KR20040042881A - Vessel with Handle and Manufacturing Method of Vessel with Handle - Google Patents

Abstract

PURPOSE: Provided are a vessel with handle and a manufacturing method thereof, which offer the high joint strength between the vessel body and the handle. CONSTITUTION: The vessel with a handle includes: a vessel body(2), having a surrounding wall(11) and an axial portion(12), extended from the surrounding wall(11); and a resin handle formed to cover the axial portion(12). The vessel body(2) and the surrounding wall(11) are injection-molded. The axial portion(12) has a convex and concave form(14a) on its outer circumference.

Description

Vessel with Handle and Manufacturing Method of Vessel with Handle}

The present invention relates to a dish with a handle and a method for producing a dish with a handle.

The tableware with a handle which fixed the handle to the tableware body is known by shape | molding the tableware body and C-shaped (ring-shaped) handle separately, and connecting the both ends of a handle top and bottom of the tableware body, respectively.

However, when the back of the tableware body is low, the space for attaching the ring-shaped handle cannot be secured in the tableware body. In such a case, when the handle is fixed to the tableware main body only as one end of the handle, it is difficult to secure a sufficient connection strength to manufacture or use the tableware.

Then, an object of this invention is to provide the manufacturing method of the tableware with a handle with high connection strength of a tableware main body and a handle, and the tableware with a handle.

1 is a diagram showing a cup according to a first embodiment.

2 shows a cup according to a second embodiment;

3 shows a cup according to a third embodiment;

4 shows a cup according to a fourth embodiment;

<Explanation of symbols for the main parts of the drawings>

1, 20, 30, 40: cup

2: body

3: handle

11: surrounding wall

12: shaft part

13: base part

13a: end

14 core part

14a: uneven portion

21: discarded shaft

41: handle body

42: fall prevention unit

EMBODIMENT OF THE INVENTION Hereinafter, this invention is demonstrated. In addition, in order to make understanding of this invention easy, the code | symbol of an accompanying drawing is attached | subjected by parenthesis, However, this invention is not limited to the form of illustration by this.

Tableware 1, 20 with a handle of the present invention has a circumferential wall portion 11 and a shaft portion 12 extending from the circumferential wall portion, the circumferential wall portion and the tableware body 2 in which the axial portion is injection molded at the same time, The above-mentioned subject is solved by providing the resin handle 3 shape | molded so that the said shaft part may be wrapped.

According to the tableware with a handle of the present invention, since the handle is formed so as to cover the shaft portion by simultaneously molding the peripheral wall portion and the shaft portion, it is possible to ensure a higher connection strength than when welding directly to the peripheral wall portion. Therefore, a tableware with handles of sufficient strength can be realized without forming the handles in a ring shape. Moreover, it is known to use the material with high adhesiveness with a main body for a handle conventionally, and to ensure the connection strength of a main body and a handle. In this case, there is a problem that the use of a high adhesion material causes a cost increase, or the design is impaired. However, it is possible to solve this problem as well. In addition, since the main body and the handle are molded separately, it is possible to make each color or material different. DESCRIPTION OF RELATED ART Conventionally, the method of inserting a handle into a main body is known as a method of shape | molding the main body and the handle separately and shape | molding the tableware with a handle. In this case, dust tends to accumulate in the connecting portion between the main body and the handle, which is disadvantageous in terms of hygiene. However, in the tableware with a handle of this invention, dust does not accumulate in a connection part, and is advantageous also in a sanitary surface.

In the tableware with a handle of this invention, the said shaft part may be formed so that the uneven part 14b may be provided in the outer periphery. In this case, the uneven part is formed also in the part which wraps the shaft part of a handle, and the uneven part of a shaft part and the uneven part of a handle part mesh | engage, and deviating from the shaft part of a handle is reliably prevented.

In the tableware with a handle of the present invention, the shaft portion is formed to have a base portion 13 extending from the peripheral wall portion, and a core portion 14 extending from the base portion, wherein the handle wraps around the core portion. It may be molded so that. In this case, it is possible to fix a core part in the center of the cavity corresponded to the handle of a metal mold only by inserting a base part with the metal mold | die for forming a handle.

In the tableware with a handle of this invention, the said base part side edge part of the said core part may be formed so that it may become thick gradually toward the said base part. When resin which flowed in so that the cross section of a base part and a core part is welded, the welded part is easy to peel from the cross section of a base part by the force of a handle axial direction. However, such a problem can be avoided by forming the core portion to be thickened toward the base portion gradually and covering the end surface of the base portion with the core portion.

