JP5086776B2 - Compound switch - Google Patents

Description

  The present invention relates to a composite switch including a multidirectional switch and a rotary encoder used for a printer, a mobile phone, and the like.

  Conventionally, as this type of composite switch, there is one in which a dial dedicated to a rotary operation of a rotary encoder is assembled around a push button dedicated to a pressing operation of a central switch in a multi-directional switch and a peripheral switch provided in the periphery thereof. Various are known.

  In many of these composite switches, a flexible printed wiring board in which a fixed contact for a multidirectional switch and a fixed contact for an encoder are printed on the switch unit is used.

This flexible printed circuit board is printed with a central fixed contact for a multidirectional switch and a plurality of peripheral fixed contacts around it at the center of a single printed circuit board. The fixed contact for the encoder is arranged in an annular shape on the outside (see Patent Documents 1 and 2).
JP 2003-36767 A JP 2004-178813 A

  In any of the above composite switches, a dial dedicated to the rotating operation of the rotary encoder is disposed around the push button dedicated to the pressing operation of the multi-directional switch. I can't deny that.

  In addition, since the fixed contact for the rotary encoder is printed on one surface of the flexible printed wiring board in the switch unit so as to surround the fixed contact for the multi-directional switch, the switch unit becomes large in diameter, and the switch operation Along with the increase in diameter of the part, the entire composite switch is increased in size.

  Therefore, the present invention provides a composite switch that can reduce the diameter of the switch operation unit, reduce the area occupied by the switch operation unit in various devices in which the composite switch is incorporated, and increase the degree of freedom of layout. To do.

In the composite switch of the present invention, the base,
A multi-directional switch fixedly arranged on the base, comprising a central switch and a plurality of peripheral switches provided on the periphery of the central switch;
A rotary encoder provided on the back side of the multidirectional switch;
A push button disposed in a portion directly above the central switch in the multi-directional switch and operating the central switch by a pressing operation;
A dial that surrounds the push button and is rotatably arranged in parallel with the base surface, and operates the rotary encoder by a turning operation.
Peripheral switch pressing operation that operates a predetermined peripheral switch by disposing the dial movably in the surface direction with respect to the base and pressing a predetermined position corresponding to each peripheral switch of the multi-directional switch. While adding functionality,
Between the dial and the multi-directional switch, a pressing force transmission member that is fixed to the base side and transmits a pressing force to a predetermined peripheral switch when pressing a predetermined position of the dial,
The pressing force transmission member is provided via a leaf spring portion above each peripheral switch in the multidirectional switch, and a dial sliding contact piece that elastically slides on the back surface of the dial;
The most important feature is that it includes a pressing member protruding from the back surface of each dial sliding contact piece and having a tip abutting against each peripheral switch.

  According to the present invention, since the push button is set for the pressing operation of only the central switch in the multi-directional switch, first, the push button can be reduced in diameter and disposed around the push button. The dial for operating the rotary encoder is also movably arranged in the surface direction with respect to the base, and this dial is provided with a peripheral switch operating function for operating the peripheral switch in the multi-directional switch. The diameter of the dial can be reduced as the diameter of the push button is reduced without impairing the operability of the peripheral switch.

  As a result, the diameter of the switch operation unit can be reduced as much as possible, the area occupied by the switch operation unit in various devices in which the composite switch is incorporated can be reduced, and the degree of freedom in layout can be increased.

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

    1 is an external perspective view of the composite switch according to the present invention, FIG. 2 is an external perspective view of the composite switch according to the present invention as viewed from the back side, and FIG. 3 is a cross-sectional perspective view of the composite switch shown in FIG. FIG. 2 is an exploded perspective view of the composite switch shown in FIG. 1.

  5 is a developed plan view of the flexible printed wiring board, FIG. 6 is a perspective view of the switch unit, FIG. 7 is a perspective view of the switch unit viewed from the back side, and FIG. 8 is a push button and a pressing force transmission member on the switch unit. 9 is a perspective view of the slider, FIG. 10 is a perspective view of the click mechanism with the ring-shaped leaf spring assembled to the base, and FIG. 11 is a pressing force transmitting member to the switch unit. FIG. 12 is a perspective view of the state in which the switch unit shown in FIG. 11 is assembled to the base, and FIG. 13 is a perspective view of the state in which the switch unit is assembled from the back side. It is a perspective view which shows the state which has arrange | positioned the dial on the other base.

