JP2017032206A - Storage - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a storage which enables an opening and a hiding component provided around a hinge mechanism to be decreased in size compared to a conventional structure to improve the visual quality.SOLUTION: A hinge mechanism 3 includes: a rotary shaft support part 31 which may be attached to an insertion port 11 and is provided with an insertion part 314, which is located on one surface and may be inserted into an opening part 251, and a through hole 315 located at the insertion part 314; a rotary shaft 32 which is rotatably inserted from an insertion hole 252 into a support hole 261 through the through hole 315; and a lid 33 having a support part 331, which supports one end of the rotary shaft 32, and configured to fit in the insertion hole 252.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a storage having a front door.

  In a refrigerator having a front door, a refrigerator that can be changed to a right opening or a left opening is conventionally known (see, for example, Patent Document 1). In the conventional refrigerator disclosed in Patent Document 1, mounting holes are provided on the left and right sides of the upper surface of the door, hinge holding members having through holes are provided on the left and right sides of the upper surface of the refrigerator body, and a hinge pin is inserted into one of the left and right mounting holes and through holes. . Thereby, the door can be easily opened to the right or left.

JP 2006-64279 A

  However, in the conventional refrigerator disclosed in Patent Document 1, a cover member is attached so as to cover a hinge holding member provided in the refrigerator main body. Therefore, there is a problem that the concealment component is large and looks bad.

  The present invention has been made to solve the above-described problems, and the opening and concealment parts provided around the hinge mechanism can be reduced with respect to the conventional configuration, and the appearance can be improved. The purpose is to provide storage.

  The storage according to the present invention is a box-shaped member having an open front surface, and a heat insulating container having an insertion port at the upper portion of the front surface, an opening portion provided at the upper portion of the rear surface, and an opening portion on the upper surface. A front door having a provided insertion hole and a support hole provided opposite to the insertion hole across the opening, and a hinge mechanism for supporting the front door at the upper part so as to be rotatable with respect to the heat insulating container; The hinge mechanism can be attached to the insertion port, and an insertion part that can be inserted into the opening is provided on one surface. A rotation shaft support portion provided with a through hole in the insertion portion, a rotation shaft that can be rotatably inserted into the support hole from the insertion hole through the through hole, and a support portion that can support one end of the rotation shaft. And a lid that can be fitted into the insertion hole.

  According to this invention, since it comprised as mentioned above, the opening provided around a hinge mechanism and concealment parts can be reduced with respect to a conventional structure, and appearance can be improved.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure (in the case of right opening) which shows the structural example of the refrigerator which concerns on Embodiment 1 of this invention, (a) It is an exploded perspective view, (b) It is the A section enlarged view of (a). It is a disassembled perspective view which shows the structural example of the front door in Embodiment 1 of this invention (in the case of right opening). It is a disassembled perspective view (in the case of left opening) which shows the example of composition of the front door in Embodiment 1 of this invention. It is a figure which shows the structural example of the door upper cover in Embodiment 1 of this invention, and an upper cover bearing part, (a) It is a disassembled perspective view seen from the front side, (b) The attachment to the door upper cover of an upper cover bearing part is demonstrated. It is the perspective view seen from the back side. It is a perspective view which shows the structural example of the metal mold | die of the door upper cover in Embodiment 1 of this invention. It is a figure which shows the structural example of the front door in Embodiment 1 of this invention, (a) It is a perspective part, (b) It is a BB sectional drawing of (a), (c) (b) It is a C section enlarged view, and is a D section enlarged view of (d) and (b). BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the structural example of the bearing part in Embodiment 1 of this invention, a lid | cover, a rotating shaft, and a rotating shaft support part, (a) It is the perspective view seen from the front side, (b) The perspective view seen from the back side It is. It is a figure explaining the attachment to the heat insulation container of the rotating shaft support part in Embodiment 1 of this invention, (a) It is an exploded perspective view, (b) The state which attached the rotation shaft support part to the heat insulation container is shown. It is a front view, is an EE sectional view taken on the line (c) and (b), and is a sectional view taken on the line FF of (d) and (b). It is a figure which shows the structural example of the refrigerator which concerns on Embodiment 1 of this invention (in the case of left opening). It is a figure which shows the structural example of the front door in Embodiment 2 of this invention, (a) It is a disassembled perspective view which shows the case of right opening, (b) It is a disassembled perspective view which shows the case of left opening. It is a disassembled perspective view (for both right and left) which shows the structural example of the front door in Embodiment 3 of this invention. It is a figure explaining the preliminary | backup assembly of the front door in Embodiment 3 of this invention, (a) It is a disassembled perspective view which shows the case where it uses for right opening, (b) The disassembled perspective view which shows the case where it uses for left opening FIG. It is a figure which shows the detail of the preliminary assembly (when it is set as the thing for right opening) in Embodiment 3 of this invention, (a) It is an exploded perspective view, (b) (a) It is a G section enlarged view. (C) It is a perspective view which shows the state after preliminary assembly.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
Embodiment 1 FIG.
The storage is a small device (with a capacity of about 10 to 40 liters) that keeps the cold or warm. Below, the small refrigerator which performs cold preservation is demonstrated to an example as a storage. In the first embodiment, description will be made mainly using a right-opening refrigerator as an example.
As shown in FIG. 1 and the like, the refrigerator includes a heat insulating container 1, a front door 2, a hinge mechanism 3, and a rotation mechanism 4.

