JPS6213298Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a structure for attaching a switch to a panel, and an object of the present invention is to provide a structure that allows a switch to be attached to a panel with one touch without requiring screws or the like.

In the conventional structure for mounting a switch to a panel, for example, an engaging part for positioning and a screw hole are provided on the front of the switch case, the engaging part is inserted into the panel mounting hole for positioning, and the screw inserted through the panel is inserted into the screw hole. There was a device that was installed by screwing into a hole and tightening, but this had the disadvantage that the number of parts increased by the number of screws, and the work of assembling the screws was troublesome.

The present invention eliminates the above-mentioned drawbacks, and one embodiment thereof will be described below with reference to the drawings.

Figures 1A and 1B are a longitudinal sectional view and a front view of an embodiment of a push switch to which an embodiment of the switch mounting structure of the present invention is applied, respectively;
The figure is an exploded perspective view of the push switch.
In the figure, the push switch 11 has a metal case 12, and the case 12 is formed by bending an upper plate 13, both side plates 14, and a rear plate 15, and the upper plate 13 has a T-shape having a narrow part 13a at the front end. It has a protruding engaging portion 13b and a triangular hole 13c. Both side plates 14
Each has a pair of abutment plate portions 14a, 14b bent at its front end, an engaging portion 14d having a recess 14c at its lower front end, and an engaging convex portion 14e at its lower end. A pair of protrusions 14f are formed to protrude. The rear plate 15 has a convex portion 15a at its inner center.

16 is a metal spring plate for holding down the lock pin;
As shown in FIGS. 3A and 3B, both side portions 16a, central holding portion 16b, and front L-shaped portion 16c are bent. 17 is a lock pin, Fig. 3 A, B
As shown in FIG. 2, an L-shaped engaging portion 17a is formed at one end, and a hook portion 17b is formed at the other end. Lock pin 17
The holding portion 1 presses the vicinity of the engaging portion 17a against the spring plate 16.
6b, and the hook portion 17b is assembled in a state in which it is sequentially inserted through the holes 16d and 16e and engaged with the front end of the hole 16e, and is rotatable about the hole 16d as a fulcrum. This leaf spring 16 (lock pin 17) is housed and attached to the lower surface of the upper plate 13 within the case 12, and the portion of the lock pin 17 that protrudes from the upper surface of the spring plate 16 is housed in the triangular hole 13c.
According to the assembly structure of the lock pin 17 and the leaf spring 16, the lock pin 17 and the leaf spring 16 are small in size and the hook portion 17b is formed in the L-shaped portion 16.
The lock pin 17 is engaged with the hole 16e in the hole 16c to prevent the lock pin from coming off, thereby stabilizing the operation of the lock pin 17.

18 is a substrate, which has engaging convex portions 18a on both sides;
For example, two rows of three terminal plates 19 each having a contact portion 19a and a terminal portion 19b are implanted through the terminal plate. The substrate 18 is fitted onto the lower surface of the case 12 by fitting the protrusions 18a on both sides between a pair of protrusions 14f, as shown in FIGS. It is bent and fixed to each center side in the longitudinal direction and the width direction.

20 is a slider made by resin molding, and has a heart-shaped cam portion 20a on the top surface of the main body, a pair of recesses 20b on the bottom surface, a blind hole 20c for housing the coil spring 21 on the rear surface, and a rectangular cylindrical shape on the front surface. The holding portion 22 is integrally formed in a protruding manner. The holding part 22 has square holes 22a in the longitudinal direction, a pair of slits 22b on both sides, and a pair of engagement holes 2 in the upper and lower sides.
2c and a pair of elastic holding portion halves 22d.
is formed. Reference numeral 23 denotes a two-pronged metal sliding contact having a pair of contact portions 23a, each of which connects the slider 20.
It is housed in the lower surface recess 20b of.

