JP6369982B2 - Opening / closing door support device, opening / closing door assembly method, and pin holder - Google Patents

Description

  The present invention relates to a support device that supports an opening / closing door that opens and closes an opening of a storage body of a storage.

  Conventionally, an opening / closing door comprising a hinge pin attached to a storage body of a storage such as a refrigerator or a freezer, and a pin holder attached to an opening / closing door for opening / closing the opening of the storage body, and having a cylindrical portion into which the hinge pin is inserted Is known (for example, see Patent Document 1).

  By the way, the opening / closing door of a storage such as a refrigerator or freezer is provided between the seal packing and the side wall of the opening / closing door to prevent freezing of the sealing packing provided on the rotating end side and the occurrence of condensation. Some have an electric heater. Generally, in an open / close door equipped with an electric heater, the hinge pin is formed in a cylindrical shape and does not include a blocking wall that closes the inner hole of the cylindrical portion of the pin holder. Part and a protective pipe and are connected to an electric heater.

  On the other hand, in the case of an open / close door that does not include an electric heater, in order to prevent the foaming agent from leaking out from the cylindrical portion of the pin holder when the foaming agent is injected into the inside of the open / close door and foamed, It is necessary to block the inner hole of the part with a blocking wall.

  Therefore, in order to make the pin holder common between the opening / closing door provided with the electric heater and the opening / closing door not provided with the electric heater, Patent Document 1 provides a blocking wall for closing the inner hole in the cylindrical portion of the pin holder, It is described that a thin-walled portion having a predetermined shape and a thick-walled portion that remains when the thin-walled portion is punched and punched, and the thin-walled portion is punched when used for an open / close door provided with an electric heater.

JP 2002-098472 A

  The above-mentioned Patent Document 1 does not specifically describe how to punch out the thin portion, but if it is punched out, it is assumed that a screw driver or a punch is used. However, when a screw driver or a punch is used, there are the following problems.

  For example, as shown in FIG. 15, if the tip of the screw driver 80 is applied to the thin portion 2001 of the hinge pin 2000 described in Patent Document 1 and struck with a hammer or the like, the portion where the tip of the screw driver 80 contacts is thin. As a result, the screw driver 80 may penetrate. That is, in this case, only a small hole corresponding to the outer diameter of the screw driver 80 is formed in the thin portion 2001, and it is difficult to punch out the entire thin portion 2001. That is, it is difficult to make a large hole.

  On the other hand, as shown in FIG. 16, a cylindrical punch base 82 whose outer diameter is smaller than the inner diameter of the cylindrical portion 2002 and whose inner diameter is larger than the diameter of the thin-walled portion 2001 is placed under the thick-walled portion 2003, A method of punching out the thin portion 2001 from above with a punch 81 having a diameter that is the same as or slightly smaller than the diameter of the thin portion 2001 is also conceivable. With this method, it is considered possible to make a large hole. However, in this method, a punch table 82 or a punch 81 that satisfies such a condition must be used. That is, in this method, a dedicated tool for punching out the thin portion 2001 must be used.

  In the present specification, a technique for making a large hole in a closed wall using a general-purpose tool such as a screw driver is disclosed.

  The open / close door support device disclosed in this specification is a support device that supports an open / close door that opens and closes an opening of a storage body of a storage, and is attached to the open / close door with a hinge pin attached to the storage body. A pin holder having a cylindrical portion into which the hinge pin is inserted, the cylindrical portion having a blocking wall that closes an inner hole, and the blocking wall includes a first blocking portion having a predetermined shape And a second closing portion that surrounds the first closing portion over the entire circumference and is thinner than the first closing portion.

  According to the above support device, since the first closing portion is thicker than the second closing portion, for example, when the tip of the screw driver is hit against the first closing portion and hit with a hammer or the like, the first closing portion is received from the hammer. The concentrated force concentrates on the second obstructing portion, which is thin, thereby punching out the entire first obstructing portion. Thus, according to said support apparatus, a big hole can be drilled using general purpose tools, such as a screwdriver. The large hole here means a hole corresponding to the first closed portion.

