JP2006038404A - Frame structure of case - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To thin the constitution member of a body frame without reducing the strength. <P>SOLUTION: The body frame 52 of a case 50 comprises a pair of substantially rectangular side frames 54 and 54 arranged oppositely and four frame materials 66 arranged among them. At at least longitudinally extending terminal edges of the side frames 54 and 54, hook-like frame sections 58 comprising a first folded section 60 folded to point the other side frame 54 and a second folded section 62 formed by folding the tip of the first folded section 60 so as to point the inside are formed integrally by box folding. The second folded section 62 is provided with a positioning section 64 allowing the insertion of the frame material 66. In arranging the frame material 66, the position of the frame material 66 is regulated by the positioning section 64. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a frame structure of a casing in which a required number of frame members are installed between a pair of side frames arranged to face each other.

  An automatic ice maker that continuously manufactures a large amount of ice blocks is suitably used in facilities such as coffee shops and restaurants and other kitchens. These automatic ice makers include an ice making unit having an ice making mechanism and a freezing mechanism, and an ice storage for storing ice blocks such as ice cubes. A stack-on type automatic ice making machine configured to combine an ice storage unit having a necessary capacity and an ice making unit unit and place the ice making unit unit in the ice storage unit is known (for example, Patent Literature 1). As shown in FIG. 7, the ice making unit 10 has a main body 12 which is a rectangular parallelepiped shape by assembling panels 16 on the front, rear, left and right and upper surfaces of a main body frame 14 forming an exoskeleton. The inside of the housing 12 is divided into an ice making mechanism chamber 20 and a machine room 22 by a partition plate 18 attached to the main body frame 14, and an ice making mechanism (not shown) is stored in the ice making mechanism chamber 20. At the same time, the machine room 22 accommodates various devices such as a refrigeration mechanism 24 such as a compressor CM and a condenser CD, and a control box CB. The ice making mechanism chamber 20 is covered with the panel 16 via a heat insulating material 26.

  The main body frame 14 includes a pair of side frames 28 and 28 that are opposed to each other on the left and right sides, and four frame members 30 that are positioned between the side frames 28 and 28 and connect the side frames 28 and 28. (See FIG. 7). Each of the side frames 28 is formed of a long angle member 28a having an L-shaped cross section, and is cut into right triangles at four positions (the number of corners of the side frame 28) at appropriate positions with respect to one side of the angle member 28a. 28b is provided, the angle member 28a is bent at a substantially right angle at each notch 28b, and the open edge of the abutted notch 28b is fixed by welding (see FIG. 9). Then, the opposite end portions of the angle member 28a are abutted and fixed by welding via a plate-like connecting member 32, thereby forming a rectangular side frame 28 (see FIG. 8). Further, the side frame 28 includes a reinforcing plate 34, a bracket 36 serving as an installation base for other members, and a mechanism part frame serving as an installation base for the ice making mechanism (see FIG. Auxiliary members such as a pair of support plates 38 and 38 that support (not shown) are fixed by welding.

  Then, the end portions of the frame member 30 having an L-shaped cross section are brought into contact with the corner portions of the side frames 28 and fixed by welding, so that the frame member 30 is attached to the corner portions of the side frames 28 and 28. Correspondingly, the main body frame 14 is configured together with the side frames 28 and 28 by being horizontally spaced apart from each other in the front-rear direction and the vertical direction.

By the way, the wiring 42 led out from various devices such as the control box CB disposed in the machine room 22 is supported by a plurality of clamps 40 fixed to the upper side of the side frame 28, so that it does not interfere with other devices. The inside of the machine room 22 is routed so as not to become (see FIG. 10). The clamp 40 constituting the wiring support structure is a thin metal piece having flexibility, and is fixed by welding one end portion thereof to an appropriate position of the side frame 28. The other end of the clamp 40 is bent according to the wiring 42 to hold the wiring 42.
Japanese Utility Model Publication No. 63-196064

