Frame-shaped member and method for manufacturing frame-shaped member

Abstract

This frame-shaped member is obtained by connecting, by means of a fastening component, a first element extending in a first direction and a second element extending in a second direction. The first element has a first inclined surface at a first-direction end thereof and a first flat surface orthogonal to the first direction. The second element has a second inclined surface at a second-direction end thereof and a second flat surface orthogonal to the first direction. The fastening component connects the first element and the second element in a state in which the first inclined surface and the second inclined surface are in contact with each other and the first flat surface and the second flat surface are in contact with each other.

Description

Frame-shaped member and method for manufacturing the frame-shaped member

[0001] The present invention relates to a frame-shaped member and a method for manufacturing a frame-shaped member.

[0002] Patent Document 1 discloses a frame-shaped member in which a pair of first elements extending in the vertical direction and a pair of second elements extending in the left-right direction are connected in a frame shape by fastening components.

[0003] Japanese Patent Application Publication No. 10-325282

[0004] Incidentally, in the frame-shaped member described above, it is desirable to have high efficiency in the process of connecting the first element and the second element with fastening components.

[0005] This invention has been made in view of the above circumstances, and aims to provide a frame-shaped member and a method for manufacturing the frame-shaped member that offers high efficiency in the process of connecting the first element and the second element with fastening components.

[0006] One embodiment of the frame-shaped member according to the present invention is a frame-shaped member in which a first element extending in a first direction and a second element extending in a second direction are connected by a fastening component, wherein the first element has a first inclined surface and a first plane perpendicular to the first direction at its end in the first direction, and the second element has a second inclined surface and a second plane perpendicular to the first direction at its end in the second direction, and the fastening component connects the first element and the second element in a state in which the first inclined surface and the second inclined surface are in contact and the first plane and the second plane are in contact.

[0007] One embodiment of the method for manufacturing a frame-shaped member according to the present invention is the method for manufacturing a frame-shaped member described above, comprising the steps of: obtaining a first intermediate by extrusion molding; cutting out a plurality of second intermediates from the first intermediate; processing some of the second intermediates into first elements and processing the remaining second intermediates into second elements; and fastening the first elements and the second elements together in a frame shape with fastening components.

[0008] According to the present invention, it is possible to provide a frame-shaped member and a method for manufacturing the frame-shaped member that offer high efficiency in connecting the first element and the second element with fastening components.

[0009] FIG. 1 is a perspective view of a refrigeration apparatus including a frame member according to Embodiment 1 of the present invention. FIG. 2 is a front view schematically showing the refrigeration apparatus with the door omitted. FIG. 3A is a front view of the frame member in an assembled state. FIG. 3B is a front view of the frame member in a separated state. FIG. 3C is a C １ , ２ , ３ , ２ , ２ , ３ , ３ , １ , ２ -C １ cross-sectional view and C ２ -C ２ cross-sectional view. FIG. 3D is a C of FIG. 3A ３ -C ３ and C ４ -C ４ cross-sectional view. FIG. 4 is an enlarged front view of part A of FIG. 3B. FIG. 5 is an enlarged rear view of part A of FIG. 3B. FIG. 6 is a perspective view of part A of FIG. 3B seen obliquely from the rear. FIG. 7 is a perspective view of part A of FIG. 3B seen obliquely from the rear. FIG. 8 is an enlarged front view of part A of FIG. 3A. FIG. 9 is an enlarged rear view of part A of FIG. 3A. FIG. 10 is a flowchart of a method for manufacturing the frame member. FIG. 11A is a schematic diagram for explaining the method for manufacturing the frame member. FIG. 11B is a schematic diagram for explaining the method for manufacturing the frame member. FIG. 11C is a plan view of the first frame element. FIG. 11D is a plan view of the second frame element. FIG. 12 is a perspective view of a refrigeration apparatus including a frame member according to Embodiment 2 of the present invention. FIG. 13 is a perspective view of the inner box and the frame member. FIG. 14 is a plan view schematically showing the refrigeration apparatus with the door omitted. FIG. 15A is a plan view of the frame member. FIG. 15B is a C of the frame member shown in FIG. 15A ５ -C ５ cross-sectional view and C ６ -C ６ cross-sectional view. FIG. 15C is a C of the frame member shown in FIG. 15A ７ -C ７ cross-sectional view and C ８ -C ８ cross-sectional view. FIG. 16 is an enlarged plan view of part A of FIG. 15A. FIG. 17 is an enlarged bottom view of part A of FIG. 15A. FIG. 18 is a perspective view of part A of FIG. 15A seen obliquely from above. FIG. 19 is a perspective view of part A of FIG. 15A​​​​​​​​​​​​​​​​​​３ It is a perspective view seen from diagonally below the part. FIG. 20 is a front view of the frame member according to Embodiment 3 of the present invention. FIG. 21 is an enlarged perspective view of part A in FIG. 20. ４ FIG. 22 is an enlarged perspective view of part A in FIG. 20. ４ FIG. 22 is an enlarged perspective view of part A in FIG. 20.

[0010] Hereinafter, an embodiment of the frame member according to the present invention will be described with reference to the drawings. The same reference numerals are given to the same components. The matters described below together with the attached drawings are for explaining exemplary embodiments and not for showing the only embodiment.

[0011] [Embodiment 1] A refrigeration apparatus 1 including a frame member 3 according to Embodiment 1 of the present invention will be described with reference to FIGS. 1 to 11D.

[0012] FIG. 1 is a perspective view of the refrigeration apparatus 1 according to an embodiment of the present invention. FIG. 2 is a front view of the refrigeration apparatus 1 in which an inner door (not shown) and an outer door 23 are omitted. In the following description, the orthogonal coordinate system (X, Y, Z) shown in each figure may be used.

[0013] The X direction is the front-rear direction of the refrigeration apparatus 1. The + side in the X direction is the front side of the refrigeration apparatus 1. The - side in the X direction is the rear side of the refrigeration apparatus 1.

[0014] The Y direction is the left-right direction and the width direction of the refrigeration apparatus 1. The + side in the Y direction is the left side of the refrigeration apparatus 1. The left side of the refrigeration apparatus 1 means the left side when the refrigeration apparatus 1 is viewed from the front side.

[0015] The - side in the Y direction is the right side of the refrigeration apparatus 1. The right side of the refrigeration apparatus 1 means the right side when the refrigeration apparatus 1 is viewed from the front side.

[0016] The Z direction is the up-down direction and the height direction of the refrigeration apparatus 1. The + side in the Z direction is the upper side of the refrigeration apparatus 1. The - side in the Z direction is the lower side of the refrigeration apparatus 1.

[0017] First, the basic configuration of the refrigeration apparatus 1 will be briefly described. The refrigeration apparatus 1 according to the present embodiment includes a main body portion 2 and a machine housing portion 9 provided below it.

[0018] The main body 2 includes an inner box 21, an outer box 22, an inner door (not shown), and an outer door 23.

[0019] The inner box 21 is formed, for example, from a metal plate and / or a synthetic resin plate. The inner box 21 is composed of a box-shaped member with an open front.

[0020] The inner box 21 has a top plate 210, a rear plate 211, a left plate 212, a right plate 213, and a bottom plate 214. The inner box 21 also has a storage compartment 215 which is a space enclosed by the top plate 210, the rear plate 211, the left plate 212, the right plate 213, and the bottom plate 214.

[0021] In this embodiment, the storage compartment 215 is composed of a single space. However, the storage compartment 215 may be divided into multiple (for example, two) storage compartments by, for example, a partition plate.

[0022] The outer box 22 is made of, for example, a metal plate and / or a synthetic resin plate. The outer box 22 is made of a box-shaped member with an open front. The outer box 22 is made of a box-shaped member that is larger than the inner box 21.

[0023] The outer box 22 has a top panel 220, a rear panel 221, a left panel 222, a right panel 223, and a bottom panel 224. The outer box 22 also has a storage space 225 which is the space enclosed by the top panel 220, the rear panel 221, the left panel 222, the right panel 223, and the bottom panel 224.

[0024] The outer box 22 houses the inner box 21 in the storage space 225.

[0025] In the storage space 225, an insulating material (not shown) is provided in the space 225a between the inner surface of the outer box 22 and the outer surface of the inner box 21. The insulating material is made of, for example, polyurethane foam (in other words, foamed urethane).

[0026] The outer door 23 is attached to the outer box 22 in such a way that it can open and close the opening of the outer box 22. When the outer door 23 closes the opening of the outer box 22, the outer box 22 becomes airtight. An insulating material (not shown) is placed inside the outer door 23.

[0027] The inner door (not shown) is located on the interior side of the outer door 23. Unless otherwise specified, "interior side" refers to the side closer to the inner box 21 and outer box 22 when the outer door 23 and the inner door (not shown) are closed.

[0028] Furthermore, unless otherwise specified, the "external side" refers to the side furthest from the inner box 21 and outer box 22 when the outer door 23 and inner door are closed.

[0029] An inner door (not shown) is attached to the inner box 21 in such a way that it can open and close the opening of the inner box 21.

