JPH054313Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to frames for high-frequency equipment such as CATV and tuners.

BACKGROUND ART Conventionally, in high-frequency equipment such as CATV and tuners, a frame shown in FIG. 8 has been used to accommodate amplifiers, mixers, tuning circuits, etc. In this case, as shown in FIG. 9, a single metal plate is punched out in an unfolded state, and side pieces 10, 10 in the long side direction and shield plates 20, 2 are punched out.
0, 20, side pieces 15 in the short side direction,
15, the short parts of the side pieces 10 and 15 are butted together, and the protruding piece 10a of the side piece 10 is inserted into the slit 15a of the side piece 15.
The side pieces 10 and 15 were joined by caulking Oa. Figures 10a, 10b, 10c
The figure shows details of such a joining process.

Problems that the idea aims to solve By the way, regarding the above frame, the 11th problem
As shown in the figure, since the two-pronged caulking heads 30, 30 are moved from both ends of the frame in the directions of arrows A and A to simultaneously caulk the four projecting pieces 10a at four locations, the side pieces 10, 10 are attached in the longitudinal direction. When compressive force is applied, the side pieces 10, 10 are bent outward, as shown in FIG. There is. Moreover, the crimping head 30 is driven by a cam slider system, which has the problem that the mold is complicated and expensive.
Further, if there is a gap between the side piece 10 and the shield plate 20, there is a problem in that solder failure occurs when dip soldering is performed with circuit components housed within the frame.

Means for Solving the Problems Therefore, the frame of the high-frequency equipment according to the present invention has a substantially rectangular frame made up of four side pieces, and the end of one of the adjacent side pieces is cut off. At the same time, a protruding piece having a groove is provided at the end of the other side piece, and the ends of both side pieces are brought together to engage the protruding piece in the recess, and the protrusion facing the groove is formed into the recess. The convex portion is pressed and engaged with the groove portion by deforming the convex portion to the side.

Effect In the above configuration, adjacent side plates can be joined and fixed by deforming the convex portion, and at that time, no compressive force is applied to the side pieces in the longitudinal direction, and the side pieces are It does not bend outward. Moreover, the convex portion presses and engages with the groove portion, thereby improving the bonding strength between the side pieces.

Embodiment In FIG. 1, reference numeral 15 denotes a side piece in the short direction, and a projecting piece 16 having a V-shaped groove 17 is provided at the end thereof. Further, in FIG. 2, reference numeral 10 denotes a side piece in the longitudinal direction, and a recess 11 and a protrusion 12 are formed by cutting out the end of the side piece. It can be engaged with the recess 11 in the positioned state.

The joining of the side pieces 10 and 15 is as shown in FIG.
5 stand up, butt the ends of the two together, and attach the protruding piece 1.
6 into the recess 11 (see FIGS. 3 and 4). At this time, the convex portion 12 engages with the groove portion 17 at the same time.

Thereafter, as shown in FIG. 5, a force is applied to the convex portion 12 in the direction of arrow B, thereby deforming the convex portion 12 into the concave portion 11. As a result, the convex portion 12 comes into pressure contact with and engages with the groove portion 17 at the portion indicated by Y in FIG.

Incidentally, it goes without saying that the side pieces 10 and 15 are joined and fixed at four locations as in the prior art.

In the above embodiment, the force that deforms the convex portion 12 only acts in the direction of the arrow in FIG.
The side pieces 10 do not bend in the longitudinal direction. Moreover,
The convex portion 12 and the groove portion 17 are directly engaged with each other, and the bonding strength between the side pieces 10 and 15 is improved. In particular, in this embodiment, the convex portion 12 bites into the V-shaped groove portion 17, and the bonding strength becomes stronger.

7a, 7b, and 7c show modified examples of the protrusion 16 and the groove 17 provided at the end of the side piece 15.

In FIG. 7a, a V-shaped groove 17' is also formed at the bottom of the protruding piece 16, and when the side pieces 10 and 15 are joined, the groove 17' also sinks into the edge of the recess 11, increasing the joint strength. It becomes even stronger. FIG. 7b shows the shape of the groove portion 17. In FIG. 7c, a shaped groove 17' is also formed in the lower part of the projecting piece 16, and this groove 17' also engages with the edge of the recess 11.

Effects of the invention As is clear from the above explanation, according to the invention,
The protrusion provided at the end of the other side piece is inserted into the recess formed at the end of one side piece, and the protrusion is engaged with the groove of the protrusion by deforming the protrusion. This eliminates the need for caulking, which requires the complicated and expensive cam slider type described above, and prevents the side pieces from bending in the longitudinal direction due to compressive force, causing the positional accuracy of the shield plate to go out of order and its positioning. Corrections do not take much time, and circuit components can be soldered well. Further, the convex portion directly presses and engages with the groove portion, thereby improving the bonding strength between the side pieces.

[Brief explanation of drawings]

1 to 6 show an embodiment of the frame according to the present invention, FIG. 1 is a front view of the side piece in the short side direction, FIG. 2 is a front view of the side piece in the long side direction, FIG. FIG. 4 is a perspective view during the assembly process, FIG. 5 is a front view after assembly, and FIG. 6 is a perspective view similarly after assembly. FIGS. 7a, 7b, and 7c are front views showing other modifications, respectively. Figures 8 and below show conventional frames, Figure 8 is a perspective view of the frame after assembly, Figure 9 is a perspective view of the frame during assembly, and Figures 10a, 10b, and 10c show the caulking process. 11 is a perspective view showing a similar caulking process, and FIG. 12 is a plan view of the deformed frame. 10... Side piece, 11... Concave portion, 12... Convex portion,
15...Side piece, 16...Protrusion piece, 17...Groove portion.

Claims (1)

[Claims for Utility Model Registration] In the frame of a high-frequency device, which is formed by four side pieces constituting a substantially rectangular frame body, and the ends of the adjacent side pieces are joined at the four corners, one of the adjacent side pieces At the same time, the ends of the two side pieces are cut out to form an uneven part, and the ends of the other side piece are provided with a protruding piece having a groove, and the ends of both side pieces are brought together and the protruding piece is engaged with the recess, so that the protruding piece faces the groove. A frame for a high-frequency device, characterized in that the convex portion is pressed and engaged with the groove by deforming the convex portion toward the concave portion.