24 is a knob made of aluminum die-casting, for example.
A protrusion 24b is integrally formed on the rear surface of the knob 24a, and the protrusion 24b has inclined surfaces 2 on the upper and lower rear surfaces, respectively.
It has a pair of engagement protrusions 24d provided with 4c. The knob 24 is attached to the holding part 22 of the slider 20 by first inserting the rear end of the protrusion 24b into the square hole 22a and abutting the pair of inclined surfaces 24c against the chamfered ends of the square hole 22a. let Next, when the knob 24 is pushed further backward, the hole end of the square hole 22a relatively rides up on the inclined surface 24c and further rides on the upper surface of the convex part 24d. During this time, the holding part half 22d is elastically displaced upward and downward by its own elasticity, but then the knob 2
4 moves rearward and the convex portions 24d respectively engage the engagement holes 22.
When the knob 24 falls into engagement with the slider 20, the knob 24 returns to its elastic displacement, and the knob 24 is attached and locked to the holding portion 22 of the slider 20. According to the mounting configuration of the knob 24 and the slider 20, since the elastic displacement portion is provided on the slider 20 side, the knob 24 itself can be made smaller, and the installation space for the panel 25, etc., which will be described later, can be reduced and the installation work can be simplified. It can be done easily.

The slider 20 with the knob 24 is shown in FIG.
As shown in FIG.
Normally, both front sides of the slider 20 are in contact with the back surfaces of the contact plates 14a and 14b of the case 12 due to the urging of the coil 21, and the holding part 22 and the The knob 24 projects toward the front of the case 12. At this time, lock pin 17
corresponds to the rear end of the heart-shaped cam portion 20a, and each sliding contact 23 makes common contact with the two front terminal plates 19 to close the space between them. Actually, slider 2
0 is assembled before mounting the board 18, and the knob 24 may be assembled to the slider 20 assembled into the case 12. In this way, push switch 11 is completed.

Next, the structure for attaching the push switch 11 to the panel 25 in FIG. 2 will be explained. Panel 25
has a mounting hole 26, and the mounting hole 26 includes, in order from above, an opening 26b having a side cut-and-raised portion 26a, a narrow hole 26c, a medium width hole 26d, and both side recesses 26e.
A wide hole portion 26f having a width is provided. Therefore, as shown by the two-dot chain line in FIG. 5, the engaging portion 13b on the front surface of the case 12 of the push switch 11 is inserted into the opening 26b of the mounting hole 26, and the engaging portions 14d on both sides are fitted into the wide hole 26f. The abutting plates 14a and 14b are brought into contact with the back surface of the hole edge of the middle width hole 26d by being inserted and projected. Next, in this state, switch 1
1 is slid downward parallel to the surface of the panel 25 to the position shown by the solid line in the figure, the narrow width portion 13a of the engagement portion 13b is fitted into the narrow width hole portion 26c, and both side engagement portions 14d The recesses 14c engage with the recesses 26e on both sides of the wide hole 26f, respectively. At this time, the upper surface of the engaging part 13b is located at the same level as or slightly below the lower edge of the opening part 26b, and then the raised part 26a
is bent from the two-dot chain line position to the solid line position in FIG. 5, and is brought into contact with the upper plate portion 13 of the case 12 to prevent upward displacement of the case 12. The slide is positioned in the left-right direction by engaging the both-side engaging portions 14d with the wide hole portion 26f, and the contact plate portions 14a, 14b and the medium width hole portion 26f.
Since positioning in the front-rear direction is performed by contact with the back surface of the hole edge of d, positioning is performed uniquely. Therefore, the recess 14c and the recesses 26e on both sides are engaged by simply inserting the switch 11 into the mounting hole 26 of the panel 22 and sliding it downward, without requiring any particular positioning work during installation.
This makes it possible to extremely easily attach the switch 11 to the panel 25.

Therefore, the switch 11 includes the engaging portion 13b, the narrow width portion 26c, the engaging portions 14d on both sides, and the recessed portions 26 on both sides.
It is mainly locked in the front-rear direction and left-right direction by each engagement e, and it is locked mainly in the vertical direction due to the contact between the upper plate 13 and the cut-and-raised portion 26a, and is firmly attached and fixed to the panel 25. If you want to remove the switch 11, bend the cut-and-raised part 26a in FIG. good. Therefore, the push switch 11 and the panel 25
can be installed and removed with one touch without the need for any screws or the like.

