JPH0125363Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a slide switch, and more particularly to a slide switch in which a slider slides within a case body and a case is attached to and held by a frame.

2. Description of the Related Art In general, a slide switch is composed of a case assembled with a case body and a terminal board having a plurality of fixed terminals, a slider having a sliding contact, and a frame body to which the case is attached. To assemble this slide switch, first assemble the case main body and the terminal board, fit the coil spring into the slider and insert it into the case.Hold the slider position manually and then insert the heart-shaped cam. The slider is positioned and maintained by attaching a lock pin or an interlocking cam plate, and then is attached and fixed to a metal frame.

Problems to be Solved by the Invention However, in the conventional slide switch, there was no means to prevent the slider from coming off during assembly, so the above-mentioned manual holding work was troublesome, and if the operating force loosened even a little. There are disadvantages in that the slider tends to fly out due to the force of the coil spring and dissipate, and in particular, when the lock pin or interlocking cam plate is disassembled, the slider tends to fly out if the user forgets to hold it manually.

Furthermore, if an attempt is made to prevent the slider from coming off simply by forming an engaging part on the slider that engages with the case, the slider and case are generally resin molded products, so they may be flexible, and the slider and case may flex. The disadvantage is that the engagement with the case is not reliable and there is still a risk that the slider may pop out due to the biasing force of the coil spring.

The present invention has been made in view of the above points, and an object of the present invention is to provide a slide switch which can temporarily fix a slider to a case during assembly and can reliably prevent the slider from coming off after being attached to a frame. With the goal.

Means for Solving the Problems In order to solve the above problems, the present invention has a slanted convex portion that has a sliding joint, is gradually raised from the front side on one side, and has a stepped stopper portion at the front end. It is constructed by assembling a slider provided with a case body, and a terminal board having a plurality of fixed terminals, and the front plate part is pressed into an inclined convex shape as the slider is inserted into the front plate part. A case that is provided with a window hole that elastically deforms in the plate thickness direction and elastically recovers after fitting to face the stopper part and prevent the slider from coming off; and a concave shape into which the bottom and both sides of the case fit. and a protrusion that is formed on the upper edge of this fitting part and projects above the case when the case is fitted to the fitting part, and this protrusion can be folded. A slide switch is constituted by a frame body which fits and holds the case in the fitting portion by bending.

Embodiment FIGS. 1 and 2 are a partially cutaway side view and an exploded perspective view, respectively, of an embodiment of a slide switch according to the present invention. In the figure, a slide switch 1 has a case 4 formed by attaching a case body 3 to a terminal board 2, and a slider 6 fitted through a coil spring 5. The switch 1 is further attached to a frame 7, and is provided with a leaf spring 8 and a lock pin 9 or an interlocking cam plate 10 as required.

The terminal board 2 is made of resin, and has a guide groove 2a in the central longitudinal direction on the upper surface and a pair of protrusions 2b on both sides thereof.
(However, the protrusions 2b on the right in FIG. 2 are partially blocked by a guide hole 2j, which will be described later), two groups of fixed terminals 11 inserted and fixed on the extension line of each protrusion 2b, respectively; Multiple protrusions 2c on the outside of the fixed terminal
It also has a front end protruding portion 2d on the outside (having an inclined portion 2d-1 on the lower front side as shown in FIG. 1), a stepped portion 2e,
Three engaging protrusions 2f on both sides and rear side, both side plate parts 2
g (having pins 2h and 2i, respectively) and a guide hole 2j in the right side plate portion 2g in FIG. 2m (a front flange portion 2n is formed relatively), and has leg portions 2p and 2q. Fixed terminal 1
1 is inserted from the top side of the terminal board 2, and then deformed and fixed by fitting the base of the protrusion on the bottom side of the terminal board 2. Furthermore, adhesive is poured into the recess 2k to securely fix the fixed terminal 11. It's okay.

