JP2005294728A - Cabinet for electrical/electronic components - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cabinet for electrical/electronic components that couples its front panel and top cover in a close-set and stable way, and takes no action to flexibly deform part of the front panel at an assembly time, which is composed of a synthetic-resin compact. <P>SOLUTION: A coupling means that couples an upper plate section 13 of the front panel 1 and a sheet-metal top panel 71 of the top cover 7 has a support coupling mechanism A composed of a fitting piece 74 at the top panel 71 side and a recess fitting part 21, a fitting piece support 22, a contacting part 15 and a receiving part 23 at the front panel 1 side, a support mechanism B composed of a leg 75 at the top panel 71 side and a slide face 42 at the front panel 1 side, and a screw clamp C. While sliding a sliding part 77 of the leg 75 on the sliding face 42, the fitting piece 74 fits into the recess fitting part 21 from above through an assembly action that brings the top cover close to the front panel 1 from behind. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an electrical and electronic equipment casing, and more specifically, an electrical and electronic equipment casing formed by joining a front cover made of a synthetic resin molded body and a casing main body having a sheet metal top plate portion in abutting manner. About the body.

  Various techniques for joining the butted portions of the front panel and the top plate portion of the housing have been conventionally proposed (see, for example, Patent Document 1, Patent Document 2, Patent Document 3, and Patent Document 4).

  Among them, the technique proposed in Patent Document 1 is such that a rib protruding in a stepped shape at the front end of the top cover is inserted forward into the front panel engaged with the main body chassis via a hook, and the top The rear part of the cover is screwed to the main body chassis.

  In the technique described in Patent Document 2, an engaging claw provided on the electronic device body is inserted into the lower side of the front panel fixing hook while elastically deforming and bending the fixing hook. By engaging with the engaging claws through the return deformation, the front panel and the electronic device main body are coupled.

  In the technique described in Patent Document 3, the top cover tongue and the like are sandwiched between the upper surface of the front panel and the receiving ear portion in the vertical direction, and the engagement protrusion of the top cover is inserted into the hole of the receiving ear portion of the front cover. By fitting, the relative positional deviation between the upper surface of the front panel and the top cover is suppressed. In addition, when the tongue of the cover is sandwiched between the upper surface of the front panel and the receiving ear, the cover is inclined at an angle and the tongue is inserted between the upper surface of the front panel and the receiving ear. The engaging projection of the top cover is fitted into the hole of the receiving ear portion of the front cover through the operation of changing the posture of the inclined cover horizontally.

In the technique described in Patent Document 4, an L-shaped piece provided at the front end of the top panel is fitted into an inclined groove of a rib provided on the front panel, and the tip of the L-shaped piece is fitted. And a corner portion are sandwiched between an inclined surface provided in the inclined groove of the rib and a horizontal surface, thereby suppressing a relative positional shift between the front panel and the upper surface panel.
Japanese Patent Laid-Open No. 3-95993 (FIG. 1) Japanese Patent Laid-Open No. 11-121937 JP-A-9-260857 Japanese Utility Model Publication No. 60-194385

  However, in the technique described in Patent Document 1, the front panel and the top cover are not directly coupled to each other, and are merely coupled via the main body chassis. In addition, the front panel and the main body chassis are coupled by engaging the claws of the lock parts of the front panel with the main body chassis, but the claws of the lock parts have an inclined surface, and the front panel When the is pushed toward the main body chassis, the inclined surface of the claw portion climbs onto the main body chassis and the engagement is released. For this reason, when an external force is applied, it is impossible to reliably prevent a gap from being generated at the abutting portion between the front panel and the top cover or the butt portion from being detached.

