JP2005166573A - Push type switch - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To further share components, in a push type switch capable of functioning as both a self-lock switch and a momentary switch. <P>SOLUTION: A knob 26 is equipped with pressing arms 28 and 30 for pressing switch bodies 14 and 16, respectively, and slides along a guide as an exposure part 12 is pressed to the immersion side even when either of the switch bodies 14 and 16 is mounted on the side of a base body part; and either of the pressing arms 28 and 30 presses the switch body 14 or 16 corresponding to it. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a push-type switch that can function as a self-locking switch or a momentary switch.

  The self-locking switch is a switch that is turned off in a protruding state before being pressed and turned on when being pressed and locked in a retracted state. The momentary switch is a switch that is turned on (or turned off) in the pressed retracted state, but is energized and returns to the original protruding state when the pressing operation is released. Conventionally, there has been known a push-type switch configured to function as both a self-locking switch and a momentary switch by exchanging an internal switch body. In such a push-type switch, the switch body is pressed through a predetermined component (knob) (for example, Patent Document 1).

Japanese Utility Model Publication No. 2-115225

  However, in the above-mentioned conventional push type switch, the knob dedicated to the self-locking switch and the knob dedicated to the momentary switch are separate parts, and a corresponding knob must be prepared according to the internal switch body. did not become. That is, in the conventional push-type switch, although the base portion for mounting the switch body and guiding the knob can be shared, the labor and cost of manufacturing have increased because the knob is a separate part. And since both of these knobs can be mounted on the same base portion, there is a risk that a knob that does not fit the switch body may be mistakenly assembled.

  The push-type switch according to the present invention includes a knob having an exposed portion that is exposed to the outer surface from a through hole provided in an outer panel, and a guide that allows the knob to be moved forward and backward so that the exposed portion can protrude and retract in the through hole. And a base part having a guide part, wherein the knob has both a first pressing part for pressing the self-locking switch body and a second pressing part for pressing the momentary switch body. When the self-lock switch body or the momentary switch body is mounted on the base portion, the first or second pressing portion slides along the guide as the exposed portion is pressed. One of them presses the corresponding switch body.

  In the push-type switch according to the present invention, the knob includes a slider that is guided so as to freely advance and retreat by the guide portion, and the slider is between the first pressing portion and the second pressing portion. It is preferable to be arranged in

  Further, in the push-type switch according to the present invention, in the state before the knob presses the self-lock switch body by the first pressing portion, the movement in the direction along the guide is performed on the base portion or the outer panel. In a state where the knob is positioned at the first position without being regulated by the second pressure portion and before the momentary pressure main body is pressed by the second pressing portion, the momentary switch main body is urged from the momentary switch main body. When the momentary switch body is mounted so as to be positioned at the first position in a state of being urged from the switch body and pressed against the base body or the outer panel, the knob and / or the base body or the outer panel is attached to the knob and / or the base body or the outer panel. Preferably, a locking member is provided.

  In the push-type switch according to the present invention, it is preferable that the locking member is a spacer attached to the base portion or the outer panel.

  Preferred embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a view (perspective view) showing an example of the exposed portion 12 of the push switch 10 according to the present embodiment as viewed from the outside of the outer panel 18, and FIGS. 2 and 3 are main components of the push switch 10. FIG. 2 is a side view (partially sectional view) showing an example of FIG. 2. FIG. 2 is a view when the self-lock switch body 14 is mounted, and FIG. 3 is a view when the momentary switch body 16 is mounted.

  As shown in FIG. 1, the push-type switch 10 is mounted on the back side of the outer panel 18 so that the exposed portion 12 is exposed from a through hole 20 provided in the outer panel 18. The exposed portion 12 can be moved in and out in the through hole 20 by being pushed into the immersive side by the operator and urged toward the protruding side by the push switch 10. FIG. 1 shows an example in which three push-type switches 10 are arranged in a line. In such a case, these push-type switches 10 are aesthetically pleasing in the exposed portion 12. It is desirable that the protruding lengths from the outer panel 18 be approximately the same. However, the protrusion length may be adjusted by adjusting the internal dimensions, and the protrusion length may be gradually increased or shortened along the column or row of the push switch 10.

  In the example of FIGS. 2 and 3, the push switch 10 includes a substrate 22, a holder 24, and a knob 26. Of these, the substrate 22 and the holder 24 correspond to the base portion. As shown in FIGS. 2 and 3, either the self-lock switch body 14 or the momentary switch body 16 is mounted on the surface of the substrate 22 in the region inside the holder 24, and each is formed on the knob 26. It is pressed by the corresponding pressing arms 28 and 30. In other words, the push switch 10 can function as both a self-lock switch and a momentary switch by the one switch body 14, 16 attached. Here, it is physically possible to simultaneously mount both the self-lock switch main body 14 and the momentary switch main body 16, but this increases the manufacturing cost and causes operational confusion. Not performed. In this example, the self-lock switch body 14 is mounted on the upper side of the figure and the momentary switch body 16 is mounted on the lower side of the figure, but the present invention is not limited to such an arrangement.

