JP3268617B2 - Keypad holding structure in portable radio communication equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a holder for holding a keypad in a device such as a portable radio communication device in which a printed circuit board is disposed adjacent to a position where a keypad (rubber key) is disposed. The present invention relates to a keypad holding structure in a portable wireless communication device or the like which can be fixed easily and securely.

[0002]

2. Description of the Related Art A keypad of an electronic device needs to be held on its back side by a holder such as a resin plate due to its structure.
The holder must be securely fixed so that the key operation can be performed accurately when operating the keypad.

As shown in FIGS. 10 and 11, a conventional keypad holding structure of a portable radio communication device has a holder 2 made of a resin plate for holding a keypad (not shown).
An insertion claw 22 is provided at the lower end of the device 1, and the insertion claw 22 is inserted into the insertion hole 12 provided in the main body case 11, and the upper end side is screwed with a screw 24 through a screw hole 23. 25
Is a printed circuit board, which is disposed adjacent to the holder 21 and supported by a receiving boss 26. 27 is a screw for fixing the printed board 25 to the main body case 11.

[0004]

However, in the conventional keypad holding structure, since the holder 21 for holding the keypad is screwed, a screw component is required and the screwing operation is performed. Therefore, there is a drawback that the parts cost and the assembly cost increase.

The printed circuit board 25 has an L near the end near the keypad (and thus the holder 21).
A CD (Liquid Crystal Display) 28 is arranged, and this LC
Since D28 is large, the vicinity 25a of the end cannot be screwed, and there is no means for reliably preventing the floating near this end.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned drawbacks of the conventional keypad holding structure, and to securely fix the holder for holding the keypad by one-touch operation without using screws or the like, thereby reducing costs. An object of the present invention is to provide a keypad holding structure in a portable wireless communication device or the like, which can be downed and can fix an end portion of a printed circuit board arranged adjacently.

[0007]

According to the present invention, a keypad holding structure in a portable wireless communication device or the like according to the present invention is provided in a portable wireless communication device or the like in which a printed circuit board is arranged adjacent to a position where the keypad is arranged. A holder made of an elastic member for holding is provided with a fitting claw having a concave portion fitted on an edge portion of the printed board on one side located on the printed board side, and on the other side opposed to this, An engaging hole is provided, and a fitting recess is provided on the back surface of the other side, and an engaging claw that engages with the engaging hole is fitted on the inner surface side of the main body case that houses the holder. The holder is provided so as to be fixed in a fitting manner.

The fitting claw and the engagement hole are spaced apart from each other by two.
The fitting recess is provided between the two engagement holes to more securely fix the holder. Also, a slit for removing the holder is formed on the other side of the holder to facilitate removal of the holder.

[0009]

When the other side of the holder is pushed into the main body case while the concave portion of the fitting claw provided on one side of the holder is fitted to the edge of the printed circuit board, the holder is elastically deformed. The engaging claw is engaged with the engaging hole of the holder, and the fitting protrusion is fitted into the fitting recess, so that the holder is easily and securely fitted. This also fixes the vicinity of the edge of the printed circuit board that is easily lifted. When removing the holder, it can be easily removed by inserting the tip of a flathead screwdriver into the holder removal slit formed on the other side and prying it open.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a keypad holding structure in a portable radio communication device or the like according to the present invention will be described with reference to FIGS. FIG.
The same reference numerals are given to the same components as the conventional components described based on 0, and the detailed description is omitted.

The portable radio communication device 10 has a keypad (FIG. 9).
Printed circuit board 25 adjacent to the arrangement position of 31)
Is arranged. 11 is lower case 11A and upper case 11B
Shows the main body case. 29 is a liquid crystal display. The holder 1 for holding the keypad is formed of resin, and the holder 1 has an edge 2 of the printed board 25 on one side 1a located on the printed board 25 side.
5b is provided with a fitting claw 2 having a concave portion 2a fitted thereto, an engaging hole 3 is provided on the other side 1b side facing the fitting claw 2, and a fitting concave portion 4 is provided on the back surface of the other piece 1b side. On the inner surface side of the upper case 11B accommodating the holder 1, an engagement claw 5 which engages with the engagement hole 3 and a fitting protrusion 6 which fits with the fitting concave portion 4 are provided.
Is provided so that the holder 1 is fixed in a fitting manner.

The engaging hole 3 has a tapered outer edge 3a, a tapered 4a from the outer edge of the fitting recess 4, and an inner edge formed vertically. The fitting protrusion 6 is also formed with a taper 6a corresponding to the fitting recess 4. The fitting claw 2 and the engagement hole 3 are provided two at an interval.
It is provided in the middle of the two engagement holes 3 so that the holder 1 is more securely fixed. Also, the other side 1b of the holder 1
A slit 8 for removing the holder is formed on the side to facilitate removal of the holder 1.

