JP2008269828A - Multiple-type composite switch and manufacturing method thereof - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a multiple composite switch which is used for use of a switch or the like to adjust a posture of a seat for a high class of a passenger airplane, and in which a plurality pieces of operation buttons can be aligned, arranged, and installed surely. <P>SOLUTION: By making the multiple composite switch in which seesaw buttons 4A, 4B rotatably fitted to and retained at a circular shaft 11 retained between opposing wall faces 6A, 6B of the upper case 6 and energized to a normal position by a torsional coil spring 21, and push buttons 5A, 5B which are energized by a compression coil spring 29 so that a hemicircular part of a guide hole 28 of the lower part is engaged with the circular shaft 11 and so that the normal position is determined actuate a left first press switch 9A and a second press switch 10 on a wiring board 8 via respective left first press bar 12A and second press bar 14, the multiple composite switch 1 is obtained in which the plurality pieces of operation buttons are aligned. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a switch for adjusting a seating posture in a high-class seat of a passenger aircraft or the like, and a multiple composite switch used for other applications and a method for manufacturing the same.

  In recent years, seating postures have been adjusted by changing the angle of a high-class seat such as a passenger plane or a passenger ship, the back of a massage chair, a footrest, or the like.

  These adjustments can be performed by increasing or decreasing the angle of the seat back or footrest depending on the position pressed by the same operation button, or by pressing a specific operation button as a standard chair posture. Or a flat bed.

  In the former adjustment, a seesaw switch that can switch an electric signal depending on the position pressed by one operation button is used, and in the latter adjustment, a push switch that is turned ON when pressed is often used.

  In addition, since it is more convenient for the user to collect the various posture adjustment switches for such a seat in one place, the adjustment seesaw switch and the push switch are often arranged in a row, At this time, an operation button for displaying the adjustment contents on the surface is attached.

Conventionally, such objects have been dealt with by arranging a plurality of single seesaw switches and push switches as described in Patent Document 1 and Patent Document 2 side by side on a wiring board.
JP-A-6-73840 JP-A-10-92260

  However, when multiple switches are mounted on a wiring board and mounted by soldering etc., it is difficult to arrange them neatly, and it is difficult to arrange them side by side. Since the operation buttons displaying the contents are not uniform, it is necessary to check and rework after mounting a single switch on the wiring board, and it takes time to install the switch.

  In addition, the operation button mounting method is different between the seesaw switch and the push switch, which makes it difficult to align the operation buttons.

  The present invention has been made to solve such a problem, and a plurality of seesaw switch operation buttons and push switch operation buttons can be arranged in a reliable manner. It is an object of the present invention to provide a multiple composite switch in which the operation buttons are in a stable arrangement state in both a top view and a side view in a normal state and have a smooth feel during operation.

  In order to solve the above-mentioned problems, a multiple seesaw switch of the present invention includes a rectangular parallelepiped case having an opening on the lower surface, and both end portions parallel to the opening end surface on a substantially center line in the longitudinal direction of the case when viewed from above. A circular shaft made of a rigid material held in the case by the wall surface, a wiring board arranged so as to close the opening of the case, and a plurality of press switches arranged and mounted on the upper surface, and a plurality of presses At a position corresponding to each switch, a plurality of first pressing bars and at least one second pressing bar held by a cylindrical part on the lower surface of the ceiling surface of the case, and an upper portion on the ceiling surface of the case A circular hole at the tip of the two legs that protrudes downward through the ceiling surface of the case so as to be exposed to form the left and right operation surfaces, and so that the outer distance between both legs is 1/2 or more of the width of the operation surface Is fitted and held so that it can be rotated by a circular shaft. And a seesaw button in which a press switch is arranged on the wiring board below the first pressing rods that are in contact with the lower surfaces of the left and right operation surfaces that are symmetrical with respect to the circular axis when viewed from above. A coil portion is disposed around the end of the case, and the hook portions at both ends are elastically contacted with a constant urging force at the end surfaces of the square holes provided symmetrically with the axis of the circular axis on the ceiling surface of the case. A torsion coil spring in which the extended tip of the hook part is elastically contacted with a pair of locking parts provided at the lower part of the operation surface of each seesaw button, and the upper part is exposed on the ceiling surface of the case and near one end part Is formed on the case so that the other end can be rotated without moving up and down by the rotation support part in which the width of the support part is 1/2 or more of the width of the push operation surface. Thickness protruding downward through a long hole in the ceiling surface of the case Is a semicircle with a lower part engaged with the outer diameter of the circular shaft that is thinner than the diameter of the circular shaft. A push switch is arranged on the wiring board at a position below the second pressing rod that is elastically in contact with the lower surface of the push operation surface while the circular shaft passes through the guide hole that restricts the rotation about the support portion. It is wound around the outer periphery of the push button and the second pressing rod, and the lower surface of the operation surface of each push button is pushed upward via the second pressing rod so that the semicircular portion below the guide hole engages with the circular shaft. The at least one seesaw button and the at least one push button are arranged in a predetermined order.

  With such a configuration, the seesaw button is fitted and held on one circular shaft made of a rigid material, and in a normal state, it is positioned by a torsion coil spring that is elastically in contact with the end face of a square hole provided in the case. The push button is also pushed by the compression coil spring and the semicircular part below the guide hole engages with the same circular shaft. Therefore, the seesaw buttons and push buttons arranged side by side are both in top view and side view. In a further operation, the seesaw button rotates smoothly about the circular axis and pushes down the first pressing bar vertically, and the push button moves with the rotation support portion as a fulcrum. 2 Push down the push bar vertically and push each push switch straight to cause switch operation, and then return to the original position by the spring force. It is possible to realize a mold seesaw switch.

  Further, in the above-described configuration, the rotation support portion of the push button is arranged so that the lateral protrusions of the L-shaped protrusions protruding from both the upper surface of the case ceiling and the lower surface of the other end of the push button have one engagement gap. By making the thickness of the other lateral projection equal, the vertical gap is set to zero, and the engagement length of both is such that the circular axis is transverse to the guide hole of the push button leg. You may make it larger than the quantity which can move to a direction.