  Moreover, the assembly method of the open / close door disclosed in this specification is an open / close door assembly method for opening / closing the opening of the storage body of the storage, and an attaching step of attaching a pin holder having a cylindrical portion to the open / close door And an insertion step of inserting a hinge pin provided in the storage body into the cylinder part, wherein the cylinder part has a blocking wall that closes an inner hole, and the blocking wall has a first shape of a predetermined shape. And a second closed portion that surrounds the first closed portion over the entire circumference and is thinner than the first closed portion, and from the insertion step Before, it includes a punching step of punching out the first blocking portion.

  According to the above assembly method, a large hole can be formed using a general-purpose tool such as a screwdriver.

  Further, the pin holder disclosed in this specification is a pin holder attached to an opening / closing door that opens and closes an opening of a storage body of a storage, and includes a cylindrical portion and a blocking wall that closes an inner hole of the cylindrical portion. The closed wall is a first closed portion having a predetermined shape, and a second closed portion surrounding the first closed portion over the entire circumference, and is thinner than the first closed portion. And a closed portion.

  According to the above pin holder, a large hole can be formed using a general-purpose tool such as a screwdriver.

  Further, the open / close door support device disclosed in the present specification is a support device that supports the open / close door that opens and closes the opening of the storage body of the storage, and includes a hinge pin attached to the storage body and the opening / closing door. And a pin holder having a cylindrical portion into which the hinge pin is inserted. The cylindrical portion has a blocking wall that closes an inner hole, and the blocking wall is a surface facing the hinge pin side. A first recess formed, and an annular second recess formed on a surface opposite to the surface, and a second recess surrounding the first recess.

  According to said support apparatus, a big hole can be drilled using general purpose tools, such as a screwdriver.

  Moreover, the assembly method of the open / close door disclosed in this specification is an open / close door assembly method for opening / closing the opening of the storage body of the storage, and an attaching step of attaching a pin holder having a cylindrical portion to the open / close door And an insertion step of inserting a hinge pin provided on the main body into the cylindrical portion, the cylindrical portion having a blocking wall that closes an inner hole, and the blocking wall faces the hinge pin side. A first recess formed on the surface and an annular second recess formed on the surface opposite to the surface, the second recess surrounding the first recess. And before the said insertion process, the punching process which punches out the part enclosed by the said 2nd recessed part in the said obstruction | occlusion wall from the surface side in which the said 1st recessed part is formed is included.

  According to the above assembly method, a large hole can be formed using a general-purpose tool such as a screwdriver.

  Further, the pin holder disclosed in this specification is a pin holder attached to an opening / closing door that opens and closes an opening of a storage body of a storage, and includes a cylindrical portion and a blocking wall that closes an inner hole of the cylindrical portion. The closing wall is an annular second recess formed on a surface opposite to the first recess and the surface on which the first recess is formed. A second recess surrounding the periphery.

  According to the above pin holder, a large hole can be formed using a general-purpose tool such as a screwdriver.

  According to the support device for the opening / closing door, a large hole can be formed in the closing wall using a general-purpose tool such as a screwdriver.

The front view of the refrigerator which concerns on Embodiment 1. FIG. Sectional drawing of an opening-and-closing door. Sectional drawing which expands and shows a support apparatus. Sectional drawing of a hinge bracket. The top view of a pin holder. Sectional drawing of the pin holder before being attached to an opening-and-closing door. Sectional drawing which applied the support apparatus to the opening / closing door which is not equipped with an electric heater. Sectional drawing of the obstruction | occlusion wall which concerns on Embodiment 2. FIG. Sectional drawing of the door which concerns on the related technique 1. FIG. Sectional drawing of the pin holder which concerns on related technology 2. FIG. Sectional drawing of a pipe connection part. Sectional drawing which shows the modification of the pipe connection part which concerns on the related technique 2. FIG. Sectional drawing of the pipe holder (before connection pipe insertion) which concerns on related technology 3. FIG. Sectional drawing of a pipe holder (after a connection pipe insertion). The schematic diagram which shows a mode that the thin part of the conventional pin holder is punched out with a screw driver. The schematic diagram which shows a mode that the thin part of the conventional pin holder is punched out with a punch.

