JP4742895B2 - Mounting structure of the bracket to the chassis - Google Patents

Description

  The present invention relates to a mounting structure for a metal fitting to a chassis.

  An example of a conventional mounting structure of a metal fitting to a chassis will be described with reference to FIG. The chassis 3 shown in FIG. 2 is formed so that the right side plate 3a and the left side plate 3b rise vertically from the bottom plate, and the right side plate 3a, left side plate 3b and bottom plate are bent so that the rear plate 3c of the vertical surface rises from the bottom plate. ing.

  The metal fitting 4 is formed in a U-shaped cross section, and a U-shaped right side surface 4b and a U-shaped left side surface 4c extend in a right angle direction from both sides of the U-shaped rear surface 4a. Screws 7 and 7 are respectively inserted into screw insertion holes 3d and 3f provided in the rear plate 3c of the chassis 3, and the metal fitting 4 is screwed into a screw hole (not visible in FIG. 2) of the U-shaped rear surface 4a of the metal fitting 4. Is fastened to the chassis 3.

  In this mounting structure of the metal fitting to the chassis, there is a problem that the metal fitting 4 is displaced with respect to the chassis 3 by the difference between the inner diameters of the screw insertion holes 3d and 3f and the outer shape of the screw 7, and the metal fitting 4 is not accurately positioned on the chassis 3. was there.

In another example of the mounting structure of the metal fitting to the conventional chassis shown in FIG. 3, the chassis 5 has the right side plate 5a and the left side plate 5b rising vertically from the bottom plate, and the right side plate 5a, the left side plate 5b and the bottom plate are bent. Thus, the rear plate 5c of the vertical surface is formed to rise from the bottom plate.

  The bracket 6 is formed in a U-shaped cross section, and a U-shaped right side surface 6b and a U-shaped left side surface 6c extend in a right-angle direction from both sides of the U-shaped rear surface 6a. Screws 7 and 7 are respectively inserted into the screw insertion holes 5d and 5e provided on the right side plate 5a and the left side plate 5b of the chassis 5, and screws provided on the U-shaped right side surface 6b and the U-shaped left side surface 6c of the metal fitting 6, respectively. The metal fitting 6 is fastened to the chassis 5 by being screwed into the holes 6d and 6e.

  When fastening the screws 7 and 7 to fix the metal fitting 6, the U-shaped rear surface 6a of the metal fitting 6 is brought into close contact with the side surface of the rectangular parallelepiped jig placed on the bottom plate of the chassis 5 so that the U-shaped rear surface 6a becomes vertical. Is positioned.

  In the mounting structure of the metal fitting to the chassis, the metal fitting 6 may be fixed to either the right side plate 5a or the left side plate 5b as shown in FIG. 4A. Further, when the chassis 5 is deformed so that the right side plate 5a and the left side plate 5b are opened as shown in FIG. 4B, when the screws 7 are tightened, the right side plate 5a and the left side plate 5b are in the vertical direction. The right side plate 5a and the left side plate 5b may not be corrected in the same way.

  According to the sheet metal housing structure of the electronic device apparatus proposed in Japanese Patent Application Laid-Open No. 2005-327981, the insertion piece 2a of the rear plate 2 is inserted into the fitting hole 5b surrounded by the fitting piece 5a of the top plate 5. . And the bending piece inner surface of the fitting piece 5a and the top plate and the insertion piece 2a and the insertion piece bending portion 2b are in a state of being pressed and held, and the top plate 5 is fitted into the rear plate 2 and fixed.

In the sheet metal housing structure of the electronic device apparatus proposed in the above Japanese Patent Application Laid-Open No. 2005-327981, the rear plate 2 and the top plate 5 are not positioned, so the relative position between the rear plate 2 and the top plate 5 is There was a problem that it was not determined accurately. Further, since the rear plate 2 and the top plate 5 are not screwed together, they are not firmly fixed, and if the top plate 5 is pulled strongly, the rear plate 2 may be detached from the rear plate 2.
JP 2005-327981 A, paragraph 0013, FIG. 1, FIG.

  The present invention has been made in view of the above points, and an object of the present invention is to provide a mounting structure of a metal fitting to a chassis that is accurately positioned and can be firmly fixed to the chassis. .

The mounting structure of the metal fitting to the chassis of the present invention has left and right side plates rising vertically from the bottom plate, the first hole is formed in one of the side plates, and the rear end of the other side plate is vertically A folded back plate is formed, the chassis having a slit and a second hole formed in the back plate, a first surface parallel to the back plate, and a second surface parallel to the side plate. , A cut and raised tongue piece vertically cut from the first surface and having a surface parallel to the side plate, a third hole provided in the first surface, and a fourth hole provided in the second surface And the first hole, the fourth hole, and the second hole in a state where the metal fitting and the chassis are positioned by fitting the cut and raised tongue piece and the slit . The hole and the third hole are fastened .

Further, the mounting structure of the metal fitting to the chassis of the present invention has left and right side plates rising vertically from the bottom plate, the first hole is formed in one of the side plates, and the rear end of the other side plate is A rear plate bent vertically is formed, a chassis that is cut and raised vertically from the rear plate and has a plane parallel to the side plate and a second hole, and a chassis parallel to the rear plate. The first surface has a second surface parallel to the side plate, and a slit, a third hole, and a fourth hole provided in the second surface are formed in the first surface. It consists of a metal, in a state of being positioned between the bracket and the chassis by fitting the cut-and-raised tongue and the slit, the first hole and the fourth hole and the second hole and third The hole is fastened .