  As described above, the main body frame 14 is composed of a large number of members such as side frames 28, 28, a frame member 30, and auxiliary members such as a reinforcing plate 34. Therefore, the management of these members 28, 30, 34 is complicated. In addition, since the members 28, 30, and 34 are fixed by welding, the number of man-hours for the welding work is large, which increases the cost. Further, the side frame 28 bent into a rectangular shape by the angle member 28a having an L-shaped cross section has a relatively low strength, and in order to improve the strength, the use of the thick angle member 28a or the reinforcing plate 34 is adopted. It was necessary to implement measures such as adding additional costs, which also caused an increase in costs. When the members 28, 30, and 34 are assembled, it is difficult to position the members 28, 30, and 34. Particularly, when the side frame 28 and the frame member 30 are assembled, a dedicated shape having a complicated shape is used. Since the welding operation is performed using a fixing jig, it is a very complicated operation. Therefore, in order to improve the workability of welding, special processing such as bossing and stepping processing may be performed on these members. However, the number of processing steps increases, leading to a cost increase.

  Further, since the wiring support structure described above is fixed by welding the clamp 40 to the side frame 28, the number of welding steps increases and the cost increases. When the clamp 40 is fixed by welding, it is also pointed out that the clamp 40 is in the way and the workability of painting is reduced.

  That is, the present invention has been proposed in order to suitably solve these problems inherent in the frame structure of the casing according to the prior art, and without reducing the strength of the casing. It is an object of the present invention to provide a frame structure of a housing that can reduce the plate thickness of each member that constitutes and can reduce costs.

In order to overcome the above-mentioned problems and achieve the intended purpose, the frame structure of the casing according to the present invention is:
In the frame structure of the housing in which a required number of frame members are installed between a pair of side frames arranged opposite to each other,
A first bent part directed to the other side frame at an edge extending at least in the longitudinal direction of the side frame, and a second bent part directed to the tip of the first bent part inwardly A U-shaped frame part consisting of
In the second bent portion, a positioning portion that allows the insertion of each of the frame members and restricts the position is cut out correspondingly.

  According to the frame structure of the housing according to the present invention, the first bent portion directed to the other side frame at the edge extending at least in the vertical direction of the side frame, and the tip of the first bent portion A positioning portion that regulates the position by allowing the insertion of each frame material into the second bent portion and the second bent portion with the second bent portion oriented inwardly. By correspondingly forming the notches, the strength of the frame structure can be improved, so that the members constituting the frame structure can be thinned, and the cost can be reduced. In addition, since positioning is easy when joining the frame material to the side frame, the welding workability is improved, and the frame part of the side frame is integrally bent, reducing the number of welding steps. obtain. Furthermore, a through hole is formed in the second bent portion of the frame portion, and the wiring of the housing is bound and supported by a bundling member inserted through the through hole, so that the welding work can be further omitted, and the wiring support Can be easily implemented.

  Next, the frame structure of the casing according to the present invention will be described below with reference to the accompanying drawings by way of preferred embodiments. For convenience of explanation, the same reference numerals are used for the same elements as those of the casing frame structure shown in FIGS. 7 to 10, and detailed description thereof is omitted. In the embodiment, a case where the frame structure of the casing according to the present invention is applied to an ice making unit in a stack-on type automatic ice making machine will be described, and the arrow A in FIG. And

  As shown in FIG. 1, the casing 50 according to the embodiment has four (necessary number) frame members 66 laid between a pair of side frames 54, 54 facing each other at a predetermined interval in the left-right direction. A main body frame 52 forming an exoskeleton is formed, and the panel 16 is assembled to the front, rear, left, and right sides of the main body frame 52 to form a rectangular parallelepiped shape. The inside of the housing 50 is divided into a left and right ice making mechanism chamber 20 and a machine room 22 by a partition plate 70 attached to the main body frame 52, and an ice making mechanism (not shown) is accommodated in the ice making mechanism chamber 20. At the same time, the machine room 22 accommodates and arranges a refrigeration mechanism 24 such as a compressor CM and a condenser CD, and various devices such as a control box CB. In addition, the ice making mechanism chamber 20 is covered with the panel 16 via a heat insulating material 26, and heat exchange between the ice making mechanism chamber 20 and the outside is suppressed.