[0030] The machine housing 9 is located directly below the main body 2. Some of the devices that make up the refrigeration circuit (not shown) are housed in the machine housing 9. Examples of the devices housed in the machine housing 9 include a compressor (not shown) and a pressure reducer (not shown). The devices housed in the machine housing 9 are determined according to the configuration of the refrigeration circuit.

[0031] The storage compartment 215 of the inner box 21 is cooled by the refrigeration circuit. The configuration of the refrigeration circuit may be any of the various conventional refrigeration circuit configurations. Therefore, the explanation of the refrigeration circuit configuration will be omitted.

[0032] Furthermore, the refrigeration apparatus 1 according to this embodiment has a frame-shaped member 3 that connects the front end of the inner box 21 and the front end of the outer box 22. The frame-shaped member 3 is an example of a frame-shaped member and is a rectangular frame made of synthetic resin. The frame-shaped member 3 may also be made of metal.

[0033] Figure 2 is a schematic front view showing the inner box 21, the outer box 22, and the frame-shaped member 3. In Figure 2, the inner box 21, the outer box 22, and the frame-shaped member 3 are shown by thick solid lines.

[0034] The frame-shaped member 3 closes the space 225a between the inner surface of the outer box 22 and the outer surface of the inner box 21 from the front.

[0035] The specific configuration of the frame-shaped member 3 will be described below with reference to Figures 3A to 8. Figure 3A is a front view of the frame-shaped member 3 in its assembled state. Figure 3B is a front view of the frame-shaped member 3 in its separated state.

[0036] As shown in Figure 3A, the frame-shaped member 3 has a pair of first frame elements 4A and 4B, and a pair of second frame elements 5A and 5B. The pair of first frame elements 4A and 4B are examples of first elements. The pair of second frame elements 5A and 5B are examples of second elements.

[0037] The pair of first frame elements 4A and 4B and the pair of second frame elements 5A and 5B are connected in a rectangular frame shape to form a frame-shaped member 3.

[0038] The pair of first frame elements 4A and 4B extend in the vertical direction. The vertical direction is an example of the first direction. The pair of second frame elements 5A and 5B extend in the horizontal direction. The horizontal direction is an example of the second direction. The first and second directions are orthogonal to each other.

[0039] The first frame element 4A and the first frame element 4B have a symmetrical configuration in the left-right direction. The first frame element 4A and the first frame element 4B are examples of first frame elements.

[0040] Furthermore, the second frame element 5A and the second frame element 5B have a symmetrical configuration in the vertical direction. The second frame element 5A and the second frame element 5B are examples of second frame elements.

[0041] Figure 3C is a cross-sectional view of the first frame elements 4A and 4B. Specifically, Figure 3C is a cross-sectional view of Figure 3A. １ -C １ Cross section and C ２ -C ２ This shows a cross-section.

[0042] Figure 3D is a cross-sectional view of the second frame elements 5A and 5B. Specifically, Figure 3C is C of Figure 3A. ３ -C ３ Cross section and C ４ -C ４ This shows a cross-section.

[0043] The first frame element 4A, the first frame element 4B, the second frame element 5A, and the second frame element 5B all have the same cross-sectional shape.

[0044] The cross-sectional shapes of the first frame elements 4A and 4B and the second frame elements 5A and 5B are the same along their entire lengths.

[0045] Furthermore, the term "cross-section" refers to the cross-section obtained when the first frame elements 4A and 4B and the second frame elements 5A and 5B are cut by a plane perpendicular to the extension direction of the first frame elements 4A and 4B and the second frame elements 5A and 5B.

[0046] In this embodiment, the cross-sections of the first frame elements 4A and 4B are the cross-sections obtained when the first frame elements 4A and 4B are cut by planes parallel to the left-right and front-back directions (in other words, the XY plane).

[0047] Furthermore, the cross-sections of the second frame elements 5A and 5B are the cross-sections obtained when the second frame elements 5A and 5B are cut by a plane parallel to the front-to-back and up-to-down directions (in other words, the XZ plane).

[0048] The first frame elements 4A and 4B are plate-shaped members that extend in the vertical direction. These first frame elements 4A and 4B are manufactured by cutting and drilling a second intermediate body 72 (see Figure 11B) obtained by cutting a first intermediate body 71 (see Figure 11A) formed by extrusion molding.

[0049] In the manufacturing method of the first frame elements 4A and 4B, the extrusion molding that produces the first intermediate 71 is referred to as primary processing. Furthermore, in the manufacturing method of the first frame elements 4A and 4B, the cutting and drilling processes performed on the first intermediate 71 are referred to as secondary processing.

[0050] The first frame elements 4A and 4B have a main body portion 40 that extends in the vertical direction. The main body portion 40 is a plate-like member that is substantially parallel in the left-right and vertical directions. The main body portion 40 is manufactured by extrusion molding.

[0051] As shown in Figure 3C, the main body 40 has a plurality of protrusions and indentations on its front surface. These protrusions and indentations are provided along the entire length of the first frame elements 4A and 4B. These protrusions and indentations constitute the design of the front surface of the first frame elements 4A and 4B.

[0052] A first packing (not shown) is provided on the front side of the main body 40. The front surface of the main body 40 (specifically, the uneven surface) may have a shape that allows the first packing to be locked in place.

[0053] The first packing is held between the outer door 23 and the frame-shaped member 3 when the outer door 23 is closed. The first packing contributes to improving the airtightness of the storage space 225.

[0054] The first frame elements 4A and 4B have a first boss 41 extending vertically on the rear side surface of the main body 40. The first boss 41 is provided along the entire length of the main body 40. In other words, the first boss 41 is provided from the upper end to the lower end on the rear side surface of the main body 40.

[0055] As shown in Figure 3C, the first boss 41 is hollow along its entire length. Such a first boss 41 is formed by extrusion molding.

[0056] The first frame elements 4A and 4B have first inclined surfaces 42a and 42b at both ends in the vertical direction of the main body portion 40. The first inclined surfaces 42a and 42b are surfaces that, when viewed from the front, are inclined at a predetermined angle (45° in this embodiment) with respect to the extending direction (vertical direction in this embodiment) of the main body portion 40.

[0057] Furthermore, a front view means viewing the frame-shaped member 3 from the front (in other words, from the X-direction + side). Alternatively, a front view can be understood as viewing the frame-shaped member 3 from a direction perpendicular to the extension direction of the first frame elements 4A and 4B (in this embodiment, the vertical direction) and the extension direction of the second frame elements 5A and 5B (in this embodiment, the left-right direction).

[0058] Figures 4 to 8 are A in Figure 3B. ２ This is an enlarged view of the part corresponding to the section. Figures 4 to 8 show the upper end of the first frame element 4A and the right end of the second frame element 5A, which will be described later.

[0059] Furthermore, the configurations of parts B, C, and D in Figure 3B are the same as those shown in Figures 4 to 8. Therefore, the explanation of the configurations of parts B, C, and D in Figure 3B may be appropriately referenced by substituting the reference numerals and directions in Figures 4 to 8.

[0060] The first inclined surfaces 42a and 42b are formed by performing secondary processing such as cutting on the second intermediate body 72 shown in Figure 11B. The shape of the first inclined surfaces 42a and 42b is determined according to the cross-sectional shape of the first frame elements 4A and 4B.

[0061] The first inclined surfaces 42a and 42b, in the connected state of the first frame elements 4A and 4B and the second frame elements 5A and 5B, abut against the second inclined surfaces 52a and 52b of the second frame elements 5A and 5B, as described later (see Figure 3A). The first inclined surfaces 42a and 42b and the second inclined surfaces 52a and 52b have the same shape and are in surface contact with each other across their entire surfaces.

[0062] Furthermore, the first frame elements 4A and 4B have a first plane 43 (see Figure 6) at both ends in the vertical direction of the main body 40 that is perpendicular to the direction in which the first frame elements 4A and 4B extend (in other words, the vertical direction).

[0063] Figure 6 is A in Figure 3B. ２ This is a perspective view of the section from the rear at an oblique angle. Figure 6 shows the upper end of the first frame element 4A.

[0064] Furthermore, the configuration of the lower end of the first frame element 4A, the upper end of the first frame element 4B, and the lower end of the first frame element 4B is the same as the configuration of the upper end of the first frame element 4A shown in Figure 6. Therefore, the descriptions of the lower end of the first frame element 4A, the upper end of the first frame element 4B, and the lower end of the first frame element 4B may be appropriately referenced by substituting the reference numerals and directions in Figure 6.

[0065] The first plane 43 is provided on both end faces of the first boss 41 in the extending direction (in this embodiment, the vertical direction). When the first frame elements 4A and 4B are connected to the second frame elements 5A and 5B, the first plane 43 abuts against the second plane 53 of the second frame elements 5A and 5B.

[0066] When connecting the first frame elements 4A and 4B with the second frame elements 5A and 5B, the first plane 43 contributes to the positioning of the first frame elements 4A and 4B and the second frame elements 5A and 5B.

[0067] A first through-hole 43a (see Figure 6) is provided in the center of the first plane 43. The first through-hole 43a is formed by the central hole of the first boss 41. The tip of the first screw 61 (see Figures 6 and 7) is inserted into the first through-hole 43a when the first frame elements 4A and 4B and the second frame elements 5A and 5B are connected. In other words, the first screw 61 engages with the first boss 41.