  The heat insulating container 1 is a box-shaped member whose front surface is opened, and contains items (food, beverages, etc.) inside. Here, the thing of the internal dimension which can accommodate a 2 liter PET bottle is assumed.

  Further, at the upper part of the front surface of the heat insulating container 1, insertion ports 11 are provided on the left and right sides to which attachment portions 311 of a rotary shaft support portion 31 (to be described later) of the hinge mechanism 3 can be attached. Further, as shown in FIG. 8, the insertion port 11 has a rib 111 that allows a rib insertion tube portion 313 (described later) of the rotation shaft support portion 31 to be fitted therein, and a screw hole used when fixing the rotation shaft support portion 31. 112. Moreover, as shown in FIG. 1, the cover 12 is covered and concealed by the insertion port 11 in which the rotating shaft support part 31 cannot be attached.

  As shown in FIG. 1, the left and right front legs 13 of the heat insulating container 1 are provided with insertion holes 14 through which a rotation shaft 42 described later of the rotation mechanism 4 can be inserted. The insertion hole 14 into which the rotating shaft 42 is not inserted is covered with a cap 15 and concealed.

  The front door 2 opens and closes the front surface of the heat insulation container 1 by being attached to the heat insulation container 1 via the hinge mechanism 3 and the rotation mechanism 4 attached to either the left or right. A detailed configuration example of the front door 2 will be described later.

The hinge mechanism 3 supports the front door 2 at the upper part so as to be rotatable with respect to the heat insulating container 1. A detailed configuration example of the hinge mechanism 3 will be described later.
The rotating mechanism 4 supports the front door 2 at the lower part so as to be rotatable with respect to the heat insulating container 1. A detailed configuration example of the rotating mechanism 4 will be described later.

Next, a configuration example of the front door 2 will be described.
As shown in FIG. 2, the front door 2 has a door outer plate 21, a door rear plate 22, a door lower lid 23, and a door upper lid 24. In addition, the site | part which consists of the door outer plate 21, the door back plate 22, and the door lower cover 23 is equivalent to the door main-body part of this invention.

The door outer plate 21 is a plate-like member that constitutes the outer shell of the surface of the front door 2.
The door back plate 22 is a plate-shaped member that is made of a resin member (for example, polypropylene) and that constitutes the outline of the back surface of the front door 2. Engaging grooves 221 that engage with the side surfaces of the door shell plate 21 are provided on both side surfaces of the door back plate 22. The door back plate 22 is provided with an inlet 222. And after the housing | casing part of the front door 2 is assembled, heat insulating materials (not shown), such as urethane foam, are inject | poured into the inside from the injection port 222. FIG.

  The door lower lid 23 is a plate-like member made of a resin member and attached to the lower ends of the engaged door outer plate 21 and door rear plate 22. A groove portion 231 that can be attached to the lower ends of the engaged door outer plate 21 and the door rear plate 22 is provided on one surface of the door lower lid 23. Further, as shown in FIG. 6D, the other surface (bottom surface) of the door lower lid 23 is provided with insertion holes 232 into which right and left bearing portions 41 (to be described later) of the rotation mechanism 4 can be inserted. .

  As shown in FIG. 2, the door upper lid 24 is a box-shaped member that is made of a resin member and is attached to the upper ends of the engaged door outer plate 21 and door rear plate 22. The door upper lid 24 includes an upper lid body portion 25 and two upper lid bearing portions 26a and 26b.

  As shown in FIG. 4, the upper lid main body 25 is a box-shaped member whose back surface is opened. The upper lid main body 25 is provided with an opening 251 into which an insertion portion 314 (to be described later) of the rotary shaft support portion 31 can be inserted on one of the left and right rear surfaces. In addition, an insertion hole 252 communicating with the opening 251 is provided on the upper surface of the upper lid main body portion 25. The insertion hole 252 has a dimension that allows a rotation shaft 32 (to be described later) of the hinge mechanism 3 to be inserted at the minimum. Further, in order to provide symmetry as a design, an insertion hole 252 is also provided at an end portion (on the right side in FIG. 4A) of the upper lid main body portion 25 where the opening 251 is not provided.