The case body 3 is made of transparent resin, and has a rectangular window hole 3a (having a front edge 3a-1) in the ceiling plate part and a front plate part 3b (having a pin hole 3b-1) in the ceiling plate part as shown in FIGS. 2 and 3A to 3C. 1), a U-shaped wall portion 3c around the window hole 3a, a support plate portion 3d (having elongated holes 3e on both sides) on the inside of the wall portion 3c, and engaging convex portions 3f on both inside sides, and a front end on the outside. It has a protruding part 3g (having an inclined part 3g-1 on the front side of the upper part), grooves 3h on both sides (where a front flange part 3i is formed), three engaging holes 3j on both sides and the rear side, and also has a lower surface. It has an inner surface stepped portion 3k and a front recessed portion 3l (having pin holes 3m and 3n).
As shown in FIG. 3B, the lower surface of the front plate portion 3b is sunk downward by a predetermined distance 1 from the rear lower surface of the ceiling plate portion.

The case body 3 has the lower end of the case body side plate in contact with the step part 2e and the case body step part 3k in contact with the upper end of the terminal board body with respect to the upper surface of the terminal board 2, and the recesses 3l are connected to the respective side plate parts. 2g, and pin holes 3m and 3n are connected to the pin parts 2h and 2g, respectively.
i is fitted and positioned and placed. At this time, the peripheral edge of each engagement hole 3j is once elastically deformed outward and then engaged with each engagement protrusion 2f, and both 2 and 3 are locked together, completing the case 4.

According to the structure of the case 4, the terminal board 2 and the case body 3 are simply connected to the engagement protrusion 2f and the engagement hole 3j.
Since this is done only by mechanical locking through the engagement of the Assembling accuracy can be improved without positional deviation.

The slider 6 is made of resin and has a knob portion 6a, a collar portion 6b, a rear surface protruding portion 6c, and a main body portion 6d. Stopper part 6f, recessed part 6
g. It has a heart-shaped cam portion 6h, and has interlocking cam portions 6i, 6j on one side, and has a guide protrusion 6k in the central longitudinal direction on the lower surface, step portions 6l on both sides thereof, and an outer protrusion 6.
m, a recess 6n between the protrusions 6m, and four storage recesses 6.
p, and a sliding joint 12 is accommodated in each recess 6p. As shown in the inverted view of the slider 6 in FIG. 2, the height in the vertical direction decreases in the order of the protrusion 6k, the step 6l, and the protrusion 6m.

The slider 6 has a main body portion 6d fitted with a coil spring 5, and the main body portion 6d is fitted into the case 4. At this time, the guide protrusion 6k is fitted and guided by the guide groove 2a, and the stepped portion 6l is fitted into the case 4. It is pushed in while being in contact with the upper surface of the terminal board 2. However, case 3
Since the front plate part 3b of the slider 6 is sunk downward by a distance l as shown in FIG.
The front plate portion 3b is gradually press-fitted into the lower surface, and the front plate portion 3b is gradually elastically deformed upward to form a rear window hole 3a. At this time, the front plate portion 3b is elastically deformed and returned downward, so even if the slider 6 is urged in the return direction by the coil spring 5, the stopper portion 6f comes into contact with the front edge 3a-1 of the window hole 3a, causing the slider 6 to return. A directional stop, that is, a lock is provided. According to this, since the slider 6 is temporarily assembled to the case 4, there is no need to hold it by manual external force, and there is no fear that the slider 6 will pop out, and subsequent assembly work can be facilitated. When inserting and assembling the slider 6 into the case 4, the front plate portion 3b should be aligned in the thickness direction (upward direction).
Since the slider 6 is elastically deformed, it is easily inserted. However, when a force is applied to pull out the slider 6 in the direction of arrow A, the stopper portion 6f is pressed against the front edge 3a-1 of the window hole 3a by the front plate portion. Since the front plate portions 3b face each other in the longitudinal direction and abut against each other, the front plate portion 3b is not elastically deformed and the slider 6 is prevented from coming off. Moreover, in order to disassemble the slider 6, it is sufficient to disassemble the terminal board 2 and the case body 3.