  By adopting such a configuration, the rotation support portion of the push button can be easily assembled with a simple structure, and it is difficult to cause troubles such as rattling and disengagement in the normal state and operation, and is somewhat horizontal. It can be movable.

  In the above configuration, the lateral protrusions of the L-shaped protrusions protruding from both the upper surface of the ceiling surface of the case and the lower surface of the other end of the push button are both equal in thickness to the engagement length and the outer side of the tip is engaged. You may make it be circular arc shape which makes a total dimension a radius.

  By setting it as such a structure, the rotation support part of a favorable characteristic can be formed most compactly.

  In the above configuration, the first pressing rod or the second pressing rod is disposed between the first pressing rod and the upper end surface of the cylindrical portion that holds the first pressing rod, or between the seesaw button or the push button and the upper surface of the case ceiling surface. You may make it provide the stopper part which controls the motion of a press direction.

  By adopting such a configuration, it is possible to restrict the amount of stroke by which the pressing portion of each pressing switch is pressed through each pressing rod, and prevent the pressing switch from being unnecessarily pressed and damaging the pressing switch. .

  Further, in the above configuration, a pressing force is applied to one of the left and right operation surfaces of the seesaw button, the seesaw button rotates and tilts, and the first pressing rod that contacts the lower surface of the operation surface is pressed down to press downward When the switch is operated, the lower surface of the operation surface of the seesaw button is in the normal state so that the lower surface of the operation surface with which the upper end of the first pressing rod abuts is substantially perpendicular to the axial direction of the pressing rod. In addition to being inclined with respect to the axial direction, the upper end of the pressing rod may be spherical.

  With such a configuration, since the pressing force at the time when the first pressing rod starts to descend when the seesaw button is pressed and the pressing portion of the pressing switch starts to move can be small, the first pressing rod can be moved from the inclined lower surface of the operation surface. The force applied to is divided into a component force that pushes downward and a force force that pushes in the lateral direction, and even if the force to push down decreases, it slips on the upper end of the spherical shape of the first pressing rod and releases the component force in the lateral direction, The first pressing rod is easily pushed down.

  At the time of the switch operation when it is necessary to apply the greatest pressing force to the push switch, the lower surface of the operation surface pushes the push rod vertically, so there is no lateral force and the switch operation can be performed reliably.

  In the above configuration, the coil portion of the torsion coil spring may be disposed on the inner periphery or the outer periphery of the cylindrical rib provided around the circular hole at the tip of one leg portion of the seesaw button. Good.

  With such a configuration, when the seesaw button is assembled in the upper case in the manufacturing process of the multiple composite switch of the present invention, the position of the coil portion of the torsion coil spring, that is, the position of the entire torsion coil spring, with this rib The tip of the hook part at both ends of the torsion coil spring can be elastically contacted and supported by a pair of protrusions at the lower part of the operation surface of the seesaw button with a constant force. It can be easily assembled into the case in a pre-integrated state.

  Further, in the above configuration, one wall surface of both ends in the longitudinal direction of the case holding the circular shaft is provided with a hole that is slightly smaller than the constant outer diameter of the circular shaft and is closed on the outside. The wall has a through hole slightly larger than the constant outer diameter of the circular shaft, one end of the circular shaft with a constant outer diameter is chamfered or processed into a spherical surface, and the other end is provided with a through hole. You may make it have the part of an outer diameter slightly larger than the diameter of a through-hole in the range of the thickness of a wall surface.

  With such a configuration, when the circular shaft is held on the wall surfaces at both ends in the longitudinal direction of the case in the manufacturing process of the multiple composite switch of the present invention, one end processed into a chamfered or spherical surface of the circular shaft. Can be easily inserted from a large through-hole on one wall surface, and when this one end reaches the other wall surface, it can be press-fitted into a clogged hole with a chamfer or spherical surface as a guide, and At the same time, the circular shaft is easily held on the wall surfaces at both ends in the longitudinal direction of the upper case by press-fitting the large outer diameter portion of the other end portion of the circular shaft into the large through hole of one wall surface. be able to.

  In addition, the method for manufacturing the multiple composite switch of the present invention includes fitting the coil portion of the torsion coil spring around the cylindrical rib around the circular hole provided on one leg portion of the seesaw button, and While narrowing the tip interval between the hook portions at both ends, the step is inserted between a pair of locking portions at the lower part of the operation surface of the seesaw button to be elastically contacted and held to form a spring-loaded seesaw button; Inserting a plurality of first pressing rods and a predetermined number of compression coil springs and second pressing rods into the cylindrical portion from above, and two seesaw buttons with springs in square holes on the ceiling surface of the case A step of inserting and temporarily holding the leg portion, a step of inserting the leg portion of the push button into the elongated hole in the ceiling surface of the case and engaging the rotation support portion to temporarily hold the case, and a case and a spring Hold jig with the position of seesaw button and push button Therefore, while keeping the circular shaft, insert the circular shaft from the spherical side of one end into the through hole of the case wall, pass through the circular hole and the guide hole at the tip of each leg part of the spring-loaded seesaw button and push button, and finally the spherical part A process of press-fitting into a hole in which the wall surface of the case is blocked, and press-fitting a large-diameter portion at the other end of the circular shaft into a through-hole in the wall surface may be provided as a work in process.

  According to such a manufacturing method, the seesaw button and the push button are urged to the normal state position by the torsion coil spring and the compression coil spring through the circular shaft through the circular hole and the guide hole of each leg part. It is possible to realize a manufacturing method of a multiple composite switch that can efficiently and stably manufacture a work in process held in a case in a state.

  In the multiple composite switch of the present invention, the seesaw button is fitted and held on one circular shaft, and in a normal state, the seesaw button is positioned by a torsion coil spring that elastically contacts an end face of a square hole provided in the case, and is pushed. The buttons are also pressed by a compression coil spring so that the semicircular part below the guide hole engages the same circular shaft, so the aligned seesaw buttons and push buttons are aligned in both top and side views. State.

  Further, during the operation, the seesaw button smoothly rotates around the circular axis to push down the first pressing rod on the lower surface, and the push button moves about the rotation support portion to push down the second pressing rod on the lower surface, The push switch is pushed straight to cause the switch operation, and then returns to the original position by the spring force.