  The upper lid bearing portions 26 a and 26 b are configured to be attachable to the left and right from the back surface of the upper lid main body portion 25. Note that the upper lid bearing portion 26a attached to one end side of the upper lid main body portion 25 and the upper lid bearing portion 26b attached to the other end side are configured in a horizontally reversed shape. The upper lid bearing portions 26 a and 26 b are provided with a support hole 261 that faces the insertion hole 252 with the opening 251 sandwiched between the upper lid body portion 25 and the upper lid body portion 25. The support hole 261 rotatably supports the rotation shaft 32 inserted from the insertion hole 252 through a through-hole 315 described later of the rotation shaft support portion 31.

  In the present invention, the door upper lid 24 is divided into an upper lid body portion 25 and upper lid bearing portions 26a and 26b. This ensures a space where the front door 2 and the hinge mechanism 3 do not interfere when the refrigerator is opened and closed, and the opening around the hinge mechanism 3 is taken into account in consideration of the mounting interval between the heat insulating container 1 and the front door 2. This is because the door upper lid 24 cannot be integrally molded with the resin when the area is minimized.

  4B, in the door upper lid 24, the upper lid bearing portions 26a and 26b are attached to both ends of the back surface of the upper lid main body portion 25, so that the engaged door outer plate 21 and door rear plate 22 are engaged. A groove portion 241 that can be attached to the upper end of the head is formed. This is because the opening 251 is formed at the end of the door upper lid 24 by resin molding, and the mounting interval between the heat insulating container 1 and the front door 2 is narrowed. In addition, regardless of whether it is for right opening or left opening, the upper lid body 25 can be resin-molded with the common mold 6 by attaching the two upper lid bearings 26 a and 26 b to the upper lid body 25.

  Further, when the front door 2 is for leftward opening, the configuration is as shown in FIG. That is, the position of the opening 251 of the upper lid main body 25 is changed to the opposite side with respect to the configuration shown in FIG. Other configurations are the same. 2 and 3 can be resin-molded using a common mold 6. Hereinafter, a configuration example of the mold 6 will be described.

FIG. 5 is a diagram showing a configuration example of the mold 6 of the upper lid main body portion 25 in the first embodiment of the present invention. In FIG. 5, only the lower mold is shown.
As shown in FIG. 5, the mold 6 includes a base core 61 and slide cores 62 a to 62 d.

The base core 61 is a mold that molds a portion of the upper lid main body 25 excluding the opening 251.
The slide cores 62a to 62d are dies that are slidably arranged at positions where the opening 251 of the upper lid main body 25 is formed. In FIG. 5, the slide cores 62 a and 62 b are disposed on the right end of the base core 61, and the slide cores 62 c and 62 d are disposed on the left side of the base core 61. The slide cores 62a to 62d have a slidable pedestal portion 621 and first and second nestings 622 and 623 that can be attached to and detached from the parting surface of the pedestal portion 621. The first nest 622 is provided with a protruding surface 624 for forming the opening 251. On the other hand, the second nesting 623 is not provided with the protruding surface 624. The pedestal portion 621 is configured to be slidable to a position where the protruding surface 624 contacts the base core 61 in a state where the mold 6 is closed.

  Then, as shown in FIG. 5, when the first insert 622 is attached to the slide cores 62c and 62d and the second insert 623 is attached to the slide cores 62a and 62b, the slide core 62c, The protruding surface 624 contacts the base core 61 on the 62d side, and a space is provided between the protruding core 624 and the base core 61 on the slide cores 62a and 62b side. Therefore, when injection molding is performed in this state, an opening 251 is formed on the slide cores 62c and 62d side because the resin does not flow into the protruding surface 624. On the other hand, on the slide cores 62a and 62b side, the resin flows into the space portion, so the opening 251 is not formed. As a result, the upper lid main body 25 for left opening as shown in FIG. 3 is formed.

Further, when the upper lid main body 25 for rightward opening as shown in FIG. 2 is formed, the first insert 622 having the projecting surface 624 is attached to the slide cores 62a and 62b, and the projecting surfaces are provided on the slide cores 62c and 62d. A second insert 623 that does not have 624 may be attached.
By using the molds 6 as shown in FIG. 6, the number of molds 6 for obtaining the configuration of the present invention can be reduced, and the initial investment amount can be suppressed.