At the time of attaching the slider 6 to the case 4, the sliding connectors 12 are simultaneously guided and fitted into the respective protrusions 2b, and subsequently fitted into the fixed terminals 11 on the extension thereof. At this time, the lower ends of both outer convex portions 6m of the slider 6 are respectively close to and spaced apart from the protrusions 2c on both sides of the terminal board 2, and come into contact with each other to prevent excessive inclination when the slider 6 is tilted during sliding. In this embodiment, the lower end of the stepped portion 6l is in contact with the upper surface of the terminal board 2, but the lower end of the guide protrusion 6k may be in contact with the bottom surface of the guide groove 2a, or both outer protrusions 6m may be brought into contact with the lower end of the guide protrusion 6k. The lower ends may be brought into contact with the upper surfaces of both side protrusions 2c.

Also, at this time, the front end of the coil spring 5 is connected to the protrusion 6.
c and comes into contact with the rear surface of the flange 6b, and the rear end fits into the outer periphery of the protrusions 2d and 3g on the front surface of the case 4 and comes into contact with the front surface of the flanges 2n and 3i, returning the slider 6. Although it is energized in the direction (arrow A direction),
The slider 6 is stopped at a position where a lock pin 9, which will be assembled as described later, is engaged with the heart-shaped cam portion 6h. When fitting the coil spring 5, for example, if the rear end of the coil spring 5 does not fit well into the outer periphery of the protrusions 2d, 3g and gets caught on the front ends of the protrusions 2d, 3g and remains in contact with the slider 6. When the coil spring 5 is pushed in, the coil spring 5 is interposed between the protrusions 6c-2d and 3g, causing the inconvenience that the pushing stroke cannot be ensured. However, according to this embodiment, the rear end of the coil spring 5 is connected to the protrusions 4d, 3g. 3g inclined part 2d-
1 and 3g-1 so that the slider 6 is properly guided in the outer circumferential direction and fitted, so that the specified amount of pushing stroke of the slider 6 can be ensured without causing the above-mentioned catching and abutment. Incidentally, a similar sloped portion may be provided only on the projecting portion 6c side of the slider 6, or a sloped portion may be provided on either the projecting portion of the case 4 or the slider 6.

The lock pin 9 has a U-shape, and as shown in FIG. 1, one end of the locking pin 9 is inserted into the pin hole 3d-1 of the case body 3, and is pivotally supported within the recess 6g of the slider 6, and the other end of the locking pin 9 is pivoted. 9b is engaged with the heart-shaped cam portion 6h of the slider 6 through the window hole 3a.

The leaf spring 8 is made by folding one leaf spring in half as shown in FIG. 2 and FIGS. 4 A to D to form upper and lower leaf spring parts 8.
a, 8b, and the upper plate spring portion 8
a has engaging convex portions 8c on both sides and guide pieces 8d extending diagonally downward rearward from the respective engaging convex portions 8c, and the lower plate spring portion 8b has bent pieces 8e on both sides, cut and raised diagonally downward in the front. It has a pressing piece 8f. The leaf spring 8 is fitted from the front of the support plate part 3d of the case body 3 in the direction of arrow B so that the upper and lower leaf spring parts 8a and 8b sandwich the support plate part 3d. At this time, the guide pieces 8d on both sides first come into contact with the lower surfaces of the engagement protrusions 3f on both sides and are guided downward, and gradually the engagement protrusions 8 on both sides
Since the engagement protrusion 8c is similarly guided downward and enters the long hole 3e, the peripheral edge of the engaging protrusion 8c is elastically deformed downward. After that, the engagement protrusions 8c become the respective engagement protrusions 3f.
When the engagement protrusions 8c and the engagement protrusions 3f are engaged with each other, the peripheral edge portions are elastically returned and deformed upward. Thus leaf spring 8
is locked so that it cannot be displaced in the withdrawal direction, and as shown in FIG. 1, the pressing piece 8f of the lower leaf spring portion 8b comes into contact with the lock pin 9 in an energizing manner, and presses the other end engaging portion 9b against the heart-shaped cam portion 6h. to engage. In addition, since the plate spring 8 has both bent pieces 8e in contact with both inner sides of the wall portion 3c,
Even during and after the installation, it is stably locked without tilting to the left or right, and the lock pin 9 is stably pressed.
Also, when removing the leaf spring 8, remove the upper leaf spring part 8a.
Pressing and deforming the vicinity of the engaging protrusion 8c downward,
After the engagement protrusion 8c is displaced below the engagement protrusion 3f, the plate spring 8 may be pulled out in the direction of arrow A.