  As a result, it is possible to neatly arrange a plurality of operation buttons displaying the operation contents in the device used, and to achieve a great effect of realizing a multiple composite switch with smooth and reliable switching operation during operation.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment)
1 is a front sectional view of a quadruple composite switch according to an embodiment of the present invention, FIG. 2 is a sectional view taken along the line DD in FIG. 1, and FIG. 3 is a sectional view taken along the line EE in FIG. 4 is a cross-sectional view taken along line FF in FIG. 1, and FIG. 5 is an external perspective view.

  The quadruple-type composite switch 1 according to the present embodiment is for adjusting the posture of a high-class seat of a passenger aircraft. As shown in FIG. 5, a seesaw switch 2A that adjusts the angle of the “backrest” of the seat. And a seesaw switch 2B that adjusts the angle of the “foot rest” of the seat, a push switch 3A that makes a “standard chair” state, and a push switch 3B that makes a “flat bed” state.

  As shown in FIGS. 1 to 4, the casing of the quadruple composite switch 1 according to the present embodiment has heat resistance and mechanical strength such as polyetherimide (PEI) and polybutylene terephthalate (PBT). The rectangular parallelepiped upper case 6 is formed of a resin having excellent electrical characteristics, and the lower surface is an opening. The upper case 6 is formed of the same resin as the upper case 6 and has the same projected dimensions, and the upper surface is an opening. It is composed of a lower case 7 coupled to an upper case 6 with a wiring board 8 made of glass / epoxy resin sandwiched between peripheral walls.

  On the upper surface of the wiring board 8, two pairs of left first pressing switches 9A (in the following description, left pressing switches 9A) and right first pressing switches 9B are used as pairs for the seesaw switches 2A and 2B. (In the following description, two sets of four push switches, which are represented as right push switches 9B), are disposed on both sides under the respective seesaw buttons 4A and 4B with the longitudinal center line of the wiring board 8 interposed therebetween. In addition, two second pressing switches 10 for the push switches 3A and 3B are disposed near the side end portions of the wiring board 8 below the push buttons 5A and 5B.

  The left push switch 9A, the right push switch 9B, and the second push switch 10 are turned on when a pressing force is applied to the respective pressing portions, and when the pressing force is removed, the pressing portions self-reset to their original positions. This type of switch is turned off.

  The two seesaw buttons 4A and 4B and the two push buttons 5A and 5B are formed of ABS resin or the like, and the contents that can be adjusted at the time of operation are displayed on the operation surface (see FIG. 5). .

  Further, above the center line in the longitudinal direction of the wiring board 8, a circular shaft 11 made of a rigid material such as stainless steel or high-strength aluminum is connected to the wiring board 8 by the wall surfaces 6 A and 6 B at both longitudinal ends of the upper case 6. They are held in parallel.

  The left first pressing bar 12A (referred to as the left pressing bar 12A in the following description) and the right are in contact with the respective pressing portions of the two sets of the left pressing switch 9A and the right pressing switch 9B for the seesaw switches 2A and 2B. Two sets of first pressing rods 12B (in the following description, represented as right pressing rods 12B) are held by holding holes of two sets of cylindrical portions 13A and 13B provided at corresponding positions on the ceiling surface of the upper case 6. Two second pressing rods 14 that are held so as to be movable up and down (see FIG. 2) and abut against the respective pressing portions of the two second pressing switches 10 for the push switches 3A and 3B are cylindrical on the ceiling surface. It is hold | maintained so that it can move up and down by the stepped holding hole 15A of the part 15 (refer FIG. 4).

  As described above, two seesaw buttons 4A and 4B having the same shape and size corresponding to each of the two sets of the left push switch 9A and the right push switch 9B are disposed on the ceiling surface of the upper case 6. The circular holes 18A and 18B at the tips of the main leg portion 17A and the auxiliary leg portion 17B extending downward through the two large-angle holes 16A and the small-angle holes 16B on the ceiling surface of the The left operation surface 19A serving as a tilting operation portion in which the vicinity of both ends of the upper surface exposed on the ceiling surface of the upper case 6 is tilted in the opposite direction while being fitted and held so as to be independently rotatable. A right operation surface 19B is formed, and a lower surface thereof is in contact with two sets of the left pressing rod 12A and the spherical portion at the upper end of the right pressing rod 12B (see FIG. 2).

  The outer distance between the main leg portion 17A and the auxiliary leg portion 17B extending downward from the two seesaw buttons 4A and 4B is ½ of the width dimension of the operation surface including the left operation surface 19A and the right operation surface 19B. It is set widely as above.

  Further, a torsion coil spring 21 is provided on each side surface of the main leg portion 17A of the two seesaw buttons 4A and 4B, and the coil portion 21A is a cylindrical rib 20 provided around each circular hole 18A. The left hook part 22A and the right hook part 22B at both ends are arranged on the end surface of the large-angle hole 16A provided symmetrically on the ceiling surface of the upper case 6 with the axis of the circular shaft 11 in between. Simultaneously with elastic contact with a constant urging force, the extended tip portions of both hook portions 22A, 22B are a pair of left provided on the left operation surface 19A and the right operation surface 19B of the two seesaw buttons 4A, 4B. Each of the engaging portions 23A and the right engaging portion 23B is elastically contacted.

  Thus, the left hook portion 22A and the right hook portion 22B of the torsion coil spring 21 are engaged with the end surface of the large-angle hole 16A in the ceiling portion of the upper case 6 and the left engagement portion 23A below the seesaw buttons 4A and 4B. The two seesaw buttons 4A and 4B are kept in the neutral horizontal position in the normal state by being in elastic contact with the portion 23B simultaneously (see FIG. 3).

  On the other hand, two push buttons 5A and 5B having the same shape and size are arranged at positions corresponding to the two second press switches 10 on the ceiling surface of the upper case 6, and on the ceiling surface of the upper case 6. The vicinity of one end of the exposed upper surface forms a push operation surface 24, and the other end is formed between the upper surface of the ceiling of the upper case 6 and the lower surfaces of the other ends of the push buttons 5A and 5B. Is supported by the upper case 6 so that it can be rotated without vertical movement.

