretching blow molding process, No problem.

Next, means for connecting the preform 10 and the handle 40 will be described. In the above embodiment, when the preform 10 is conveyed from the temperature control and handle mounting step to the biaxial stretch blow molding step, the preform 10 and the handle 40 are not connected. In order to maintain the relative position with 10,
The transport must be performed while supporting the handle 40. Therefore, means for connecting the two will be described with reference to FIG. The same figure is an enlarged vertical sectional view of a mounting portion between the preform 60 and the handle 80. Here, the handle 80 is placed at a predetermined position of the temperature control pot 30 as in FIG.

In the same figure, below the neck portion 62 of the preform 60, a side-projecting engaging piece 64 corresponding to the engaging portion is formed in a ring shape. The engagement piece 64 is formed with a tapered portion 64a that expands upward.

A ring groove 84 corresponding to the engaged portion is formed in the ring portion 82 of the handle 80 on the inner surface of the ring, and this ring groove 84 can be engaged with the engaging piece 64. . Further, the upper piece 84a of the ring groove 84 has an inner circumference larger than the body 66 of the preform 60 inserted from above and smaller than the engagement piece 64.

On the other hand, the lower piece 84b of the ring groove 84 forms an inner circumference of a minimum size that allows the body 66 of the preform 60 to be inserted, and is disposed at a predetermined position as shown in FIG. In some cases, the gap between the preform 60 and the outer peripheral surface is small.

When the preform 60 is relatively moved in the longitudinal direction and is inserted into the ring portion 82, the tapered portion 64a of the engaging piece 64 is elastically deformed so that the ring groove 8 is formed.
4, the preform 60 and the handle 80 can be integrated.

Next, the injection molding step of the preform 60 used in FIG. 5 will be described. FIG. 6 is a view showing an injection step of this preform.

In the figure, a preform 60 includes an upper neck mold 90 that defines the outer wall of the neck portion 62, a lower neck portion 92 that defines the engagement piece 64, and an injection cavity mold that defines the outer wall of the body 66. It is molded by 94 and a core mold 96 that defines the inner wall of the preform 60. The injection cavity mold 94 is provided with a plurality of cooling water passages 94a so that it can be cooled. Further, a cylindrical hole 96a is formed in the core mold 96, and a pipe 98 is inserted through the hole 96a so that cold water flows as indicated by an arrow in the figure. And the hot runner nozzle 10
The preform 60 is molded by injecting a resin from the beginning.

Here, the lower neck mold 92 breaks into two parts in the opposite direction after forming the preform 60 and separates. The upper neck mold 90 transports the preform 60 to the next temperature control and handle mounting step. You. Thus, in the state shown in FIG. 5, the preform 60 and the handle 40 can be placed at predetermined positions of the temperature control pot 30.

The present invention is not limited to the above embodiment, and various modifications can be made within the scope of the invention.

For example, after arranging the members as shown in FIG. 1, a pressurized fluid such as air may be introduced by inserting a spare blow core into the preform 10. As a result, the body 12 of the preform 10 is blow-molded so as to be in close contact with the temperature control cavity surface 31 of the temperature control pot 30, and a pre-blown preform having a body extending in the horizontal axis direction is formed. Will be.

By performing such preliminary blowing, an undercut portion for attaching and fixing the ring portion 42 of the handle 40 inserted under the neck portion 14 of the preform 10 can be formed.

In this modification, the upper surface of the ring portion 42 is in close contact with the lower surface of the support ring 18 of the neck portion 14, and the lower surface of the ring portion 42 is in close contact with the undercut portion 58. As a result, the ring portion 42 of the handle 40
The handle 40 is held between the support ring 18 and the undercut portion 58, and when the pre-blown preform is subsequently separated from the temperature control pot 30, the handle 40 is prevented from falling from the preform.

In this modification, the partition plate 52
Is attached at a position in contact with the temperature control cavity surface 31,
Preferably, steps are prevented from being formed in the preform 10 by the preliminary blowing.