In the tableware with a handle of this invention, the said core part side edge part 13a of the said base part may be formed so that it may extend linearly in a fixed cross-sectional shape. In this case, the mold for forming the handle is brought into close contact with the base part, and the main body is easily inserted by the mold. Therefore, the resin can be prevented from protruding toward the base portion side at the time of handle molding.

The method for producing a tableware 20 with a handle according to the present invention simultaneously ejects the tableware body 2, the shaft portion 12 extending from the tableware body, and the waste shaft 21 extending from the shaft portion to the tableware body. The above-mentioned problem is solved by including the process of shaping | molding, the process of shaping | molding the resin handle 3 so that the said shaft part may be wrapped, and the process of removing the said waste shaft.

When the shaft portion is lengthened, the contact area between the shaft portion and the handle is widened, and the pull out of the handle is prevented. On the other hand, the shaft portion may be deformed in the process of solidifying the shaft portion or inflowing the resin so as to surround the shaft portion. However, according to the manufacturing method of the tableware with a handle of this invention, since the waste shaft which supports a core part is provided, it is possible to remove such a concern.

According to another embodiment of the present invention, a method of manufacturing a tableware with handle 30 includes a tableware body 2, a handle 3 extending from the tableware body, and a waste shaft 21 extending from the handle to the tableware body at the same time. The above-mentioned subject is solved by including the process of injection molding and the process of removing the said waste shaft.

Injection molding the handle and the main body at the same time may cause the handle to collapse in the process until the handle solidifies. However, according to the manufacturing method of the other handled tableware of this invention, since the discard shaft which supports a handle is provided, it is possible to eliminate such a concern.

Another handled tableware 40 of the present invention has a handle body 41 and a fall prevention part 42, and the handle body and the fall prevention part simultaneously wrap the handle 3 and the fall prevention part which are injection molded. The above-mentioned subject is solved by providing the resin dish main body 2 shape | molded so that it may be made.

According to the tableware with the other handle of the present invention, since the handle body and the anti-separation unit are molded at the same time to cover the anti-separation unit, the main body of the utensil is molded so that a high connection strength is ensured as compared with the case where the main body is directly welded to the main unit. It is possible. Therefore, it is possible to realize a tableware with a handle having a sufficient strength without forming the handle in a ring shape or using a material having high adhesion to the handle. In addition, since the main body and the handle are molded separately, it is also possible to make each color or material different. In addition, as compared with the method of fitting the handle into the main body, dust does not accumulate in the connecting portion, which is advantageous in terms of hygiene.

(1st embodiment)

1 shows a first embodiment of the present invention. The cup 1 of FIG. 1A is composed of baby utensils, and includes a main body 2, a handle 3, and a pedestal 4. As shown in FIG.

The main body 2 includes a bottom surface portion 10, a peripheral wall portion 11 surrounding the bottom surface portion 10, and a shaft portion 12 protruding from the peripheral wall portion 11. The shaft portion 12 includes a base portion 13 extending from the peripheral wall portion 11 and a core portion 14 extending from a cross section of the base portion 13. The uneven part 14b is formed in the core part 14 by providing some protrusion part 14a ... 14a. 1B is an enlarged view of a connection portion between the base portion 13 and the core portion 14. The core part 14 side edge part 13a of the base part 13 is formed in the cylinder shape which extends linearly. A chamfer is performed in the connection part of the core part 14 and the base part 13, and the base part side edge part of the core part 14 is formed so that it may become thick thick toward the base part 13 gradually.

The handle 3 is constituted by an axial handle, and only one end 3a of both ends 3a and 3b is connected to the main body 2. The end part 3a is formed so that the core part 14 may be covered.

The shaping | molding method of the cup 1 is demonstrated. First, injection molding each part 10 to 12 simultaneously by injecting one type of resin into a pair of molds having a cavity in the same shape as the contours of the bottom surface part 10, the peripheral wall part 11, and the shaft part 12. To form the main body 2. After the main body 2 has solidified to some extent, the main body (not shown in FIG. 1 (b) by a pair) of molds 100 and 100 having a cavity in the same shape as the outline of the handle 3. Insert 2). Base portions 13 side portions 100a and 100a of the molds 100 and 100 are longer than the end portion 13a and are formed in a cylindrical shape extending linearly. The ends 100a and 100a are folded in the paper plane vertical direction in Fig. 1B, and the end 13a is pushed from both sides. Then, as indicated by arrows y1 and y1, one type of resin is introduced to surround the core portion 14 to form the handle 3 (hatched portion in Fig. 1A).

