JPS6328393Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Field of the invention The present invention relates to an outer box using a painted steel plate in a box body that is open on the top surface and has a machine room on one side of the lower part.

(B) Background art and its problems Figures 1 and 2 show the structure of a conventional outer box for a freezer, etc. 1 is an unpainted strip-shaped steel plate that is bent to form left and right side walls 2, 3 and the front case. The main body is an outer wall, which has a wall 4, flanges 5 and 6 at its upper and lower ends, and flanges 7 at the rear ends of the left and right side walls 2 and 3, and 10 is a back wall plate which has flanges 8 and 9 at its upper and lower ends. ,
11 is a lower side 11A, an upper side 11B forming the upper wall of the machine room, and a rising side 11C connecting these two sides.
This is a bottom plate which is formed by bending and forming flanges 12 at these ends. The outer wall main body 1 and the back wall plate 10 are joined by spot welding at the flange 7, and the bottom plate 11 is placed on the flanges 6 and 9 and spot welded at the flanges 6 and 9 to form an outer box. do. The machine room 13 is formed by opening rearward at the front wall 4, left side wall 2, and bottom plate 11, and this opening is formed by a notch 17 in the back wall plate 10. The outer box formed in this manner is provided with an angle reinforcing member to reinforce the bottom part, and the reinforcing members 14, 14 have a generally L-shape as a whole, and are connected to the flanges 6 and 8 at the lower ends of the left and right side walls 2, 3 It is spot welded to the rear end flange 7, and the overall length is approximately L.
The reinforcing material 15 in the shape of a letter is located at the lower side 11A of the bottom plate 11.
The bottom plate 11 at the corner of the rising side 11C
and are spot welded to the back wall plate 10. The reinforcing member 16 is also spot welded to the lower end flange 6 of the front wall 4. The outer box constructed in this way is finished by painting the surface using a painting device.

In the conventional outer box, the outer peripheral wall of the outer box is constructed by welding the outer wall main body 1 and the back wall plate 10 as described above, and the bottom plate 11
are welded to the bottom of these and reinforced by welding reinforcing material. This is achieved because the assembly does not use painted steel plates, and painted steel plates have the disadvantage that they cannot be constructed in this manner by spot welding due to the presence of a coating film.

(C) Purpose of the invention This invention consists of two main parts, so that the outer box can be constructed using painted steel plates, and in particular, the front, rear, left and right walls are made of bent painted steel plates. , No screw-fastening parts are provided on the front or left and right sides,
The present invention also provides an outer box having a structure that provides sufficient strength.

(d) Outline of the idea Front, left and right walls, an external solid wall body with a downward groove and a lower flange formed by bending strip-shaped painted steel plates at the lower end of each wall, and an upper edge forming the upper wall of the machine room. and a lower side, and a raised side connecting these, a bottom plate of a steel plate having an upward flange inserted into the groove at the end of the lower side, and a bottom plate of a steel plate that is inserted into the groove of the outer peripheral wall opposite to the raised side. A reinforcing member is provided on the vertical side with a fixing part for screwing the end of the bottom plate, and the outer peripheral wall, the bottom plate and the reinforcing member The outer box has a structure in which the base plate is screwed to the flange portion, and the bottom plate is screwed to the fixing portion.

(E) Example 20 of the invention is a painted steel strip plate bent to form left and right side walls 21, 22, front and rear walls 23, 24, and a downward groove 25 formed at the lower end of each of these walls, and from the inner wall of this groove. The outer peripheral wall is formed by bending a lower flange 26 extending in the horizontal direction. When forming the groove 25, each wall 21, 2 is bent to prevent the paint film from peeling off.
The lower ends of the grooves 2, 23, and 24 are slightly spaced from the wall of the groove 25, and the bending radius is made slightly larger. Reference numeral 27 denotes a bottom plate, and an upper side 27A and a lower side 27B forming the upper wall of a machine room 34, which will be described later, and a rising side 27C connecting these sides are formed in the middle part, and an upwardly facing side 27C is formed at the end of the lower side 27B to be inserted into the groove 26. The flange 28 is formed by bending a plated steel plate. Note that flanges are also formed at the ends of the upper side 27A and the rising side 27C for reinforcement. Reference numeral 29 denotes an L-shaped angle reinforcing member, and the horizontal side 2 is inserted into the groove 25 at the lower end of one wall 21 of the outer peripheral wall 20 facing the upright side 27C, and is arranged on the lower surface of the lower flange 26.
9A and a vertical side 29B rising from both ends of this horizontal side, and the vertical side 29B has an upper side 27A of the bottom plate 27.
A fixing part 30 is formed to screw the corner part of each of the parts. A reinforcing member 31 is spot-welded to the lower side 27B of the bottom plate 27 along the right end flange 28 of the lower side 27B. 32 is the lower side 27B of the bottom plate 27
A reinforcing material 33 is spot-welded to the corner of the upright side 27C and the front wall 23 facing the machine room 34.
A reinforcing material whose rising edge is inserted into a groove 25 at the lower end is screwed to a flange 26 at one end and to a reinforcing material 29 at the other end. In order to securely fix the reinforcing member 29, the vertical side 29B is fixed to the bent portion 21A with rivets or screws.