[0068] In this embodiment, the first frame elements 4A and 4B each have one first plane 43 at both ends in the vertical direction. However, the first frame elements 4A and 4B may each have multiple first planes at both ends in the vertical direction.

[0069] The second frame elements 5A and 5B are plate-shaped members that extend in the left-right direction. These second frame elements 5A and 5B are manufactured by cutting a second intermediate body 72 (see Figure 11B) which is obtained by cutting a first intermediate body 71 (see Figure 11A) formed by extrusion molding.

[0070] Furthermore, the first intermediate body 71 produced in the manufacturing method of the second frame elements 5A and 5B may be a common component with the first intermediate body 71 produced in the manufacturing method of the first frame elements 4A and 4B. By cutting the first intermediate body 71 to a predetermined length, a second intermediate body 72 for the first frame elements 4A and 4B, and a second intermediate body 72 for the second frame elements 5A and 5B are obtained.

[0071] In the manufacturing method of the second frame elements 5A and 5B, the extrusion molding that produces the first intermediate 71 is referred to as primary processing. Furthermore, in the manufacturing method of the second frame elements 5A and 5B, the cutting and drilling processes performed on the first intermediate 71 are referred to as secondary processing.

[0072] The second frame elements 5A and 5B have a main body portion 50 that extends in the left-right direction. The main body portion 50 is a plate-like member that is substantially parallel in the left-right and up-down directions. The main body portion 50 is manufactured by extrusion molding.

[0073] As shown in Figure 3C, the main body 50 has a plurality of protrusions and indentations on its front surface. These protrusions and indentations are provided along the entire length of the second frame elements 5A and 5B.

[0074] These protrusions and indentations constitute the front design of the second frame elements 5A and 5B. The front design of the second frame elements 5A and 5B is the same as the front design of the first frame elements 4A and 4B.

[0075] A second packing (not shown) is provided on the front side of the main body 50. The front surface of the main body 50 (specifically, the uneven surface) may have a shape that allows the second packing to be locked in place.

[0076] The second packing is held between the outer door 23 and the frame-shaped member 3 when the outer door 23 is closed. Such a second packing contributes to improving the airtightness of the storage space 225.

[0077] The second packing may be connected to the first packing (not shown) described above. In this case, the first packing and the second packing may be rectangular in shape along the front surface of the frame-shaped member 3.

[0078] The second frame elements 5A and 5B have a second boss 51 (see Figures 5 and 6) extending in the left-right direction on the rear side surface of the main body 50. The second boss 51 is provided along the entire length of the main body 50. In other words, the second boss 51 is provided from the left end to the right end of the rear side surface of the main body 50.

[0079] The configuration of the second boss 51 is the same as that of the first boss 41 in the first frame elements 4A and 4B described above. Specifically, the second boss 51 is hollow along its entire length, as shown in Figure 3C. Such a second boss 51 is formed by extrusion molding.

[0080] The second frame elements 5A and 5B have second inclined surfaces 52a and 52b at both ends in the left-right direction of the main body 50. The second inclined surfaces 52a and 52b are surfaces that, when viewed from the front, are inclined at a predetermined angle (45° in this embodiment) with respect to the extending direction of the main body 50 (left-right direction in this embodiment).

[0081] The second inclined surfaces 52a and 52b are formed by performing secondary processing such as cutting on the second intermediate body 72 (see Figure 11B). The shape of the second inclined surfaces 52a and 52b is determined according to the cross-sectional shape of the second frame elements 5A and 5B.

[0082] The second inclined surfaces 52a and 52b come into contact with the first inclined surfaces 42a and 42b of the first frame elements 4A and 4B when the first frame elements 4A and 4B are connected to the second frame elements 5A and 5B (see Figure 3A).

[0083] Furthermore, the second frame elements 5A and 5B have second planes 53 (see Figure 7) perpendicular to the vertical direction at both ends of the main body 50 in the left-right direction.

[0084] Figure 7 is A in Figure 3B. ２ This is a perspective view of the section from the rear at an oblique angle. Figure 7 shows the right end of the second frame element 5A.

[0085] Furthermore, the configuration of the left end of the second frame element 5A, the right end of the second frame element 5B, and the left end of the second frame element 5B is the same as the configuration of the right end of the second frame element 5A shown in Figure 7. Therefore, the descriptions of the left end of the second frame element 5A, the right end of the second frame element 5B, and the left end of the second frame element 5B may be appropriately referenced by substituting the reference numerals and directions in Figure 7.

[0086] The second plane 53 is provided on the lower surfaces of both ends of the second boss 51 in the left-right direction. When the first frame elements 4A and 4B are connected to the second frame elements 5A and 5B, the second plane 53 abuts against the first plane 43 of the first frame elements 4A and 4B.

[0087] When connecting the first frame elements 4A and 4B with the second frame elements 5A and 5B, such a second plane 53 contributes to the positioning of the first frame elements 4A and 4B and the second frame elements 5A and 5B.

[0088] In this embodiment, the second plane 53 is provided along the entire length of the second boss 51 in the left-right direction. Such a second plane 53 is formed by extrusion molding. Alternatively, the second plane 53 may be formed by machining.

[0089] A second through-hole 53a is provided in the second plane 53. The second through-hole 53a penetrates the second boss 51 in the vertical direction. In other words, the second plane 53 is provided around the second through-hole 53a.

[0090] In the second boss 51, a seating surface 51a (see Figure 4) is provided on the portion facing the second plane 53.

[0091] The seat surface 51a is a plane parallel to a plane perpendicular to the vertical direction. In other words, the seat surface 51a is a plane parallel to the second plane 53.

[0092] The first screw 61 (see Figures 5 and 7) is inserted through the second through hole 53a when the first frame elements 4A and 4B are connected to the second frame elements 5A and 5B. The head of the first screw 61 is in contact with the seating surface 51a.

[0093] The first frame elements 4A and 4B and the second frame elements 5A and 5B, having the configuration described above, are connected in a rectangular frame shape by the first screw 61 (see Figures 5 and 7) to form the frame-shaped member 3.

[0094] In this state, the first inclined surfaces 42a and 42b of the first frame elements 4A and 4B are in contact with the second inclined surfaces 52a and 52b of the second frame elements 5A and 5B.

[0095] Furthermore, the first plane 43 in the first frame elements 4A and 4B is in contact with the second plane 53 in the second frame elements 5A and 5B (see Figure 9).

[0096] Specifically, the upper end of the first frame element 4A and the right end of the second frame element 5A are connected by the first screw 61. In this state, as shown in Figure 8, the first inclined surface 42a of the first frame element 4A and the second inclined surface 52a of the second frame element 5A are in contact.

[0097] Furthermore, the first plane 43 at the upper end of the first frame element 4A and the second plane 53 at the right end of the second frame element 5A are in contact. The first screw 61 is inserted through the second through hole 53a provided in the second plane 53, and then inserted into the first through hole 43a provided in the first plane 43.

[0098] The first screw 61 is an example of a fastening component. As described above, the first screw 61 connects the portion where the first plane 43 at the upper end of the first frame element 4A and the second plane 53 at the right end of the second frame element 5A come into contact.

[0099] Furthermore, as shown in Figure 3A, the lower end of the first frame element 4A and the right end of the second frame element 5B are connected by the first screw 61. In this state, the first inclined surface 42b of the first frame element 4A and the second inclined surface 52a of the second frame element 5B are in contact. Note that the explanation of the lower end of the first frame element 4A and the right end of the second frame element 5B may be appropriately referred to by substituting the reference numerals and directions in Figures 4 to 9.

[0100] Furthermore, the first plane 43 at the lower end of the first frame element 4A and the second plane 53 at the right end of the second frame element 5B are in contact. The first screw 61 is inserted through the second through hole 53a provided in the second plane 53, and then inserted into the first through hole 43a provided in the first plane 43.

[0101] Furthermore, as shown in Figure 3A, the upper end of the first frame element 4B and the left end of the second frame element 5A are connected by the first screw 61. In this state, the first inclined surface 42a of the first frame element 4B and the second inclined surface 52b of the second frame element 5A are in contact. Note that the explanation of the upper end of the first frame element 4B and the left end of the second frame element 5A may be appropriately referred to by substituting the reference numerals and directions in Figures 4 to 8.

[0102] Furthermore, the first plane 43 at the upper end of the first frame element 4B and the second plane 53 at the left end of the second frame element 5A are in contact. The first screw 61 is inserted through the second through hole 53a provided in the second plane 53, and then inserted into the first through hole 43a provided in the first plane 43.

[0103] Furthermore, as shown in Figure 3A, the lower end of the first frame element 4B and the left end of the second frame element 5B are connected by the first screw 61. In this state, the first inclined surface 42b of the first frame element 4B and the second inclined surface 52b of the second frame element 5B come into contact. Note that the explanation of the lower end of the first frame element 4B and the left end of the second frame element 5B may be appropriately referred to by substituting the reference numerals and directions in Figures 4 to 8.

[0104] Furthermore, the first plane 43 at the lower end of the first frame element 4B and the second plane 53 at the left end of the second frame element 5B are in contact. The first screw 61 is inserted through the second through hole 53a provided in the second plane 53, and then inserted into the first through hole 43a provided in the first plane 43.