According to this mounting structure of the leaf spring 8, the upper leaf spring portion 8a remains exposed even after the leaf spring 8 is installed, making assembly and disassembly work easy.
Since f and 8c are located above the support plate part 3d and are exposed as well, it is easy to perform the engagement operation and confirm the engagement, and the above-mentioned installation can be done by simply performing the above-mentioned engagement, and can be assembled in one-touch. Decomposition can be performed.

According to the switch 1, since the case body 3 is transparent, the slider 6 can be observed through the case body 3 as shown in FIG.
Since the sliding contact 12 and the fixed terminal 11 can be observed through the slider 6, switching between the sliding contact 12 and the fixed terminal 11 can be directly observed with the naked eye when the slider 6 slides, and switching defects can be immediately discovered, which is extremely convenient. be.

The frame body 7 includes metal plates such as a front plate part 7a, a bottom plate part 7b,
It is bent into a U-shaped cross section with a rear side plate portion 7c, and has fitting portions 7d and 7e at corresponding positions on the front and rear side plate portions 7a and 7c, respectively, and has convex portions 7f at the upper ends of both sides of the fitting portion 7d. .

The switch 1 causes the frame body 7 to fit the grooves 2m and 3h of the case 4 into the fitting portions 7d, and
It is attached by fitting and abutting the fitting part 7e on the fitting part 7e, and then fixed by turning the convex parts 7f on both sides inward. As described above, the terminal board 2 and the case body 3 are temporarily assembled by engaging the engagement protrusion 2f and the engagement hole 3j.
The clearance between the terminal board 2 and the case body 3 is large if the terminal board 2 is only engaged with the engagement hole 3j. However, by fitting the terminal board 2 and the case body 3 into the fitting part 7d of the frame body 7 and caulking the convex part 7f as described above, the clearance between the terminal board 2 and the case body 3 is reduced. It will be completely assembled. Therefore, even if a force is applied to pull out the slider 6 in the direction of arrow A, since the terminal board 2 and the case body 3 are integrally held by the frame 7, the slider 6 will be pulled out due to the clearance between them. There's no getting out.

Next, regarding the operation of the switch 1, as the slider 6 is repeatedly pushed in against the coil spring 5, the lock pin 9 rotates and the heart-shaped cam portion 6h is rotated.
A predetermined contact switching can be performed by alternately engaging the slider 6 at two positions and alternately locking the slider 6 in the push-in position and the return position. That is, when the lock pin 9 and the heart-shaped cam portion 6h are used, the switch 1 can be used independently.

Next, when you want to switch and use a plurality of switches 1 in an interlocking manner, remove the leaf springs 8 and lock pins 9 of the switches 1 and attach them in parallel to the frame 7 in the same way, and use.

The interlocking cam plate 10 includes L-shaped resin cam plates 14 (having a cam portion 14 a and four pin portions 14 b on one side) attached at predetermined pitches to a metal connecting plate 13 (having holes 13 a at equal pitches). The mounting method is to attach each pin portion 14b to the connecting plate 13.
It is heated after being inserted into the hole 13a. This interlocking cam plate 10 is attached to the bottom plate portion 7 of the frame body 7 in advance.
It is disposed upright on the upper surface of b, and is energized in the direction of arrow C by a predetermined energizing means.

Therefore, as described above, a plurality of switches 1 are connected to the frame 7.
When the cam plate 14 of the interlocking cam plate 10 is installed, the cam portion 14a of each cam plate 14 enters the guide hole 2j of the terminal board 2 of each switch 1 and energizes the communication cam portion 6j of the slider 6, for example. When engaged, each slider 6 is locked in the return position. Therefore, when the slider 6 of the negative switch 1 is pushed in in this state, the cam portion 14a relatively moves from the interlocking cam portion 6j to 6i without reciprocating the interlocking cam plate 10 in the direction of the arrow D.
The slider 6 can be locked in the pushed-in position and the contact can be switched.