  The knob 26 has a base flange 32, an exposed portion 12, a slider 34, and pressing arms 28 and 30.

  On the outer panel 18 side (surface side) of the base flange 32, a round columnar exposed portion 12 is formed. As described above, the exposed portion 12 is exposed from the through hole 20 formed in the outer panel 18.

  Further, two bar-shaped pressing arms 28 and 30 extending in the immersion direction are formed on the base 22 side (back side) of the base flange 32 so as to be substantially parallel to each other. 2 and 3, when the exposed portion 12 is pushed from the right side (exposed side) toward the left side (immersive side), the pressing arms 28 and 30 move to the immersive side and press the switch bodies 14 and 16. The pressing arm 28 presses the self-lock switch body 14, and the pressing arm 30 presses the momentary switch body 16. The arrangement and shape of the pressing arms 28 and 30 are determined in accordance with the specifications (size, stroke, arrangement, internal mechanism, etc.) of the corresponding switch bodies 14 and 16.

  The slider 34 is guided by a groove-shaped guide rail 36 as a guide portion provided in the holder 24, so that the knob 26 can be moved back and forth in the guide direction. As a result, the exposed portion 12 is formed in the through hole 20. It will be free to appear and disappear. In this example, the guide rail 36 has a concave cross section, and the slider 34 fitted to the guide rail 36 has a convex cross section. However, this is merely an example, and the forward and backward movement of the knob 26 has such a shape. It can be easily understood that this can be realized by other guide portions and sliders.

  In this example, the slider 34 is located between the two pressing arms 28 and 30. When the distance between the pressing arms 28 and 30 that press the switch bodies 14 and 16 and the slider 34 is long, the resistance force when the slider 34 moves (inclination between the slider 34 and the guide rail 36) as compared with the case where the distance is short. Resistance) associated with the increase. In this example, the distance between the pressing arm 28, 30 and the slider 34 is relatively short regardless of which pressing arm 28, 30 functions. Therefore, the resistance force accompanying the movement of the slider 34, that is, the knob 26 is compared. Thus, it is possible to obtain an effect that durability is improved such that the pressing operation force of the exposed portion 12 is reduced and wear of the sliding portion is reduced. For example, the inner surface of the side wall of the holder 24 is used as a guide portion, and the slider is formed into a plurality of plates or cylinders according to the guide portion, and the two pressing arms 28 and 30 are accommodated inside the slider. The same effect can be obtained. However, the configuration illustrated in FIGS. 2 and 3 can further reduce the size of the knob 26 and thus the push switch 10 as a whole.

  Now, since the self-lock switch is positioned at two positions, the projecting side and the immersive side, there is a possibility of malfunction if a pressing force is applied at each position. Therefore, as shown in FIG. 2, when the self-lock switch main body 14 is mounted, the knob 26 is engaged with the base portion side and pushed into the immersive side in a state before pushing (that is, the position on the protruding side). The dimension of each part is determined so that there is no. In the example of FIG. 2, the dimensions of each part are determined so that a predetermined distance δ1 is provided between the surface of the base flange 32 and the end surface of the cylindrical contact part 18e of the outer panel 18 at the protruding side position. Yes. The pressing arm 28 is fixed to a movable portion (not shown) of the self-lock switch body 14 and does not move further from the protruding side position to the protruding side.

  On the other hand, since the momentary switch only needs to be positioned on the immersive side, the momentary switch may be pushed slightly into the immersive side when the knob 26 is on the protruding side. Rather, in order to stabilize the posture, the knob 26 is urged in the protruding direction from the momentary switch body 16 at the protruding side position, and the base portion side (in the example of FIG. 3, the cylindrical abutting portion of the outer panel 18). 18e) or the outer panel 18 side.

  For this reason, the protrusion length of the exposed portion 12 from the outer panel 18 is greater in the case of FIG. 3 (that is, when it functions as a momentary switch) than in the case of FIG. 2 (that is, when it functions as a self-lock switch). It becomes longer by the interval δ1. As described above, this is due to the difference in whether or not the knob 26 and the base portion side are brought into contact with each other at the protruding side position.