Next, an assembly example of the front door 2 will be described.
In the assembly example of the front door 2, as shown in FIG. 2, the door outer plate 21 and the door rear plate 22 are first engaged by fitting engagement grooves 221 into the door outer plate 21. Then, the door lower lid 23 is attached by fitting the groove portion 231 into the lower ends of the engaged door outer plate 21 and door rear plate 22.
Further, the upper lid bearing 24 is configured by attaching upper lid bearing portions 26 a and 26 b to both ends of the back surface of the upper lid main body portion 25. Thereafter, the groove 241 (FIG. 4B) is fitted into the upper ends of the engaged door outer plate 21 and door rear plate 22 to attach the door upper lid 24. Thereafter, a heat insulating material is injected into the interior from the inlet 222 of the door back plate 22. Thereby, the front door 2 as shown in FIG. 6 can be comprised. The inlet 222 is concealed with a decorative label (not shown).

In FIG. 2, the upper lid bearing portion 26 b attached to the side where the opening 251 of the upper lid main body portion 25 is not formed (the right side in FIG. 2) does not function in use. However, the upper lid body portion 25 and the two upper lid bearing portions 26a, 26b constitute the groove portion 241 of the door upper lid 24, and the heat insulating material injected into the front door 2 may flow out. It is necessary to attach the upper lid bearing portion 26b which does not function.
Further, when urethane foam is used as the heat insulating material, there is an adhesive force. However, since the door back plate 22 is made of resin, it cannot be bonded. However, the left and right sides of the door back plate 22 are fitted into the door outer plate 21 by the engagement grooves 221, and the upper and lower sides are configured to fit the groove portions 231 and 241 of the door lower lid 23 and the door upper lid 24. It is possible to prevent the exfoliation of the heat insulating material later.

Next, a configuration example of the hinge mechanism 3 will be described.
The hinge mechanism 3 supports the front door 2 at the upper part so as to be rotatable with respect to the heat insulating container 1. As shown in FIGS. 1 and 7, the hinge mechanism 3 includes a rotating shaft support portion 31, a rotating shaft 32, and a lid 33.

  The rotating shaft support portion 31 is made of a resin member (for example, ABS resin), and connects the front door 2 to the heat insulating container 1 through the rotating shaft 32. As shown in FIG. 7, the rotating shaft support portion 31 is provided with an attachment portion 311 that can be attached to the insertion port 11 of the heat insulating container 1. The attachment portion 311 is provided with a screw hole 312 used when the rotary shaft support portion 31 is fixed. Further, a rib insertion tube portion 313 that can be fitted into the rib 111 of the insertion port 11 is provided on one surface of the attachment portion 311 so as to extend in the insertion direction. An insertion portion 314 that can be inserted into the opening 251 of the front door 2 is provided on the other surface of the attachment portion 311. Further, the insertion portion 314 is provided with a through hole 315 through which the rotation shaft 32 is inserted after being inserted into the opening 251 of the front door 2. In addition, the rotating shaft support portion 31 is configured to be symmetrical on the front and back, and is configured to be used for both the right opening and the left opening.

  As shown in FIG. 1B, the rotary shaft 32 can be rotatably inserted from the insertion hole 252 of the front door 2 into the support hole 261 through the through hole 315. The rotating shaft 32 is made of metal (iron bar).

  As shown in FIG. 7, the lid 33 is made of a resin member, has a support portion 331 that can support the rotating shaft 32, and can be fitted into the insertion hole 252 of the front door 2. As shown in FIG. 1 (a), the same lid 33 is also fitted into the insertion hole 252 on the side where the hinge mechanism 3 is not attached (the right side in FIG. 1 (a)), so that the design has symmetry. It is Further, by changing the color of the lid 33 on the side on which the hinge mechanism 3 is attached to the surrounding part, it is possible to make the user easily recognize the opening / closing direction of the door.

Next, a configuration example of the rotation mechanism 4 will be described.
The rotating mechanism 4 supports the front door 2 at the lower part so as to be rotatable with respect to the heat insulating container 1. As shown in FIGS. 1 and 7, the rotating mechanism 4 has a bearing portion 41 and a rotating shaft 42.

The bearing portion 41 is made of a resin member (for example, nylon resin) and can be inserted into the insertion hole 232 of the front door 2.
The rotating shaft 42 is made of a resin member (for example, POM resin) and rotatably connects the front door 2 and the heat insulating container 1. An insertion portion 421 that can be inserted into the insertion hole 14 of the front leg portion 13 is provided at one end of the rotating shaft 42, and an insertion portion 422 that can be attached to the bearing portion 41 is provided at the other end.
In addition, the bearing part 41 and the rotating shaft 42 are used for both right opening and left opening.