<Embodiment 1>
The first embodiment will be described with reference to FIGS.
(1) Structure of refrigerator With reference to FIG. 1, the refrigerator 1 as a storage which concerns on Embodiment 1 is demonstrated. The refrigerator 1 has an open / close door that opens and closes in a double door manner, and includes a cabinet body 20 having an opening and four open / close doors 30A to 30D that open and close the opening. The storage body 20 is divided into two upper and lower storage chambers, and correspondingly, the opening of the storage body 20 is also divided into two upper and lower stages.

  However, the center body 20 is not provided with the center pillar. The center pillar refers to a columnar member that extends vertically at the center in the left-right direction of the opening. That is, the refrigerator 1 according to the present embodiment is center pillarless.

  Of the open / close doors 30, the upper left and right open / close doors 30 </ b> A and 30 </ b> B open and close the upper opening of the cabinet body 20, and the lower left and right open / close doors 30 </ b> C and 30 </ b> D open and close the lower opening of the cabinet body 20. The left open / close doors 30 </ b> A and 30 </ b> C are rotatably supported on the left side of the main body 20 by support devices 40 (see FIG. 3), which will be described later, on the left and upper ends. Similarly, the open / close doors 30B and 30D on the right side are rotatably supported on the right side of the storage body 20 by upper and lower ends of the right side thereof by a support device 40 described later.

  Each open / close door 30 is formed in a box shape having an outer panel, an inner panel, an upper wall portion, a bottom wall portion, a left side wall portion, and a right side wall portion, and is filled with a heat insulating material 60 (see FIG. 2). Has been.

  Each of the left open / close doors 30A and 30C is provided with seal packings 31A and 31C extending in the vertical direction on the right side which is the rotating end side. Similarly, the seal doors 31B and 31D extending in the vertical direction are provided at the left end, which is the rotation end, on the right open / close doors 30B and 30D. When each open / close door 30 is closed, the left and right open / close doors 30A, 30B and the seal packings 31 of both open / close doors 30C, 30D are elastically contacted with each other, so that the open / close doors 30A, 30B and the open / close doors 30C, 30D The space is hermetically sealed.

  An electric heater (not shown) extending in the vertical direction is disposed inside each seal packing 31. The electric heater heats the seal packing 31 to prevent the seal packing 31 from freezing and dew condensation.

  Next, the internal structure of the open / close door 30 will be described with reference to FIG. Here, the opening / closing door 30B will be described as an example. A pin holder 43 that is a part of a support device 40 described later is attached to the upper wall portion 32B of the opening / closing door 30B. The pin holder 43 is also attached to the lower side of the opening / closing door 30B, but the pin holder 43 attached to the lower side is omitted in FIG. Further, a short tubular pipe connecting portion 34B is formed on the left side wall portion 33B of the open / close door 30B by burring.

  The pin holder 43 and the pipe connecting portion 34B are connected by a protective pipe 50. The protective pipe 50 is for passing the lead wire 70 (see FIG. 3) for generating heat from the electric heater described above. The protective pipe 50 is formed by thermally bending a hard resin.

  Further, as described above, the heat insulating material 60 is filled in the open / close door 30B. The heat insulating material 60 is filled with a foaming agent injected into the inside of the opening / closing door 30B after the protective pipe 50 is assembled inside the opening / closing door 30B.

