JPS5952139A - Assembling structure of casing - Google Patents

Abstract

PURPOSE:To prevent the casing from deformation under a pressing force is acted on a front or a rear plate from outside of the casing, and improve the assembling workability, concerning the assembling structure of the casing including a front plate, a rear plate and right and left side plates. CONSTITUTION:The top end of a bent piece 7 of a rear plate 4 is fitted into a fitting part 6 of a front plate 3 which is formed of plural bent pieces, having a difference in level, 6a, 6b, 6c, then the front plate 3 and the rear plate 4 are joined, a right and a left side plates formed nearly in box type are covered on said joining part, thereafter the side plate 5 and the rear plate 4 are fixed by screwing screws 12, 13 into lower holes 8, 9 of the bent piece 7 via a through hole 15. By such assembling structure, although a pressing force in front and rear direction from outside is acted on the front plate 3 or the rear plate 4, as the top end of the bent piece 7 of the rear plate 4 and the front plate 3 are mutually supported, the front plate 3 and the rear plate 4 are prevented from damage. As the top end of the bent piece 7 of the rear plate 4 is fitted into the fitting part 6 of the front plate 3 formed of plural bent pieces, having the difference in level, 6a, 6b, 6c, although an external force in right and left direction is acted, the removing of the bent piece 7 of the rear plate 4 does not occur.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an assembly structure of a housing having a front plate, a rear plate, and left and right side plates.

In the conventional case assembly, the front plate 21 is assembled as shown in FIG.
and a bent piece 211L on the side of the rear plate 22, respectively.
22&, and these bent pieces 21&, 2
The front plate 21 and the rear edge 2 are placed opposite each other so that the side plates 22L and 22L are opposed to each other, and the side plate 23 formed in a substantially box shape is fitted to the bent pieces 21 & 22L, and then the side plate 23 and the front plate 21
and the rear plate 22 are fixed with screws 24 and 25, respectively.

However, in this structure, when a pushing force is applied to the front plate 21 or the rear plate 22 from the outside, the side plate 21
There is no problem with the strength of the part that is screwed to 3, but since there is nothing to support the front plate 21 and the rear plate 22 between the multiple screws, that part is weak in strength and is susceptible to external forces. There was a risk of deformation if it was added. In order to prevent this deformation, it may be possible to reduce the gap between the screws by using a large number of screws, but in this case, it is time-consuming and costly to tighten the screws. However, the drawbacks are that it becomes expensive and the serviceability deteriorates. Since the head of the screw 24 was located in front of the front plate 21, the external appearance was also unsightly.

The wooden invention aims to provide an assembly structure that can eliminate the above-mentioned conventional drawbacks.1: The wooden invention will be explained based on drawings showing embodiments thereof. This figure shows a stand heater, where 1 is a casing of the stand heater, and 2 is an installation leg provided at the bottom of the casing 1.The casing 1 has a front plate as shown in FIGS. 3 and rear plate 4
and left and right side plates 6, and a plurality of bent pieces 61L, 6b, 6 with steps on both sides of the front plate 30.
0 forms a fitting portion 6. Furthermore, bent pieces 7 that fit into the fitting portions 6 are formed on both sides of the rear plate 4. 8 and 9 are pilot holes provided above and below the bent piece 7 of the rear plate 4, and 10.11 are recesses provided above and below the substantially box-shaped side plate 6; As shown in the figure, the heads of the screws 12 and 13 are inserted into the hole. Reference numeral 14 denotes a protrusion provided in the substantially box-shaped side plate 6 so as to correspond to the recesses 10 and 11, and this protrusion 14 is provided with a screw through hole 16. Further, the recesses 10 and 11 are provided at positions corresponding to the lower holes 8 and 9 of the bent piece 7. □In the above configuration, when assembling the casing 1, first insert the tip of the folded piece 7 of the rear plate 4 into a plurality of folded pieces 6 and 7 with steps.
, 6b, , 60 to connect the forelimb 3 and the rear plate 4 to the fitting part 6 of the front plate 3, and left and right side plates 6 formed in a substantially box shape so as to cover this joint part. Then, by screwing the screws 12 and 13 into the lower holes 8 and 9 of the bent piece 70 through the screw through hole 16, the side plate 6 and the rear plate 4 are fixed. Such a set s')', l'l'
By adopting the /j construction, even if a pushing force is applied to the front plate 3 or the rear plate 4 from the outside in the front-rear direction, the tip of the folded piece 7 of the rear plate 4 and the front plate 3 will not move as shown in FIG. Because they support each other, the front plate 3 and the rear plate 4 do not deform. Further, the tip of the bent piece 7 of the rear plate 4 is fitted into the fitting part 6 of the front plate 3 formed by the plurality of bent pieces 6N, 6b, 60 with steps, so that external force in the left and right direction is prevented. Even if the force is applied, the bent piece 7 of the rear plate 4 will not come off. Furthermore, since the heads of the screws 12.13 are located within the surface portion 9.'11 provided on the side plate 6, the heads of the screws 12.13 are visible from the front of the front plate 3. Thus, C has a good appearance.

In the above embodiment, the bent piece 7 is formed on the rear plate 4, and the >H” joint e of the bent piece 7 is formed on the front plate 3. Even if the front plate 3 is formed with a bent piece, the same effects as in the above embodiment can be obtained.

As described above, according to the present invention, both sides of the front plate and both sides of the rear plate are formed by bending a plurality of folds provided on either side of the front plate or the rear plate and having a step. A fitting part formed on one piece and a bent piece provided on one of the pieces are joined by fitting, and the left and right side plates formed in a substantially box shape are covered to cover this joint part, Furthermore, since the left and right side plates are screwed to the bent pieces, even if a pushing force is applied to the front or rear plate from the outside, they will not deform, and as a result, the number of screws can be reduced. It is possible to obtain something with excellent assembly workability and serviceability.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a stand heater employing the assembly structure of the present invention, and FIG. 2 is a perspective view of a stand heater employing the assembly structure of the present invention. [Fig. 3 is a partially exploded perspective view showing the structure; Fig. 3 is an I + I view showing the fitted state of the front plate and rear plate; Fig. 4 is a sectional view showing the assembled state of the front plate, rear plate, and side plate; FIG. 6 is a sectional view showing a conventional one-cost assembly process. 3...front plate, 4...rear plate, 6...
... Side plate, 6 ... Fitting part, 7 ... Bending piece, 12.13 ... Screw. Name of agent: Patent attorney Toshio Nakaichi and one other person Figure 4 Figure 5

Claims (1)

[Claims] It has a front plate, a rear plate, and left and right side plates, and both sides of the front plate and both sides of the rear plate are provided on either side of the front plate or the rear plate, and have a step. The left and right side plates are connected by a fitting part formed by a plurality of folded bent pieces and a bent piece provided on one of the other sides, and are formed into a substantially box shape so as to cover this joint part. Then, screw the left and right plates 111 onto the bent pieces described above and assemble the casing.