Furthermore, the partition plate 52 is preferably insulated, and the cooling structure is attached to a position where the insertion of the handle 40 is not hindered, for example, at the lower end of the partition plate 52. A predetermined position of the preform 10 can be cooled to a low temperature by the partition 52.

[0083]

As described above, according to the first or second aspect of the present invention, since the temperature control pot has the notch, the shape of the handle is limited as long as it is within the notch. Degree of freedom can be improved. In addition, from this, the handle can be formed into a shape such that the lower end of the gripping portion approaches the preform, and the lower end can be rolled into the side wall of the preform to be integrated. Further, the positioning of the grip portion can be performed by the notch.

According to the third aspect of the present invention, by forming a predetermined temperature distribution on the preform, the tip of the handle can be rolled into the thick region to be integrated firmly.

According to the fourth aspect of the present invention, by forming the undercut portion on the preform, the handle can be transported together with the preform, and the means for transporting only the handle can be omitted.

[0086]

According to the fifth aspect of the invention, the step of integrating the container body and the handle can be simplified.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing a temperature control of a preform and a process of attaching a handle.

FIG. 2 is a perspective view of a temperature control pot and a handle in FIG.

FIG. 3 is a longitudinal sectional view showing a temperature control of a preform and a process of attaching a handle.

FIG. 4 is a longitudinal sectional view showing a biaxial stretch blow molding step of a preform.

FIG. 5 is a longitudinal sectional view showing an attachment portion between a preform and a handle.

FIG. 6 is a vertical sectional view showing a preform injection molding step.

[Explanation of symbols]

 10, 60 Preform 12 Body 14 Neck 30 Temperature control pot 32 Heater 38 Placement 40, 80 Handle 42, 82 Ring 44 Holder 50 Notch 64 Engagement piece (engagement) 84 Ring groove (covered) Engagement part)

Continuation of the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B65D 23/10 B65D 25/28 B29C 49/20

Claims (5)

(57) [Claims] 1. A container body obtained by biaxially stretch-blowing a bottomed cylindrical preform having a neck portion, a ring portion supported below the neck portion of the container body, and a ring portion extending from the ring portion. A molding device for a synthetic resin container with a handle, comprising: a handle having a grip portion to be provided; wherein the molding device has a temperature control portion and a blow molding portion, and the temperature control portion mounts the ring portion. A mounting portion to be provided at the upper portion, a notch portion on a side portion, and a temperature control pot for controlling the temperature by arranging the preform inside before the biaxial stretch blow molding step, and including the notch portion, Drying of the gripper and the temperature control pot
The ring part of the handle in a state to avoid interference
The preform is placed on the mounting portion, the preform is relatively moved in the longitudinal direction, inserted into the ring portion, and the preform is temperature-controlled by positioning the ring portion at a position below the neck portion. Characteristic device for molding synthetic resin containers with handles. 2. A method for molding a synthetic resin container with a handle, comprising: using the molding device and the preform according to claim 1; placing the ring portion on the placement portion; The tip of the grip portion is arranged at a position approaching the inner peripheral surface within the notch within the range of the inner peripheral surface, and the preform is relatively moved in the longitudinal direction and inserted into the ring portion, A method for molding a synthetic resin container with a handle, comprising a step of adjusting the temperature of the preform by positioning the ring portion below the neck portion. 3. The molding of a synthetic resin container with a handle according to claim 2, wherein the temperature control pot heats a region other than a region facing the cutout portion of the preform to a high temperature. Method. 4. The method according to claim 2, further comprising the step of pre-blowing the preform in the temperature control pot to form an undercut portion, wherein the preform is detached from the temperature control pot. ,
A method of molding a synthetic resin container with a handle, comprising hooking the undercut portion on the ring portion and detaching the handle together. 5. An injection molded neck and an injection molded engagement protruding laterally below the neck.
When a container body having a <br/> the stretched body portion downward of said engagement portion in blow molding, engageable engaged portion is formed in a ring inner surface to the engaging portion A grip having a ring portion and a grip portion extending from the ring portion, wherein the engaging portion and the engaged portion are engaged with each other to be integrated with the container body. Synthetic resin container with handle.