  In the technique described in Patent Document 2, when the engaging claw of the electronic device main body is inserted into the fixing hook of the front panel, the fixing hook is elastically deformed and bent, and then the fixing hook is restored and deformed to be engaged. Since it is to be engaged with the claw, a gap is inevitably formed at an engagement portion between the fixing hook and the engagement claw, and it is impossible to eliminate such a gap. Therefore, after engaging the fixing hook and the engaging claw, there is always a rattling between the front panel and the electronic device main body, which corresponds to the gap. There is a possibility that a gap is generated at the abutting portion of the lip and the appearance of the appearance is lowered. Further, when the fixing hook is bent, an excessive force may be applied to the fixing hook and the fixing hook may be broken.

  In the technique described in Patent Document 3, the cover is tilted obliquely and its tongue is inserted between the upper surface of the front panel and the receiving ear portion, and then the tilted cover is horizontally changed in posture. Since the engagement protrusion of the top cover is fitted into the hole of the receiving ear part of the cover, after the engagement protrusion is fitted to the hole of the receiving ear part, there is inevitably a gap at the fitting portion. Once formed, it is impossible to eliminate such gaps. For this reason, after the engagement protrusion is fitted in the hole of the receiving ear part, there is always a rattling between the front cover and the top cover, so that there is a backlash between the front cover and the top cover. There is a possibility that a gap may be generated in the portion and the appearance of the appearance may be deteriorated.

  In the technique described in Patent Document 4, the front panel and the upper surface are sandwiched between an inclined surface provided in an inclined groove of a rib of the front panel and a horizontal surface between the tip of the L-shaped piece of the upper panel and the corner portion. Since only relative displacement with respect to the panel is suppressed, when an external force is applied in a direction to separate the top panel and the front panel, the L-shaped piece of the top panel slides on the inclined surface and slides on the top surface. When the panel and the front panel are separated from each other, there is a possibility that a gap is generated at the abutting portion between the upper panel and the front panel, and the appearance is deteriorated.

  As described above, when the technology described in each of the above-mentioned patent documents is applied and the front panel of the housing of the electric / electronic device and the housing body are coupled, the coupled state of the butted portions of the two is unstable. As a result, the front panel and the housing main body are displaced relative to each other in the vertical direction or the front-rear direction, and a gap is generated at the abutting portion, resulting in a decrease in appearance. Further, in the case where the fixing hook of the front panel made of a synthetic resin molded body is bent at the time of assembling as described in Patent Document 2, an excessive force is applied to the fixing hook to cause the breakage. There is a fear.

  The present invention has been made under the above circumstances. In other words, the present invention not only allows the two butted portions to be joined without causing a situation in which a part of the front panel formed by the synthetic resin molding is elastically deformed and bent. After joining, the joining state of the joint part is stabilized, and the positional deviation between the front panel and the housing body is surely prevented, and the joint part is not rattled. An object of the present invention is to provide an electrical and electronic equipment housing in which the occurrence of the problem is eliminated.

  In addition, the present invention does not necessarily have to be able to reliably join the butted portions of the two by simply moving the case body straight forward from the rear of the front panel during assembly. An object of the present invention is to provide an electrical and electronic equipment housing that can eliminate the need to perform an operation of inclining the housing body obliquely and assembling it to the front panel.

  The electrical / electronic equipment casing according to the present invention is divided into a front-open casing main body that houses electrical / electronic equipment elements therein and a front panel made of a synthetic resin molding that is attached to the front end of the casing main body. In addition, the upper plate portion of the front panel and the top plate portion made of sheet metal of the housing main body are coupled to each other via the coupling means. The coupling means includes a support coupling mechanism, a support mechanism, and a screwing mechanism.

  In the present invention, the support coupling mechanism includes a fitting piece bent downward at a front end of the top plate portion and a first rib integrally formed with the front panel and extending in the front-rear direction. A recessed portion that can be fitted and removed in the vertical direction, a fitting piece supporting portion that is provided on the lower end surface of the recessed portion and that supports the fitting piece fitted into the recessed portion, and a vertical direction of the recessed portion. A receiving portion that is provided on the rear end surface and cooperates with a contact portion formed at the rear end of the upper plate portion and squeezes the fitting piece fitted in the recessed portion without backlash in the front-rear direction. And become. The support mechanism is integrally formed with the front panel and a leg piece that is bent downward on the top plate portion at a location closer to the center in the width direction than the formation location of the fitting piece and has a sliding portion at the lower end. And a slide surface provided with a second rib extending in the front-rear direction and having a leg piece support portion for supporting the leg piece. The screwing mechanism is configured to couple the housing body and the front panel in an up and down direction without rattling in the lower part than the installation locations of the support coupling mechanism and the support mechanism.