  The main body frame 52 includes a pair of left and right rectangular side frames 54, 54, a frame member 66 disposed so as to abut each corner of each side frame 54, and the side frames. It is basically composed of a partition plate 70 located between 54 and 54 and connected to the frame member 66 (see FIG. 2). That is, the side frames 54 are located on the respective side portions of the main body frame 52, and the four frame members 66 extend horizontally in the left-right direction so as to be separated from each other in the front-rear direction and the vertical direction. The frame member 66 is a long metal member having an L-shaped cross section, and is disposed between the side frames 54 and 54 with the apex angle facing outward, the apex angle being the main body. This is the edge of the frame 52. A rectangular bottom plate 68 is disposed at the bottom of the machine room 22 divided by the partition plate 70 and serves as an installation base for various devices installed in the machine room 22. On the other hand, the bottom part of the ice making mechanism chamber 20 is opened, and ice blocks released from the ice making mechanism are dropped by communicating with the inside of an ice storage (not shown). The side frame 54 located on the ice making mechanism chamber 20 side (left side in FIG. 1) is provided with support pieces 63 and 63 for supporting the mechanism part frames 21 and 21 for suspending and supporting the ice making mechanism. The mechanism part frames 21 and 21 are bridged between the support parts 63 and 63 and the support member 86 disposed on the upper part of the partition plate 70 (see FIG. 1).

  The side frames 54 and 54 are metal members formed in a rectangular shape having a frame portion 58 at their respective end edges, and are arranged so that the protruding surfaces of the frame portion 58 face each other. . Here, since the left and right side frames 54 and 54 have the same basic configuration, only the side frame 54 located on the ice making mechanism chamber 20 side (left side in FIG. 1) will be described. As shown in FIG. 3, a frame portion 58 is integrally formed on each side frame 54 by box bending at each end edge of a rectangular plate-like body 56 that serves as an arrangement surface of the side panel 16. Has been.

  Each frame portion 58 has a first bent portion 60 that is bent so as to face the other side frame 54, and excludes a lower frame portion 58D that forms a lower side of the side frame 54, and an upper side of the side frame 54 The frame portions 58A, 58B, and 58C forming the front side and the rear side are each provided with a second bent portion 62 in which the tip of the first bent portion 60 is further bent toward the inside of the side frame 54. ing. That is, the upper frame portion 58 </ b> A, the front frame portion 58 </ b> B, and the rear frame portion 58 </ b> C are bent and formed in a bowl shape (a U shape), and each first bent portion 60 is a direction orthogonal to the plate-like body 56. Each of the second bent portions 62 and the plate-like body 56 are in a parallel positional relationship (see FIG. 5). Thus, the cross-sectional shape of the side frame 54 formed by the plate-like body 56, the upper frame portion 58A, the front frame portion 58B, and the rear frame portion 58C is a U-shape. In the embodiment, the upper frame portion 58 </ b> A of the frame portions 58 is also formed in a bowl shape including the first bent portion 60 and the second bent portion 62, but extends in the vertical direction of the side frame 54. If the second bent portion 62 is provided only in the front frame portion 58B and the rear frame portion 58C, the strength required for the housing 50 can be ensured. Thus, the side frames 54, 54 are not configured to combine angle members as in the prior art, but are configured to integrally form the frame portion 58 by bending the edge of the plate-like body 56. The reinforcing plate and the bracket in the conventional configuration are integrated with the plate-like body 56.

  Each of the second bent portions 62 of the upper frame portion 58A, the front frame portion 58B, and the rear frame portion 58C has substantially the same dimension as the length of one side of the frame material 66 from the corner (attachment position) of the side frame 54. The positioning portion 64 is formed by cutting away the frame material 66 to allow the frame material 66 disposed at the corners of the side frame 54 to be inserted. That is, with respect to the first bent portion 60 formed over one side of the plate-like body 56, the second bent portion 62 is set to be as short as the frame material 66. The frame member 66 is formed by aligning the corner portion formed by the first bent portions 60 and 60 of the frame portions 58 and 58 adjacent to the side frame 54 and the apex angle of the frame member 66. By abutting against the plate-like body 56, the position of the open end portion of the frame member 66 is regulated by the positioning portion 64. Then, in a state where the position of the frame material 66 is restricted by the positioning portion 64 of the side frame 54, both are welded and fixed.