  As shown in FIGS. 1 to 4, the composite switch 1 according to the present embodiment includes a circular push button 10, a dial 20 disposed so as to surround the push button 10, a central switch 31, and a plurality of switches provided around it. The multi-directional switch 30 that has a plurality of peripheral switches 32 and is actuated by pressing the push button 10, the rotary encoder 40 that is actuated by rotating the dial 20, the push button 10, and the dial 20 , A multi-directional switch 30 and a base 50 on which a rotary encoder 40 is disposed.

  Here, in the present invention, the push button 10 is set for a pressing operation of only the central switch 31 of the multidirectional switch 30.

  On the other hand, the dial 20 is movably disposed in the surface direction (vertical direction in FIG. 1) with respect to the base 50, and the dial 20 is positioned corresponding to each peripheral switch 32 of the multidirectional switch 30. The peripheral switch pressing operation function for actuating a predetermined peripheral switch 32 is given by pressing.

  The rotary encoder 40 is provided on the back side of the multidirectional switch 30.

  Specifically, the multidirectional switch 30 is fixedly disposed on one side surface (the upper surface in FIGS. 3, 4, and 6) of a disc-shaped switch base 60 made of a synthetic resin material, and the back side of the switch base 60. A rotary encoder 40 is disposed on the switch unit to form a switch unit.

  In this embodiment, the multidirectional switch 30 includes a central switch 31 and a four-way switch in which four peripheral switches 32 are arranged at equal intervals on a circumference of the periphery. A fixed contact 31a and four peripheral fixed contacts 32a disposed on the circumference of the periphery of the fixed contact 31a, and a flexible printed wiring board 70 having a substantially circular plane which is superposed and fixed on the switch base 60; The dome-shaped movable contacts 31b and 32b are arranged on the central fixed contact 31a and the peripheral fixed contacts 32a, are closed by pressing force from above, and can be restored when the pressing force is removed.

  The dome-shaped movable contacts 31b and 32b are covered with an adhesive sheet (not shown) formed to have substantially the same diameter as the flexible printed wiring board 70 in a state where the dome-shaped movable contacts 31b and 32b are properly positioned on the center fixed contact 31a and each peripheral fixed contact 32a. The adhesive sheet is held on the flexible printed wiring board 70 (see FIG. 5).

  The rotary encoder 40 includes a flexible printed wiring board 71 on which fixed contacts 40a, 40b, and 40c for A-phase, B-phase, and common encoders are printed and fixed on the back surface of the switch base 60, and a slider that will be described later. And an encoder movable contact 40d having three contact leg pieces that are slidably contacted with the encoder fixed contacts 40a to 40c.

  In the present embodiment, the flexible printed wiring board 71 of the rotary encoder 40 is formed in an annular shape, and is integrally connected to the periphery of the flexible printed wiring board 70 of the multidirectional switch 30 via a connecting piece 72.

  The fixed contacts 40a to 40c for the encoder, the central fixed contact 31a of the multidirectional switch 30, and the lead wires of the peripheral fixed contacts 32a are formed in a common band shape integrally formed on the periphery of the flexible printed wiring board 70 of the multidirectional switch 30. It is formed by a drawer part 73.

  On the surface of the switch base 60 on which the flexible printed wiring boards 70 and 71 are fixedly arranged, four pins 61 are projected, and locking holes are provided at positions corresponding to the pins 61 of the flexible printed wiring board 70, respectively. As shown in FIG. 6, the flexible printed wiring board 70 is fixed to the switch base 60 by inserting the engaging holes 74 into the pins 61 and caulking the pins 61 as shown in FIG. .

  The fixing points of the flexible printed wiring board 70 by the pins 61 and the locking holes 74 are set at positions close to the peripheral switches 32 of the multidirectional switch 30.