  In the present invention, the rotating shaft 32 of the hinge mechanism 3 is made of metal, and even if the upper lid bearing portions 26a and 26b are made of ABS resin, it is difficult for noise to be generated during rotation. On the other hand, it has been empirically found that if the rotating shaft 42 of the rotating mechanism 4 is made of POM resin and the bearing portion 41 is made of ABS resin, abnormal noise is likely to occur during rotation. On the other hand, it has also been found that a combination of a POM resin member and a nylon resin member hardly generates abnormal noise. Therefore, in the present invention, a structure in which a bearing portion 41 made of nylon resin can be attached to the door lower lid 23 is adopted. In addition, by making the rotating shaft 42 of the rotating mechanism 4 made of POM resin, it is possible to add a function (automatic closing function) that automatically closes about 10 ° before the front door 2 closes.

Next, an example of attaching the front door 2 to the heat insulating container 1 will be described.
In the example of attaching the front door 2 to the heat insulating container 1, as shown in FIG. 1A, first, the bearing portion 41 is attached to the insertion hole 232 (FIG. 6D) on the lower surface of the front door 2. Further, the rotating shaft 42 is attached to the insertion hole 14 of the heat insulating container 1.

  Further, as shown in FIG. 8, the attachment portion 311 of the rotating shaft support portion 31 is attached to the insertion port 11 of the heat insulating container 1. At this time, attachment is performed so that the rib insertion tube portion 313 of the rotating shaft support portion 31 is fitted into the rib 111. Then, using the tapping screw 5, the rotary shaft support 31 is fixed to the heat insulating container 1 through the screw holes 112 and 312.

And as shown in FIG. 1, the bearing part 41 attached to the front door 2 is engage | inserted by the rotating shaft 42 attached to the heat insulation container 1. As shown in FIG. Further, the insertion portion 314 of the rotating shaft support portion 31 attached to the heat insulating container 1 is inserted into the opening 251 of the front door 2. Then, the rotary shaft 32 is inserted from the insertion hole 252 to the support hole 261 through the through hole 315. Thereafter, the lid 33 is fitted into the insertion hole 252.
As described above, the front door 2 can be assembled to the heat insulating container 1. In the case of the left opening, the attachment is as shown in FIG.

  In the heat insulating container 1 shown in the figure, the space for attaching the rotating shaft support portion 31 is limited by the chamfered shape provided in the design and the groove shape into which the outer sheet metal of the heat insulating container 1 is inserted. Can only be obtained. Therefore, only a small screw (M3 or the like) can be used as the tapping screw 5 for attaching the rotating shaft support 31. Therefore, for example, when an object falls while the front door 2 is opened, sufficient strength cannot be obtained only by screw fixing against stresses other than the rotational operation of the front door 2. Therefore, in the present invention, the rib 111 is provided in the insertion port 11 of the heat insulating container 1, and the rib insertion cylinder portion 313 that can be fitted into the rib 111 is provided in the rotating shaft support portion 31. Here, the gap between the rib insertion tube portion 313 and the rib 111 is set to about 0.05 mm. As a result, the inner wall of the insertion port 11 and the outer wall of the rib insertion tube portion 313 or the rib insertion tube portion 313 at a point of time when the tapping screw 5 is deformed smaller than the tapping screw 5 is damaged with respect to a stress that causes the tapping screw 5 to be deformed. And the rib 111 abut. As a result, even when the small tapping screw 5 is used, the load can be received by the rib 111 and the rib insertion cylinder portion 313.

  In addition, in the above, it demonstrated using the refrigerator which cools as a storage. However, the present invention is not limited to this, and the configuration of the present invention can be similarly applied to a warm storage room that performs heat insulation.

As described above, according to the first embodiment, the front member is a box-shaped member that is open, the heat insulating container 1 having the insertion port 11 at the top of the front surface, and the opening 251 provided at the top of the back surface. The front door 2 having the insertion hole 252 provided in communication with the opening 251 on the upper surface and the support hole 261 provided facing the insertion hole 252 across the opening 251 is insulated from the front door 2. A hinge mechanism 3 that supports the container 1 at the upper part so as to be rotatable, and a rotating mechanism 4 that supports the front door 2 at the lower part so as to be rotatable relative to the heat insulating container 1. 11 is provided with an insertion portion 314 that can be inserted into the opening 251 on one surface, and the rotation shaft support portion 31 provided with the through hole 315 in the insertion portion 314, and the insertion hole 252 through the through hole. 315 rotatably inserted into the support hole 261 The rotary shaft 32 and the support portion 331 that can support one end of the rotary shaft 32 and the lid 33 that can be fitted into the insertion hole 252 are provided around the hinge mechanism 3 with respect to the conventional configuration. The opening and the concealment part can be reduced, and the appearance can be improved.
Further, the hinge mechanism 3 can be configured to be used for both the right opening and the left opening by separating the rotating shaft support 31 and the rotating shaft 32. In addition, with the separation structure, the opening area necessary for the insertion hole 252 on the upper surface of the front door 2 is the area necessary for inserting the rotating shaft 32 at the minimum, and a tool for replacing the shaft is inserted at the maximum. The area required for this is sufficient, and the size can be greatly reduced compared to the conventional configuration. Moreover, it becomes cheaper than a conventional structure also as a symmetrical appearance. Moreover, by setting it as a separation structure, the opening area required for the opening part 251 of the front door 2 is necessary in order not to prevent the area necessary for inserting the rotating shaft support part 31 and the rotation of the front door 2. It becomes the area.