According to such a cup 1, since the main body 2 and the handle 3 are molded separately, it is possible to make each color or material different. Since the handle 3 is molded to simultaneously form the peripheral wall portion 11 and the shaft portion 12 to cover the shaft portion 12, it is possible to secure a high connection strength compared to the case where the peripheral wall portion 11 is directly welded to the peripheral wall portion 11. It is possible. Therefore, it is possible to ensure sufficient strength even if the handle 3 is formed in a ring shape or a material having high adhesion to the main body 2 is not used for the handle 3. DESCRIPTION OF RELATED ART Conventionally, the method of inserting a handle into a main body is known as a method of shape | molding the main body and the handle separately and shape | molding the tableware with a handle. In this case, dust is likely to accumulate on the connection portion between the main body and the handle, which is disadvantageous in terms of hygiene. However, in the cup 1 of this invention, dust does not accumulate in a connection part, and is advantageous in a sanitary surface. Since the uneven part 14b is provided in the core part 14, the uneven part is formed also in the part which wraps the axial part of the handle 3. As shown in FIG. For this reason, the uneven | corrugated part 14b and the uneven | corrugated part of a handle are meshed | engaged, and the deviating from the shaft 12 of the handle 3 is reliably prevented. Since the core part 14 is formed so that it may become thick gradually toward the base part 13, peeling of the handle 3 is also prevented. By making the end 13a into a simple linear shape, the ends 100a and 100a are brought into close contact with the end 13a and the main body 2 is easily inserted by the molds 100 and 100 to form the handle 3. It is possible to prevent the resin from protruding toward the base portion 13 at the time.

In addition, if the shaft portion 12 is set too long, the case may be deformed due to the molding pressure or shrinkage at the time of forming the handle 3, and therefore it is preferable to set the shaft portion 12 to an appropriate length. The main body 2 and the handle 3 may be formed of the same kind of resin, or may be formed of another kind of resin. The pedestal 4 may be molded in parallel with the molding of the handle 3, or the injection molding may be performed by inserting the main body 2 by a mold for forming the pedestal 4 after the molding of the handle 3.

(2nd embodiment)

2 shows a cup 20 of a second embodiment of the present invention. FIG. 2A is a view showing the cup 20 in the forming process, and FIG. 2B is a view showing the cup 20 after molding. In Fig. 2, the same reference numerals are given to common parts with Fig. 1.

The cup 20 differs from the cup 1 in that the core portion 14 extends to the end portion 3b of the handle 3 and the convex portions 14a... 14a are not provided. Moreover, in the shaping | molding process, it differs by the point in which the discard shaft 21 which connects the edge part 12a of the shaft part 12 and the peripheral wall part 11 is provided.

The shaping | molding method of the cup 20 is demonstrated. First, each of the parts 10 to 12 by introducing the resin into a pair of molds having a cavity in the same shape as the contours of the bottom surface part 10, the peripheral wall part 11, the shaft part 12, and the waste shaft 21. The waste shaft 21 is simultaneously injection molded to form the body 2. After the main body 2 has solidified to some extent, the resin 3 is introduced so as to surround the core 14 as in the first embodiment to form a handle 3 (hatched portion in FIG. 2). After the handle 3 has solidified to some extent, the discard shaft 21 is removed.

According to the cup 20, since the core portion 14 extends to the end portion 3b of the handle 3, the handle 3 is reliably attached to the core portion 14 without providing the convex portions 14a ... 14a. It is possible to fix it on. When the core part 14 is set long, there exists a possibility that the core part 14 may fall to the main body 2 side etc. in the shaping | molding process of the handle 3, etc. However, by providing the waste shaft 21 which supports the core part 14, such a concern can be eliminated.

(Third embodiment)

3 shows a cup 30 of a third embodiment of the present invention. Fig. 3A is a view showing the cup 30 in the molding process, and Fig. 3B is a view showing the cup 30 after molding. In Fig. 3, the same reference numerals are given to parts common to those in Fig. 2.

In the cup 20 of 2nd Embodiment, although the handle 3 was formed so that the core part 14 may be covered after forming the core part 14, in the cup 30, the main body 2 and the handle are formed. (3) is molded simultaneously. And after the handle 3 solidifies to some extent similarly to 2nd Embodiment, the waste-shaft 21 is removed. By supporting the handle 3 by the waste shaft 21 until the handle 3 is sufficiently solidified, the handle 3 can be prevented from falling to the main body 2 side or the like.