[0105] The frame-shaped member 3 having the above-described configuration is provided to connect the front end of the inner box 21 and the front end of the outer box 22. In this state, it closes the space 225a (see Figure 2) between the inner surface of the outer box 22 and the outer surface of the inner box 21 from the front.

[0106] The frame-shaped member 3 is fixed to the front end of the inner box 21 and the front end of the outer box 22 by a plurality of second screws 62 (see Figure 3A). The second screws 62 are inserted through third through holes 63 (see Figures 11C and 11D) that penetrate the frame-shaped member 3 in the thickness direction (in other words, the front-to-back direction).

[0107] Next, the manufacturing method of the frame-shaped member 3 will be described. Figure 10 is a flowchart of the manufacturing method of the frame-shaped member 3.

[0108] First, in step S101 of Figure 10, the worker obtains the first intermediate body 71. Figure 11A is a plan view of the first intermediate body.

[0109] The first intermediate 71 is manufactured by extrusion molding. In this embodiment, the first intermediate 71 is made of synthetic resin. The length L of the first intermediate 71. ７１ For example, this may be greater than the sum of the length dimensions of the first frame elements 4A and 4B and the length dimensions of the second frame elements 5A and 5B.

[0110] Next, in step S102 of Figure 10, the worker cuts the first intermediate body 71 to a desired length to obtain a second intermediate body 72. Figure 11B is a plan view of the second intermediate body 72. Although only one second intermediate body 72 is shown in Figure 11B, in step S102, the first intermediate body 71 is divided into multiple second intermediate bodies 72.

[0111] Specifically, the first intermediate 71 is divided into two second intermediates 72 for the first frame elements 4A and 4B, and two second intermediates 72 for the second frame elements 5A and 5B.

[0112] The second intermediate body 72 for the first frame elements 4A and 4B has the main body portion 40 and the first boss 41 of the first frame elements 4A and 4B. In other words, the main body portion 40 and the first boss 41 are formed by extrusion molding.

[0113] Furthermore, the second intermediate body 72 for the second frame elements 5A and 5B has the main body portion 50 and the second boss 51 of the second frame elements 5A and 5B. In other words, the main body portion 50 and the second boss 51 are formed by extrusion molding.

[0114] Furthermore, the number of divisions of the first intermediate body 71 in step S102 is determined by the length dimension L of the first intermediate body 71. ７１ The length may be determined according to the length dimensions of the first frame elements 4A and 4B, and the length dimensions of the second frame elements 5A and 5B.

[0115] Next, in step S103 of Figure 10, the operator performs secondary processing such as cutting and drilling on the second intermediate body 72 to obtain the first frame elements 4A and 4B and the second frame elements 5A and 5B.

[0116] Specifically, the worker forms the first inclined surfaces 42a and 42b, the first flat surface 43 (see Figure 5), and the third through hole 63 on the second intermediate body 72 for the first frame elements 4A and 4B to obtain the first frame elements 4A and 4B (see Figure 11C).

[0117] The third through-hole 63 is a through-hole through which a second screw 62 (see Figure 3A) is inserted for fixing the frame-shaped member 3 to the outer box 22 and the inner box 21.

[0118] Furthermore, the worker forms second inclined surfaces 52a, 52b, a second flat surface 53 (see Figure 5), and a third through hole 63 in the second intermediate body 72 for the second frame elements 5A and 5B to obtain the second frame elements 5A and 5B (see Figure 11D).

[0119] The third through-hole 63 is a through-hole through which a second screw 62 (see Figure 3A) is inserted for fixing the frame-shaped member 3 to the outer box 22 and the inner box 21.

[0120] Next, in step S104 of Figure 10, the worker connects the first frame elements 4A and 4B and the second frame elements 5A and 5B in a rectangular frame shape to obtain the frame-shaped member 3 (see Figure 3A).

[0121] (Operation and Effects of this Embodiment) With the frame-shaped member 3 having the above-described configuration, when connecting the first frame elements 4A, 4B and the second frame elements 5A, 5B, the first frame elements 4A, 4B and the second frame elements 5A, 5B can be easily positioned.

[0122] Specifically, in this embodiment, the first frame elements 4A and 4B and the second frame elements 5A and 5B are connected by the first screw 61 while the first plane 43 of the first frame elements 4A and 4B and the second plane 53 of the second frame elements 5A and 5B are in contact with each other.

[0123] The first plane 43 and the second plane 53 are planes perpendicular to the extension direction (in this embodiment, the vertical direction) of the first frame elements 4A and 4B. Therefore, with the first plane 43 and the second plane 53 in contact, the first frame elements 4A and 4B and the second frame elements 5A and 5B can be positioned at least in the vertical direction.

[0124] Furthermore, in the case of the frame-shaped member 3 of this embodiment, the first inclined surfaces 42a and 42b of the first frame elements 4A and 4B and the second inclined surfaces 52a and 52b of the second frame elements 5A and 5B are in contact without any gaps, thus improving the airtightness of the frame-shaped member 3. Such a frame-shaped member 3 can prevent the heat insulating material (not shown) placed in the space 225a (see Figure 2) between the inner surface of the outer box 22 and the outer surface of the inner box 21 from leaking out of the space 225a to the outside.

[0125] Furthermore, as described above, the frame-shaped member 3 of this embodiment can be manufactured by dividing a single first intermediate body 71. This allows for a reduction in manufacturing costs.

[0126] Furthermore, as shown in Figure 3A, the front designs of the first frame elements 4A and 4B and the front designs of the second frame elements 5A and 5B are continuous around the entire circumference of the frame-shaped member 3. This configuration is preferable from the viewpoint of improving the aesthetic appearance of the front surface of the frame-shaped member 3.

[0127] [Embodiment 2] Referring to Figures 12 to 19, a refrigeration apparatus 1B equipped with a frame-shaped member (second frame-shaped member 31, described later) according to Embodiment 2 of the present invention will be described.

[0128] Figure 12 is a perspective view of a refrigeration apparatus 1B according to an embodiment of the present invention. Figure 13 is a perspective view of the inner box 21B and the frame-shaped member 3B. Figure 14 is a front view of the refrigeration apparatus 1B in which the inner door (not shown) and outer door 23B are omitted.

[0129] The refrigeration device 1B of this embodiment differs from the refrigeration device 1 of the above-described embodiment 1 in the direction in which the storage compartment 215B opens (i.e., the position of the outer door 23B).

[0130] First, the basic configuration of the refrigeration device 1B will be briefly explained. The refrigeration device 1B according to this embodiment comprises a main body 2B and a machine storage section 9B provided on its side.

[0131] The main body 2B includes an inner box 21B, an outer box 22B, an inner door (not shown), and an outer door 23B.

[0132] The inner box 21B is formed of, for example, a metal plate and / or a synthetic resin plate. The inner box 21B is composed of a box-shaped member with an open top. The inner box 21B has a storage compartment 215B.

[0133] The outer box 22B is made of, for example, a metal plate and / or a synthetic resin plate. The outer box 22B is made of a box-shaped member with an open top. The outer box 22B is made of a box-shaped member that is larger than the inner box 21B.

[0134] The outer box 22B has a storage space 225B (see Figure 14). The outer box 22B houses the inner box 21B in the storage space 225B.

[0135] In the storage space 225B, an insulating material (not shown) is provided in the space 225b between the inner surface of the outer box 22B and the outer surface of the inner box 21B. The insulating material is made of, for example, polyurethane foam (in other words, foamed urethane).

[0136] The outer door 23B is attached to the outer box 22B in such a way that it can open and close the opening of the outer box 22B. When the outer door 23B closes the opening of the outer box 22B, the outer box 22B becomes airtight. Insulation material (not shown) is placed inside the outer door 23B.

[0137] The inner door (not shown) is located on the interior side of the outer door 23B. Unless otherwise specified, "interior side" refers to the side closer to the inner box 21B and outer box 22B when the outer door 23B and the inner door (not shown) are closed.

[0138] Furthermore, unless otherwise specified, the "external side" refers to the side furthest from the inner box 21B and outer box 22B when the outer door 23B and inner door are closed.

[0139] An inner door (not shown) is attached to the inner box 21B in a manner that allows it to open and close the opening of the inner box 21B.

[0140] The machine housing 9B is located to the side of the main body 2B. Some of the devices that make up the refrigeration circuit (not shown) are housed in the machine housing 9B. Examples of the devices housed in the machine housing 9B include a compressor (not shown) and a pressure reducer (not shown). The devices housed in the machine housing 9B are determined according to the configuration of the refrigeration circuit.

[0141] The storage compartment 215B of the inner box 21B is cooled by the refrigeration circuit. The configuration of the refrigeration circuit may be any of the various conventional refrigeration circuit configurations. Therefore, the explanation of the refrigeration circuit configuration will be omitted.

[0142] Furthermore, the refrigeration apparatus 1B according to this embodiment has a frame-shaped member 3B that connects the upper end of the inner box 21B and the upper end of the outer box 22B.

