JPH0720822Y2 - Slide switch knob structure - Google Patents

Description

[Detailed Description of the Invention] Outline Regarding a knob structure of a slide switch used in an electronic device, a knob structure of a slide switch that is easy to assemble and has high strength and does not easily come off or be damaged is provided. In order to enable the slide switch provided inside the electronic device housing to be operated from outside the electronic device housing by a slide knob that is slidably fitted in a long hole formed in the electronic device housing. In the knob structure of the slide switch
Two elastic portions formed in a substantially U shape are integrally formed so that each end portion is joined to the back surface of the thin plate-shaped slide portion, and the elongated hole is provided near the joint portion of the elastic portion and the slide portion. A step portion that can be loosely fitted in the slide portion, and a tray portion that can be engaged with the lever of the slide switch is integrally formed so as to be joined to the vicinity of the curved portions of the two elastic portions. By forming a knob and inserting the slide knob into the elongated hole from the side of the tray, the elastic portion is elastically deformed, and the step portion is slidably fitted in the elongated hole.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a knob structure for operating a slide switch provided inside an electronic device housing from the outside of the electronic device housing.

For example, in a small electronic device such as a pager,
A power switch and other operation switches are mounted on the printed circuit board in the same way as other electronic parts, and when this printed circuit board is mounted in the housing, it slides onto the operation knobs that are slidably fitted in the housing. The switch lever is engaged so that the switching operation can be performed from the outside of the device.

The operation knob used for such a small electronic device is
Since it is very small, it is not easy to handle at the time of assembly, and the strength of the loose fitting portion with the housing is insufficient, and it may fall off easily or be easily damaged. Therefore, a knob structure that is easy to assemble and has high strength is desired.

2. Description of the Related Art FIG. 4 is a perspective view for explaining a knob structure of a slide switch used in a conventional electronic device such as a pager.

The device case (case) is composed of an upper case 10 and a lower case 11, and a cutout 12 is formed in the lower case 11. A guide member 13 is integrally provided inside the vicinity of the notch 12 and a knob guide groove 14 is formed.

Reference numeral 15 is a slide knob, and the slide knob 15 includes a thin plate-like slide portion 16 having a plurality of grooves (grooves for catching finger pads or nails) formed on the surface thereof, and the slide knob 16 of the slide knob 16. U-shaped saucer part integrally formed on the back side
It is composed of a pan 17 and a knob guide 18 which is integrally formed in the lower part of the pan 17.

Reference numeral 19 denotes a printed circuit board on which electronic components are mounted, and a slide switch 20 is mounted on the printed circuit board 19 like other electronic components. Reference numeral 21 denotes a slide switch lever, which is adapted to engage with the pan portion 17 of the slide knob 15.

However, in the knob guide groove 14 formed in the lower case 11,
Insert the knob guide 18 of the slide knob 15 and hold it as it is, and print it so that the lever 21 of the slide switch 20 mounted on the printed circuit board 19 engages with the pan 17 of the slide knob 15. The substrate 19 is inserted and fixed in the lower case 11, and the upper case 10 is fitted into the lower case 11 and fixed by screws or the like, whereby the assembly is performed.

FIG. 5 is a perspective view for explaining the configuration of another conventional technique.

Reference numeral 30 denotes a case of the electronic device, and a long hole 31 is formed in the case 30 in a portion of the printed circuit board provided inside the case 30 facing the slide switch. A recess 32 is formed near the elongated hole 31 on the outside of the case 30.

Reference numeral 33 denotes a slide knob, and the slide knob 33 has a tray portion 34 that can be engaged with a lever of a slide switch on the back surface of a thin plate-shaped slide portion 37 having a plurality of grooves formed on the surface thereof.
And a pair of upper and lower knob slip-off preventing portions (elastic portions) 35 are integrally formed on the left and right sides. The knob removal prevention portion 35 has a step portion 36 in the vicinity of the joint with the slide portion 37, and is formed so as to become thinner toward the tip.