  If it is this structure, the width of the horizontal space | interval (space | interval of the front-back direction) of the contact | abutting part and receiving part which are equipped in the front panel side is set to the thickness of the downward fitting piece provided in the housing body side. By simply setting the thickness to be equal to the thickness dimension, the fitting piece fitted into the recessed portion from above is squeezed without backlash in the front-rear direction by the cooperation of the contact portion and the receiving portion. Moreover, since the outer end surface of the recessed portion forming the receiving portion is vertical, the fitting piece slides against the receiving portion even when an external force is applied in a direction in which the front panel and the housing body are separated. And the situation of getting out of the recess does not occur. And since a support fitting mechanism exhibits such an effect | action, the situation where a front panel and a housing | casing main body shift | deviate to a front-back direction and a clearance gap produces both will not arise. Further, the positional deviation in the vertical direction between the front panel and the housing body is prevented by the screwing mechanism. Therefore, the gap between the front panel and the housing main body is not generated by the action of the support fitting mechanism and the screwing mechanism. In addition, since the fitting piece is fitted into the recessed portion from above, there is no situation in which a part of the front panel formed by the synthetic resin molding at the time of assembly is elastically deformed and bent. As a result, there is no room for a situation where an excessive force is applied to a part of the front panel and the portion is broken. Furthermore, the support mechanism is useful for preventing bending deformation of the top plate portion of the housing body.

  In the present invention, when the leg piece support portion of the support mechanism supports the leg piece, and the fitting piece support portion of the support fitting mechanism supports the fitting piece, the top plate portion is the upper plate portion. The sliding surface of the support mechanism extends rearward from the leg piece support portion, and the fitting piece has a sliding piece protruding forward at the lower end. On the other hand, while sliding the sliding portion of the leg piece on the sliding surface, the sliding piece is moved forward while the top plate portion is warped and deformed through an assembly operation in which the casing body is brought close to the front panel from the rear. The first rib is provided with a guide surface having a front rising gradient to be guided to the lower plate and introduced to the lower side of the upper plate portion, and the sliding piece over the guide surface falls through the operation of dropping into the recessed portion. The fitting piece fits into the recessed part and is supported by the fitting piece support part. It has manner is, it is possible to adopt a configuration that.

  With this configuration, at the time of assembling, it is possible to reliably join the butted portions by simply performing an operation of bringing the casing body straight forward from the rear of the front panel. For this reason, it is not always necessary to perform the operation of inclining the casing body obliquely and assembling it with the front panel.

  In the present invention, the fitting piece and the leg piece are bent downward at the front end of the top plate portion, and are formed at different locations of the bent pieces over substantially the entire width of the top plate portion. It is desirable that the fitting piece and the leg piece have the same height dimension. According to this, the bent piece not only acts as a rib for reinforcing the top plate portion, but also the bent piece is abutted against the rear end of the upper plate portion of the front panel, The appearance of the butt portion is kept good.

  In the present invention, it is desirable that the first rib has a rigidity that prevents the first guide surface from being bent and deformed by being pushed by the slide piece when the guide piece guides the slide piece forward. . With this configuration, a situation in which an excessive force is applied to the first rib to cause breakage does not occur.