(2) Support Device Next, the support device 40 for the door 30 will be described with reference to FIGS. 3, 4, and 5. Since the support device 40 supporting each of the open / close doors 30A to 30D has the same configuration, the support device 40 supporting the open / close door 30B will be described as an example here. As shown in FIG. 3, the support device 40 includes a hinge bracket 41, a hinge pin 42, and a pin holder 43.

  As shown in FIG. 4, the hinge bracket 41 is formed in an L-shaped cross section having a horizontal plate portion 411 and a vertical plate portion 412. The vertical plate portion 412 is fixed to the upper right edge portion of the upper opening of the cabinet body 20 with screws.

  The hinge pin 42 is a metallic cylindrical member, and a flange 421 is formed on the outer periphery. The hinge pin 42 is fitted into a fitting hole formed in the horizontal plate portion 411 of the hinge bracket 41 from below, and is fixed to the horizontal plate portion 411 by caulking the head.

  Returning to FIG. The pin holder 43 supports the hinge pin 42, and a cylindrical portion 431 into which the hinge pin 42 is fitted and inserted is integrally formed. The inner peripheral shape of the cylindrical portion 431 substantially matches the outer peripheral shape of the hinge pin 42. As shown in FIG. 5, the pin holder 43 is formed in a pentagonal shape having a mountain shape on one end side when viewed from above, and a cylindrical portion 431 is formed in the mountain shape portion.

Returning to FIG. A fitting hole into which the cylindrical portion 431 is fitted and inserted is formed on the right side of the upper wall portion 32B of the opening / closing door 30B. The pin holder 43 is fixed to the upper wall portion 32 </ b> B by a rivet 44 in a state where the cylindrical portion 431 is fitted and inserted into the fitting hole.
The lead wire 70 is inserted into the inner hole of the hinge pin 42 and the inner hole of the cylindrical portion 431 of the pin holder 43, and is connected to the electric heater through the protective pipe 50.

(3) Pin Holder Before Attaching to Opening / Closing Door Next, the structure of the cylindrical portion 431 of the pin holder 43 before being attached to the opening / closing door 30 will be described with reference to FIG. As shown in FIG. 6, a blocking wall 432 that closes the inner hole is formed integrally with the cylindrical portion 431 of the pin holder 43 before being attached to the opening / closing door 30. The blocking wall 432 includes a disk-shaped first blocking portion 433, an annular second blocking portion 434 that surrounds the first blocking portion 433, and an annular third block that surrounds the second blocking portion 434. The closing part 435 is integrally formed.

  The second closing part 434 surrounds the first closing part 433 over the entire circumference. Similarly, the third closing portion 435 surrounds the second closing portion 434 over the entire circumference. Further, the second closing portion 434 is formed thinner than the first closing portion 433. The third closing part 435 is formed thicker than the second closing part 434.

  Prior to attaching the pin holder 43 to the open / close door 30, the operator hits the tip of the screw driver 80 against the first closing portion 433 and hits it with a hammer or the like as shown in FIG. (Punching process). As a result, a hole 436 is opened in the blocking wall 432 as shown in FIG. 3, and the lead wire 70 can be inserted.

  Next, the operator attaches the pin holder 43 to the open / close door 30 (attachment process), and then inserts the hinge pin 42 attached to the storage body into the cylindrical portion 431 (insertion process).

(4) Application to an open / close door without an electric heater FIG. 7 shows a case where the pin holder 43 is applied to an open / close door 90 without an electric heater. In general, a single-open refrigerator is not provided with an electric heater at the opening / closing door, and therefore it is not necessary to pass the lead wire 70. In general, even in a case of a double door type refrigerator, when the center pillar is provided, an electric heater is not provided on the open / close door, and therefore it is not necessary to pass the lead wire 70. When it is not necessary to pass the lead wire 70, it is not necessary to connect the protective pipe 50 to the cylindrical portion 431. When the protective pipe 50 is not connected to the cylindrical portion 431, if the first closing portion 433 is punched out, the foaming agent comes out from the cylindrical portion 431 when the foaming agent is foamed. Therefore, when the pin holder 43 is applied to the open / close door 90 that does not include an electric heater, the first closing portion 433 is used without being punched as shown in FIG.