  Further, the front door 2 has a door main body portion (door outer plate 21, door rear plate 22 and door lower lid 23) and a door upper lid 24 which constitutes an upper portion of the front door 2 and can be attached to the door main body portion. The door upper lid 24 is a box-shaped member having an open rear surface, and can be attached to the upper lid main body portion 25 provided with the opening 251 and the insertion hole 252 from the rear surface, and the support hole 261. Since the front door 2 and the hinge mechanism 3 are opened and closed, a space where the front door 2 and the hinge mechanism 3 do not interfere is secured when the storage is opened and closed. In consideration of the distance, a design that minimizes the opening area around the hinge mechanism 3 is possible.

  Further, the door upper lid 24 is formed with a groove portion 241 that can be attached to the door main body portion in a state where the upper lid bearing portions 26a and 26b are attached to the upper lid main body portion 25. Therefore, the door upper lid 24 is formed at the end of the door upper lid 24 by resin molding. The opening part 251 can be formed and the attachment space | interval of the heat insulation container 1 and the front door 2 can be narrowed.

  The upper lid body 25 is resin-molded using the mold 6, and the mold 6 has a base core 61 that molds a portion of the upper lid body 25 excluding the opening 251 and an opening 251 of the upper lid body 25. The first nest 622 having a projecting surface 624 for molding the opening 251 and the second nest 623 not having the projecting surface 624 can be interchanged, and the mold 6 is closed. Since the slide cores 62a to 62d are slidable to a position where the projecting surface 624 contacts the base core 61, the common mold is used regardless of whether the upper lid body 25 is opened right or left. 6 can be resin-molded, and the initial investment can be suppressed.

  Further, since the insertion port 11 has a rib 111 inside, and the rotation shaft support portion 31 has a rib insertion cylinder portion 313 that can be fitted into the rib 111 on the surface opposite to the insertion portion 314, the rotation shaft support portion 31 is supported. Even when the attachment space of the portion 31 is narrow, the rib 111 and the rib insertion tube portion 313 can receive a load.

  In addition, since the rotary shaft support portion 31 is configured to be used for both the case where the front door 3 is opened to the right and the case where the front door 3 is opened to the left, resin molding can be performed using a common mold.

  The rotating mechanism 4 has a bearing portion 41 that can be attached to the front door 2 and a rotating shaft 42 that has one end attached to the heat insulating container 1 and the other end that can be attached to the bearing portion 41. The bearing part 41 and the rotating shaft 42 made of POM resin can be used, and an automatic closing function can be added to the front door 2.

  Further, since the rotating mechanism 4 is configured to be used for both the case where the front door 3 is opened to the right and the case where the front door 3 is opened to the left, it is possible to perform resin molding using a common mold.

Embodiment 2. FIG.
In the first embodiment, the case where the upper lid main body portion 25 is molded for right opening or left opening using the common mold 6 has been described. However, in this case, for example, as shown in FIG. 2, an upper lid bearing portion 26b that does not function in use is required, and the number of parts increases. Therefore, for example, as shown in FIG. 10, the upper lid main body portion 25 for right opening and the upper lid main body portion 25 for left opening may be formed as dedicated parts, and the upper lid bearing portions 26a and 26b may be formed as a single unit. In this case, the configuration other than the configuration of the door upper lid 24 is the same as the configuration of the first embodiment, and the description thereof is omitted.

  When the storage is configured using the upper lid body 25 which is a dedicated part shown in FIG. 10, the upper lid bearings 26 a and 26 b may be single, so that the storage 1 shown in the first embodiment is one. The number of parts per unit is reduced and the cost is reduced. However, since the upper lid main body portion 25 is a dedicated component, the number of molds 6 of the upper lid main body portion 25 is increased by one as compared with the configuration of the first embodiment, and the initial investment amount is increased.