However, at the time of assembly, by inserting from the tip side of the knob removal prevention part 35 of the slide knob 33 into the elongated hole 31 of the case 30, the pair of knob removal prevention parts 35 are elastically deformed on the left and right respectively, and the stepped portion 36 forms the elongated hole 31. By loosely fitting the slide knob
33 is held slidably. After that, the printed circuit board is mounted at a predetermined position so that the lever of the slide switch of the printed circuit board engages with the tray portion 34.

However, according to the configuration of FIG. 4, it is necessary to perform other work while holding the slide knob by hand during assembly.
This work is complicated, and the work efficiency is low, and the structure such as forming a groove for guiding the slide knob in the case (housing) is complicated, and the component mounting efficiency is low.

Further, according to the configuration of FIG. 5, the drawbacks of the configuration of FIG. 4 can be solved, such as the assembling is simplified, but a pair of left and right knob removal preventing portions integrally formed on the back surface of the slide portion are provided. However, due to its structure, it is weak in strength and weak in elastic force.Therefore, it is not possible to take a large number of steps in the step portion. There was a problem that the parts would fall out, or the knob removal prevention part would break.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a knob for a slide switch that is easy to assemble, has high strength, and does not easily come off or be damaged. Is to provide the structure.

Means for Solving the Problems Two elastic portions formed in a substantially U shape are integrally formed so that respective ends are joined to the back surface of a thin plate-shaped slide portion, and the elastic portion and the slide portion are joined together. Inside the electronic device housing, stepped portions that can be loosely fitted in the elongated holes formed in the electronic device housing are formed near the joints, and are fitted respectively near the curved portions of the two elastic portions. The slide knob is formed integrally with a tray portion that can be engaged with the lever of the slide switch provided on the. Then, by inserting the slide knob into the elongated hole from the side of the tray, the elastic portion is elastically deformed, and the step portion is slidably fitted in the elongated hole to solve the above-mentioned problems. .

Effect According to the present invention, the elastic portion for preventing the slide knob from coming off is substantially U-shaped, that is, one foot and the other foot are continuous at the curved portion, and the elongated hole of the housing is formed. When they are inserted into the body, the legs repel each other at their curved portions, so that the elastic force of the elastic portion increases and a large amount of elastic deformation can be obtained. As a result, a large step can be formed in the step portion that loosely fits into the elongated hole of the housing, and it is less likely that the step portion will easily fall off during the operation after assembly.

Further, since the tray portion that can be engaged with the lever of the slide switch is integrally formed in the vicinity of the curved portion of the two substantially U-shaped elastic portions so that both sides thereof are joined,
This also increases the strength and reduces the possibility of easy breakage.

Further, even in the assembling work, it can be easily attached only by inserting and pressing it into the elongated hole of the housing from the side of the tray.

Embodiment An embodiment of the present invention will be described below in detail with reference to the drawings.

1 to 3 are explanatory views of a knob structure of a slide switch to which the present invention is applied.

A slide knob 40 has a substantially U-shaped elastic portion 42 on the back surface of a thin plate-shaped slide portion 41 having a plurality of grooves (grooves for catching finger pads or nails) on its surface. 43 is integrally formed, and further, a saucer portion 44 is integrally formed near the curved portions of the elastic portions 42, 43. Steps 45 and 46 are formed inwardly at joints of the substantially U-shaped elastic portions 42 and 43 with the slide portion 41, respectively.

A printed circuit board 49 has a plurality of electronic components mounted on the printed circuit board 49.
The slide switch 51 having the is mounted.

Reference numeral 52 denotes a case of the electronic device. In the case 52, an elongated hole 53 is formed in a portion of the printed circuit board 49 provided inside the electronic device facing the slide switch 51.
A recess 54 is formed near 53.