In assembling the outer box 35, the outer circumferential wall 20 is bent forward so that the tips of the rear wall 24 and the rear bent portion 21A of the left side wall 21 are parallel to each other, and these portions are fixed with rivets. The outer peripheral wall 20 constitutes a square frame. For this outer peripheral wall body 20, the reinforcing material 29 connects the horizontal side 29A to the lower flange 26 of the left side wall 21.
Screw the rear vertical side 29B to the left side wall 21.
Screw it to the rear end bent portion 21A. On the other hand, bottom plate 2
Reinforcing materials 31 and 32 are previously spot-welded to 7, the bottom plate 27 is assembled from below the outer peripheral wall 20, the flange 28 and the reinforcing material 31 are inserted into the groove 25, the bottom plate 27 is screwed to the flange 26, and The corner part of the upper side 27A is screwed to the fixing part 30 from below. Thereafter, the reinforcing material 33 is screwed to the flange 26 and the reinforcing material 29. 39 is reinforcing material 31, 29
The legs are screwed together. With this configuration, the gaps between the upper side 27A and the rising side 27C and the outer peripheral wall 20 are sealed with a sealing material such as hot melt, and the outer peripheral wall 20 and the bottom plate 27 form a machine room 34. The machine room 34 is provided with a notch 36 in the rear wall 24 so that repairs and required machines can be inserted into and pulled out of the machine room 34. The outer box 35 is combined with an inner box (not shown) having an open top, and a frame plate 40 is provided to connect the inner box and the upper open end of the outer box 35, and a heat insulating material is provided between the inner box and the outer box 35. This box is filled to form a heat insulating box 37, a lid 38 is provided on the top opening of the box, and when combined with a refrigeration device, it becomes a refrigerator or a freezer.

(f) Effects of the invention In this invention, the outer box is composed of two parts: an outer peripheral wall formed by bending the front, rear, left and right walls, and a bottom plate combined with this. Since the upward flange of the bottom plate is inserted into the bottom plate, and the bottom plate is screwed to the lower flange at the lower end of the outer peripheral wall and the fixed part of the reinforcing material, there are few main parts of the outer box structure, and the screw-fastening points are located on the front, left and right sides. Since it does not appear on the side surface, it has an excellent appearance, and the groove at the lower end of the outer peripheral wall not only engages with the bottom plate and reinforcing material but also is effective in reinforcing the lower end of the outer peripheral wall.

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view of a conventional outer box, Fig. 2 is a vertical sectional side view of the bottom of the assembled outer box of Fig. 1, Fig. 3 is an exploded perspective view of the outer box of the present invention, and Fig. 4. is the third
Bottom vertical side view of the assembled outer box shown in Figure 5.
The figure is a plan view of the P-circle part in FIG. 4, and FIG. 6 is a front perspective view of the freezer. 20... Outer peripheral wall, 21... Left side wall, 22...
Right side wall, 23...Front wall, 24...Rear wall, 25...
Downward groove, 26...lower flange, 27...bottom plate,
28...Upward flange, 29...Reinforcement material, 30
……Fixed part.

Claims (1)

[Scope of utility model registration request] In a box body that is open on the top surface and has a machine room on one side of the lower part, each of the front, rear, left and right walls, a downward groove formed at the lower end of each of these walls, and a lower flange extending from the inner wall of this groove are provided. An outer circumferential wall body formed by bending a band-shaped painted steel plate, and a raised side connecting the upper side and lower side forming the upper wall of the machine room are formed in the middle part, and the end of the lower side is provided with the groove. A bottom plate of a steel plate forming an inserted upward flange, a lateral side inserted into the groove of one wall of the outer peripheral wall opposite to the upright side and screwed to the lower surface of the lower flange, and from both ends of the lateral side. and a reinforcing member having a vertical side having a fixing part for screwing an upper corner part of the bottom plate, and a lower side of the bottom plate is screwed to the lower flange.