  And it is a dimension thinner than the diameter of the circular axis | shaft 11 extended below through the long hole 26 provided in the same line as the stepped holding hole 15A of the cylindrical part 15 of the ceiling surface of the upper case 6. The circular shaft 11 passes through the oval guide hole 28 at the tip of a certain leg portion 27, and the lower surface of the push operation surface 24 has an upper end of the second pressing rod 14 urged upward by a compression coil spring 29. The spherical shape portion is elastically pressed to push up the two push buttons 5A and 5B upward.

  As a result, the semicircular part below the guide hole 28 at the tip of the leg part 27 of the two push buttons 5A, 5B is engaged with the circular shaft 11, and the two push buttons 5A, 5B are rotated in a wide width in the normal state. A neutral horizontal position is maintained as indicated by the moving support portion 25 and the thin guide hole 28 (see FIG. 4).

  Here, the configuration of the rotation support portion 25 that supports the other end portions of the two push buttons 5A and 5B on the upper case 6 so as to be rotatable without vertical movement will be described.

  As shown in the enlarged sectional view of the rotation support portion of the push button of the quadruple composite switch according to the embodiment of the present invention shown in FIGS. 4 and 6A, the rotation support portion 25 is formed of the upper case 6. Provided using the side wall below the thickness dimension of the right protrusion 30A of the L-shaped protrusion 30 from the ceiling surface and the height dimension of the engagement gap and the other end of the push buttons 5A, 5B. The left protrusion 31A of the L-shaped protrusion 31 has the same height as the engagement length d of both, and the right support 30A and the left protrusion 31A are combined to form the rotation support 25. is there.

  By using such a rotation support portion 25, it can be formed compactly with a simple configuration, is easy to assemble, is less likely to cause problems such as rattling and disengagement during normal conditions and operation, and has some horizontal movement. It can be set as the rotation support part which can do.

  In addition, although the width dimension L of this rotation support part 25 needs to be 1/2 or more of the width | variety of the push operation surface 24, FIG.6 (b) which is sectional drawing in the GG line of Fig.6 (a). As shown in the figure, even if the whole is integrated, as shown in FIG. 5C, there may be no intermediate part and it may be supported at both ends.

  Moreover, as a structure of the rotation support part 25, it is not the structure shown in said FIG. 4 and FIG. 6, but the other structure of the rotation support part of the push button of FIG. 7 (a)-FIG.7 (c). As shown in the front sectional view to be described, L-shaped protrusions 32A to 32C and 34A to 34C and their lateral protrusions 33A to 33C provided on the ceiling surface of the upper case 6 and the lower surface of the other end of the push buttons 5A and 5B. , 35A to 35C, even if the protruding direction and shape are changed, a rotation support portion having similar characteristics can be obtained.

  Next, the guide hole 28 provided in the front-end | tip of the leg part 27 of push button 5A, 5B is demonstrated.

  As shown in the enlarged view of the guide hole of the leg part of the push button of the quadruple composite switch according to the embodiment of the present invention in FIG. 8A, the lower part of the guide hole 28 is indicated by a dotted line in the figure. An ellipse that is a semicircle that engages with the outer diameter of the circular shaft 11, and the upper part of the ellipse is pushed along the radii R 1 and R 2 from the rotation center point of the rotation support portion 25 during the push operation. Any oblong shape that extends in an arc shape by an amount corresponding to the amount may be used.

  However, the amount of movement of the push buttons 5A and 5B when the push switches 3A and 3B are pressed is actually very small compared to the distance from the rotation center point. An oval shape extending linearly along the radius from the center point may be used.

  Even if there is a slight shift in the movement of the push buttons 5A and 5B with respect to the outer diameter of the circular shaft 11 due to the difference in the shape, the push buttons 5A and 5B can be absorbed horizontally by the rotation support portion 25. Can do.

  Furthermore, as shown in FIG. 8B, when the upper part of the guide hole 36 is slightly larger than the outer diameter of the circular shaft 11, the push buttons 5A and 5B move more smoothly when the push switches 3A and 3B are operated. However, the amount by which the circular shaft can move laterally in the guide hole 36 at this time must be smaller than the engagement length d of the rotation support portion 25.

  Then, on the lower surface of the wiring board 8 of the quadruple composite switch 1 according to the present embodiment, two pairs of the left first press switch 9A and the right first press switch 9B are used as pairs for the seesaw switches 2A and 2B. A connector 37 for taking out signals from the two sets of four pressure switches and the two second pressure switches 10 for the push switches 3A and 3B is mounted, and is transmitted to the circuit of the device used via the lead wire 38. It is like that.

  The quadruple-type composite switch 1 according to the present embodiment is configured as described above. The seesaw buttons 4A and 4B are fitted and held on one circular shaft 11, and the large angle of the upper case 6 in the normal state. Positioned by the torsion coil spring 21 elastically contacting the end face of the hole 16A, the push buttons 5A and 5B are also pushed by the compression coil spring 29, so that the semicircular portion below the guide hole 28 of the leg portion 27 has the same circular shape. Since it is engaged with the shaft 11, the plurality of seesaw buttons 4A, 4B and push buttons 5A, 5B arranged are aligned in both a top view and a side view, and when operated, the seesaw buttons 4A, 4B are arranged. Smoothly pivots about the circular shaft 11 and pushes down both first pressing bars 12A and 12B vertically, and the push buttons 5A and 5B move around the rotation support portion 25 to suspend the second pressing bar 14 The depressed, both push switch 9A, respectively, 9B and a second push switch 10 can be operated straight press.

  Next, a manufacturing method of the quadruple composite switch 1 according to the present embodiment will be described.