However, at the time of assembly, if each of the legs of the substantially U-shaped elastic portions 42 and 43 is elastically deformed in the direction of arrow A by inserting it into the elongated hole 53 of the case 52 from the tip side of the tray portion 44 of the slide knob 40, a step difference is formed. The parts 45 and 46 are loosely fitted in the elongated holes 53, and the slide knob 40 is slidably held. After that, the printed circuit board 49 is mounted at a predetermined position so that the lever 50 of the slide switch 51 of the printed circuit board 49 engages with the pan portion 44.

As a result, by sliding the slide knob 40 along the concave portion 54 of the case 52, the lever 50 of the slide switch 51 is slid via the elastic portions 42, 43 and the saucer portion 44, for example, turning the power ON / OFF. Can be done.

According to the present embodiment, the elastic portion for preventing the slide knob 40 from coming off is substantially U-shaped, and the elongated hole 53 of the case 52 is
Each leg is deformed in the direction of the arrow A when it is inserted into, but the curved portions repel each other, so that a large elastic restoring force can be obtained and the long hole 53 of the case 52 can be obtained.
It is possible to increase the step amount of the step portions 45 and 46 that are loosely fitted to the slide knob 40, and it is less likely that the slide knob 40 will easily fall out during the operation after assembly.

In addition, the tray portion that engages with the lever 50 of the slide switch 51
Since 44 is integrally molded in the vicinity of the curved portions of the substantially U-shaped elastic portions 42 and 43 so that both sides thereof are joined, its strength is high even with respect to movement in the sliding direction (arrow B direction). Therefore, the elastic portion 42 of the slide knob 40 is less likely to be easily damaged.

Effect of the Invention As described in detail above, the present invention integrally forms two substantially U-shaped elastic portions on the back surface of the slide portion, and further has a saucer portion that engages with the lever of the slide switch, and has two trays on both sides. U
Since the slide knob is integrally formed so as to be bonded to the vicinity of the curved portion of the character-shaped elastic portion, its elastic force and strength are increased, and the step amount of the step portion can be increased, and the length of the housing can be increased. The present invention has an effect that it is possible to reduce the possibility of slipping out of the hole or damage, and to easily perform the mounting work to the housing.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention, FIG. 2 is a side view of the embodiment of the present invention, FIG. 3 is a rear view of a slide knob used in the embodiment of the present invention, and FIG. FIG. 5 is a perspective view of another prior art. 40 …… Slide knob, 41 …… Slide part, 42,43 ……
Elastic part, 44 ... saucer part, 45, 46 ... step part, 49 ... printed circuit board, 50 ... lever, 51 ... slide switch, 52
…… Case (casing), 53 …… Oval hole.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hideki Sonobe 1015 Kamiodanaka, Nakahara-ku, Kawasaki-shi, Kanagawa Fujitsu Limited (56) References: 54-28074 (JP, U)

Claims (1)

[Scope of utility model registration request] 1. An elongated hole (5) formed in an electronic device casing (52).
The slide switch (51) provided inside the electronic device casing (52) can be operated from the outside of the electronic device casing (52) by the slide knob (40) that is slidably fitted in the 3). In the knob structure of the slide switch, the two elastic portions (42, 43) formed in a substantially U shape are integrally formed so that each end is joined to the back surface of the thin plate-shaped slide portion (41), Step portions (45, 46) that can be loosely fitted in the elongated holes (53) are formed in the vicinity of the joints between the elastic portions (42, 43) and the slide portion (40), and the two elastic portions are further formed. The slide knob (40) is formed by integrally forming a tray portion (44) that can be engaged with the lever (50) of the slide switch (51) so as to be joined to the vicinity of the curved portions of (42, 43). And inserting the slide knob (40) into the oblong hole (53) from the side of the saucer (44). More, the elastic portions (42, 43) is elastically deformed, knob structure of the slide switch step portion (45, 46) is characterized in that so as to slidably loosely fitted into the long hole (53).