  Further, the plate-like body 56 is provided with an opening portion 56a that functions as an inspection opening or a ventilation opening for various devices disposed in the housing 50 (see FIG. 3). However, the opening edge constituting the opening 56a has a smooth shape by subjecting the corner portion to R-shape or C-cut shape so that the corner portion does not become an acute angle. It is set as follows.

  As described above, the side frame 54 on the ice making mechanism chamber 20 side is provided with a pair of support pieces 63 and 63 spaced apart in the front-rear direction. Each of the support pieces 63 extends in a horizontal direction (a direction toward the opposite side frame 54) after extending a part of the second bent portion 62 of the upper frame portion 58A further downward (inward). The upper frame portion 58A is integrally formed by box bending. Each support piece 63 is provided with an insertion hole 63a. One end of the mechanism part frame 21 is placed on the support piece 63 so that the through hole 21a provided in the mechanism part frame 21 is aligned with the insertion hole 63a. Then, it is fixed by inserting the fixing screw BN.

  As shown in FIG. 4, the partition plate 70 has a frame portion 74 integrally formed at each end edge of a substantially rectangular plate-like body 72 by box bending, and the basic configuration is a side frame 54. It is the same composition as. The partition plate 70 includes a first bent portion 76 in which an upper frame portion 74 </ b> A and a lower frame portion 74 </ b> D extending in the horizontal direction extend in a direction orthogonal to the plate-like body 72. On the other hand, the front frame portion 74B and the rear frame portion 74C extending in the vertical direction extend in a direction orthogonal to the plate-like body 72 (direction directed to the side frame 54 on the machine chamber 22 side). In a U-shaped cross section comprising a first bent portion 76, a second bent portion 78 in which the tip of the first bent portion 76 is further bent inward of the partition plate 70, and a plate-like body 72. Composed. Further, the partition plate 70 has the second bent portion 78 cut in correspondence with each corner (not including the upper rear side where an opening 72a described later) is opened, which is the attachment position of the frame member 66. Each of the positioning portions 80 is formed to be missing, and a hole portion 82 that allows the frame member 66 to be inserted is formed in the plate-like body 72 corresponding to the attachment position of the frame member 66. Note that an opening 72 a for inserting a pipe 84 such as a water pipe is formed on the upper rear side of the plate-like body 72.

  A support member 86 that supports the other end portions of the mechanism part frames 21 and 21 is disposed on the upper frame part 74 </ b> A that forms the upper side of the partition plate 70. The support member 86 has both ends of the plate-like main body portion bent at right angles in different directions, and one bent end portion is connected to the first bent portion 76 of the upper frame portion 74A of the partition plate 70. By fixing with the fixing screw BN through the screw holes 86a and 76a formed in the bent end portion and the first bent portion 76, the other bent end portion is disposed opposite to the pair of support pieces 63 and 63. Is done. Then, the other end of the mechanism frame 21 is placed, and a through hole 21a drilled in the mechanism frame 21 and an insertion hole drilled in the other bent end of the support member 86 (not shown). And the mechanism frame 21 is fixed by inserting the fixing screw BN.

  The wiring 42 connected to various devices such as the control box CB disposed in the machine room 22 is connected to the upper frame portion 58A of the side frame 54 facing the machine room 22 (right side) via a plurality of binding members 44. The machine room 22 is routed along the upper frame portion 58A of the side frame 54 so as not to interfere with other devices (see FIG. 5). This wiring support structure is configured such that the binding member 44 is inserted into a through hole 62a drilled at an appropriate position in the second bent portion 62 of the upper frame portion 58A, and the wiring 42 is bound by the binding member 44. The wiring 42 is held away from the side panel 16 and suspended from the second bent portion 62 of the upper frame portion 58A. As the binding member 44, a synthetic resin convex or string is used.