  On the surface of the switch base 60, a groove portion 62 for receiving the lead portion 73 of the flexible printed wiring board 70 is formed, and a lead slit 63 is formed at the end of the groove portion 62 on the center side of the wiring board. ing.

  The lead-out portion 73 is folded back at the peripheral edge portion of the flexible printed wiring board 70 and accommodated in the groove portion 62, and the end portion is formed to be drawn out from the lead-out slit 63 to the back side of the center portion of the switch base 60.

  On the other hand, as shown in FIG. 7, a cylindrical boss portion 64 and a slider sliding contact step portion 65 are formed on the outer periphery of the molded base portion of the boss portion 64, as shown in FIG. The flexible printed wiring board 71 of 40 is folded back to the back side of the switch base 60 by the connecting piece 72 and is inserted into the boss portion 64 and the slider sliding contact step portion 65, and the slider sliding contact step portion 65 and the back surface of the switch base 60. The plurality of protrusions 66 provided at the peripheral edge are overlapped and fixed to the back surface of the switch base 60.

  The flexible printed wiring board 71 is attached to the back surface of the switch base 60 by a double-sided adhesive sheet (not shown) formed in the same shape as the flexible printed wiring board 71 so as not to float from the back surface of the switch base 60. Although it is adhered and fixed as a whole, the locating pin 67 projecting between the adjacent projecting edge portions 66 at the back surface periphery of the switch base 60 and a plurality of ears extending around the periphery of the flexible printed wiring board 71. Due to the engagement with the locating hole 76 provided in the piece 75, it is positioned so that no positional deviation occurs when the connecting piece 72 is folded back.

  The locate pin 67 is caulked after the flexible printed wiring board 71 is bonded and fixed.

  Further, a plurality of pins 68 for projecting and attaching the switch base 60 to the base 50 are projected from the end face of the boss portion 64 of the switch base 60.

  The switch base 60 to which the multi-directional switch 30 and the rotary encoder 40 (specifically, the flexible printed wiring board 71 in detail) configured as described above is attached has the pin 68 at the end of the boss portion 64 and the base 50 corresponding thereto. It is inserted into a mounting hole 51 provided in the central portion, and the protruding end is heat caulked to be fixed to the base 50 (see FIG. 2).

  A harness lead hole 52 is formed in the center of the base 50 as shown in FIGS. 2 and 3, and the lead-out part 73 of the flexible wiring board 70 drawn out from the lead-out slit 63 of the switch base 60 is a boss part 64. It is drawn out from the harness lead-out hole 52 through the inside.

  A harness guide 53 is formed on one side edge of the harness lead-out hole 52 by curling molding toward the inside of the boss portion 64 so that the edge portion is rounded, and the lead-out portion 73 is aligned with the harness guide 53. The pin 68 and the mounting holes 79 provided in the ear pieces 78 formed on both side edges of the drawer portion 73 are engaged with each other on the back surface side of the base 50 and fixed to the base 50 by heat caulking.

  A slider 80 of the dial 20 is disposed between the switch base 60 and the base 50, and when a predetermined position of the dial 20 is pressed between the switch base 60 and the dial 20, A pressing force transmission member 90 that transmits a pressing force to a predetermined peripheral switch 32 is disposed.

  The push button 10, the dial 20, the slider 80, and the pressing force transmission member 90 are all made of a synthetic resin material.

  The slider 80 is formed in an annular shape having a peripheral wall, and a plurality of locking pieces 81 project from the peripheral wall at equal intervals in the circumferential direction.

  The slider 80 is inserted into the boss portion 64 of the switch base 60, and the inner peripheral side edge portion is slidably contacted with the slider sliding contact step portion 65 surface of the base portion of the boss portion 64, and will be described later. The ring-shaped leaf spring 110 constituting the click mechanism 140 is urged by a spring force in a direction in which it abuts on the slider sliding contact step portion 65 surface.

  On the surface of the slider 80 corresponding to the encoder fixed contacts 40a to 40c, an encoder movable contact 40d having three contact leg pieces slidably contacting the fixed contacts 40a to 40c is fixedly arranged. Yes.