[0143] Figure 14 is a schematic plan view showing the inner box 21B, the outer box 22B, and the frame-shaped member 3B. In Figure 14, the inner box 21, the outer box 22, and the frame-shaped member 3B are shown by thick solid lines.

[0144] The frame-shaped member 3B closes the space 225b between the inner surface of the outer box 22B and the outer surface of the inner box 21B from above.

[0145] The specific configuration of the frame-shaped member 3B will be described below with reference to Figures 15A to 19. Figure 15A is a front view of the frame-shaped member 3B.

[0146] The frame-shaped member 3B includes a first frame-shaped member 30 and a second frame-shaped member 31.

[0147] The first frame-shaped member 30 is a rectangular frame made of synthetic resin. The first frame-shaped member 30 has a pair of first frame elements 301a, 301b, a pair of second frame elements 302a, 302b, and a plurality (four in this embodiment) of corner elements 303a to 303d. The upper surface of the first frame-shaped member 30 is parallel to the horizontal plane (in other words, the XY plane).

[0148] The first frame elements 301a, 301b, the second frame elements 302a, 302b, and the corner elements 303a to 303d are connected in a rectangular frame shape to constitute the first frame-shaped member 30.

[0149] Such a first frame-shaped member 30 is positioned inside the second frame-shaped member 31. In Figure 15A, the first frame elements 301a, 301b, the second frame elements 302a, 302b, and some of the corner elements 303a to 303d are shown in a separated state.

[0150] The second frame-shaped member 31 is a member corresponding to the frame-shaped member 3 in the above-described embodiment 1. The second frame-shaped member 31 is an example of a frame-shaped member. The second frame-shaped member 31 has a pair of first frame elements 4C, 4D and a pair of second frame elements 5C, 5D.

[0151] The upper surface of the second frame-shaped member 31 is generally sloped downwards towards the outside. "Generally" means understanding the shape of the upper surface of the second frame-shaped member 31, excluding any fine details such as protrusions or indentations.

[0152] A pair of first frame elements 4C, 4D and a pair of second frame elements 5C, 5D are connected in a rectangular frame shape to form a second frame-shaped member 31. The pair of first frame elements 4C, 4D are examples of first elements. The pair of second frame elements 5C, 5D are examples of second elements.

[0153] The pair of first frame elements 4C and 4D extend in the left-right direction. The left-right direction is an example of the first direction. The pair of second frame elements 5C and 5D extend in the front-back direction. The front-back direction is an example of the second direction. The first and second directions are orthogonal to each other.

[0154] The first frame element 4C and the first frame element 4D have a symmetrical configuration in the front-to-back direction. The first frame element 4C and the first frame element 4D are examples of first frame elements.

[0155] Furthermore, the second frame element 5C and the second frame element 5D have a symmetrical configuration in the left-right direction. The second frame element 5C and the second frame element 5D are examples of second frame elements.

[0156] The first frame elements 4C, 4D, 5C, and 5D have the same cross-sectional shape as each other. The cross-sectional shapes of the first frame elements 4C, 4D and the second frame elements 5C and 5D are the same along their entire lengths.

[0157] Furthermore, the term "cross-section" refers to the cross-section obtained when the first frame elements 4C, 4D and the second frame elements 5C, 5D are cut by a plane perpendicular to the extension direction of the first frame elements 4C, 4D and the second frame elements 5C, 5D.

[0158] In this embodiment, the cross-sections of the first frame elements 4C and 4D are the cross-sections obtained when the first frame elements 4C and 4D are cut by a plane parallel to the front-rear and up-down directions (in other words, the XZ plane).

[0159] Furthermore, the cross-sections of the second frame elements 5C and 5D are the cross-sections obtained when the second frame elements 5C and 5D are cut by planes parallel to the left-right and up-down directions (in other words, the YZ plane).

[0160] The first frame elements 4C and 4D are plate-like members that extend in the left-right direction. These first frame elements 4C and 4D are manufactured by cutting and drilling a second intermediate body 72 (see Figure 11B) obtained by cutting a first intermediate body 71 (see Figure 11A) formed by extrusion molding.

[0161] Furthermore, the manufacturing method for the first frame elements 4C and 4D is the same as the manufacturing method for the first frame elements 4A and 4B in Embodiment 1 described above.

[0162] The first frame elements 4C and 4D have a main body portion 40B that extends in the left-right direction. The main body portion 40B is a plate-like member that is substantially parallel in the front-rear and left-right directions. The main body portion 40B is manufactured by extrusion molding.

[0163] The main body portion 40B has a plurality of protrusions and indentations on its upper surface. These protrusions and indentations are provided along the entire length of the first frame elements 4C and 4D. These protrusions and indentations constitute the design of the upper surface of the first frame elements 4C and 4D.

[0164] A first packing (not shown) is provided on the upper surface of the main body portion 40B. The upper surface of the main body portion 40B (specifically, the uneven portion) may have a shape that allows the first packing to be locked in place.

[0165] The first packing is held between the outer door 23B and the frame-shaped member 3B when the outer door 23B is closed. The first packing contributes to improving the airtightness of the storage space 225B.

[0166] The first frame elements 4C and 4D have two first bosses 41B1 and 41B2 extending in the left-right direction on the main body 40B. The first bosses 41B1 and 41B2 are provided along the entire length of the main body 40B. In other words, the first bosses 41B1 and 41B2 are provided from the left end to the right end of the main body 40B.

[0167] The first bosses 41B1 and 41B2 are hollow along their entire length. These first bosses 41B1 and 41B2 are formed by extrusion molding.

[0168] The first frame elements 4C and 4D have first inclined surfaces 42c and 42d at both ends in the left-right direction of the main body portion 40B. The first inclined surfaces 42c and 42d are surfaces that, in a plan view, are inclined at a predetermined angle (45° in this embodiment) with respect to the extending direction (left-right direction in this embodiment) of the main body portion 40B.

[0169] In this embodiment, a plan view means viewing the second frame-shaped member 31 from above (in other words, from the Z-direction + side). Alternatively, a plan view may be understood as viewing the second frame-shaped member 31 from a direction perpendicular to the extending direction of the first frame elements 4C and 4D (up and down direction in this embodiment) and the extending direction of the second frame elements 5C and 5D (left and right direction in this embodiment).

[0170] Figures 16 to 19 are A of Figure 15A. ３This is an enlarged view of the part corresponding to the section. Figures 16 to 19 show the left end of the first frame element 4C and the rear end of the second frame element 5C, which will be described later.

[0171] Note that Figure 15A B ３ Department, C ３ Department, and D ３ The configuration of the part corresponding to the section is the same as the configuration shown in Figures 16 to 19. Therefore, B in Figure 15A ３ Department, C ３ Department, and D ３ For explanations of the parts corresponding to the sections, you may appropriately refer to the reference numerals and directions in Figures 16 to 19 by substituting them as needed.

[0172] The first inclined surfaces 42c and 42d are formed by machining. The shape of the first inclined surfaces 42c and 42d is determined according to the cross-sectional shape of the first frame elements 4C and 4D.

[0173] The first inclined surfaces 42c and 42d, in the connected state of the first frame elements 4C and 4D and the second frame elements 5C and 5D, come into contact with the second inclined surfaces 52c and 52d of the second frame elements 5C and 5D, as described later (C in Figure 15A). ３ (See section). Furthermore, the first inclined surfaces 42c and 42d and the second inclined surfaces 52c and 52d have the same shape and are in surface contact with each other across their entire surface.

[0174] Furthermore, the first frame elements 4C and 4D have first planes 43B1 and 43B2 (see Figure 19) at both ends of the main body 40B in the left-right direction, perpendicular to the extension direction of the first frame elements 4C and 4D (in other words, the front-to-back direction).

[0175] Figure 19 is A of Figure 15A. ３ This is a perspective view of the section from the rear at an oblique angle. Figure 19 shows the left end of the first frame element 4C.

[0176] Furthermore, the configuration of the right end of the first frame element 4C, the left end of the first frame element 4D, and the right end of the first frame element 4D is the same as the configuration of the left end of the first frame element 4C shown in Figure 19. Therefore, the explanation of the right end of the first frame element 4C, the left end of the first frame element 4D, and the right end of the first frame element 4D may be appropriately referred to by substituting the reference numerals and directions in Figure 19.

[0177] The first planes 43B1 and 43B2 are provided on both end faces of the first bosses 41B1 and 41B2 in the extending direction (left-right direction in this embodiment). These first planes 43B1 and 43B2 come into contact with the second planes 53B1 and 53B2 of the second frame elements 5C and 5D when the first frame elements 4C and 4D are connected to the second frame elements 5C and 5D.

[0178] In this embodiment, the first frame elements 4C and 4D have two first planes 43B1 and 43B2 at both ends in the extending direction. These first planes 43B1 and 43B2 contribute to the positioning of the first frame elements 4C and 4D and the second frame elements 5C and 5D when connecting them.

[0179] First through holes 43b1 and 43b2 (see Figure 19) are provided in the central part of the first planes 43B1 and 43B2.

[0180] The first through hole 43b1 is formed by the central hole of the first boss 41B1. The first through hole 43b2 is formed by the central hole of the first boss 41B2. The tip of the first screw 61B (see Figure 19) is inserted into the first through holes 43b1 and 43b2 when the first frame elements 4C and 4D and the second frame elements 5C and 5D are connected. In other words, the first screw 61B engages with the first bosses 41B1 and 41B2.

