JP2544567Y2 - Front panel positioning mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a mechanism for positioning a front panel with respect to a panel stay.

[Prior Art] Conventionally, as this type of front panel positioning mechanism, there has been a mechanism shown in FIGS. 3 to 5.

In the drawings, A is a box-shaped front panel having a resin-made rear surface opened, and a front portion B of the front panel A is shown.
On the back surface, two or three round bosses C are projected rearward at predetermined intervals in the horizontal direction, and a reinforcing rib D is provided at the base thereof for reinforcing the strength. Note that the tip C1 of the round boss C projects from the rear opening edge E of the front panel A. A screw hole G for inserting a screw F is formed on the outer periphery near the rear opening edge E of the front panel A.

H is a panel stay inserted into the front panel A. The panel stay H has a vertical portion I and a top portion J.
, Left and right side portions K, and a horizontal portion (not shown), which are formed so as to be in contact with the inner surface of the front panel A. In the vertical portion I, a positioning hole L is formed at a position corresponding to the above-mentioned round boss C so that the round boss C can penetrate therethrough.
Is a perfect circular shape, and the left and right positioning holes L are formed in a laterally long hole shape. M is a female screw into which a screw F formed on the top surface K of the panel stay H is screwed. N is a chassis fixed to the back surface of the vertical portion I of the panel stay H.

Therefore, in order to assemble the front panel A and the panel stay H, first, the positioning hole M of the panel stay H is inserted into the round boss C of the front pal A for positioning, and the front panel A is opened from the rear opening edge E. After inserting the panel stay H, the screw F inserted into the screw hole G of the front panel A is screwed and fixed to the female screw M of the panel stay H.

When the positioning hole M is inserted into the round boss C, the center positioning hole M is mainly responsible for positioning the panel stay, and the left and right positioning holes M are the panel stay H with the center positioning hole M as a fulcrum. This is to prevent rotation.

FIG. 4 is a longitudinal sectional view showing another usage state of the conventional example. In FIG. 4, O is a column projecting rearward from the back surface of the front portion B of the front panel A. The printed circuit board P is fixed by screws Q in parallel with the front surface B. At this time, a hole P1 through which the round boss C is inserted is formed in the printed board P.

[Problems to be Solved by the Invention] The conventional front panel positioning mechanism is configured as described above, and requires that the tip C1 of the round boss C does not protrude from the rear opening edge E of the front panel A. Since the positioning with the positioning hole M becomes difficult, in order to improve the insertability into the positioning hole M, the tip portion C1 of the round boss C is set to a length that protrudes from the rear opening edge E of the front panel A. There is a need to. However, in this case, sink marks R and the like are generated on the visible surface (front portion B) of the front panel A, and the appearance is deteriorated. Further, if reinforcing ribs D are provided to reinforce the strength of the round boss C, the shape of the mold becomes complicated and the cost increases.

Further, since the free end C1 of the round boss C protrudes from the rear opening edge E of the front panel A, as shown in FIG. When the part B does not become horizontal and a decorative plate or the like is attached to the front part B, a special jig is required.

Further, when the printed circuit board P is installed in the front panel A, the round boss C becomes an obstacle, so that an extra processing operation of forming a hole P1 for inserting the round boss in the printed circuit board P is required. And the like.

"Means for Solving the Problems" The present invention has been made to solve the above-mentioned drawbacks, and has a box-shaped front panel, and a panel stay inserted and fixed in the front panel. At least one positioning rib protrudes from the inner surface of the front panel, and a guide groove is formed on the panel stay at a position corresponding to the positioning rib and into which the positioning rib can penetrate. .

Hereinafter, the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of a front panel and a panel stay to which a front panel positioning mechanism according to the present invention is applied, before being assembled, and FIG. 2 is a perspective view showing a used state of the front panel.

In the above drawings, reference numeral 1 denotes a box-shaped front panel having a resin-made rear surface opened. On the inner surface of the front panel 1, at least one positioning rib 4 is provided on a top surface 2 and left and right side surfaces 3. Are horizontally protruded from the rear opening edge 5 toward the front part 6. A plurality of holes 8 for inserting screws 7 are formed in the top surface 2 and the left and right side surfaces 3 near the rear opening edge 5.
Further, a recess 10 for attaching a decorative plate 9 is formed on the surface of the front portion 6 of the front panel 1. Reference numeral 11 denotes a mark formed on the outer peripheral surface of the front panel 1 immediately above the positioning rib 4 formed on the top surface portion 2.