  Further, in the first embodiment, the upper lid bearing portions 26a and 26b can be molded with one mold 6 as a set. On the other hand, since the number of orders for right-opening and left-opening generally does not become the same, in the case of Embodiment 2, the left and right independent molds 6 are required for the upper lid bearing portions 26a and 26b. A method of setting the upper lid body portion 25 and the upper lid bearing portion 26a for right opening and the upper lid body portion 25 and the upper lid bearing portion 26b for left opening can be considered, but there is a difference in product weight. For this reason, it is considered that the handling of the resin runner becomes complicated and it is often difficult to set molding conditions.

  As described above, according to the second embodiment, the upper lid body portion 25 has the opening 251 on one end side, and one upper lid bearing portion 26a, 26b is provided. On the other hand, the number of parts per unit can be reduced.

Embodiment 3 FIG.
In the first embodiment, the case where the upper lid main body portion 25 is molded for right opening or left opening using the common mold 6 has been described. However, the present invention is not limited to this. For example, as shown in FIG. 11, the upper lid main body portion 25 in which the opening portions 251 are formed on both end sides may be used. In this case, the configuration other than the configuration of the upper lid main body 25 is the same as the configuration of the first embodiment, and the description thereof is omitted.

  As shown in FIG. 11, when the left and right upper lid main body portion 25 is configured, openings 251 through which the insertion portions 314 of the rotary shaft support portion 31 can be inserted are formed on the left and right sides of the back surface. Further, when the left and right upper lid body 25 is used, the concealment mechanism 7 is attached to the opening 251 and the insertion hole 252 on the side where the hinge mechanism 3 is not attached, thereby concealing.

The concealment mechanism 7 includes a back cover 71, a fixed shaft 72, and a lid 73, as shown in FIGS.
The back cover 71 is configured to be fitted into the opening 251 of the front door 2. The back cover 71 is provided with an insertion portion 711 that can be inserted into the opening 251 on the back surface. The insertion portion 711 is provided with a through hole 712 into which the fixed shaft 72 is inserted.

The fixed shaft 72 fixes the back cover 71. The fixed shaft 72 is inserted into the support hole 261 from the insertion hole 252 through the through hole 712.
The lid 73 has a support portion 731 capable of supporting one end of the fixed shaft 72 and can be fitted into the insertion hole 252 of the front door 2.

And in the structure of Embodiment 3, before attaching the front door 2 to the heat insulation container 1, the preliminary assembly for making the front door 2 for right opening or left opening is performed.
In this preliminary assembly, as shown in FIGS. 12 and 13, the opening 251 and the insertion hole 252 on the side where the hinge mechanism 3 is not attached are concealed by the concealing mechanism 7 with respect to the front door 2. At this time, first, the back cover 71 is fitted into the opening 251 on the side where the hinge mechanism 3 of the front door 2 is not attached. At this time, the insertion is performed so that the insertion portion 711 of the back cover 71 is inserted into the opening 251. Then, the fixed shaft 72 is inserted from the insertion hole 252 on the side where the hinge mechanism 3 is not attached to the support hole 261 through the through hole 712. Then, the lid 73 is fitted into the insertion hole 252. Thereby, the front door 2 can be used for opening right or opening left.

In the third embodiment, the concealment mechanism 7 is a dedicated part for right opening and left opening, so that the initial investment amount is larger than that of the first embodiment by the amount of the mold. However, the amount is less than that of the second embodiment.
In addition, when it is left to the end user to select whether to open right or left, two sets of concealment mechanisms 7 need to be provided for each storage unit, so the left and right set can be removed. Is possible. However, in this case, the number of parts increases (increase by 3 including the fixed shaft 72), so that the manufacturing cost is increased compared to the first and second embodiments. Further, if the shaft position is adjusted, the left and right can be used, but there is a problem in design because a restriction occurs in the interval between the heat insulating container 1 and the front door 2.

  As described above, according to the third embodiment, the upper lid body 25 has the opening 251 and the insertion hole 252 at both ends, and can be attached to the opening 251 and the insertion hole 252 to which the hinge mechanism 3 cannot be attached. The concealment mechanism 7 is provided with an insertion portion 711 that can be inserted into the opening 251 on one surface, a through hole 712 is provided in the insertion portion 711, and a back surface that can be fitted into the opening 251. The cover has a fixed shaft 72 that can be inserted into the support hole 261 from the insertion hole 252 through the through hole 712 of the back cover 71, and a support portion 731 that can support one end of the fixed shaft 72, and is fitted into the insertion hole 252. Since it has the possible lid | cover 73, it becomes possible to leave to an end user whether the front door 2 is made to open to the right or left with respect to Embodiment 1. FIG.