[0181] The second frame elements 5C and 5D are plate-shaped members that extend in the front-rear direction. These second frame elements 5C and 5D are manufactured by cutting and drilling a second intermediate body 72 (see Figure 11B) which is obtained by cutting a first intermediate body 71 (see Figure 11A) formed by extrusion molding.

[0182] Furthermore, the manufacturing method for the second frame elements 5C and 5D is the same as the manufacturing method for the second frame elements 5A and 5B in Embodiment 1 described above.

[0183] The second frame elements 5C and 5D have a main body portion 50B that extends in the front-rear direction. The main body portion 50B is a plate-like member that is substantially parallel in the front-rear and left-right directions. The main body portion 50B is manufactured by extrusion molding.

[0184] The main body 50B has a plurality of protrusions and indentations on its upper surface. These protrusions and indentations are provided along the entire length of the second frame elements 5C and 5D.

[0185] These protrusions and indentations constitute the design of the upper surfaces of the second frame elements 5C and 5D. The design of the upper surfaces of the second frame elements 5C and 5D is the same as the design of the upper surfaces of the first frame elements 4C and 4D.

[0186] A second packing (not shown) is provided on the front side of the main body 50B. The front surface of the main body 50B (specifically, the uneven surface) may have a shape that allows the second packing to be locked in place.

[0187] The second packing is sandwiched between the outer door 23B and the frame-shaped member 3B when the outer door 23B is closed. Such a second packing contributes to improving the airtightness of the storage space 225B.

[0188] The second packing may be connected to the first packing (not shown) described above. In this case, the first packing and the second packing may be rectangular in shape along the upper surface of the frame-shaped member 3B.

[0189] The second frame elements 5C and 5D have second bosses 51B1 and 51B2 (see Figure 17) that extend in the front-rear direction on the main body 50B. The second bosses 51B1 and 51B2 are provided along the entire length of the main body 50. In other words, the second bosses 51B1 and 51B2 are provided from the front end to the rear end of the main body 50.

[0190] The configuration of the second bosses 51B1 and 51B2 is the same as that of the first bosses 41B1 and 41B2 in the first frame elements 4C and 4D described above. Specifically, the second bosses 51B1 and 51B2 are hollow along their entire length. Such second bosses 51B1 and 51B2 are formed by extrusion molding.

[0191] The second frame elements 5C and 5D have second inclined surfaces 52c and 52d at both ends in the front-rear direction of the main body 50B. The second inclined surfaces 52c and 52d are surfaces that are inclined at a predetermined angle (45° in this embodiment) with respect to the extending direction (front-rear direction in this embodiment) of the main body 50B.

[0192] The second inclined surfaces 52c and 52d are formed by performing secondary processing such as cutting on the second intermediate body 72 (see Figure 11B). The shape of the second inclined surfaces 52c and 52d is determined according to the cross-sectional shape of the second frame elements 5C and 5D.

[0193] The second inclined surfaces 52c and 52d come into contact with the first inclined surfaces 42c and 42d of the first frame elements 4C and 4D when the first frame elements 4C and 4D are connected to the second frame elements 5C and 5D (Figure 15A, C ３ (see section).

[0194] Furthermore, the second frame elements 5C and 5D have second planes 53B1 and 53B2 (see Figures 17 and 18) perpendicular to the vertical direction at both ends of the main body 50B in the left-right direction.

[0195] Figure 18 is A of Figure 15A. ３ This is a perspective view of the section from the rear at an oblique angle. Figure 18 shows the rear end of the second frame element 5C.

[0196] Furthermore, the configuration of the front end of the second frame element 5C, the front end of the second frame element 5D, and the rear end of the second frame element 5D is the same as the configuration of the rear end of the second frame element 5C shown in Figure 18. Therefore, the descriptions of the front end of the second frame element 5C, the front end of the second frame element 5D, and the rear end of the second frame element 5D may be appropriately referenced by substituting the reference numerals and directions in Figure 18.

[0197] The second plane 53B1 is provided on the side surfaces of both ends of the second boss 51B1 in the front-rear direction. The second plane 53B2 is provided on the side surfaces of both ends of the second boss 51B2 in the front-rear direction.

[0198] These second planes 53B1 and 53B2 come into contact with the first planes 43B1 and 43B2 of the first frame elements 4C and 4D when the first frame elements 4C and 4D are connected to the second frame elements 5C and 5D.

[0199] In this embodiment, the second frame elements 5C and 5D have two second planes 53B1 and 53B2 at both ends in the extending direction. These second planes 53B1 and 53B2 contribute to the positioning of the first frame elements 4C and 4D and the second frame elements 5C and 5D when connecting them.

[0200] In this embodiment, the second planes 53B1 and 53B2 are provided along the entire length of the second bosses 51B1 and 51B2 in the front-rear direction. These second planes 53B1 and 53B2 are formed by extrusion molding. Alternatively, the second planes 53B1 and 53B2 may be formed by machining.

[0201] The second planes 53B1 and 53B2 are provided with second through holes 53b1 and 53b2. The second through holes 53b1 and 53b2 penetrate the second bosses 51B1 and 51B2 in the left-right direction. In other words, the second planes 53B1 and 53B2 are provided around the second through holes 53b1 and 53b2.

[0202] In the second bosses 51B1 and 51B2, seating surfaces 51b1 and 51b2 (see Figure 18) are provided on the portions facing the portions where the second through holes 53b1 and 53b2 (see Figure 18) are located. The seating surfaces 51b1 and 51b2 are planes parallel to the second planes 53B1 and 53B2.

[0203] The first screws 61B (see Figure 18) are inserted through the second through holes 53b1 and 53b2 when the first frame elements 4C and 4D are connected to the second frame elements 5C and 5D. The heads of the first screws 61B are in contact with the seating surfaces 51b1 and 51b2.

[0204] Furthermore, in the second frame elements 5C and 5D, relief portions 54a and 54b are provided in the portions facing the portions where the second through holes 53b1 and 53b2 are located. The relief portions 54a and 54b are portions that prevent interference between the first screw 61B and the second frame elements 5C and 5D when the first screw 61B is inserted through the second through holes 53b1 and 53b2.

[0205] The relief portion 54a is composed of a plurality of recesses provided on the upper surfaces of the second frame elements 5C and 5D. The relief portion 54b is composed of through holes that penetrate the second frame elements 5C and 5D. The direction in which the relief portion 54b penetrates the second frame elements 5C and 5D is the direction in which the first screw 61B is inserted into the second through hole 53b2.

[0206] The first frame elements 4C and 4D and the second frame elements 5C and 5D, having the configuration described above, are connected in a rectangular frame shape by the first screw 61B (see Figure 18) to form the second frame-shaped member 31.

[0207] In this state, the first inclined surfaces 42c and 42d of the first frame elements 4C and 4D are in contact with the second inclined surfaces 52c and 52d of the second frame elements 5C and 5D.

[0208] Furthermore, the first planes 43B1 and 43B2 in the first frame elements 4C and 4D are in contact with the second planes 53B1 and 53B2 in the second frame elements 5C and 5D.

[0209] The second frame-shaped member 31, assembled as described above, is positioned to surround the first frame-shaped member 30. The second frame-shaped member 31 is then fixed to the first frame-shaped member 30 by fastening components such as screws (not shown).

[0210] The frame-shaped member 3B, composed of the first frame-shaped member 30 and the second frame-shaped member 31, is fixed to the upper end of the inner box 21B and the upper end of the outer box 22B by fastening components such as screws (not shown). The other configurations, functions, and effects of the first frame-shaped member 30 are the same as those of the frame-shaped member 3 in the above-described embodiment 1.

[0211] [Embodiment 3] The frame-shaped member 3C according to Embodiment 3 of the present invention will be described with reference to Figures 20 to 22.

[0212] Figure 20 is a front view of a frame-shaped member 3C according to an embodiment of the present invention. The frame-shaped member 3C functions as a sash that supports a transparent plate 64. The frame-shaped member 3C is incorporated into, for example, the door of a freezing device, a culture device, or a constant temperature device. Hereinafter, a device into which the frame-shaped member 3C is incorporated will be referred to as the target device.

[0213] The frame-shaped member 3C shown in Figure 20 is incorporated into a target device having a door on the front side. The target device having a door on the front side is, for example, the refrigeration device 1 in the above-described embodiment 1 (see Figure 1). Therefore, Figure 20 shows a Cartesian coordinate system (X, Y, Z) similar to that in Figure 1.

[0214] Furthermore, the frame-shaped member 3C shown in Figure 20 may be incorporated into a target device having a door on the upper side. An example of a target device having a door on the upper side is the refrigeration device 1B in the above-described embodiment 2 (see Figure 12).

[0215] The frame-shaped member 3C has a pair of first frame elements 4E and 4F, and a pair of second frame elements 5E and 5F. The pair of first frame elements 4E and 4F are examples of first elements. The pair of second frame elements 5E and 5F are examples of second elements.

[0216] A pair of first frame elements 4E and 4F and a pair of second frame elements 5E and 5F are connected in a rectangular frame shape to form a frame-shaped member 3C.