Reference numeral 12 denotes a panel stay to be inserted into the front panel 1. The panel stay 12 includes a top surface portion 13, left and right side portions 14, a vertical portion 15, and a bottom portion (not shown). These are formed in such a size that they come into contact with the inner surface of the front panel 1. In the top surface portion 13 and the left and right side surface portions 14, at positions corresponding to the positioning ribs 4, guide grooves into which the positioning ribs 4 can freely enter.
16 is formed in the rearward direction, and a chamfer 17 is formed at the entrance to facilitate entry. A female screw 18 to which the screw 7 is screwed is formed on the top surface 13, the left and right side surfaces 14, and the bottom surface. Reference numeral 19 denotes a chassis fixed to the back surface of the vertical portion 15 of the panel stay 12.

"Operation of Embodiment" Next, assembly of the above-described embodiment will be described.

First, the mark 11 is opposed to the guide groove 16 formed on the top surface portion 13 of the panel stay 12, and the panel stay 12 is inserted from the rear opening of the front panel 1.
The positioning ribs 4 penetrate into the front panel 1 to position the panel stay 12 up, down, left and right.

Next, a screw 7 is inserted into a hole 8 formed in the top surface portion 2 and the left and right side surface portions 3 of the front panel 1, and the screw 7 is screwed into a female screw 18 of the panel stay 12, whereby the front panel 1 and the panel The stay 12 is connected and fixed.

Before the front panel 1 and the panel stay 12 are connected and fixed, since nothing protrudes from the rear opening edge 5 of the front panel 1, as shown in FIG. The decorative panel 9 can be easily attached to the concave portion 10 of the front portion 6 with the rear opening edge 5 placed down.

[Effects of the Invention] As described above, the present invention includes a box-shaped front panel 1 made of resin and a panel stay 12 inserted and fixed in the front panel 1. The panel stay 12 has at least one positioning rib 4 protruding therefrom, and the panel stay 12 is formed with a guide groove 16 at a position corresponding to the positioning rib 4 so that the positioning rib 4 can enter thereinto.

Therefore, the positioning ribs 4 can be made sufficiently thinner than the thickness of the front panel 1, so that sink marks or the like do not occur on the visible surface of the front panel 1 and the appearance is improved. Further, since the positioning ribs 4 are formed on the inner surface of the front panel 1, the shape of the mold is simplified, and the cost is reduced.

Furthermore, since the positioning ribs 4 are formed on the inner surface of the front panel 1, when a printed circuit board is installed in the front panel 1, there is no need to perform any processing on the printed circuit board, and the printed circuit board can be easily installed. . Also, since nothing protrudes from the rear opening edge 5 of the front panel 1, the front panel 1 is placed with the rear opening edge 5 downward, and the decorative plate 9 is easily placed in the concave portion 10 of the front portion 6. Can be stuck on.

[Brief description of the drawings]

FIG. 1 is a perspective view of a front panel to which a front panel positioning mechanism according to the present invention is applied and before assembly of a panel stay, FIG. 2 is a perspective view showing a use state of the front panel, and FIG. FIG. 4 is a perspective view before assembling a front panel and a panel stay to which a conventional front panel positioning mechanism is applied, FIG. 4 is a longitudinal sectional view showing another conventional front panel positioning mechanism, and FIG. It is a perspective view which shows the use condition of the same front panel. 1 front panel, 4 positioning rib, 5 rear opening edge, 6 front part, 9 decorative board, 10 concave part,
12: Panel stay, 16: Guide groove.

Claims (1)

(57) [Scope of request for utility model registration] A box-shaped front panel formed of a resin; and a panel stay inserted and fixed in the front panel. At least one positioning rib protrudes from an inner surface of the front panel. A positioning mechanism for a front panel, wherein a guide groove is formed in the panel stay at a position corresponding to the positioning rib, and the positioning rib is formed so that the positioning rib can enter therein.