(Effects of Example)
Next, the effect | action of the frame structure of the housing | casing which concerns on an Example is demonstrated. Each side frame 54 is formed in advance in a required shape taking into account the shape of the frame portion 58 (the shape of the first bent portion 60 and the second bent portion 62) and the positioning portion 64 that positions the frame member 66. A metal plate K is prepared (see FIG. 6A), and the metal plate K is sequentially bent along a planned bending line (a chain line in FIG. 6) by a box bending machine (FIG. 6B). )), A side frame 54 having a frame portion 58 of a required shape at each edge of the plate-like body 56 is obtained (see FIG. 6C). Here, in FIG. 6A and FIG. 6B, the reference numerals attached to the metal plate K indicate the corresponding parts when the side frame 54 is completed. As described above, each side frame 54 is integrally formed with the frame portion 58 by box bending, so that the strength can be improved as compared with a conventional side frame formed by bending an angle member. In addition, the dimensional accuracy of the side frame 54 and the squareness of the corners can be improved. In addition, the side frame 54 does not require a welding operation and can be formed only by bending the metal plate K. Therefore, there is an advantage that a welding process can be omitted when the side frame 54 is formed. Further, the frame portion 58 and the plate-like body 56 are integrally formed, and the plate-like body 56 functions as a mounting base for various members and has a reinforcing action. Brackets and stiffeners can be omitted. Each side frame 54 is formed by bending the plate-like body 56, the upper frame portion 58A, the front frame portion 58B and the rear frame portion 58C so as to have a U-shaped cross section. Compared with a letter-shaped side frame, the strength can be further improved. The partition plate 70 also has a frame portion 74 formed on each edge of the plate-like body 72 by box bending as in the case of the side frame 54. The strength of the partition plate 70 is improved as compared with the conventional product, and the same effect as the side frame 54. Show the effect.

  Next, the assembly process of the housing 50 will be described. The left and right side frames 54, 54 are arranged with the extended surfaces of the frame portion 58 facing each other, and the partition plate 70 between them extends the extended surface of the frame portion 74 to the right (machine room 22 side). ) Is opposed to the side frame 54. One end portion of the frame member 66 is aligned with the corner portion formed by the adjacent first bent portions 60, 60 of the one side frame 54, and the apex angle thereof is aligned with the corner portion. The one end portion of the frame member 66 and the frame portion 58 are welded and fixed while being inserted along the bent portions 60 and 60 and in contact with the plate-like body 56. At this time, the frame member 66 inserted between the positioning part 64 of the upper frame part 58A and the positioning part 64 of the front frame part 58B or the rear frame part 58C extending in the vertical direction is provided with both the frame parts 58, 58, The positioning portions 64, 64 and the first bent portions 60, 60 are positioned in the vertical direction so that the frame member 66 can be easily positioned with respect to the side frame 54, and a simple fixing jig is used. The welding operation can be performed at In addition, the frame member 66 inserted between the positioning portion 64 of the lower frame portion 58D and the positioning portion 64 of the front frame portion 58B or the rear frame portion 58C extending in the vertical direction is used for the corresponding frame portion 58. The position of the frame member 66 can be easily positioned with respect to the side frame 54 by being vertically regulated by the positioning part 64 and the first bent part 60, and a welding operation can be performed only by using a simple fixing jig. . As described above, since the positioning of the frame member 66 with respect to the side frame 54 is facilitated, it is not necessary to perform special processing such as bossing or stepping processing on the member as in the prior art, and the processing cost can be reduced. Further, since the frame member 66 is held between the positioning portions 64 and 64 of the adjacent frame portions 58 and 58 in the side frame 54 and the first bent portions 60 and 60, there is also an advantage that joint strength can be improved. Play. Then, the other end portion of the frame member 66 is fixed by welding to the other side frame 54 in the same procedure.