(4th embodiment)

4 shows a fourth embodiment. In addition, in FIG. 4, the same code | symbol is attached | subjected to the common part with FIG.

The cup 40 of FIG. 4A differs from the cup 1 in that the core portion 12 is not provided. Moreover, the handle 3 is equipped with the handle main body 41 and the fall prevention part 42. As shown in FIG. The fall prevention part 42 is formed so that it may radially spread from the cross section of the edge part 41a of the handle main body 41, and is covered by the base part 13 and the circumferential wall part 11. Fig. 4B is an enlarged view of the connecting portion between the end portion 41a and the release preventing portion 42. Figs. The end part 41a is formed in the cylinder form which extends linearly.

The shaping | molding method of the cup 40 is demonstrated. First, by introducing one type of resin into a pair of molds having a cavity in the same shape as the outline of the handle main body 41 and the fall prevention part 42, the handle main body 41 and the fall prevention part 42 at the same time. The injection molding is performed to form the handle 3. After the handle 3 is solidified to some extent, the handle (by one pair of molds 200 and 200 having only a cavity in the same shape as the outline of the main body 2 (only one is shown in Fig. 4 (b)) is used. Insert 3). The handle main body 41 side edge parts 200a and 200a of the metal mold | die 200 and 200 are formed in the column shape which extends linearly longer than the edge part 41a. The ends 200a and 200a are folded in the paper plane vertical direction in Fig. 4B, and the ends 41a are pushed from both sides. Then, as indicated by arrows y2 and y2, one kind of resin is introduced to surround the fall prevention portion 42 to form the main body 2 (unhatched portion in Fig. 4A).

According to such a cup 40, it is possible to make each color or material different like the cup 1, and is advantageous also in a sanitary surface. By the fall prevention part 42 being covered by the peripheral wall part 11, it is possible to ensure high connection strength compared with the case where the peripheral wall part 11 and the handle main body 41 were welded directly, The removal from the peripheral wall portion 11 is also reliably prevented. By making the end portion 41a have a simple linear shape, the end portions 200a and 200a are brought into close contact with the end portion 41a, and the handles 3 can be easily inserted by the molds 200 and 200, and the body 2 The resin can be prevented from protruding toward the handle main body 41 side at the time of molding.

In addition, the base portion 13 may not be provided. About the connection of the base 4 and the main body 2, the base 4 is injection-molded before shaping the main body 2, the handle 3 is inserted by the molds 200 and 200, and the base 4 is It is good to connect the pedestal 4 and the main body 2 by inserting also.

As described above, according to the tableware with the handle of the present invention, since the handle is molded to cover the shaft portion by simultaneously molding the peripheral wall portion and the shaft portion, it is more secure to secure a higher connection strength than when welding directly to the peripheral wall portion. It is possible. Therefore, a tableware with a handle having sufficient strength can be realized without forming the handle in a ring shape or using a material having high adhesion to the body.

Claims (8)

A tableware body having a peripheral wall portion and a shaft portion extending from the peripheral wall portion, wherein the peripheral wall portion and the shaft portion are injection molded at the same time; And a resin handle molded to cover the shaft portion. The tableware with a handle according to claim 1, wherein the shaft portion is formed such that an uneven portion is provided on an outer circumference thereof. According to claim 1, wherein the shaft portion is formed to have a base portion extending from the peripheral wall portion, and a core portion extending from the base portion, And said handle is molded to surround said core portion. 4. The tableware with a handle according to claim 3, wherein said base portion side end portion of said core portion is formed to gradually thicken toward said base portion. 5. The tableware with a handle according to claim 3 or 4, wherein said core portion side end portion of said base portion is formed to extend linearly in a constant cross-sectional shape. Simultaneously injection molding a tableware body, a shaft portion extending from the tableware body, and a waste shaft extending from the shaft portion to the tableware body; Molding a resin handle to cover the shaft portion; And a step of removing the waste shaft. Simultaneously molding a tableware body, a handle extending from the tableware body, and a waste shaft extending from the handle to the tableware body; And a step of removing the waste shaft. A handle having a handle body and a release preventing portion, wherein the handle body and the release preventing portion are injection molded at the same time; And a resin tableware body molded to surround the fall prevention unit.