(5) Effects of the Embodiment According to the support device 40 according to the first embodiment described above, the first closing portion 433 is thicker than the second closing portion 434 as shown in FIG. When the tip of 80 is applied to the first closing part 433 and hit with a hammer or the like, the force received from the hammer is concentrated on the second closing part 434 which is thin, thereby punching out the entire first closing part 433. It is.

  As described above, according to the support device 40 according to the first embodiment, a large hole can be formed using a general-purpose tool such as the screw driver 80. Here, the large hole means a hole corresponding to the first closing portion 433. Thereby, workability | operativity of the operation | work which makes a big hole in the obstruction | occlusion wall 432 can be improved.

<Embodiment 2>
Next, Embodiment 2 of the present invention will be described with reference to FIG.
As shown in FIG. 8, the closing wall 102 of the pin holder 100 according to the second embodiment has a first recess 103 formed on a surface facing the hinge pin 42 side (upper side in FIG. 8), and the surface is the opposite. And an annular second recess 104 formed on the side surface.

  Specifically, the first concave portion 103 is formed as a circular concave portion centering on the central axis of the inner hole of the cylindrical portion 101. The second recess 104 is formed as an annular recess that surrounds the entire periphery of the first recess 103. Here, the periphery of the first recess 103 means a region T between the first recess 103 and the second recess 104. In other words, an interval (corresponding to the region T) is provided between the first recess 103 and the second recess 104 when viewed from the axial direction of the inner hole.

  As shown in FIG. 8, in this embodiment, the inner peripheral wall 105 of the cylindrical portion 101 also serves as the side wall of the second recess 104. As shown in FIG. 8, the bottom surface 106 of the second recess 104 is located above the bottom surface 107 of the first recess 103.

  When the pin holder 43 according to the second embodiment is used for an opening / closing door provided with an electric heater, a portion surrounded by the second recess 104 is punched from above by an operator. In the following description, the portion surrounded by the second recess 104 is referred to as the bottom wall 108.

  Next, effects of the second embodiment will be described. Here, first, the blocking wall 432 according to the first embodiment will be described as a comparative example. A load obtained by adding the load related to the first closing portion 433 (see FIG. 6) and the load related to the second closing portion 434 (see FIG. 6) of the closing wall 432 of Embodiment 1 by the foaming pressure of the foaming agent is the load F1. Then, in the closing wall 432 according to the first embodiment, the second closing portion 434 needs to be able to withstand the load F1 in order to prevent the second closing portion 434 from being destroyed by the foaming pressure. .

  However, if the second closing part 434 can withstand the load F1, it is necessary to apply a load larger than the load F1 when the first closing part 433 is punched out. That is, in the blocking wall 432 according to the first embodiment, the load for punching out the first blocking portion 433 is the load related to the first blocking portion 433 and the load related to the second blocking portion 434 by the foaming pressure of the foaming agent. It cannot be made smaller than the total load F1.

  On the other hand, as shown in FIG. 8, in the closed wall 102 according to the second embodiment, the region T is secured between the first recess 103 and the second recess 104, so that the bottom wall 108 is lowered. When a force is applied, the bottom wall 108 is supported from above by the wall 109 around the first recess 103. For this reason, a large force is required to destroy the bottom wall 108 from below. On the other hand, when a force is applied to the bottom wall 108 from above in FIG. 8, there is nothing to support the bottom wall 108 from below, so that the bottom wall 108 can be punched with a relatively small force.