The recess 2 a of the fitting claw 2 provided on one side 1 a of the holder 1 is connected to the edge 25 of the printed circuit board 25.
When the other side 1b side of the holder 1 is pushed into the upper case 11B side in a state where the holder 1 is fitted to the upper case 11b, the holder 1 is made of resin and has elasticity, so that the holder 1 bends, as shown in FIG. In addition, the engaging claw 5 engages with the engaging hole 3, and the fitting protrusion 6 fits into the fitting recess 4, as shown in FIG. It can be securely inserted into the upper case 11B.

With the above configuration, as shown in FIG. 2, the force applied by the key pressing operation (the force in the right-angled manner on the holder 1) is in the F1 direction shown by the arrow, and this force is shown in FIG. )
Are supported in an engagement state between the engagement hole 3 and the engagement claw 5 shown in FIG. In addition, the displacement and rattling of the holder 1 in the horizontal direction (the direction of arrow F2 in FIG. 2) are restricted by the fitting state of the fitting recess 4 and the fitting projection 6 shown in FIG. Therefore, the holder 1 is securely fixed in the vertical direction and the horizontal direction, and the vicinity 25a of the end of the printed circuit board 25.
Can be prevented from rising. In addition, as shown in FIG.
The battery case 30 includes the holder 1 and the lower case 11.
A is inserted into a space formed between the two.

FIG. 5 shows an example in which notches 1c are provided on both side edges of the holder 1 and the hooks 9 projecting from the upper case 11B are engaged with each other so that the holder 1 is more securely fixed. FIG. 6 shows that the engaging hole 3 is provided also on one side 1a of the holder 1 and the upper case 11B is provided with an engaging claw (not shown) similar to the engaging claw 5 to more securely fix the holder 1. This is an example in which it is configured to be performed.

[0016]

According to the keypad holding structure of the portable radio communication device or the like according to the present invention, the holder for holding the keypad can be securely fixed by one-touch operation without using screws or the like, and the cost is reduced. This makes it possible to down, and it is also possible to fix the ends of the printed circuit boards arranged adjacently.

[Brief description of the drawings]

FIG. 1 is a perspective view of a main part showing an example in which a keypad holding structure of the present invention is applied to a portable wireless communication device.

FIG. 2 is a perspective view of a back side of a main body case and a back side of a holder.

FIG. 3 is a perspective view of a holder.

4A is a sectional view showing an engagement state between the engagement hole 3 and the engagement claw 5, and FIG. 4B is a sectional view showing an engagement state between the engagement recess 4 and the engagement protrusion 6. FIG. FIG.

FIG. 5 is a perspective view showing another configuration example for more securely fixing the holder.

FIG. 6 is a perspective view showing still another configuration example for more securely fixing the holder.

FIG. 7 is a perspective view showing the positional relationship of the holder with the lower case removed.

FIG. 8 is a perspective view showing a loaded state of a battery case.

FIG. 9 is an overall perspective view showing a main body of the portable wireless communication device.

FIG. 10 is a perspective view showing a keypad holding structure in a conventional portable wireless communication device.

FIG. 11 is a perspective view showing a state in which a holder is being mounted in a keypad holding structure in a conventional portable wireless communication device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Holder 2 Fitting claw 2a Depression 3 Engagement hole 4 Fitting recess 5 Engagement claw 6 Fitting protrusion 8 Slit for holder removal

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) H01H 13/00-13/76 H04B 1/38-1/58 H04M 1/02-1/23

Claims (3)

(57) [Claims] In a portable radio communication device or the like in which a printed circuit board is arranged adjacent to a position where a keypad is arranged, a holder made of an elastic member for holding the keypad has one side located on the printed circuit board side. Provided with a fitting claw having a recess fitted to the edge of the printed circuit board, provided with an engagement hole on the other side opposite to this, and provided with a fitting recess on the back surface of the other side, On the inner surface side of the main body case accommodating the holder, an engaging claw that engages with the engaging hole and a fitting protrusion that fits with the fitting recess are provided so that the holder is fixed in a fitting manner. A keypad holding structure in a portable wireless communication device or the like, wherein the keypad is structured. 2. The portable wireless device according to claim 1, wherein two fitting claws and two engaging holes are provided at an interval, and a fitting recess is provided between the two engaging holes. A keypad holding structure in a communication device or the like. 3. The holder according to claim 1, wherein a slit for removing the holder is formed on the other side of the holder.
A keypad holding structure in the portable wireless communication device or the like as described in the above.