  The electrical and electronic equipment casing according to the present invention is further embodied by adopting the following configuration. That is, the front panel is divided into a front-open casing main body that accommodates electrical and electronic equipment elements and a front panel made of a synthetic resin molded body that is attached to the front end of the casing main body. In the electrical and electronic equipment housing that is coupled in a state where the sheet metal top plate portion of the housing body is abutted against each other, the coupling means is directed downward to the respective front ends of the width direction both ends of the top plate portion. A pair of left and right fitting pieces that are bent, and a pair of left and right first ribs that are integrally formed at both ends in the width direction of the front panel and extend in the front-rear direction, respectively. Separately, a recessed portion that can be fitted and removed in the vertical direction, a fitting piece support portion that is provided on the lower end surface of each recessed portion and that supports the fitting piece fitted in the recessed portion, and each of these recessed portions Formed by the vertical rear end face of the entrance A support coupling mechanism comprising a receiving portion that cooperates with a contact portion formed at the rear end of the upper plate portion and squeezes the fitting piece fitted in the recessed portion in the front-rear direction without rattling; A leg piece that is bent downward on the top plate portion at a location closer to the center of the width direction than the formation portion of the fitting piece and includes a sliding portion at the lower end, and is integrally formed with the front panel and extends in the front-rear direction. A support mechanism comprising a slide surface having a leg piece support portion that is provided on the second rib and supports the leg piece; and the housing main body and the lower part below the respective installation locations of the support coupling mechanism and the support mechanism. A screwing mechanism that joins the front panel to the front panel without rattling, and the fitting piece and the leg piece are bent downward at the front end of the top plate portion and Partitioned and formed at different locations on the bent piece over almost the entire width, Since the height of the leg piece is determined to be the same, the leg piece support part of the support mechanism supports the leg piece, and the fitting piece support part of the support fitting mechanism supports the fitting piece. The top plate portion is arranged in parallel with the upper plate portion, the slide surface of the support mechanism extends rearward from the leg piece support portion, and the fitting piece is While having a sliding piece protruding forward at the lower end, the ceiling through the assembly operation in which the casing body is moved closer to the front panel from the rear while sliding the sliding part of the leg piece on the sliding surface. The first rib is provided with a guide surface having a front rising gradient that guides the sliding piece forward and introduces it to the lower side of the upper plate portion while warping and deforming the plate portion. The fitting piece is moved through the movement of the moving piece falling into the recessed portion. The first rib is pushed by the sliding piece when the guide surface guides the sliding piece forward by being fitted into the recessed portion and supported by the fitting piece supporting portion. The housing body is divided into a bottom case, a top cover including a fitting piece, a leg piece, and a screw insertion hole of the screwing mechanism. It is made more concrete by adopting the configuration of The operation of the present invention will be described in detail with reference to embodiments described later.

  As described above, since the electrical and electronic equipment housing according to the present invention is coupled in a stable state with no gap between the front panel and the housing body, for example, the front panel is mounted on the housing body. Even if an external force is applied to remove the outer surface from the outer surface, a gap is generated at the abutting portion and the appearance is not deteriorated, or a part of the front panel made of the synthetic resin molded body is not broken. Therefore, it is possible to provide an electrical / electronic device casing that maintains a good appearance over a long period of time and is excellent in durability.

  In addition, since the electrical / electronic equipment casing according to the present invention does not involve an operation of bending and deforming a part of the front panel made of a synthetic resin molding during assembly, a part of the front panel is broken by receiving an excessive force. There is no room for things to happen. As a result, the effect of facilitating assembly is achieved.

  The electrical / electronic equipment casing according to the present invention can be suitably used for an electronic equipment casing such as a DVD or a CD drive, and can also be suitably used for an audio equipment casing such as a speaker box.

  FIG. 1 is a partially cutaway plan view showing a DVD housing which is an example of an electrical / electronic equipment housing (hereinafter referred to as “housing”) according to the present invention with a top cover 7 removed. 2 is a partial plan view of the top cover 7, and FIG. 3 is an enlarged schematic perspective view of a main part of the top cover 7 of FIG. 4 is an enlarged schematic perspective view of the main part of the front panel 1, FIG. 5A is an enlarged cross-sectional view of a portion along the line VA-VA of FIG. 1, and FIG. 4B is an enlarged view of the VB portion of FIG. 6 is an enlarged cross-sectional view of a portion along line VI-VI in FIG. 1, FIG. 7 is a side view of the main part of the housing, and FIG. 8 is a partial cross-sectional view for explaining the assembly process.