  In the present embodiment, when the load applied to the bottom wall 108 by the foaming pressure is F2, the thickness of the bottom wall 108 and the thickness of the surrounding wall 109 are set so that the bottom wall 108 cannot be destroyed by the load F2. In addition, the width of the region T is set so that the bottom wall 108 is punched with a screw driver 80 with a force smaller than the load F2.

  According to the support device according to the second embodiment described above, by making the bottom wall 108 thick, it is possible to make a large hole in the blocking wall using a general-purpose tool such as the screw driver 80.

  Further, according to the support device 40, when the foaming agent is injected into the opening / closing door 30 and foamed, the bottom wall 108 is prevented from being destroyed by the load F2 received from the foaming pressure, and the bottom wall 108 is removed from the hinge pin 42 side. When punching, it can be punched with a force smaller than the load F2. Thereby, the workability | operativity of the operation | work which makes a big hole in the obstruction | occlusion wall 102 of the pin holder 100 can be improved more.

<Related technology 1>
Next, Related Technique 1 will be described with reference to FIG.
The related technology 1 is different from the first embodiment in the protection pipe. As described above, the protective pipe 50 (see FIG. 2) of the first embodiment is obtained by thermally bending a hard resin. Since the shape of such a protective pipe 50 is fixed, the protective pipe 50 may come off from the cylindrical portion 431 of the pin holder 43 or the pipe connecting portion 34 on the electric heater side by foaming pressure, or between the protective pipe 50 and the cylindrical portion 431, Alternatively, the foaming agent may leak from between the protective pipe 50 and the pipe connecting portion 34.

  For this reason, when such a protective pipe 50 is used, work such as bonding the protective pipe 50 to the cylindrical portion 431 and the pipe connecting portion 34, fixing with tape, or filling a putty is performed. Yes.

  On the other hand, the protection pipe 110 of the related technique 1 is a straight shape having elasticity formed of resin, and is assembled in a bent state as shown in FIG. Further, the pin holder 120 according to the related technique 1 is formed in a tapered shape that becomes smaller as the outer diameter of the cylindrical portion 121 goes downward. And the protection pipe 110 is connected with the pin holder 120 by inserting the cylinder part 121 inside.

  The pipe connection part 34 is the same as that of the first embodiment, and is formed by burring. The protective pipe 110 is connected to the pipe connecting portion 34 by inserting the pipe connecting portion 34 inside.

  When the protection pipe 110 having elasticity is connected in a bent state, the protection pipe 110 tries to return to a straight shape, so that the force F having the same size and the opposite direction is applied to the cylindrical portion 121 and the pipe connection portion 34. Works. When this force F is decomposed horizontally and vertically and considered as Fx and Fy, respectively, the end of the protective pipe 110 on the cylinder 121 side is Fy + μaFx (μa is the distance between the protective pipe 110 and the cylinder 121. It will not come off unless a force greater than (coefficient of friction) is applied. The same applies to the end portion on the pipe connecting portion 34 side, and it does not come off unless a force greater than Fx + μbFy (μb is a friction coefficient between the protective pipe 110 and the pipe connecting portion 34) is applied.

  Further, the protective pipe 110 is pressed against the tapered portion of the cylindrical portion 121 by the forces Fx and Fy, so that the opening edge of the protective pipe 110 is in close contact with the cylindrical portion 121 over the entire circumference, thereby preventing foam leakage. You can also

  According to the support device according to the related art 1 described above, the hardness, thickness, and thickness of the protective pipe 110 are determined so that the above-described forces Fx and Fy are suitable for practical use. Work such as filling can be omitted.

<Related technology 2>
Next, a related technique 2 of the present invention will be described with reference to FIGS.
Related technology 2 is a modification of related technology 1. As shown in FIG. 10, the pin holder 130 according to the related technique 2 has the protection pipe 110 having elasticity inserted inside the cylindrical portion 131. The inner peripheral surface of the cylindrical portion 131 is formed in a taper shape in which the inner diameter increases as it goes downward in FIG.