  For example, as shown in FIGS. 3 and 9, the movable contact 40d for the encoder is fixed by inserting the movable contact 40d into a pin 82 projecting on the surface of the slider 80 and caulking the pin 82 with heat. It can be carried out.

  As shown in FIG. 8, the pressing force transmission member 90 includes a circular outer frame 91 and an inner frame 92, and four spokes 93 connecting the outer and inner frames 91 and 92.

  The outer frame 91 is formed to have the same outer diameter as that of the switch base 60, and a locking leg piece 94 having a hook portion 94 a at its tip protrudes from the lower surface on the outer extension of each spoke 93.

  A spacer protruding edge portion 91 a is formed on the base portion of each locking leg piece 94, and when the outer frame 91 is placed on the peripheral edge portion of the switch base 60, the outer frame 91 and the peripheral switch 32 in the multidirectional switch 30. The required clearance is secured between the dome-shaped movable contact 32b.

  The outer frame 91 is connected to the inner periphery of the outer frame 91 via leaf springs 95 each consisting of a pair of substantially U-shaped arms and elastically slidably contacts the back surface of the dial 20. Dial sliding contact pieces 96 are provided at equal intervals in the circumferential direction.

  On the back surface of each dial sliding contact piece 96, a pressing member 97 is provided so as to contact the top of the dome-shaped movable contact 32b of each peripheral piece switch 32 in the multidirectional switch 30.

  Therefore, the spoke portion 93 is disposed between the adjacent dial sliding contact pieces 96, 96, specifically, between the adjacent leaf spring portions 95, 95.

  The pressing force transmitting member 90 engages the locking leg piece 94 with a notch 69 formed at the peripheral edge of the switch base 60, and engages the hook portion 94a at the tip with the edge of the notch 69, thereby switching the switch base. The push button 10 is retained by the inner frame 92 in this embodiment.

  That is, the push button 10 is formed in a circular shape, and a flange portion 12 is formed integrally with the blind portion 11 at the lower portion of the peripheral surface, and the push button 10 is connected to the central switch 31 in the multidirectional switch 30. The push button 10 is retained and retained by the inner frame 92 by abutting and engaging the inner frame 92 of the pressing force transmitting member 90 on the flange portion 12. 60 (see FIGS. 3 and 8).

  At the center of the back surface of the push button 10, a pressing element 13 is provided so as to abut on the top of the dome-shaped movable contact 31b of the central switch 31.

  Therefore, this push button 10 is set for pressing operation of only the central switch 31 of the multidirectional switch 30.

  The dial 20 is formed in an annular shape in which the push button 10 can project and be arranged at the center thereof, and an uneven surface 21 for preventing slip is formed on the surface, and the pressing force transmitting member 90 is formed on the back surface. An annular protrusion 22 is formed on the surface of each of the dial sliding contact pieces 96.

  In the present embodiment, the dial 20 is formed in a cup shape including the multidirectional switch 30, the rotary encoder 40, the slider 80, and the pressing force transmission member 90.

  A notch 23 that engages with the locking piece 81 of the slider 80 is formed at the edge of the peripheral wall of the dial 20, and the engagement of the locking piece 81 and the notch 23 causes the dial 20 to be engaged. It rotates integrally with the slider 80 and is movable with respect to the slider 80 in the surface direction.

  Further, the dial 20 protrudes from the base 50 to the flange portion 101 on the upper edge of the dial holder 100 and the outer periphery of the peripheral wall edge of the dial 20 by a circular ring-shaped dial holder 100 fixed to the base 50. By being engaged with the provided flange portion 24, it is retained so as to be freely rotatable.

  Here, when the dial 20 is in a stationary state in which the annular protrusion 22 abuts on the surface of each dial sliding contact piece 96 of the pressing force transmission member 90, the surface of the locking piece 81 of the slider 80, A clearance necessary for the operation of each peripheral switch 32 of the multidirectional switch 30 is ensured between the notch stopping end of the notch portion 23 of the dial peripheral wall.