  First, as shown in the side view of the partial cross section for explaining the coupling method of the seesaw button and the torsion coil spring of the quadruple composite switch according to the embodiment of the present invention in FIG. The left and right hook portions 22A and the right hooks on both sides are fitted into the outer periphery of the cylindrical rib 20 around the circular hole 18A provided in the main leg portion 17A of the seesaw buttons 4A and 4B, as shown by arrows in FIG. While narrowing the tip interval of the portion 22B, the seesaw buttons 4A and 4B are inserted between the left engaging portion 23A on the lower surface of the left operating surface 19A and the right engaging portion 23B on the lower surface of the right operating surface 19B, and both hook portions 22A, The tip of 22B is elastically contacted and held by the two locking portions 23A and 23B to form a seesaw button 39 with a spring.

  As described above, by assembling the seesaw buttons 4A and 4B and the torsion coil spring 21 in advance as the seesaw button 39 with a spring, the work of assembling in the upper case 6 described below becomes very easy.

  The coil portion 21A of the torsion coil spring 21 may be configured to be fitted into the inner periphery of the cylindrical rib 20 around the circular hole 18A provided in the main leg portion 17A. It is necessary to set so as not to obstruct the passage of the circular shaft 11 through the circular hole 18A.

  Next, a partial front sectional view for explaining a method of inserting a seesaw button into the upper case of the quadruple composite switch according to the embodiment of the present invention shown in FIG. 10A and a sectional view taken along the line H-H in FIG. As shown in FIG. 10 (b), the left pressing rod 12A and the right pressing rod 12B from above are inserted into the holding holes of the cylindrical portions 13A and 13B provided in pairs at the center of the ceiling surface of the upper case 6. Next, the main leg portion 17A and the auxiliary leg portion 17B of the seesaw button 39 with spring are respectively inserted into the two large angle holes 16A and the small angle holes 16B at the center of the ceiling surface.

  At this time, the end surface of the left hook portion 22A and the right hook portion 22B of the torsion coil spring 21 held by the main leg portion 17A of the seesaw button 39 with a spring is inclined by the large-angle hole 16A (see FIG. 10B). The circular holes 18A and 18B at the tips of the main leg portion 17A and the auxiliary leg portion 17B of each seesaw button 39 with a spring are closed on the wall surface 6A at the end portion in the longitudinal direction of the upper case 6. It comes on substantially the same center line as the through hole 40B provided in the hole 40A and the wall surface 6B.

  Subsequently, in the side sectional view for explaining the method of inserting the push buttons 5A and 5B into the upper case 6 of the quadruple composite switch according to the embodiment of the present invention shown in FIG. 11, first, as shown in FIG. In addition, after inserting the second pressing rod 14 together with the compression coil spring 29 from above into the stepped holding holes 15A of the cylindrical portion 15 provided at two locations on both ends of the ceiling surface of the upper case 6, the step of the cylindrical portion 15 is performed. The leg portions 27 of the push buttons 5A and 5B are inserted into a long hole 26 provided on the same line as the attached holding hole 15A.

  At this time, as shown in FIG. 5B, the leg portions 27 are inserted into the long holes 26 while the push buttons 5A and 5B are slightly shifted to the right with respect to the upper case 6 so that the L-shaped projections 31 The push button 5A is placed on the right side ceiling surface of the right protrusion 30A of the L-shaped projecting portion 30 projecting from the ceiling surface of the upper case 6 while pushing down the second pressing rod 14 previously inserted on the lower surface on the non-side. 5B, the tip of the L-shaped protrusion 31 is placed.

  In this state, as indicated by an arrow in FIG. 11B, the push buttons 5A and 5B are shifted to the left in the drawing, so that the L-shaped projecting portion 31 is located below the right-direction projection 30A of the L-shaped projecting portion 30. The left protrusion 31A enters and is combined to form the rotation support portion 25, whereby the push buttons 5A and 5B are temporarily held by the upper case 6.

  With the seesaw buttons 4A and 4B and the push buttons 5A and 5B inserted into the upper case 6 as described above, the circular shaft 11 is inserted and mounted next.

  As shown in the front sectional view for explaining the method of inserting the circular shaft into the upper case after the button insertion of the quadruple composite switch according to the embodiment of the present invention in FIG. 12, the seesaw button 4A, 4B and push buttons 5A and 5B are held so that the operation surfaces are on the same plane, circular holes 18A and 18B on both legs of seesaw buttons 4A and 4B, and guide holes 28 on legs 27 of push buttons 5A and 5B. Are on substantially the same center line as the closed hole 40A provided in the wall surface 6A at the longitudinal end of the upper case 6 and the through hole 40B provided in the wall surface 6B.

  Then, the circular shaft 11 is inserted into the through hole 40B of the wall surface 6B of the upper case 6 from the spherical portion 11A side at one end, and each of the guide hole 28 at the tip of the leg portion 27 of the push button 5A and the two seesaw buttons 39 with springs. After sequentially passing through the circular holes 18A and 18B at the distal ends of the main leg portion 17A, the auxiliary leg portion 17B and the guide holes 28 at the distal end portions of the push buttons 5B, the spherical portion 11A is finally closed by the wall surface 6A of the upper case 6. When the large-diameter portion 11B at the other end of the circular shaft 11 is press-fitted into the hole 40A that has come off, and is press-fitted into the through-hole 40B of the wall surface 6B, the quadruple composite switch according to the embodiment of the present invention shown in FIG. The upper case work-in-process 42 is as shown in the front sectional view for explaining the final combination process.

  When the circular shaft 11 is inserted into the upper case after the button is inserted, if the holding jig 41 is on the lower side and the opening side of the upper case 6 is directed upward, the circular shaft 11 is guided by each leg portion. The insertion operation can be easily and reliably performed while visually confirming the holes 28 and the portions entering the circular holes 18A and 18B.

  Here, the relationship between the outer diameter of the circular shaft 11 and the closed holes 40A and the through holes 40B provided in the wall surfaces 6A and 6B at both ends in the longitudinal direction of the upper case 6 will be described.

  The circular shaft 11 is formed by cutting one end of a constant outer diameter portion into a spherical portion 11A as shown in FIG. 12 after cutting a stainless steel rod or high strength aluminum alloy rod having a constant outer diameter into a predetermined length. The other end is processed into a large-diameter portion 11B by a method such as making a small hole in the portion within the thickness range of the wall surface 6B of the upper case 6 to expand the outer diameter.