  This housing is divided into a front panel 1 made of a synthetic resin molding shown in FIG. 1 and a housing main body 5 shown in FIGS. 5A and 5B. The housing main body 5 is further divided into a bottom case 6 and a sheet metal. The top cover 7 is divided.

  As shown in FIG. 1, FIG. 4, FIG. 5, or FIG. 6, the front panel 1 includes a horizontally long surrounding wall 12 extending rearward from the periphery of the front wall 11, and is formed by the upper portion of the surrounding wall 12. The upper plate portion 13 includes a linear reinforcing rib 14 serving as a pressing portion located at a plurality of locations on the back surface side, and a pair of vertical plate-shaped first ribs 2 located at both ends in the width direction on the back surface side. In addition, a horizontal plate-like second rib 4 positioned between the first ribs 2 is provided, and each of the ribs 14, 2, 4 extends long in the front-rear direction.

  As shown in FIG. 1 or FIG. 5, the first rib 2 protrudes rearward from the rear end of the upper plate portion 13 of the front panel 1, and the first rib 2 is provided with a recessed portion 21 opened upward, A lower end surface of the recessed portion 21 is a fitting piece support portion 22, and a vertical rear end surface of the recessed portion 21 is formed as a receiving portion 23. The rear end of the upper plate portion 13 is formed as a contact portion 15. Then, as shown in FIG. 5B, the horizontal distance H between the contact portion 15 and the receiving portion 23 is equal to the wall thickness of the fitting piece 74 described later (the same size in consideration of design tolerances). It has been established. Further, the first rib 2 is provided with a guide surface 24 having a forward rising gradient formed by the upper end edge of the rear portion with respect to the formation portion of the recessed portion 21, and the top portion of the guide surface 24 (the first rib). The vertical interval T between the upper end edge) and the upper plate portion 13 is set to a width that is not shorter than the wall thickness of the sliding piece 76 described later, and the front-rear width D of the recessed portion 21 is defined by the sliding piece 76. It is longer than the protruding length.

  On the other hand, as shown in FIG. 6, the second rib 4 also protrudes rearward from the rear end of the upper plate portion 13, and a recess opened rearward between the second rib 4 and the upper plate portion 13. A point 41 is formed, and an upper end surface of the second rib 4 forming the recess 41 is formed as a slide surface 42. As can be seen from FIG. 5A, the fitting piece support portion 22 of the first rib 2 and the slide surface 42 of the second rib 4 are located at the same height. Further, as shown in FIG. 6, the front end portion of the slide surface 42 of the second rib 4 is formed as a leg piece support portion 43.

  Further, as shown in FIG. 5A, an engagement piece 16 extending rearward is provided at the lower portion of the front panel 1, and an engagement hole portion 17 is formed in the engagement piece 16.

  Next, as shown in FIG. 2 or FIG. 3, the top cover 7 forming the housing body 5 includes a top plate portion 71 and side plate portions bent at the left and right ends of the top plate portion 71. 72 and a back plate portion (not shown). At the front end of the top plate portion 71, bent pieces 73 that are bent downward at a right angle are continuously provided over substantially the entire width of the top plate portion 71. A portion is defined as a fitting piece 74, and a portion closer to the center in the width direction than the formation portion of the fitting piece 74 is formed as a leg piece 75. The height dimension of the leg piece 75 and the fitting piece The height dimension of 74 is the same. The fitting piece 74 has a sliding piece 76 protruding forward at the lower end, whereas the leg piece 75 has a sliding portion 77 formed of a protruding piece protruding forward at the lower end. Note that a guide piece 78 is formed at the lower end of the bent piece 73 so as to protrude slightly forward from the portions excluding the places where the sliding pieces 76 and the sliding portions 77 are formed. Further, as shown in FIG. 7, screw insertion holes 79 are formed in the lower portions of the left and right side plate portions 72 of the top cover 7.