  Accordingly, by pressing the dial 20 at a predetermined position corresponding to each peripheral switch 32 of the multi-directional switch 30, a peripheral switch operating function for operating the predetermined peripheral switch 32 is given.

  For example, as shown in FIGS. 2 and 3, the dial holder 100 is fixed to the base 50 with a plurality of pins 102 projecting from the lower end of the dial holder 100 in the mounting holes 54 provided on the outer peripheral side of the base 50. Insertion can be performed by caulking the protruding end.

  On the other hand, the slider 80 has a ring-shaped leaf spring 110 fixed on the surface of the base 50, and an inner peripheral side edge on the surface of the slider sliding contact step 65 formed at the base of the boss 64 of the switch base 60. Energizing in the abutting direction prevents backlash in the surface direction.

  As shown in FIG. 10, the ring-shaped leaf spring 110 is fastened and fixed to the base 50 by screw members 130 via a ring-shaped retainer 120 having a larger diameter than that.

  A protruding portion 111 is formed at each spring top portion of the ring-shaped plate spring 110 located at the center between the fixing points of the screw members 130, and the protruding portion 111 is formed on the back surface of the slider 80 as shown in FIG. An uneven portion 83 that is in sliding contact with the portion 111 is formed in the circumferential direction, and the ring-shaped leaf spring 110 and the uneven portion 83 constitute a click mechanism 140 that gives a sense of moderation to the turning operation of the dial 20.

  On the other hand, the flange portion 24 of the dial 20 has a tip that makes point or line contact with the flange portion 101 of the dial holder 100, and a plurality of, for example, four spring forces are applied in the direction in which the flange portions 24 and 101 are separated from each other. The individual leaf spring portions 25 are cut and raised, and a required clearance is set between the flange portions 24 and 101.

  The composite switch 1 having the above configuration is assembled as follows.

  On the surface of the base 50, a ring-shaped leaf spring 110 is attached in advance by a screw member 130 as shown in FIG.

  As shown in FIG. 6, the multi-directional switch 30 includes a flexible printed wiring board 70 that holds and fixes the dome-shaped movable contacts 31 b and 32 b in a predetermined position and is fixed on the surface of the switch base 60. The flexible printed wiring board 71 is folded back to the back side of the switch base 60 by the connecting piece 72 and is inserted into the boss portion 64 and the slider sliding contact step portion 65 as shown in FIG. The belt-like lead-out part 73 is drawn out into the cylindrical boss part 64 from the lead-out slit 63 at the center of the switch base 60.

    Then, the push button 10 is placed on the center of the surface of the switch unit constituted by superimposing and fixing the flexible printed wiring boards 70 and 71 on both sides of the switch base 60 in this way, that is, directly above the central switch 31 of the multidirectional switch 30. As shown in FIG. 8, the pressing force transmission member 90 is assembled to the switch unit via its locking leg piece 94, and the switch unit, the push button 10, and the pressing force transmission member 90 are assembled. Sub-assemble.

  Next, a slider 80 is inserted into the boss portion 64 of the switch base 60 as shown in FIG. 11, and the boss portion 64 is heat caulked and fixed to the base 50 as shown in FIG. The lead-out portion 73 is drawn out from the harness lead-out hole 52 of the base 50 and fixed to the back surface of the base 50 by caulking.

  Next, as shown in FIG. 13, the dial 20 is covered with the pressing force transmission member 90, the switch unit, and the slider 80, and the locking piece 81 of the slider 80 and the notch 23 are engaged. As shown in FIGS. 1 and 2, the dial holder 100 is fixed on the base 50, and is caulked and fixed on the base 50, so that the dial 20 is rotatably held parallel to the surface of the base 50. Is completed.

  In the composite switch 1 assembled in this way, the dome-shaped movable contact of the central switch 31 in the multidirectional switch 30 is pressed by the pusher 13 on the back surface by pressing the push button 10 exposed at the center of the dial 20. The central switch 31 can be operated by pressing the 31b to develop and deform it, and to contact the central fixed contact 31a.