  Further, within the scope of the present invention, the invention of the present application can be freely combined with each embodiment, modified with any component in each embodiment, or omitted with any component in each embodiment. .

  DESCRIPTION OF SYMBOLS 1 Thermal insulation container, 2 Front door, 3 Hinge mechanism, 4 Rotation mechanism, 5 Tapping screw, 6 Mold, 7 Concealment mechanism, 11 Insertion port, 12 Cover, 13 Front leg part, 14 Insertion hole, 15 Cap, 21 Door outer plate , 22 Door back plate, 23 Door lower lid, 24 Door upper lid, 25 Upper lid body portion, 26a, 26b Upper lid bearing portion, 31 Rotating shaft support portion, 32 Rotating shaft, 33 Lid, 41 Bearing portion, 42 Rotating shaft, 61 Base Core, 62a to 62d Slide core, 71 Back cover, 72 Rotating shaft, 73 Lid, 111 Rib, 112 Screw hole, 221 Engaging groove, 222 Inlet, 231 Groove, 232 Insertion hole, 241 Groove, 251 Opening, 252 Insertion hole, 261 Support hole, 621 Base, 622, 623 First and second inserts, 624 Projection surface, 311 Mounting part, 312 Screw , 313 rib insertion tube, 314 insertion portion 315 through hole, 331 support, 421 insertion portion 422 insertion portion 711 insertion portion 712 through hole, 731 support.

Claims (10)

A box-shaped member whose front is opened, and a heat-insulating container having an insertion port at the top of the front,
A front door having an opening provided in an upper portion of the back surface, an insertion hole provided in communication with the opening on the upper surface, and a support hole provided to face the insertion hole across the opening; ,
A hinge mechanism that supports the front door at the upper part so as to be rotatable with respect to the heat insulating container;
A rotation mechanism that supports the front door at the lower part so as to be rotatable with respect to the heat insulating container,
The hinge mechanism is
A rotary shaft support portion that is attachable to the insertion port, and is provided with an insertion portion that can be inserted into the opening on one surface, and a through hole is provided in the insertion portion,
A rotation shaft that can be rotatably inserted into the support hole from the insertion hole via the through hole;
A storage having a support portion that can support one end of the rotating shaft and a lid that can be fitted into the insertion hole. The front door is
The door body,
The upper part of the front door is configured, and has a door upper lid that can be attached to the door body part,
The door lid is
A box-shaped member having an open back surface, and an upper lid main body provided with the opening and the insertion hole;
The storage according to claim 1, further comprising: an upper lid bearing portion that can be attached to the upper lid main body portion from the back surface and is provided with the support hole. The storage according to claim 2, wherein the door upper lid includes a groove portion that can be attached to the door main body portion in a state where the upper lid bearing portion is attached to the upper lid main body portion. The upper lid body is resin-molded using a mold,
The mold is
A base core for molding a portion excluding the opening of the upper lid body,
A first nesting having a projecting surface for molding the opening and a second nesting not having the projecting surface can be interchanged with each other, wherein the first nesting has a projecting surface for molding the opening. The storage according to claim 2 or 3, further comprising a slide core that is slidable to a position where the protruding surface is brought into contact with the base core when the mold is closed. The upper lid body has the opening on one end side,
The storage according to claim 2 or 3, wherein one upper lid bearing portion is provided. The upper lid body has the opening and the insertion hole on both end sides,
A concealing mechanism attached to the opening and the insertion hole to which the hinge mechanism is not attached;
The concealment mechanism is
On one surface, an insertion part that can be inserted into the opening is provided, a through hole is provided in the insertion part, and a back cover that can be fitted into the opening,
A fixed shaft that can be inserted into the support hole from the insertion hole through the through hole of the back cover;
The storage according to claim 2, further comprising: a support portion that can support one end of the fixed shaft, and a lid that can be fitted into the insertion hole. The insertion port has a rib inside,
The said rotating shaft support part has a rib insertion cylinder part which can be engage | inserted by the said rib in the surface on the opposite side to the said insertion part. The any one of Claims 1-6 characterized by the above-mentioned. Storage for 8. The rotating shaft support portion according to claim 1, wherein the front door is configured to be used for both a right opening and a left opening. 9. Storage. The rotation mechanism is
A bearing portion attachable to the front door;
The storage according to any one of claims 1 to 8, wherein one end is attached to the heat insulating container and the other end has a rotating shaft attachable to the bearing portion. The storage according to any one of claims 1 to 9, wherein the rotating mechanism is configured to be used for both a case where the front door is for a right opening and a case for a left opening. .

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