  Here, when a plurality of push-type switches 10 are arranged as shown in FIG. 1, if a switch functioning as a self-lock switch and a switch functioning as a momentary switch are arranged adjacent to each other, Since the protrusion length of the exposed portion 12 is different, a step is generated on the upper surface of the exposed portion 12, which is unfavorable in terms of beauty.

  Therefore, the position of the knob 26 on the protruding side when the knob 26 and / or the base member (holder 24) or the locking member provided on the outer panel 18 functions as a momentary switch (that is, when the momentary switch main body 16 is mounted). It is preferable that the position is on the immersive side than in the case of FIG. 3 and is substantially the same as the position on the protruding side in FIG. 2 (this corresponds to the first position in the present invention).

  FIG. 4 is a side view (partially sectional view) showing an example of the push-type switch 10 (provided that it functions as a momentary switch) provided with a spacer 38 as the locking member. The spacer 38 has a bottomed cylindrical shape, and has a through hole 38a that penetrates the exposed portion 12 in the bottom plate. The spacer 38 is fitted into the cylindrical contact portion 18e of the outer panel 18 so that the thickness of the bottom plate can be increased. Accordingly, the protruding side position of the knob 26 moves to the immersive side. For this reason, if the thickness of the bottom plate is set to the interval δ1, the position on the protruding side of the knob 26 is substantially the same in the case of functioning as a self-lock switch and in the case of functioning as a momentary switch. In the case where the push type switch 10 is arranged in proximity, even if a self-lock switch and a momentary switch are mixed, the protruding length of the exposed portion 12 becomes substantially equal, and the aesthetic appearance is improved. The spacer 38 is preferably used only when it functions as a momentary switch, but instead, a thin spacer is used when functioning as a self-lock switch, and when it functions as a momentary switch. Even if a thick spacer is used, the same effect can be obtained. The spacer 38 is merely an example, and may have other shapes, or may be attached to other parts such as the holder 24 and the knob 26.

  FIG. 5 is a side view (partially sectional view) showing an example of the push-type switch 10a according to another embodiment of the present invention. In this example, when functioning as a momentary switch, the knob 26 located at the protruding side does not contact the outer panel 18 but contacts the locking member 40 a of the holder 40. In this case, the same effect as that shown in FIGS. 2 and 3 can be obtained.

It is an external view (perspective view) which shows an example of the push-type switch concerning embodiment of this invention. FIG. 4 is a side view (partially sectional view) showing an example of the configuration of a main part of the push switch according to the embodiment of the present invention, and is a view when a self-lock switch body is mounted. It is a side view (partial sectional view) showing an example of a main part configuration of a push-type switch according to an embodiment of the present invention, and is a view when a momentary switch body is mounted. It is a side view (partial sectional view) showing an example of a main part configuration of a push switch according to an embodiment of the present invention in which a spacer is provided as a locking member, and is a view when a momentary switch body is mounted. It is a side view (partial sectional view) showing an example of a main part configuration of a push switch according to another embodiment of the present invention, and is a view when a momentary switch body is mounted.

Explanation of symbols

  10, 10a Push type switch, 12 Exposed part, 14 Self-locking switch body, 16 Momentary switch body, 18 External panel, 18e Cylindrical contact part, 20 Through hole, 22 Substrate, 24 Holder, 26 Knob, 28 (First A) pressing arm, 30 (second) pressing arm, 32 base flange, 34 slider, 36 guide rail, 38 spacer, 38a through hole, 40 holder, 40a locking member.

Claims (4)

A knob having an exposed portion exposed to the outer surface from a through hole provided in the outer panel;
A base portion having a guide portion that guides the knob so that the exposed portion can protrude and retract in the through hole;
In a push-type switch comprising
The knob includes both a first pressing portion that presses the self-lock switch body and a second pressing portion that presses the momentary switch body, and the base portion side includes a self-lock switch body and a momentary switch body. Regardless of which is attached, the exposed portion slides along the guide as it is pressed,
Either one of the first or second pressing portions presses the switch body corresponding to the first or second pressing portion. The knob includes a slider that is guided by the guide portion so as to freely advance and retract.
The push switch according to claim 1, wherein the slider is disposed between the first pressing portion and the second pressing portion. In a state before the knob presses the self-lock switch body by the first pressing portion, the movement in the direction along the guide is not restricted by the base portion or the outer panel, and is positioned at the first position. And
And, in a state before the knob presses the momentary switch body by the second pressing portion, the first biasing force is applied from the momentary switch body and pressed against the base portion or the outer panel. To be in position
The push-type switch according to claim 1 or 2, wherein when the momentary switch body is mounted, a locking member is provided on the knob and / or the base portion or the outer surface panel.   4. The push switch according to claim 3, wherein the locking member is a spacer attached to the base portion or the outer panel.

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