  Moreover, as shown in FIG. 11, in the related technique 2, the pipe holder 140 is attached around the pipe connection part 34 of the left side wall part 33B. The pipe holder 140 is made of resin and is attached to the left side wall 33B by a rivet (not shown).

  The pipe holder 140 has a cylindrical portion 141 into which the protective pipe 110 is inserted. The inner peripheral surface of the cylindrical portion 141 is formed in a tapered shape in which the inner diameter decreases as the pipe connecting portion 34 is approached.

  The pipe holder 140 includes a tapered portion 141A and a portion 141B on the opening 331B side formed in the left side wall portion 33B. The inner diameter of the portion 141B on the opening 331B side is larger than the inner diameter of the tapered portion 141A. Has been. As shown in FIG. 11, the pipe connection portion 34 is accommodated in a portion 141B on the pipe connection portion 34 side.

  The portion 141B on the opening 331B side may have a shape as shown in FIG. An opening 332B is formed in the left side wall portion 33B shown in FIG. The shape of the opening 332B is a circle. In the pipe holder 140 shown in FIG. 12, the inner diameter of the portion 141B on the opening 332B side is the same as the smallest inner diameter of the tapered portion 141A.

  According to the supporting device according to the related art 2 described above, the hardness, thickness, and thickness of the protective pipe 110 are determined so that the above-described forces Fx and Fy are suitable for practical use. Work such as filling can be omitted.

<Related technology 3>
Next, Related Art 3 of the present invention will be described with reference to FIGS.
As shown in FIG. 13, the related technique 3 differs in the shape of the pipe holder 150 by the side of an electric heater. The pipe holder 150 is a cylindrical member formed of a soft resin such as rubber. As shown in FIG. 13, an opening 333B is formed in the left side wall 33B according to the related art 3, and a pipe holder 150 is attached to the opening 333B. The shape of the opening 333B is circular.

  The outer diameter of the pipe holder 150 is smaller than the inner diameter of the opening 333B. Further, the inner diameter of the pipe holder 150 is smaller than the outer diameter of the protective pipe 50.

  Further, a flange portion 151 is formed on the outer periphery of one end side (left side in FIG. 13) of the pipe holder 150. On the other hand, the other end side (the right side in FIG. 13) of the pipe holder 150 is formed in a tapered shape that is inclined so as to open toward the inside of the opening / closing door 30B.

  As shown in FIG. 14, according to the pipe holder 150 according to Related Technology 3, when the end of the protective pipe 50 is press-fitted into the pipe holder 150 because the inner diameter is smaller than the outer diameter of the protective pipe 50, the protective pipe 50 and the pipe It is possible to suppress foam leakage between the protective pipe 50 and the pipe holder 150 by being in close contact with the holder 150. Further, when the end of the protective pipe 50 is press-fitted into the pipe holder 150, the pipe holder 150 is pushed and widened to close the opening 333B, thereby suppressing foam leakage between the pipe holder 150 and the left side wall 33B. it can. Thereby, operations such as bonding, tape fastening, and filling of putty can be omitted.

<Other embodiments>
The technology disclosed in the present specification is not limited to the embodiments described with reference to the above description and the drawings. For example, the following embodiments are also included in the technical scope.

  (1) In the first embodiment, the refrigerator 1 is described as an example of the storage, but the storage is not limited to the refrigerator 1. For example, the pin holder 43 can be shared by the refrigerator 1 and a heating device provided with a heating cabinet. More specifically, in the case of the refrigerator 1, the first closed portion of the first embodiment (or the bottom wall of the second embodiment) may be used by punching, and when used in a heating device, they may be used without being punched.

  (2) In the second embodiment, the case where the bottom surface 106 of the second recess 104 is above the bottom surface 107 of the first recess 103 as shown in FIG. On the other hand, the bottom surface 106 of the second recess 104 may be the same height as the bottom surface 107 of the first recess 103 or may be lower than the bottom surface 107 of the first recess 103.