  The diameter of the hole 40A in which the wall surface 6A of the upper case 6 is closed is slightly smaller than the constant outer diameter of the circular shaft 11, and the diameter of the through hole 40B in the wall surface 6B is slightly smaller than the constant outer diameter of the circular shaft 11. And is slightly smaller than the large-diameter portion 11B at the other end.

  Therefore, as shown in FIG. 12, the circular shaft 11 is inserted into the through hole 40B of the wall surface 6B of the upper case 6 using the spherical portion 11A at one end as a guide, and the guide hole at the tip of the leg portion 27 of the push button 5A. 28, sequentially passes through the circular holes 18A and 18B at the tips of the main leg portions 17A and the auxiliary leg portions 17B of the two spring-loaded seesaw buttons 39 and the guide holes 28 at the tips of the legs of the push button 5B, and finally the spherical portion 11A. The upper case 6 is press-fitted into the closed hole 40A of the wall surface 6A, and the large-diameter portion 11B at the other end is press-fitted into the through-hole 40B of the wall surface 6B. The upper case work-in-progress 42 can be easily held without wobbling on the wall surfaces 6A and 6B.

  Note that one end of the circular shaft 11 may be chamfered instead of a spherical surface, and the other end may be formed by deforming a part of the outer diameter to form a large diameter portion.

  Thereafter, as shown in FIG. 13, two pairs of left and right pressing switches 9A and 9B and two second pressing switches 10 are paired on the upper surface, and the connector 37 with the lead wires 38 is disposed on the lower surface. If the mounted wiring board work-in-progress 43 is sandwiched between the peripheral wall of the lower case 7 and the peripheral wall of the lower surface of the upper case work-in-progress 42, and the case is fixed with screws (not shown), FIG. The quadruple composite switch 1 according to the present embodiment shown in FIG.

  By combining both cases in this manner, the outer side of the through hole 40B of the wall surface 6B of the upper case 6 is blocked by the extension 44 of the peripheral wall of the lower case 7, and the circular shaft 11 cannot be removed.

  Next, the operation of the quadruple composite switch 1 according to this embodiment will be described.

  One of the four functions that can be adjusted by the quadruple composite switch 1 shown in FIG. 5, for example, the case of adjusting the angle of the “backrest” of the seat will be described.

  First, the operation when the seesaw button 4A on which the “backrest angle adjustment” diagram is selected from the four operation buttons of the quadruple composite switch 1 shown in FIG. 5 will be described.

  When the operating surface of the seesaw button 4A is viewed from the left side and the left operating surface 19A marked with a V mark in the vicinity of the left end portion is pushed downward, the operating states on the DD line and the EE line shown in FIG. 14 and 15, which are cross-sectional views to be described, the seesaw button 4A of the seesaw switch 2A resists the biasing force of the torsion coil spring 21, and the circular holes 18A at the tips of the main leg 17A and the auxiliary leg 17B, It rotates to the left about the circular shaft 11 fitted with 18B.

  That is, the right hook portion 22B of the torsion coil spring 21 is pushed away from the end surface of the large-angle hole 16A of the upper case 6 by being pushed by the right locking portion 23B of the seesaw button 4A, and the left operation surface 19A of the seesaw button 4A The spherically shaped portion at the upper end of the left pressing rod 12A with which the inclined lower surface is in contact is pushed downward.

  Accordingly, when the pressing portion of the left pressing switch 9A with which the lower end of the left pressing rod 12A is in contact is pushed straight down to turn on the left pressing switch 9A, the “backrest” of the seat starts to rise due to the electrical signal.

  Then, when the pressing force applied to the left operation surface 19A of the seesaw button 4A when the “backrest” is raised to a desired angle is removed, the right engaging portion 23B on the lower surface of the right hook portion 22B of the torsion coil spring 21 is removed. The seesaw button 4A is rotated by being pushed by the tip portion, the right hook portion 22B returns to a position where it hits the end face of the large-angle hole 16A of the upper case 6, the left pressing switch 9A is turned off again, and the pressing portion is also turned on by self-returning force. Returning to the original position, the left pressing rod 12A is pushed up to the original position.

  In this way, it is possible to adjust the direction in which the “back” of the seat is caused.

  The pressing stroke when pressing the left operation surface 19A of the seesaw button 4A is such that the large diameter portion at the tip of the left pressing rod 12A hits the ceiling surface of the upper case 6 which is the end surface of the cylindrical portion 13A, or The end of the side wall below the left operation surface 19A of the seesaw button 4A is regulated by hitting the ceiling surface of the upper case 6, and the left push switch 9A is not pushed excessively.

  Similarly, when the right operation surface 19B of the seesaw button 4A is pushed downward, the right push switch 9B can be operated this time to adjust the direction of tilting the “backrest” of the seat.

  The seesaw switches 2A and 2B operate as described above. When the operation surface of the seesaw button 4A or the seesaw button 4B is pressed, the left pressing bar 12A or the right pressing bar 12B starts to descend and the left pressing switch 9A or the right pressing switch 9B. Since the pressing force at the time when the pressing portion of the first member starts to move may be small, the force applied to the left pressing rod 12A or the right pressing rod 12B from the inclined lower surface of the operation surface is reduced to the downward force and the lateral force to the lateral force. Even if the pressing force decreases, the left pressing rod 12A or the right pressing rod 12B slides on the spherical shape portion at the upper end to release the lateral component force, and the left pressing rod 12A or the right pressing rod 12B is easily pressed down. be able to.

  At the time of the switch operation when the greatest pressing force needs to be applied to the left push switch 9A or the right push switch 9B, the lower surface of the operation surface pushes the left push rod 12A or the right push rod 12B substantially vertically, so that There is no component force, and the left push switch 9A or the right push switch 9B can be operated reliably.

  Next, the operation when the push button 5A on which the “standard chair” diagram is displayed is selected from the four operation buttons of the quadruple composite switch 1 shown in FIG. 5 will be described.