[0217] Figure 20 shows a state in which parts of the first frame elements 4E and 4F and the second frame elements 5E and 5F have been separated.

[0218] The first frame elements 4E and 4F extend in the left-right direction. The left-right direction is an example of the first direction. The second frame elements 5E and 5F extend in the up-down direction. The up-down direction is an example of the second direction. The first and second directions are orthogonal to each other.

[0219] The first frame element 4E and the first frame element 4F have a symmetrical configuration in the vertical direction. The first frame element 4E and the first frame element 4F are examples of first frame elements.

[0220] Furthermore, the second frame element 5E and the second frame element 5F have a symmetrical configuration in the left-right direction. The second frame element 5E and the second frame element 5F are examples of second frame elements.

[0221] The first frame elements 4E and 4F and the second frame elements 5E and 5F have the same cross-sectional shape as each other. The cross-sectional shape of the first frame elements 4E and 4F and the second frame elements 5E and 5F is the same along the entire length of the first frame elements 4E and 4F and the second frame elements 5E and 5F.

[0222] Furthermore, the term "cross-section" refers to the cross-section obtained when the first frame elements 4E, 4F and the second frame elements 5E, 5F are cut by a plane perpendicular to the extension direction of the first frame elements 4E, 4F and the second frame elements 5E, 5F.

[0223] In this embodiment, the cross-sections of the first frame elements 4E and 4F are the cross-sections obtained when the first frame elements 4E and 4F are cut by a plane parallel to the front-rear and up-down directions (in other words, the XZ plane).

[0224] Furthermore, the cross-sections of the second frame elements 5E and 5F are the cross-sections obtained when the second frame elements 5E and 5F are cut by planes parallel to the front-to-back and left-to-right directions (in other words, the XY plane).

[0225] The first frame elements 4E and 4F are plate-shaped members that extend in the vertical direction. These first frame elements 4E and 4F are manufactured by cutting and drilling a second intermediate body 72 (see Figure 11B) obtained by cutting a first intermediate body 71 (see Figure 11A) formed by extrusion molding.

[0226] Furthermore, the manufacturing method for the first frame elements 4E and 4F is the same as the manufacturing method for the first frame elements 4A and 4B in the above-described embodiment 1.

[0227] The first frame elements 4E and 4F have a main body portion 40C that extends in the vertical direction. The main body portion 40C is manufactured by extrusion molding.

[0228] The main body portion 40C has a first cover portion 401C, a second cover portion 402C, and a connecting portion 403C.

[0229] The first covering portion 401C is plate-shaped and extends in the left-right direction. The first covering portion 401C is positioned in front of the transparent plate 64. The first covering portion 401C covers the transparent plate 64 from the front, along the outer edge of the transparent plate 64.

[0230] Specifically, the first cover portion 401C in the first frame element 4E covers the upper edge of the transparent plate 64 from the front. The first cover portion 401C in the first frame element 4F covers the lower edge of the transparent plate 64 from the front.

[0231] The second covering portion 402C is plate-shaped and extends in the left-right direction. The second covering portion 402C is positioned behind the transparent plate 64. The second covering portion 402C covers the transparent plate 64 from the rear, along the outer edge of the transparent plate 64.

[0232] Specifically, the second covering portion 402C in the first frame element 4E covers the upper edge of the transparent plate 64 from the rear. The second covering portion 402C in the first frame element 4F covers the lower edge of the transparent plate 64 from the rear.

[0233] The connecting portion 403C is plate-shaped and extends in the left-right direction. The connecting portion 403C connects the first covering portion 401C and the second covering portion 402C in the front-rear direction. The connecting portion 403C covers the outer circumferential surface of the transparent plate 64.

[0234] In the assembled state of the frame-shaped member 3C, the first covering portion 401C and the second covering portion 402C sandwich the outer edge of the transparent plate 64 in the front-rear direction.

[0235] The first frame elements 4E and 4F have a first boss 41C extending in the left-right direction at the connection portion 403C of the main body 40C. The first boss 41C is provided along the entire length of the main body 40C. In other words, the first boss 41C is provided from the left end to the right end of the main body 40C.

[0236] The first boss 41 is hollow along its entire length. Such a first boss 41C is formed by extrusion molding.

[0237] The first frame elements 4E and 4F have first inclined surfaces 42e and 42f at both ends in the left-right direction of the main body portion 40C. The first inclined surfaces 42e and 42f are surfaces that, in a front view, are inclined at a predetermined angle (45° in this embodiment) with respect to the extending direction (left-right direction in this embodiment) of the main body portion 40C.

[0238] Figures 21 and 22 are A of Figure 20. ４ This is an enlarged view of the part corresponding to the section. Figures 21 and 22 show the right end of the first frame element 4E and the upper end of the second frame element 5E, which will be described later.

[0239] Note that Figure 20B ４ Department, C ４ Department, and D ４ The configuration of the part corresponding to the section is the same as the configuration shown in Figures 21 and 22. Therefore, Figure 20 B ４ Department, C ４ Department, and D ４For explanations of the parts corresponding to the sections, you may appropriately refer to the reference numerals and directions in Figures 21 and 22 by substituting them as needed.

[0240] The first inclined surfaces 42e and 42f are formed by performing secondary processing such as cutting on the second intermediate body 72 shown in Figure 11B. The shape of the first inclined surfaces 42e and 42f is determined according to the cross-sectional shape of the first frame elements 4E and 4F.

[0241] The first inclined surfaces 42e and 42f, in the connected state of the first frame elements 4E and 4F and the second frame elements 5E and 5F, come into contact with the second inclined surfaces 52e and 52f of the second frame elements 5E and 5F, as described later (Figure 20, B ４ (See section). Furthermore, the first inclined surfaces 42e and 42f and the second inclined surfaces 52e and 52f have the same shape and are in surface contact with each other across their entire surface.

[0242] Furthermore, the first frame elements 4E and 4F have a first plane 43C (see Figure 21) at both ends of the main body 40C in the left-right direction, perpendicular to the extension direction of the first frame elements 4E and 4F (in other words, the left-right direction).

[0243] Figure 21 is A of Figure 20. ４ This is a perspective view of the section from a diagonal front angle. Figure 21 shows the right end of the first frame element 4E.

[0244] Furthermore, the configuration of the left end of the first frame element 4E, the right end of the first frame element 4F, and the left end of the first frame element 4F is the same as the configuration of the right end of the first frame element 4E shown in Figure 21. Therefore, the descriptions of the left end of the first frame element 4E, the right end of the first frame element 4F, and the left end of the first frame element 4F may be appropriately referenced by substituting the reference numerals and directions in Figure 21.

[0245] The first plane 43C is provided on both end faces of the first boss 41C in the extending direction (left-right direction in this embodiment). Such a first plane 43C abuts against the second plane 53C of the second frame elements 5E and 5F (see Figure 22) when the first frame elements 4E and 4F are connected to the second frame elements 5E and 5F.

[0246] When connecting the first frame elements 4E and 4F with the second frame elements 5E and 5F, this first plane 43C contributes to the positioning of the first frame elements 4E and 4F and the second frame elements 5E and 5F.

[0247] A first through-hole 43c (see Figure 21) is provided in the center of the first plane 43C. The first through-hole 43c is formed by the central hole of the first boss 41C. The tip of the first screw 61C (see Figures 21 and 22) is inserted into the first through-hole 43c when the first frame elements 4E, 4F and the second frame elements 5E, 5F are connected. In other words, the first screw 61C engages with the first boss 41C.

[0248] The second frame elements 5E and 5F are plate-like members that extend in the vertical direction. These second frame elements 5E and 5F are manufactured by cutting a second intermediate body 72 (see Figure 11B) which is obtained by cutting a first intermediate body 71 (see Figure 11A) formed by extrusion molding.

[0249] Furthermore, the manufacturing method for the second frame elements 5E and 5F is the same as the manufacturing method for the second frame elements 5A and 5B in the above-described embodiment 1.

[0250] The second frame elements 5E and 5F have a main body portion 50C that extends in the vertical direction. The main body portion 50C is manufactured by extrusion molding.

[0251] The main body portion 50C has a first cover portion 501C, a second cover portion 502C, and a connecting portion 503C.

[0252] The first covering portion 501C is plate-shaped and extends in the vertical direction. The first covering portion 501C is positioned in front of the transparent plate 64. The first covering portion 501C covers the transparent plate 64 from the front, along the outer edge of the transparent plate 64.

[0253] The first covering portion 501C in the second frame element 5E covers the right edge of the transparent plate 64 from the front. The first covering portion 501C in the second frame element 5F covers the left edge of the transparent plate 64 from the front.

[0254] The second covering portion 502C is plate-shaped and extends in the vertical direction. The second covering portion 502C is positioned behind the transparent plate 64. The second covering portion 502C covers the transparent plate 64 from the rear, along the outer edge of the transparent plate 64.

[0255] Specifically, the second covering portion 502C in the second frame element 5E covers the right edge of the transparent plate 64 from the rear. The second covering portion 502C in the second frame element 5F covers the left edge of the transparent plate 64 from the rear.