  In FIG. 1, reference numeral 100 denotes a drive unit which is an example of an electric / electronic element, and this drive unit 100 is installed in the bottom case 6.

  In this embodiment, the housing is assembled through a procedure in which the front panel 1 and the bottom case 6 are joined and then the front panel 1 and the top case 7 are joined. As shown in FIG. 5, the engagement claw 61 formed on the bottom case 6 is engaged with the engagement rear portion 17 of the engagement piece 16 at the connection portion between the front panel 1 and the bottom case 6. The bottom case 6 is formed with a screw hole 62 corresponding to the screw insertion hole 77 shown in FIG.

  The front panel 1 and the bottom case 6 are joined at the abutting point between them. That is, at the abutting portion, as shown in FIGS. 5A and 5B, the fitting piece 74 on the top cover 7 side is fitted to the recessed portion 21 on the front panel 1 side, and the recessed portion 21 is fitted. The fitting piece 74 is supported by the fitting piece supporting portion 22 via the sliding piece 76 mounted on the one supporting portion 22, and the abutting portion 15 at the rear end of the upper plate portion 13 of the front panel 1. And the receiving portion 23 of the recessed portion 21 sandwich the fitting piece 74 without rattling. With this configuration, the front panel 1 and the top cover 7 are coupled to each other so that there is no gap at the abutting position and the front panel 1 is not displaced in the front-rear direction, so that the front panel 1 is pulled forward. Even if an external force is applied to remove the front panel 1 from the top cover 7, a gap is generated at the abutting portion and the appearance appearance is deteriorated, or the fitting piece 74 slides on the receiving portion 23. The situation of coming out of the recessed portion 21 does not occur, and further, the situation where the rib 2 on the front panel 1 side made of a synthetic resin molded body is bent and broken does not occur. Further, as shown in FIG. 5A or 7, the mounting screw 63 inserted through the screw insertion hole 79 on the top cover 7 side is screwed into the screw hole 62 on the bottom case 6 side and tightened as shown in FIG. Thus, the top cover 7 is coupled to the front panel 1 through the bottom case 6 without rattling in the vertical direction. Further, as shown in FIG. 6, the leg piece 75 is supported by the leg piece support portion 43 of the second rib 4 via the sliding portion 77, so that the top plate portion 71 is bent and deformed by its own weight. The situation of warping is prevented.

  In the case described above, the upper plate portion 13 of the front panel 1 and the top plate portion 71 of the top cover 7 are coupled in a state of being abutted. The coupling means includes a support coupling mechanism A including the fitting piece 74, the recessed portion 21, the fitting piece support portion 22, the contact portion 15 and the receiving portion 23 shown in FIGS. 6 includes a support mechanism B including the leg piece 75 and the slide surface 42 having the leg piece support portion 43 shown in FIG. 6, and a screwing mechanism C including a mounting screw 63.

  Next, a procedure for abutting and joining the top cover 7 to the front panel 1 to which the bottom case 6 is joined will be described.

  Hold both ends of the top cover 7 with both hands, and as shown in FIG. 8, the sliding portion 77 at the lower end of the leg piece 76 (see FIG. 6) on the top cover 7 side is on the sliding surface 42 (see FIG. 6) of the second rib 4. Place the sliding piece 76 at the lower end of the fitting piece 74 on the guide surface 24 of the first rib 2 and slide the sliding portion 77 on the sliding surface 42 (see FIG. 6). When the operation of moving the top cover 7 straight forward from the rear is performed, the sliding piece 76 rides on the guide surface 24 while the top plate portion 71 is slightly warped and deformed. Is introduced to the lower side of the upper plate portion 13. When the sliding piece 76 gets over the guide surface 24, the sliding piece 76 falls into the recessed portion 21 due to the elastic return action of the top plate portion 71, whereby the fitting piece 74 is fitted into the recessed portion 21 from above. And is supported by the fitting piece support portion 22. When the sliding piece 76 falls into the recessed portion 21, the warp deformation of the top plate portion 71 is repaired, the top plate portion 71 and the upper plate portion 13 of the front panel 1 become parallel, and the appearance of the butted portion is good. Appearance is given.