  When the dial 20 is rotated clockwise or counterclockwise in FIG. 1 by placing the belly of the finger against the uneven surface 21 on the surface, the slider 80 is integrally rotated and fixed on the surface. The encoder movable contact 40d thus slidably contacts the encoder fixed contacts 40a to 40c of the flexible printed wiring board 71 on the back surface of the switch base 60, and the rotary encoder 40 can be operated to output a required signal.

  When a predetermined position corresponding to each peripheral switch 32 in the multi-directional switch 30 of the dial 20 is pressed, the annular protrusion 22 on the back surface of the dial 20 corresponds to the predetermined peripheral switch 32 of the pressing force transmitting member 90. The dial sliding contact piece 96 is pushed along with the elastic deformation of the leaf spring portion 95, and the dome-shaped movable contact 32b of the predetermined peripheral switch 32 is pressed by the pressing member 97 on the back surface of the dial sliding contact piece 96. The predetermined peripheral switch 32 can be actuated by expanding and deforming it and bringing it into contact with the peripheral fixed contact 32a.

  That is, the dial 20 has both operation functions of the operation of the rotary encoder 40 and the four-way operation of the multidirectional switch 30.

  When a portion other than the predetermined position of the dial 20 is pressed, there is a concern about the malfunction of the peripheral switch 32. For example, as shown in FIG. 8, each adjacent dial sliding piece 96, 96 of the pressing force transmitting member 90 is shown. Protrusions 98 that restrict the pushing of the dial 20 are provided on the spokes 93 between them, so that when the dial 20 is pressed at a portion other than the predetermined position, the protrusion 98 contacts the back surface of the dial 20. The pressing stroke is regulated in contact with each other, and malfunctions in which adjacent peripheral switches 32 and 32 are simultaneously operated can be prevented.

  According to the composite switch 1 of the present embodiment having the above-described configuration, the push button 10 disposed at the center of the dial 20 is set for pressing operation of only the center switch 31 of the multi-directional switch 30, and the push button 10 The dial 20 for rotating the rotary encoder disposed around has a peripheral switch pressing operation function for pressing the peripheral switch 32 of the multi-directional switch 30, so that the push button 10 can be reduced in diameter. At the same time, the diameter of the dial 20 can be reduced.

  As a result, the diameter of the switch operation unit can be reduced as much as possible, the area occupied by the switch operation unit in various devices in which the composite switch 1 is incorporated can be reduced, and the degree of freedom in layout can be increased.

  Further, since the rotary encoder 40 described above is provided on the back side of the multidirectional switch 30, the switch unit itself composed of the rotary encoder 40 and the multidirectional switch 30 can be reduced in diameter. And the dial 20 can switch the diameter of the switch operation part without any difficulty.

  On the other hand, a pressing force transmission member 90 fixed on the base 50 side is disposed between the dial 20 and the multi-directional switch 30, and when a predetermined position of the dial 20 is pressed, a predetermined peripheral switch 32 is operated. Therefore, the pressing operation force of the dial 20 can be immediately transmitted to the peripheral switch 32 and can be operated accurately.

  In particular, the pressing force transmission member 90 is disposed above each peripheral switch 32 via a leaf spring portion 95, and a dial sliding contact piece 96 that elastically slides on the back surface of the dial 20 and the dial sliding contact. Since the pressing member 97 is provided on the back surface of the piece 96 so as to abut against the peripheral switch 32, there is no gap between the dial 20, the pressing force transmitting member 90, and the peripheral switch 32. Twenty rattles can be easily prevented structurally.

  Further, since the push button 10 is retained by the pressing force transmission member 90 in contact with the central switch 31, the push button 10 can be attached without requiring a dedicated mounting member for the push button 10. Can be installed without rattling.

  In addition, the pressing force transmission member 90 includes a protrusion 98 that contacts the back surface of the dial 20 to prevent malfunction of the peripheral switch 32 when the dial 20 is pressed at a portion other than a predetermined position. The malfunction of the peripheral switch 32 can be surely prevented, and the quality and reliability can be improved.