[0256] The connecting portion 503C is plate-shaped and extends in the vertical direction. The connecting portion 503C connects the first covering portion 501C and the second covering portion 502C in the front-to-back direction. The connecting portion 503C covers the outer circumferential surface of the transparent plate 64.

[0257] In the assembled state of the frame-shaped member 3C, the first covering portion 501C and the second covering portion 502C clamp the outer edge of the transparent plate 64 in the front-rear direction.

[0258] The second frame elements 5E and 5F have a second boss 51C extending vertically at the connection portion 503C of the main body 50C. The second boss 51C is provided along the entire length of the main body 50C. In other words, the second boss 51C is provided from the upper end to the lower end of the main body 50C.

[0259] The second boss 51C is hollow along its entire length. Such a second boss 51C is formed by extrusion molding.

[0260] The second frame elements 5E and 5F have second inclined surfaces 52e and 52f at both ends in the vertical direction of the main body 50C. The second inclined surfaces 52e and 52f are surfaces that, when viewed from the front, are inclined at a predetermined angle (45° in this embodiment) with respect to the extending direction (vertical direction in this embodiment) of the main body 50C.

[0261] The second inclined surfaces 52e and 52f are formed by performing secondary processing such as cutting on the second intermediate body 72 shown in Figure 11B. The shape of the second inclined surfaces 52e and 52f is determined according to the cross-sectional shape of the second frame elements 5E and 5F.

[0262] The second inclined surfaces 52e and 52f come into contact with the first inclined surfaces 42e and 42f on the first frame elements 4E and 4F when the first frame elements 4E and 4F are connected (Figure 20, B). ４ (see section).

[0263] Furthermore, the second frame elements 5E and 5F have a second plane 53C (see Figure 22) perpendicular to the left-right direction at both ends in the vertical direction of the main body 50C.

[0264] Figure 22 is A of Figure 20 ４ This is a perspective view of the part from the rear at an oblique angle. Figure 22 shows the upper end of the second frame element 5E.

[0265] Furthermore, the configuration of the lower end of the second frame element 5E, the upper end of the second frame element 5F, and the lower end of the second frame element 5F is the same as the configuration of the upper end of the second frame element 5E shown in Figure 22. Therefore, the explanation of the lower end of the second frame element 5E, the upper end of the second frame element 5F, and the lower end of the second frame element 5F may be appropriately referred to by substituting the reference numerals and directions in Figure 22.

[0266] The second plane 53C is provided on the side surfaces of both ends of the second boss 51C in the vertical direction. Such a second plane 53C abuts against the first plane 43C of the first frame elements 4E and 4F when the first frame elements 4E and 4F are connected to the second frame elements 5E and 5F.

[0267] When connecting the first frame elements 4E and 4F with the second frame elements 5E and 5F, such a second plane 53C contributes to the positioning of the first frame elements 4E and 4F and the second frame elements 5E and 5F.

[0268] In this embodiment, the second plane 53C is provided along the entire length of the second boss 51C in the vertical direction. Such a second plane 53C is formed by extrusion molding. Alternatively, the second plane 53C may be formed by machining.

[0269] A second through-hole 53c is provided in the second plane 53C. The second through-hole 53c penetrates the second boss 51C in the left-right direction. In other words, the second plane 53C is provided around the second through-hole 53c.

[0270] A seating surface 51c (see Figure 21) is provided at the portion of the second boss 51C that faces the second plane 53C. The seating surface 51c is a plane parallel to the second plane 53C.

[0271] The first screw 61C (see Figure 21) is inserted through the second through hole 53a when the first frame elements 4E and 4F are connected to the second frame elements 5E and 5F. The head of the first screw 61C is in contact with the seating surface 51c.

[0272] The first frame elements 4E and 4F and the second frame elements 5E and 5F, having the configuration described above, are connected in a rectangular frame shape by the first screw 61C (see Figure 21), thereby forming the frame-shaped member 3C.

[0273] In this state, the first inclined surfaces 42e and 42f of the first frame elements 4E and 4F are in contact with the second inclined surfaces 52e and 52f of the second frame elements 5E and 5F.

[0274] Furthermore, the first plane 43C in the first frame elements 4E and 4F is in contact with the second plane 53C in the second frame elements 5E and 5F.

[0275] A transparent plate 64 is placed inside the frame-shaped member 3C. The transparent plate 64 may be made of glass or synthetic resin. The other configurations and functions / effects of the frame-shaped member 3C are the same as those of the frame-shaped member 3 in the above-described embodiment 1.

[0276] (Note) The frame-shaped member 3 according to Embodiment 1 and the frame-shaped member 3B according to Embodiment 2 described above are not limited to refrigeration equipment, but may also be applied to, for example, culture equipment or constant temperature equipment. Furthermore, the frame-shaped member 3C according to Embodiment 3 described above may be applied to the door of a refrigeration equipment, the door of a culture equipment, or the door of a constant temperature equipment. In addition, the frame-shaped member 3 according to Embodiment 1, the frame-shaped member 3B according to Embodiment 2 described above, and the frame-shaped member 3C according to Embodiment 3 described above may be applied to various devices.

[0277] All disclosures in the specification, drawings, and abstract contained in the Japanese application 2024-171111, filed on 30 September 2024, are incorporated herein by reference.

[0278] The frame-shaped member according to the present invention can be applied to various devices such as refrigeration devices, culture devices, or constant temperature devices.

[0279] 1. 1B Freezing Unit 2. 2B Main Body 21. 21B Inner Box 210 Top Panel 211 Rear Panel 212 Left Panel 213 Right Panel 214 Bottom Panel 215. 215B Storage Chamber 22. 22B Outer Box 220 Top Panel 221 Rear Panel 222 Left Panel 223 Right Panel 224 Bottom Panel 225. 225B Storage Space 225a. 225b Space 23. 23B Outer Door 3. 3B. 3C Frame-like Components 30 First Frame-like Components 301a. 301b First Frame Elements 302a. 302b Second Frame Elements 303a. 303b. 303c. 303d Corner Elements 31 Second Frame-like Components 4A. 4B. 4C. 4D. 4E. 4F First Frame Elements 40, 40B, 40C; Body Part 401C; First Cover Part 402C; Second Cover Part 403C; Connecting Parts 41, 41B1, 41B2, 41C; First Bodies 42a, 42b, 42c, 42d, 42e, 42f; First Inclined Surfaces 43, 43B1, 43B2; First Planes 43a, 43b1, 43b2, 43c; First Through Holes 5A, 5B, 5C, 5D, 5E, 5F; Second Frame Elements 50, 50B, 50C; Body Part 501C; First Cover Part 502C; Second Cover Part 503C; Connecting Parts 51, 51B1, 51B2, 51C; Second Bodies 51a, 51b1, 51b2, 51c Seat surface 52a, 52b, 52c, 52d, 52e, 52f; Second inclined surface 53, 53B1, 53B2, 53C; Second plane 53a, 53b1, 53b2, 53c; Second through hole 54a, 54b; Escape section 61, 61B; First hole 62; Second hole 63; Third through hole 64; Transparent plate 71; First intermediate body 72; Second intermediate body 9, 9B; Mechanical storage section.

Claims

1. A frame-shaped member comprising a first element extending in a first direction and a second element extending in a second direction, connected by a fastening component, wherein the first element has a first inclined surface and a first plane perpendicular to the first direction at its end in the first direction, the second element has a second inclined surface and a second plane perpendicular to the first direction at its end in the second direction, and the fastening component connects the first element and the second element in a state where the first inclined surface and the second inclined surface are in contact, and the first plane and the second plane are in contact.

2. The frame-shaped member according to claim 1, wherein the first element and the second element have the same cross-sectional shape.

3. The frame-shaped member according to claim 1, wherein the fastening component connects the portion where the first plane and the second plane abut.

4. The frame-shaped member according to claim 1, wherein the first element has a hollow first boss portion extending in the first direction at least at its end in the first direction, the second element has a second through hole penetrating the second element in the first direction at its end in the second direction, the first plane is provided at the end of the first boss portion in the first direction, the second plane is provided around the second through hole, and the fastening component engages with the first boss portion while inserted through the second through hole.

5. The frame-shaped member according to claim 4, wherein the first boss portion is provided along the entire length of the first element in the first direction.

6. The frame-shaped member according to claim 5, wherein the first boss portion is formed by extrusion molding and the first plane is formed by cutting.

7. The frame-shaped member according to claim 1, wherein the first element and the second element are made from a second intermediate cut from the same first intermediate.

8. The frame-shaped member according to claim 7, wherein the first intermediate is formed by extrusion molding.

9. The frame-shaped member according to claim 8, wherein the first inclined surface and the second inclined surface are of the same shape, and the first inclined surface and the second inclined surface are in surface contact over their entire surface.

10. The frame-shaped member according to claim 1, which is incorporated into a freezing device, a culture device, or a constant temperature device.

11. A method for manufacturing a frame-shaped member according to claim 1, comprising: obtaining a first intermediate by extrusion molding; cutting out a plurality of second intermediates from the first intermediate; processing some of the second intermediates into the first element and processing the remaining second intermediates into the second element; and fastening the first element and the second element together in a frame shape using the fastening component.

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