  In this embodiment, as shown in FIG. 4, the first rib 2 is formed thicker than the connecting rib 25 that connects the first rib 2 to the front panel 1. 2 is given high rigidity, and at the same time, the occurrence of sink marks on the outer surface of the front panel 1 is prevented. If the first rib 2 is thus provided with great rigidity, when the guide surface 24 guides the sliding piece 76 forward, it is pushed by the sliding piece 76 and the first rib 2 is bent downward and deformed. As a result, the first rib 2 is prevented from being broken or deformed.

  In this embodiment, although the case where the fitting piece 74 and the leg piece 75 are partitioned and formed into the bent piece 73 extending over substantially the entire width of the top plate portion 71 has been described, the fitting piece 74 and the leg piece 75 are folded. You may divide | segment from the music piece 73. FIG.

It is the partially broken top view which removed the top cover and showed the electric and electronic equipment housing | casing which concerns on this invention. It is a partial top view of a top cover. FIG. 3 is an enlarged schematic perspective view of a main part of the top cover of FIG. 2. It is the schematic perspective view which expanded the principal part of the front panel. (A) is an expanded sectional view of the part which follows the VA-VA line of FIG. 1, (B) is the VB part enlarged view of FIG. It is an expanded sectional view of the part which follows the VI-VI line of FIG. It is a side view of the principal part of a housing | casing. It is a fragmentary sectional view for demonstrating an assembly process.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Front panel 2 1st rib 4 2nd rib 5 Case main body 6 Bottom case 7 Top cover 13 Upper board part 14 Reinforcement rib (pressing part)
15 Contact portion 21 Recessed portion 22 Fitting piece support portion 23 Receiving portion 24 Guide surface 42 Slide surface 43 Leg piece support portion 71 Top plate portion 73 Bending piece 74 Fitting piece 75 Leg piece 76 Sliding piece 77 Sliding portion 79 Screw insertion hole 100 Drive unit (Electrical and electronic equipment element)
A Support coupling mechanism B Support mechanism C Screwing mechanism

Claims (5)