  FIG. 2 is a cross-sectional view for explaining the operation state along the line FF shown in FIG. 1 when the push operation surface 24 marked with a circle in the vicinity of the left end is pushed downward when the operation surface of the push button 5A is viewed from the left side. In FIG. 16, the push button 5 </ b> A of the push switch 3 </ b> A is pivotally supported at the end opposite to the push operation surface 24 against the urging force of the compression coil spring 29 pushing up the second pressing rod 14. It rotates to the left about the part 25.

  At this time, the guide hole 28 at the tip of the leg portion 27 below the push button 5A moves downward with the oval lower semicircular portion disengaged from the circular shaft 11, and the push button 5A moves on the push operation surface 24. The second pressing rod 14 elastically contacting the lower surface is pushed downward.

  As a result, when the lower end of the second pressing rod 14 pushes the pressing portion of the second pressing switch 10 that is in contact with the second pressing switch 10 straight downward to turn on the second pressing switch 10, the electric signal “ Seats that have changed the angle of the “backrest” or “footrest” will automatically be in the “standard chair” position.

  When the pressing force applied to the push operation surface 24 is removed, the push button 5A is rotated about the rotation support portion 25 by being pushed up by the urging force of the second pressing rod 14 that is elastically in contact with the lower surface. Then, the semicircular portion below the guide hole 28 of the leg portion 27 returns to the position where it engages with the circular rod, and the second pressing switch 10 is turned off again, and the pressing portion also returns to the original position by the self-returning force.

  In this way, the seat can be returned to the “standard chair” state.

  The pressing stroke when pressing the push operation surface 24 of the push button 5A is restricted by the end of the side wall below the push operation surface 24 of the push button 5A hitting the ceiling surface of the upper case 6, The 2 push switch 10 is not pushed excessively.

  Similarly, when the push operation surface 24 of the push button 5B is pushed downward, the push switch 3B is operated this time, and the sheet can be brought into a “flat bed” state.

  The push switches 3A and 3B operate as described above. When the push operation surface 24 is pressed to operate the second push switch 10, the push buttons 5A and 5B rotate around the rotation support portion 25. The moving angle is much smaller than the angle at which the seesaw buttons 4A and 4B of the seesaw switches 2A and 2B rotate around the circular axis 11 in order to operate the left pressing switch 9A or the right pressing switch 9B. The inclination of the lower surface of the push operation surface 24 that presses the second pressing rod 14 is small even at the time of the switch operation of the pressing switch 10.

  Therefore, there is no particular problem even if the lower surface of the operation surface is not inclined like the seesaw buttons 4A and 4B.

  In the above description, the number of seesaw switches and push switches arranged in the multiple composite switch is four, but this can be any number such as three or six.

  Further, the press switches for operating a plurality of seesaw buttons and push buttons are not all the same in operation stroke, operation force, and electric capacity, and may have different ones.

  In the multiple composite switch of the present invention, the seesaw button of a plurality of seesaw switches and the push button of a push switch can be arranged in a reliable manner, so that a plurality of arranged operation buttons are arranged in both top view and side view. In addition to being in a stable array state, the touch during the pressing operation is smooth.

  Therefore, it is useful for applications such as high-class seats such as passenger planes and passenger ships, switches for adjusting the posture by changing the angle of the back of a massage chair, a footrest, or the like.

Front sectional view of a quadruple composite switch according to an embodiment of the present invention Sectional view taken along line DD in FIG. Sectional view taken along line EE in FIG. Sectional drawing in the FF line of FIG. External perspective view of the quadruple composite switch (A) The expanded sectional view of the rotation support part of the push button of the quadruple-type composite switch, (b), (c) The sectional view along the GG line of FIG. 6 (a) (A), (b), (c) Front sectional drawing explaining the other structure of the rotation support part of the push button of the 4 type | mold composite switch. (A), (b) The enlarged view of the guide hole of the push button leg part of the same quadruple compound switch Side view of a partial cross section for explaining a method of connecting a seesaw button and a torsion coil spring of the quadruple composite switch (A) Partial front sectional view for explaining a method of inserting a seesaw button into the upper case of the quadruple composite switch, (b) Cross sectional view taken along line HH in FIG. 10 (a) (A), (b) Side sectional view explaining the insertion method of the push button to the upper case of the quadruple compound switch Front sectional view explaining a method of inserting a circular shaft into the upper case after button insertion of the quadruple-type composite switch Front sectional view for explaining the final combination process of the quadruple composite switch Sectional drawing in the DD line | wire shown in FIG. 1 explaining the operation | movement state of the same quadruple compound switch Sectional drawing in the EE line shown in FIG. 1 explaining the operating state of the quadruple-type composite switch Sectional drawing in the FF line | wire shown in FIG. 1 explaining the operation state of the same quadruple compound switch

Explanation of symbols

1 4-unit type composite switch (Multi-unit type composite switch)
2A, 2B Seesaw Switch 3A, 3B Push Switch 4A, 4B Seesaw Button 5A, 5B Push Button 6 Upper Case 6A, 6B Wall 7 Lower Case 8 Wiring Board 9A Left First Press Switch (Left Press Switch)
9B Right first push switch (Right push switch)
10 Second pressing switch 11 Circular shaft 11A Spherical surface portion 11B Large diameter portion 12A Left first pressing rod (left pressing rod)
12B 1st right pressing bar (right pressing bar)
13A, 13B, 15 Cylindrical portion 14 Second pressing rod 15A Stepped holding hole 16A Large angle hole 16B Small angle hole 17A Main leg portion 17B Secondary leg portion 18A, 18B Circular hole 19A Left operation surface 19B Right operation surface 20 Rib 21 Torsion coil Spring 21A Coil portion 22A Left hook portion 22B Right hook portion 23A Left locking portion 23B Right locking portion 24 Push operation surface 25 Rotating support portion 26 Long hole 27 Leg portion 28, 36 Guide hole 29 Compression coil spring 30, 31, 32A to 32C, 34A to 34C L-shaped projection 30A Right projection 31A Left projection 33A to 33C, 35A to 35C Lateral projection 37 Connector 38 Lead wire 39 Spring-loaded seesaw button 40A Hole 40B Through hole 41 Holding jig 42 Top Case work in progress 43 Wiring board work in progress 44 Extension

Claims (8)