  According to the mounting structure of the metal fitting to the chassis of the present invention, the positioning is made accurately and the metal fitting can be firmly fixed to the chassis.

The best mode for carrying out the present invention will be described below with reference to examples. FIG. 1 is an exploded perspective view showing a mounting structure of a metal fitting to a chassis according to an embodiment of the present invention. In the chassis 1 shown in FIG. 1, the right side plate 1a and the left side plate 1b rise vertically from the bottom plate, and the right side plate 1a, the left side plate 1b and the bottom plate are bent so that the vertical rear plate 1c rises from both side plates and the bottom plate. It is formed to rise.

The metal fitting 2 is formed in a U-shaped cross section, and a U-shaped right side surface 2b and a U-shaped left side surface 2c extend in a direction perpendicular to both sides of the middle U-shaped rear surface 2a. The rear plate 1c and the right plate 1a extending from the left side plate 1b of the chassis 1 are provided with a screw insertion hole 1f and a screw insertion hole 1e, respectively. The rear plate 1c of the chassis 1 is further provided with a slit 1d extending in the vertical direction.

The U-shaped rear surface 2a of the metal fitting 2 is provided with a cut-and-raised tongue piece 2d extending in a perpendicular direction, and further provided with a screw hole 2g. The right side plate 2b of the metal fitting 2 is provided with a cut-and-raised tongue piece 2e obtained by bending a tip portion vertically cut and raised from the right-side plate 2b so as to extend in a direction parallel to the right-side plate 2b, and the raised tongue piece 2e has a screw hole 2f. Is provided.

  In order to fasten the metal fitting 2 to the chassis 1, first, the metal fitting 2 is inserted into the rear portion of the chassis 1 in the direction of the arrow shown in the drawing. At this time, the raised tongue piece 2d of the metal fitting 2 is fitted into the slit 1d of the chassis 1, and the position of the metal fitting 2 in the left-right direction with respect to the chassis 1 is determined. In this state, the screw insertion hole 1e is aligned with the screw hole 2f, and the screw 7 inserted through the screw insertion hole 1e is screwed into the screw hole 2f. Further, the screw 7 inserted through the screw insertion hole 1f is screwed into the screw hole 2g. By tightening these screws 7, the metal fitting 2 is firmly fixed in a state where it is accurately positioned with respect to the chassis 1.

  The embodiment is configured as described above, but the invention is not limited thereto. For example, when the metal fitting 2 is thin and it is difficult to form a screw hole with sufficient strength, the screw hole 2g or the screw hole 2f is used as a screw insertion hole. The metal fitting 2 may be fastened with a nut.

  Further, a tongue piece may be provided on the chassis 1 and a slit for fitting with the tongue piece may be provided on the metal fitting 2. Furthermore, a screw insertion hole may be provided only in the rear plate of the chassis, and the effect of the present invention can be obtained even if the screw insertion hole is provided in each of the front plate, the right side plate, and the left side plate.

It is a disassembled perspective view which shows the attachment structure of the metal fitting to the chassis which is Example 1 of this invention. It is a perspective view which shows the example of the attachment structure of the metal fitting to the conventional chassis. It is a perspective view which shows the other example of the attachment structure of the metal fitting to the conventional chassis. 4A is a plan view for explaining the operation of the mounting structure of the metal fitting, and FIG. 4B is a schematic perspective view of members for explaining the operation of the mounting structure of the metal fitting.

Explanation of symbols

1 chassis, 1a right side plate, 1b left side plate, 1c rear plate, 1d slit, 1e, 1f screw insertion hole, 2 metal fittings, 2a U-shaped rear surface, 2b U-shaped right side surface, 2c U-shaped left side surface, 2d cut and raised tongue, 2e cut Raised tongue, 2f, 2g screw hole,
3 chassis, 3a right side plate, 3b left side plate, 3c rear plate, 3d, 3f screw insertion hole 4 bracket, 4a U-shaped rear surface, 4b U-shaped right side surface, 4c U-shaped left side surface 5 chassis, 5a right side plate, 5b left side plate 5c Rear plate, 5d, 5e Screw insertion hole 6 Metal fitting, 6a U-shaped rear surface, 6b U-shaped right side, 6c U-shaped left side,
6d, 6e Screw hole 7 Screw

Claims (2)

It has left and right side plates that rise vertically from the bottom plate,
A first hole is formed in one of the side plates;
A rear plate is formed by vertically folding the rear end of the other side plate;
A chassis having a slit and a second hole formed in the rear plate;
A first surface parallel to the rear plate and a second surface parallel to the side plate;
A cut and raised tongue piece vertically cut and raised from the first surface and having a surface parallel to the side plate, a third hole provided in the first surface, and a fourth hole provided in the second surface; Consists of a metal fitting formed,
The first hole, the fourth hole, the second hole, and the third hole are fastened in a state where the metal fitting and the chassis are positioned by fitting the cut and raised tongue piece and the slit. mounting structure for fitting to the chassis, characterized in that is. It has left and right side plates that rise vertically from the bottom plate,
A first hole is formed in one of the side plates;
A rear plate is formed by vertically folding the rear end of the other side plate;
A chassis that is vertically raised from the rear plate and has a cut-and-raised tongue piece having a surface parallel to the side plate and a second hole;
A first surface parallel to the rear plate and a second surface parallel to the side plate;
A slit formed in the first surface, a third hole, and a metal fitting formed with a fourth hole provided in the second surface;
The first hole, the fourth hole, the second hole, and the third hole are fastened in a state where the metal fitting and the chassis are positioned by fitting the cut and raised tongue piece and the slit. mounting structure for fitting to the chassis, characterized in that is.

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