It is divided into a housing body with an open front surface that accommodates electrical and electronic equipment elements and a front panel made of a synthetic resin molded body attached to the front end of the housing body. In the electrical and electronic equipment housing that is coupled via the coupling means in a state where the top plate made of sheet metal of the body body is abutted,
The coupling means is
A pair of left and right fitting pieces bent downward at respective front ends of both ends in the width direction of the top plate portion, and a pair of left and right portions integrally formed at both ends in the width direction of the front panel and extending in the front-rear direction Each of the first ribs is provided with a recessed portion in which the pair of fitting pieces can be individually fitted and detached in the vertical direction, and the lower end face of each of the recessed portions is fitted into the recessed portion. It is formed by a fitting piece supporting portion that supports the fitting piece and a vertical rear end face of each of the recessed portions, and cooperates with a contact portion formed at the rear end of the upper plate portion to fit into the recessed portion. A support and coupling mechanism comprising a receiving portion that squeezes the mated fitting piece in the front-rear direction without rattling,
A leg piece that is bent downward on the top plate portion at a location closer to the center of the width direction than the formation portion of the fitting piece and includes a sliding portion at the lower end, and is integrally formed with the front panel and extends in the front-rear direction. A support mechanism comprising a slide surface having a leg piece support portion provided on the second rib to support the leg piece;
A screwing mechanism that joins the housing body and the front panel in the up and down direction below the support coupling mechanism and below the respective installation locations of the support mechanism;
The fitting pieces and the leg pieces are bent downward at the front end of the top plate portion, and are formed in different portions of the bent pieces over substantially the entire width of the top plate portion. Since the height of the leg piece is determined to be the same, the leg piece support part of the support mechanism supports the leg piece, and the fitting piece support part of the support fitting mechanism supports the fitting piece. When the top plate portion is arranged in parallel with the upper plate portion, the slide surface of the support mechanism extends rearward from the leg piece support portion,
While the fitting piece has a sliding piece protruding forward at the lower end, the housing body is moved closer to the front panel from the rear while sliding the sliding portion of the leg piece on the sliding surface. The first rib is provided with a guide surface having a front rising gradient that guides the sliding piece forward and introduces it to the lower side of the upper plate portion while warping and deforming the top plate portion through an assembling operation. The fitting piece is adapted to be supported by the fitting piece support portion by fitting the fitting piece into the depression portion through an operation in which the sliding piece that has passed over falls into the depression portion,
The first rib has rigidity of a size such that when the guide surface guides the sliding piece forward, it is pushed by the sliding piece and does not bend and deform downward.
The housing body is divided into a bottom cover, a top cover including a fitting piece, the leg piece, and a screw insertion hole of the screwing mechanism.
An electrical and electronic equipment casing characterized by that. It is divided into a housing body with an open front surface that accommodates electrical and electronic equipment elements and a front panel made of a synthetic resin molded body attached to the front end of the housing body. In the electrical and electronic equipment housing that is coupled via the coupling means in a state where the top plate made of sheet metal of the body body is abutted,
The coupling means is
A fitting piece bent downward at the front end of the top plate and a first rib integrally formed with the front panel and extending in the front-rear direction so that the fitting piece can be fitted and removed in the vertical direction. A fitting piece supporting portion for supporting the fitting piece provided on the lower end surface of the recessed portion and fitted in the recessed portion; and provided on the vertical rear end surface of the recessed portion. A support coupling mechanism comprising a receiving portion that cooperates with a contact portion formed at the rear end of the plate portion and squeezes the fitting piece fitted in the recessed portion without rattling in the front-rear direction;
A leg piece that is bent downward on the top plate portion at a location closer to the center of the width direction than the formation portion of the fitting piece and includes a sliding portion at the lower end, and is integrally formed with the front panel and extends in the front-rear direction. A support mechanism comprising a slide surface having a leg piece support portion provided on the second rib to support the leg piece;
A screwing mechanism for coupling the housing body and the front panel in the up and down direction at a lower position than the respective installation locations of the support coupling mechanism and the support mechanism;
An electrical and electronic equipment casing characterized by comprising: The top plate portion is arranged in parallel with the upper plate portion when the leg piece support portion of the support mechanism supports the leg piece and the fitting piece support portion of the support fitting mechanism supports the fitting piece. And the slide surface of the support mechanism extends rearward from the leg piece support,
While the fitting piece has a sliding piece protruding forward at the lower end, the housing body is moved closer to the front panel from the rear while sliding the sliding portion of the leg piece on the sliding surface. The first rib is provided with a guide surface having a front rising gradient that guides the sliding piece forward and introduces it to the lower side of the upper plate portion while warping and deforming the top plate portion through an assembling operation. 3. The fitting piece is fitted into the recessed portion and supported by the fitting piece supporting portion through an operation in which the sliding piece that has passed over the groove falls into the recessed portion. Electrical and electronic equipment housing. The fitting pieces and the leg pieces are bent downward at the front end of the top plate portion, and are formed at different locations of the bent pieces over substantially the entire width of the top plate portion, and the fitting pieces and The electrical and electronic equipment casing according to claim 2 or 3, wherein the height of the leg pieces is the same. 5. The first rib according to claim 2, wherein the first rib has rigidity of a size such that when the guide surface guides the sliding piece forward, the first rib is pushed by the sliding piece and is not bent and deformed downward. The electrical and electronic equipment casing described in any one of the above.

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