  (3) In the second embodiment, the case where the inner peripheral wall 105 of the cylindrical portion 101 also serves as the side wall of the second recess 104 has been described as an example. On the other hand, a configuration in which the inner peripheral wall 105 of the cylinder portion 101 does not serve as the side wall of the second recess 104 may be employed.

DESCRIPTION OF SYMBOLS 1 ... Refrigerator, 20 ... Storage body, 30A-30D ... Opening / closing door, 40 ... Supporting device, 42 ... Hinge pin, 43 ... Pin holder, 90 ... Opening / closing door, 100 ..Pin holder, 101... Cylindrical portion, 102... Blocking wall, 103... First recess, 104... Second recess, 120. ... Pin holder, 131 ... Cylinder part, 431 ... Cylinder part, 432 ... Blocking wall, 433 ... First blocking part, 434 ... Second blocking part

Claims (3)

A support device for supporting an opening / closing door that opens and closes an opening of a storage body of a storage,
A hinge pin attached to the main body,
A pin holder attached to the open / close door, the pin holder having a cylindrical portion into which the hinge pin is inserted;
With
The cylindrical portion has a blocking wall for closing the inner hole,
The blocking wall is a first recess formed on a surface facing the hinge pin side, and an annular second recess formed on a surface opposite to the surface. It has a second recess surrounding,
The blocking wall is pressed from the opposite surface side by the foaming pressure of the foaming agent when foaming and filling the foaming agent into the open / close door,
A region is secured between the first recess and the second recess when viewed from the axial direction of the tube portion,
The thickness of the portion, and the thickness of the wall around the first recess so that the portion surrounded by the second recess cannot be destroyed by the force applied to the blocking wall by the foaming pressure of the foaming agent. And the width of the region is set so that when the part is punched out from the side facing the hinge pin, the width of the region is set . A method of assembling an opening / closing door that opens and closes the opening of the storage body of the storage,
An attaching step of attaching a pin holder having a cylindrical portion to the open / close door;
An insertion step of inserting a hinge pin provided in the storage body into the cylindrical portion;
Including
The cylindrical portion has a blocking wall for closing the inner hole,
The blocking wall is a first recess formed on a surface facing the hinge pin side, and an annular second recess formed on a surface opposite to the surface. A second recess surrounding the periphery,
The blocking wall is pressed from the opposite surface side by the foaming pressure of the foaming agent when foaming and filling the foaming agent into the open / close door,
A region is secured between the first recess and the second recess when viewed from the axial direction of the tube portion,
The thickness of the portion, and the thickness of the wall around the first recess so that the portion surrounded by the second recess cannot be destroyed by the force applied to the blocking wall by the foaming pressure of the foaming agent. Is set, and when the portion is punched out from the surface side facing the hinge pin side, the width of the region is set so as to punch out with a force smaller than the force,
A method of assembling the open / close door, comprising a punching step of punching a portion of the closing wall surrounded by the second recess from the surface side where the first recess is formed before the insertion step. A pin holder attached to an opening / closing door that opens and closes the opening of the storage body of the storage,
A tube part;
A blocking wall that blocks the inner hole of the cylindrical portion;
The closing wall is an annular second recess formed on a surface opposite to the surface on which the first recess and the first recess are formed, and the first recess have a second recess surrounding the,
The blocking wall is pressed from the opposite surface side by the foaming pressure of the foaming agent when foaming and filling the foaming agent into the open / close door,
A region is secured between the first recess and the second recess when viewed from the axial direction of the tube portion,
The thickness of the portion, and the thickness of the wall around the first recess so that the portion surrounded by the second recess cannot be destroyed by the force applied to the blocking wall by the foaming pressure of the foaming agent. There is set, and, when punching out the portion from the surface side of the first recess is formed that is set width of the region as Uchinukeru by the force smaller force, the pin holder.

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