JPH0135515Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field This invention relates to an electronic equipment case used for electronic equipment such as a programmable controller.

(b) Prior Art As is well known, when manufacturing a case for an electronic device, a manufacturing method such as plastic molding or sheet metal processing is selected depending on the production quantity. By the way, when installing electronic devices on panels etc., they are often attached to support rails.
Therefore, cases of this type are increasingly being constructed with means for attaching support rails, but in order to manufacture such cases, it is easy to form them using plastic molding. The method is suitable for mass production, and considering the production cost, it is not suitable for medium to small quantity production. On the other hand, if it were to be carried out by sheet metal processing, it would take too many man-hours to manufacture it, including the means for attaching the support rail, which is also a factor in high production costs.

(c) Purpose of the invention This invention was proposed to solve the above problems, and by integrally molding the support groove that constitutes the support rail attachment means into the case by extrusion molding, it can be made inexpensively and easily. It is an object of the present invention to provide a case for electronic equipment equipped with this type of support rail attachment means that can be manufactured.

(d) Structure of the device This device is formed by extruding a long aluminum material with a substantially U-shaped cross section and cutting it to an arbitrary length. In this case, a support groove into which a support rail can be inserted is integrally formed along the extrusion molding process, thereby configuring an electronic device case equipped with a support rail attachment means.

(e) Embodiment FIG. 1 is an exploded perspective view showing the structure of an electronic device case according to the invention, in which 1 is an aluminum case formed by extrusion molding into a long U-shaped cross section. The case body is formed by cutting a material (not shown) to a predetermined length L in the extrusion direction (X-Y). A support groove 11 into which a square-shaped DIN support rail 4 can be inserted is integrally formed approximately in the center of the outer surface of the case body 1 along the extrusion direction (X-Y). This support groove 11 consists of a guide groove 11a into which one support piece 4a of the support rail 4 is inserted, and a recess 11b where the support surfaces 4a', 4b' of the support pieces 4a, 4b of the support rail 4 are in contact. A mounting tool 5 is attached to the back surface 1c of the main body on the lower surface 1b side of the main body with respect to a guide groove 11a formed on the upper surface 1a side of the main body. The other support piece 4b is held. As shown in FIGS. 2 and 3, the fixture 5 has a sliding frame 51 mounted on a fixing plate 52 screwed to the main body 1 so as to be slidable vertically with respect to the rail 4 and on a pressing spring 53. Therefore, it is configured to be attached so as to press the rail 4. Note that a side plate 2 is attached to the two side surfaces of the opening in the extrusion direction (X-Y) of the main body 1, and a front plate 3 is attached to the front opening side of the main body 1, so that the electronic device case A is attached. configured. To attach such a case A to the support rail 4, the back surface 1c of the case A is opposed to the support surfaces 4a' and 4b' of the rail 4, and the guide groove 11a is engaged with the support piece 4a of the rail 4. , case A
When pressed against the rail 4, the tip 5 of the sliding frame 51
The slide frame 51 is slid downward against the pressure spring 53 by the C surface 51a' formed in the support groove 1a, and the rail 4 is fitted into the support groove 11. To remove the case A from the rail 4, support the rail 4 by applying a screwdriver or the like to the window 51b of the sliding frame 51 using the tip 52a' of the L-shaped fixing piece 52a extending from the fixing plate 52 as a fulcrum. This is done by removing the tip 51a of the sliding frame 51 from the piece 4b.

(f) Effects of the invention This invention was developed by cutting a long aluminum material having a substantially U-shaped cross section into a required length by extruding aluminum as described above, and then cutting the aluminum material to a desired length. In addition, since the support groove for attaching the support rail along the extrusion direction is integrally formed at the same time as the aluminum material is formed, the support rail attachment means can be easily and inexpensively formed, and the case body can be cut at any position in the extrusion direction. It is also possible to have the effect of having a desired support groove.

[Brief explanation of drawings]

FIG. 1 is an exploded perspective view showing the configuration of a case for electronic equipment according to the invention, FIG. 2 is a front view showing the case attached to a support rail, and FIG. 3 is a side view of the same. 1...Case body, 1c...Back of main body, 11...
...Support groove, 11a...Guide groove, 11b...Recess,
2...Side plate, 3...Front plate, 4...Support rail,
4a, 4b...Support piece, 5...Mounting tool, 51...
Sliding frame, 51a...Tip portion, 52...Fixing plate.

Claims (1)

[Scope of utility model registration request] A case body formed by cutting a long aluminum material extruded into a substantially U-shaped cross section to an arbitrary length in the extrusion direction, two side plates covering both sides of the opening of the case body, and the case. A case for electronic equipment comprising a front plate that covers the front opening of the main body, characterized in that a support groove for attaching a support rail is integrally formed approximately in the center of the outer surface of the back surface of the case main body in the extrusion direction. Case.