A rectangular parallelepiped case whose lower surface is an opening,
A circular shaft made of a rigid material held in the case by the wall surfaces of both ends parallel to the end face of the opening on a substantially center line in the longitudinal direction of the case;
A wiring board that is disposed so as to close the opening of the case, and has a plurality of pressing switches arranged and mounted on the upper surface;
A plurality of first pressing bars and at least one second pressing bar, which are held in a position corresponding to each of the plurality of pressing switches so as to be movable up and down by a cylindrical portion on the lower surface of the ceiling surface of the case;
The upper part is exposed on the ceiling surface of the case to form the left and right operation surfaces, and downward through the ceiling surface of the case so that the outer distance between both legs is 1/2 or more of the width of the operation surface. A circular hole at the tip of the two projecting leg portions is rotatably fitted and held by the circular shaft, and each of the first and the second operation surfaces is in contact with the lower surfaces of the left and right operation surfaces at symmetrical positions across the circular shaft. A seesaw button in which the pressing switch is arranged on the wiring board at a position below the pressing bar;
A coil portion is disposed around the circular shaft, and hook portions at both ends are elastically contacted with a constant urging force on the end surface of a square hole provided symmetrically on the ceiling surface of the case with the axis of the circular shaft interposed therebetween. And a torsion coil spring in which the extended tip portions of the hook portions at both ends elastically contact a pair of locking portions provided at the lower part of the operation surface of each seesaw button,
The upper end is exposed on the ceiling surface of the case, the vicinity of one end forms a push operation surface, and the support portion has a width that is 1/2 or more of the width of the push operation surface. Is supported on the case so as to be rotatable without moving up and down, and protrudes downward through a long hole in the ceiling surface of the case, and is provided at the tip of a leg portion having a thickness smaller than the diameter of the circular shaft. Further, the lower part is a semicircular shape that engages with the outer diameter of the circular shaft and is an oval having a length corresponding to the pressing amount at the time of the push operation, and the guide that restricts the rotation around the rotation support part. A push button in which the push switch is arranged on the wiring board at a position below the second push rod that is in contact with the lower surface of the push operation surface while the circular shaft passes through the hole;
It is wound around the outer periphery of the second pressing rod, and the lower surface of the operation surface of each push button is pushed upward via the second pressing rod so that the semicircular portion at the lower portion of the guide hole is engaged with the circular shaft. A compression coil spring that biases
A multiple composite switch, wherein at least one seesaw button and at least one push button are arranged in a predetermined order. The push button rotation support portion has L-shaped protrusions protruding from both the upper surface of the ceiling surface of the case and the lower surface of the other end of the push button. The vertical protrusion is set to zero by combining it with the thickness of the directional protrusion, and the engagement length of the two is determined so that the circular axis is lateral in the guide hole of the push button leg. The multiple composite switch according to claim 1, wherein the multiple switch is larger than a movable amount. The lateral protrusions of the L-shaped protrusions protruding from both the upper surface of the ceiling surface of the case and the lower surface of the other end of the push button are both equal in thickness to the engagement length, and the outer side of the tip is the engagement gap. 3. The multiple composite switch according to claim 2, wherein the switch is a circular arc shape having a radius as a dimension. The pressing of the first pressing rod or the second pressing rod between the first pressing rod and the upper end surface of the cylindrical portion holding the first pressing rod or between the seesaw button or push button and the upper surface of the case ceiling surface The multiple composite switch according to claim 1, further comprising a stopper portion that restricts movement in the direction. A pressing force is applied to one of the left and right operation surfaces of the seesaw button, so that the seesaw button rotates and tilts, and the first pressing rod that is in contact with the lower surface of the operation surface is pressed down so that the lower pressure switch At the time of operation, the lower surface of the operating surface of the seesaw button is in the normal state so that the lower surface of the operating surface with which the upper end of the first pressing rod contacts is substantially perpendicular to the axial direction of the pressing rod. 2. The multiple composite switch according to claim 1, wherein the multiple composite switch according to claim 1 is inclined with respect to the axial direction of the pressing rod, and the upper end of the pressing rod has a spherical shape. The coil portion of the torsion coil spring is disposed on an inner periphery or an outer periphery of a cylindrical rib provided around a circular hole at a tip end of one leg portion of the seesaw button. A multiple composite switch as described in 1. One wall surface at both longitudinal ends of the case holding the circular shaft is provided with a hole that is slightly smaller than the constant outer diameter of the circular shaft and closed outward, and the other end surface has A through hole slightly larger than the constant outer diameter of the circular shaft is provided, one end of the constant outer diameter of the circular shaft is chamfered or processed into a spherical surface, and the other end is provided with the through hole. 2. The multiple composite switch according to claim 1, wherein the multiple composite switch is processed so that a portion having an outer diameter slightly larger than a diameter of the through hole is within a range of the wall thickness. While inserting the coil portion of the torsion coil spring around the cylindrical rib around the circular hole provided on one leg portion of the seesaw button, the seesaw is narrowed while reducing the tip interval between the hook portions at both ends of the torsion coil spring. A step of inserting a spring between a pair of engaging portions at the lower part of the operation surface of the button to elastically contact and hold it to make a spring-loaded seesaw button;
Inserting a plurality of first pressing rods and a predetermined number of compression coil springs and second pressing rods from above into the cylindrical portion of the lower surface of the ceiling surface of the case;
Inserting and temporarily holding two legs of the spring-loaded seesaw button in a square hole in the ceiling surface of the case;
Inserting a predetermined number of push button legs into the long hole in the ceiling surface of the case, and engaging and temporarily holding the rotation support part;
While maintaining the position of the case with the determined number of the seesaw button and the push button with the spring by a holding jig, the circular shaft is inserted from the spherical surface of one end into the through hole of the case wall, and the determined number of After sequentially passing through the circular hole and guide hole at the tip of each leg portion of the seesaw button and push button with spring, the spherical portion is finally press-fitted into the closed hole of the wall surface of the case, and the other end of the circular shaft A method of manufacturing a multiple composite switch, comprising the step of press-fitting a large-diameter portion into a through-hole in the wall surface to make a case work in progress.

Images