Next, when the slider 6 of the other switch 1 is pushed in and similarly locked in the pushed position, the interlocking cam plate 1
When the switch 1 slides in the direction of arrow D, the cam parts 14a and 6i of the first switch 1 are disengaged, and the slider 6 slides back in the direction of arrow A by the coil spring 5, and the cam parts 14a and 6j abut and engage. It stops at the position and returns by switching the contact. That is, the first switch 1 automatically returns to its original state in conjunction with the depression of the other switches 1.

Effects of the Invention As described above, according to the slide switch of the present invention, a window hole is provided on one side of the case, and an inclined convex portion on one side of the slider is gradually raised on the front side and has a stepped stopper portion at the front end. When the slider is inserted into the case, the inclined protrusion is brought into the window hole with reciprocating elastic displacement of one side of the case due to the pressure restriction of the inclined protrusion, and the stopper part is inserted into the window hole. Since the slider is configured to restrict displacement in the withdrawal direction in correspondence with the front edge of the window hole, the slider does not displace the stopper portion and the front edge of the window hole even though it is biased in the withdrawal direction by the coil spring when attached to the case. Since the position in the removal direction is regulated by contact with the slider, there is no need to hold the slider with external manual force during assembly, and there is no risk of the slider popping out, making assembly easier and reducing assembly man-hours. I can do it. moreover,
Even if a force is applied to pull the slider out of the case, the stepped stopper part will come into contact with the front edge of the window hole in the longitudinal direction of the front plate, so the stopper part and the front edge of the window hole will not be elastically deformed. This is the same as when rigid bodies come into contact with each other, and the strength of the stopper is extremely high. Therefore, the durability against repeated sliding operations of the slider is increased, the life of the slide switch can be extended, and reliability can be improved.Moreover, the terminal board and the case body can be fitted to the fitting part of the frame. By holding the terminal board and the case body together with no clearance by caulking the protrusion of the frame, the final assembly can be carried out, even if a force trying to pull out the slider is applied. It has features such as being able to reliably prevent the slider from slipping out.

[Brief explanation of the drawing]

1 and 2 are a partially cutaway side view and an exploded perspective view of one embodiment of the slide switch according to the present invention, respectively, and FIGS. 3A to 3C are respectively views of the leaf spring locking of the case body of the slide switch. A plan view, a longitudinal cross-sectional view, and a view taken along line C-C in the same figure, No. 4
Figures A to D are a plan view and a longitudinal cross-sectional view of the leaf spring, respectively.
They are a bottom view and a front view. 1...Slide switch, 2...Terminal board, 2
a... Guide groove, 2d, 3g, 6c... Protruding portion, 2d-1, 3g-1... Inclined portion, 2f, 3
f, 8c...Engaging convex portion, 2j...Guide hole, 3...
...Case body, 3a...Window hole, 3a-1...Window hole front edge, 3c...Wall part, 3d...Support plate part, 3j...
...Engagement hole, 4...Case, 6...Slider, 6b
...Flame part, 6e... Inclined convex part, 6f... Stopper part, 6h... Heart-shaped cam part, 6i, 6j...
Interlocking cam part, 6k... Guide protrusion, 7... Frame, 8... Leaf spring, 8d... Guide piece, 8f...
Pressing piece, 9...Lock pin, 10...Interlocking cam plate, 11...Fixed terminal, 12...Sliding contact, 13...
...Connecting plate, 14...Cam plate, 14a...Cam part.

Claims (1)

[Scope of Claim for Utility Model Registration] A slider having a sliding contact and having an inclined convex portion on one side that gradually becomes higher from the front side and has a step-like stopper portion at the front end, and a case body. , is constructed by assembling a terminal board having a plurality of fixed terminals, and as the slider is inserted into the front plate part, the front plate part is pressed by the inclined convex part and elastically deforms in the thickness direction of the front plate part. a case having a window hole that elastically returns after being fitted and faces the stopper part to prevent the slider from coming off; a concave fitting part into which the bottom and both sides of the case fit; a protrusion formed on the upper edge of the fitting part and protruding onto the case when the case is fitted into the fitting part, and by bending the protrusion. A slide switch comprising a frame body that fits and holds the case in the fitting part.