Next, the operation of the push switch 11 will be explained. When the slider 20 is pushed and slid in the direction of arrow D against the coil spring 21 by operating the middle knob 24 (not shown) in FIG.
7 is a groove on one side of the heart-shaped cam portion 20a (not shown) while being rotated about the hole 16d of the spring plate 16.
When the slider 20 is guided relatively to the right side of the cam portion 20a in the figure and the pushing force of the slider 20 is released, it finally comes into contact with the engaging portion 20d of the cam portion 20a due to the bias of the coil spring 21. engage. As a result, the slider 20 is positioned, and each sliding contact 23 commonly switches into contact with the two rear terminal plates 19 to close the space between them. Subsequently, when the rear pushing force that pushed and slid the slider 20 further in the direction of arrow D is released, the lock pin 17 is released from the engagement with the heart-shaped cam portion 20a and passes through the side groove (not shown) as shown in the figure. At this position, the slider 20 also slides back to the illustrated position due to the biasing force of the coil spring 21, returning to its original contact switching mode.

As described above, according to the structure for mounting the switch to the panel according to the present invention, there is a first engaging portion having a substantially T-shape on one side of the front surface of the switch case, and a second engaging portion having a recess on the other side. a switch comprising an abutment plate integrally formed to protrude and bent inward, and a first locking portion having a narrow width that engages with and locks the first engaging portion. and a second locking portion that engages and locks the second engaging portion, and a predetermined cut-and-raised portion, and the outer peripheral edge abuts the corresponding contact plate portion. It consists of a panel with a mounting hole formed therein, and after the front surface of the case is brought into contact with the panel so that the above-mentioned engaging part protrudes through the mounting hole, the corresponding contact plate part is placed on the panel. While sliding the case in a predetermined direction parallel to the panel surface, each of the engaging parts is engaged with each of the locking parts, and the cut-and-raised part is bent and displaced so that the outer surface of the case Since the case can be attached and fixed to the panel by locking it to the panel, the screws can be removed by simply moving the switch in the longitudinal direction of the case and in the orthogonal direction to the panel, then bending the cut-and-raised part. Since the switch can be installed and removed with a single touch without being used, and the switch is moved while being uniquely positioned in the front-back and left-right directions, the number of parts can be reduced with a simple configuration, and the switch can be installed and removed easily. It has features such as ease of work.

[Brief explanation of the drawing]

Figures 1A and 1B are a longitudinal sectional view and a front view of an embodiment of a push switch to which an embodiment of the switch mounting structure of the present invention is applied, respectively;
The figure is an exploded perspective view of the push switch, FIGS. 3A and 3B are an enlarged plan view and a vertical cross-sectional view showing the assembled state of the lock pin of the push switch and the plate spring for holding the pin, and FIG. 4 is an essential part of the push switch. FIG. 5 is a perspective view showing the push switch assembled to the panel. 11...Push switch, 12...Case,
13a... Narrow part, 13b, 14d, 17a...
Engaging portions, 14a, 14b...Abutting plate portion, 14c,
20b, 26e... recess, 14e, 18a, 24
d...Engaging convex portion, 16...Pin holding plate spring, 1
7... Lock pin, 18... Board, 19... Terminal plate, 20... Slider, 20a... Heart-shaped cam part, 21... Coil spring, 22... Holding part, 22
b...slit, 22c...engaging hole, 22d...
Holding part half, 23...sliding joint, 24...knob,
25... Panel, 26... Mounting hole, 26a... Cut-and-raised portion.

Claims (1)

[Scope of utility model registration request] A contact plate portion integrally formed with a substantially T-shaped first engaging portion on one side of the front surface of the switch case and a second engaging portion having a concave portion on the other side and bent inward. a first locking part that engages with and locks the first engaging part, and a second locking part that engages with and locks the second engaging part. 2
The panel has a locking part and a predetermined raised part, and has a mounting hole whose outer periphery contacts the corresponding contact plate part, and each of the above-mentioned engaging parts connects the front surface of the case to the mounting hole. After bringing the corresponding contact plate into contact with the panel so as to penetrate and protrude from the panel, slide the case in a predetermined direction parallel to the panel surface while sliding the corresponding contact plate on the panel to insert and protrude from each of the above-mentioned engaging portions. of the switch is configured such that the case can be attached and fixed to the panel by engaging with each of the locking portions, and further bending and displacing the cut-and-raised portions to lock them to the outer surface of the case. Mounting structure.