  The partition plate 70 is attached to the frame member 66 before the other end portion of the frame member 66 is fixed to the other side frame 54 in the hole 82 formed in the plate-like body 72. , And the frame portion 74 and the frame member 66 are fixed by welding. At this time, the frame member 66 positioned on the upper front side is placed on one side of the first bent portion 76 of the upper frame portion 74A, the position of the tip of the other side is regulated by the positioning portion 80, and the hole portion 82 The position in the front-rear direction is restricted (see FIG. 4). On the other hand, the frame members 66, 66 positioned below are placed on one side of the first bent portion 76 of the lower frame portion 74 </ b> D, the position of the tip of the other side is regulated by the positioning portion 80, and the hole portion 82 The position in the front-rear direction is restricted. As described above, also in attaching the partition plate 70, the frame member 66 can be easily positioned with respect to the partition plate 70, and a welding operation can be performed only by using a simple fixing jig. In addition, the lower frame member 66 is inserted and held in the hole portion 82 of the plate-like body 72, and the first bent portion and the positioning portions 80 and 80 of the adjacent frame portions 74 and 74 in the partition plate 70. Since it is hold | maintained between the parts 76 and 76, there also exists an advantage which can improve joint strength.

  As described above, in the frame structure of the housing according to the embodiment, by making the side frame 54 highly rigid, it is possible to omit the reinforcing plate that has been provided for reinforcement in the past, and various types of plate-like bodies 56 are provided. Since the support piece can be formed integrally with the frame portion 58 by providing a function as an installation base of the member and further adopting box bending as a method of forming the side frame 54, the members constituting the casing 50 In addition, when assembling the main body frame 52, the number of welding processes can be reduced not only when the side frame 54 is formed, but the overall cost can be reduced. Further, since the side frame 54 has high rigidity and the bonding strength of the members 54, 66, and 70 is improved, the side frame 54 is necessary as the casing 50 even if the thickness of the constituent members is reduced. Sufficient strength can be ensured. That is, it is possible to reduce the weight of the entire casing 50, and it is possible to facilitate processing and transportation by reducing the plate thickness, and it is possible to reduce various costs such as materials, processing, and transportation.

  In the machine room 22, the wiring 42 is supported by the second bent portion 62 of the frame portion 58 through the binding member 44, so that welding work does not occur as in the prior art, and the binding member 44 itself. However, the cost can be reduced as the wiring support structure. Further, since the bundling member 44 can be attached after painting, there is no possibility of occurrence of rust. Since the wiring support structure is difficult to come off, the wiring support structure can improve reliability.

  Since the second bent portion 62 of the upper frame portion 58A is spaced from the side panel 16 and hangs down from the ceiling surface, the internal space of the housing 50 is set as a humid environment like the ice making mechanism chamber 20. When used, since the second bent portion 62 prevents the condensed water or the like transmitted through the ceiling surface of the ice making mechanism chamber 20 from flowing into the panel 16, the rust of the panel 16 and the deterioration of the heat insulating material are prevented. Can be suppressed.

It is a schematic perspective view shown in the state which removed the panel about the frame structure of the housing | casing which concerns on the suitable Example of this invention. It is a schematic perspective view which decomposes | disassembles and shows the frame structure of the housing | casing of an Example. It is a B arrow line view of FIG. It is CC sectional view taken on the line of FIG. It is the DD sectional view taken on the line of FIG. It is a schematic perspective view which shows the process of a side frame. It is a schematic perspective view which shows the frame structure of the conventional housing | casing in the state which removed the panel. It is a schematic perspective view which shows the conventional side frame. It is a front view which shows the principal part of the conventional side frame. It is the XX sectional view taken on the line of FIG.

Explanation of symbols

42 wiring, 44 binding members, 50 housings, 54 side frames, 58 frame parts,
60 first bent portion, 62 second bent portion, 62a through hole, 64 positioning portion, 66 frame material

Claims (2)

In the frame structure of the housing formed by laying a required number of frame members (66) between a pair of side frames (54, 54) arranged opposite to each other,
A first bent part (60) directed to the other side frame (54) at an edge extending at least in the longitudinal direction of the side frame (54, 54), and the first bent part (60) A U-shaped frame portion (58) composed of a second bent portion (62) with the tip of the inner portion oriented inward,
A frame of the housing characterized in that a positioning part (64) for allowing the frame member (66) to be inserted and restricting the position thereof is formed in the second bent part (62). Construction. A through hole (62a) is drilled in the second bent portion (62) of the frame portion (58), and the casing (50) is wired by the bundling member (44) inserted through the through hole (62a). 42. The frame structure of the housing according to claim 1, wherein 42) is bound and supported.

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