  Here, as described above, the rotary encoder 40 is provided on the back side of the multidirectional switch 30. In particular, in this embodiment, the multidirectional switch 30 is fixedly arranged on the surface of the switch base 60, and the switch base is arranged. Since the rotary encoder 40 is disposed on the back side of the motor 60, the multi-directional switch 30 and the rotary encoder 40 can be integrally assembled via the switch base 60 and subassembled to form a unit. Assembling property can be improved.

  In addition, since the pressing force transmission member 90 is fixed to the switch base 60 to be sub-assembled, the pressing force transmission member 90 can be assembled simultaneously with the assembly of the switch base 60 to the base 50. Additional workability can be simplified.

  On the other hand, a slider 80 is provided between the switch base 60 and the base 50 so as to be inserted into a cylindrical boss portion 64 projecting from the center of the back surface of the switch base 60 and rotated integrally with the dial 20. Therefore, the slider 80 can smoothly rotate the dial 20.

  Since the slider 80 and the base 50 constitute a click mechanism 140 that gives a moderation feeling to the turning operation of the dial 20, it is possible to maintain the stability of the turning operation of the dial 20 by the click action. it can.

  Further, the multi-directional switch 30 has a flexible printed wiring board 70 in which a central fixed contact 31a and a plurality of peripheral fixed contacts 32a arranged around the central fixed contact 31a are printed and superposed on the surface of the switch base 60. And the dome-shaped movable contacts 31b and 32b which are arranged on the central fixed contact 31a and the peripheral fixed contact 32a and can be developed by the pressing force of the push button 10 and the dial 20, so that the multi-directional switch The 30 switch configuration can be made compact and simplified while keeping the thickness dimension small.

  Similarly, even in the rotary encoder 40, the encoder fixed contacts 40a to 40c are printed and provided on the slider 80 with the flexible printed wiring board 71 superposed on the back surface of the switch base 60, and for the encoder. Since the encoder includes the fixed contacts 40a to 40c and the encoder movable contact 40d that is slidably contacted with each other, the configuration of the rotary encoder 40 can be made compact and simplified while keeping the thickness dimension small.

  In particular, in the present embodiment, the flexible printed wiring board 70 of the multi-directional switch 30 and the flexible printed wiring board 71 of the rotary encoder 40 are integrally connected via a connecting piece 72 to form the flexible printed wiring board 70. Since the flexible printed wiring board 71 is folded back to the back side of the switch base 60 by the connecting piece 72 and is fixed to the back side of the switch base 60 by the connecting piece 72, the switch unit 60 Assembling can be easily performed.

  In addition, the lead wires of the flexible printed wiring boards 70 and 71 are formed in a common lead portion 73 integrally formed on the periphery of the flexible printed wiring board 70, and this lead portion 73 passes through the central portion of the switch base 60. Then, the lead-out wiring structure of the flexible wiring boards 70 and 71 can be simplified because it passes through the boss 64 on the back side and is drawn out from the harness lead-out hole 52 in the center of the base 50.

  Further, the dial 20 is formed in a cup shape and includes the multi-directional switch 30, the rotary encoder 40, the pressing force transmission member 90, and the slider 80, and the dial 20 also has a function as a switch cover. The number of parts can be suppressed as much as possible, and the size can be further reduced.

  The dial 20 is rotatably held by a ring-shaped dial holder 100 fixed to the base 50, but the flange portion 24 on the dial 20 side is in point or line contact with the flange portion 101 on the dial holder 100 side. Since a plurality of leaf spring portions 25 are provided to secure a required clearance between the flange portions 24 and 101 and apply a spring force in a direction in which both of them are separated, the dial 20 and the dial holder The sliding contact resistance with 100 can be reduced.

  Moreover, due to the presence of the leaf spring portion 25, the back surface of the dial 20 and the dial sliding contact piece 96 do not accumulate the leaf spring portion 95 of the pressing force transmitting member 90, that is, without bending the leaf spring portion 95. Can be disposed with zero touch, so that the contact state of the dial 20, the pressing force transmission member 90, and the peripheral switch 32 of the multi-directional switch 30 is maintained to eliminate rattling of the dial 20, The turning operability of the dial 20 can be further reduced.

  Since a slight clearance is maintained between the flange portions 24 and 101, when the peripheral switch 32 of the multi-directional switch 30 is operated by pressing a predetermined position of the dial 20, the flange portion of the dial 20 The malfunction that 24 sticks to the dial holder 100 can be avoided.

1 is an external perspective view showing an embodiment of the present invention. The external appearance perspective view seen from the back surface side of embodiment shown in FIG. The cross-sectional perspective view of embodiment shown in FIG. The disassembled perspective view of embodiment shown in FIG. The expansion | deployment top view of a flexible printed wiring board. The perspective view of a switch unit. The perspective view which looked at the switch unit from the back side. The perspective view which shows the state which assembled | attached the push button and the pressing force transmission member to the switch unit. The perspective view of a slider. The perspective view which shows the state which assembled | attached the ring shaped leaf | plate spring of the click mechanism to the base. The perspective view which looked at the state which assembled | attached the pressing force transmission member and the slider to the switch unit from the back surface side. The perspective view which looked at the state which assembled | attached the switch unit shown in FIG. 11 to the base from the back surface side. The perspective view which shows the state which has arrange | positioned the dial on the base shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Composite switch 10 Push button 20 Dial 24 Flange part 25 Leaf spring part 30 Multidirectional switch 31 Central switch 31a Fixed contact 31b Dome-shaped movable contact 32 Peripheral switch 32a Fixed contact 32b Dome-shaped movable contact 40 Rotary encoder 40a-40c For encoders Fixed contact 40d Movable contact for encoder 50 Base 52 Harness lead-out hole 60 Switch base 64 Cylindrical boss 70, 71 Flexible printed wiring board 72 Connection piece 73 Lead-out part 80 Slider 90 Pressing force transmission member 95 Leaf spring part 96 Dial slide Contact 97 Presser 98 Protrusion for preventing malfunction 100 Dial holder 101 Flange 140 Click mechanism

Claims (11)

  Base and
  A multi-directional switch fixedly arranged on the base, comprising a central switch and a plurality of peripheral switches provided on the periphery of the central switch;
  A rotary encoder provided on the back side of the multidirectional switch;
  A push button disposed in a portion directly above the central switch in the multi-directional switch and operating the central switch by a pressing operation;
  A dial that surrounds the push button and is rotatably arranged in parallel with the base surface, and operates the rotary encoder by a turning operation.
  Peripheral switch pressing operation that operates a predetermined peripheral switch by disposing the dial movably in the surface direction with respect to the base and pressing a predetermined position corresponding to each peripheral switch of the multi-directional switch. While adding functionality,
  Between the dial and the multi-directional switch, a pressing force transmission member that is fixed to the base side and transmits a pressing force to a predetermined peripheral switch when pressing a predetermined position of the dial,
  The pressing force transmission member is provided via a leaf spring portion above each peripheral switch in the multidirectional switch, and a dial sliding contact piece that elastically slides on the back surface of the dial;
  A composite switch, comprising: a pressing member projecting from a back surface of each dial rubbing piece and having a tip abutting against each of the peripheral switches.   2. The composite switch according to claim 1, wherein the push button is retained by the pressing force transmission member while being in contact with the central switch.   The pressing force transmission member protrudes at an intermediate position between the adjacent dial sliding pieces, and when the dial is pressed at a portion other than a predetermined position, the peripheral switch malfunctions by abutting against the dial back surface. The composite switch according to claim 1, further comprising a projection for preventing malfunction.   The multi-directional switch is fixedly disposed on a switch base fixed on the base, and the rotary encoder is disposed on the back side of the switch base. Composite switch described in 1.   The composite switch according to claim 4, wherein the pressing force transmission member is fixed to the switch base.   A cylindrical boss portion projects from the center of the back surface of the switch base. Between the switch base and the base, the switch is inserted into the cylindrical boss portion so as to be rotatable and rotate integrally with the dial. 6. The composite switch according to claim 4, further comprising a movable slider.   The composite switch according to claim 6, wherein a click mechanism is provided between the slider and the base to give a sense of moderation to the turning operation of the dial.   The multi-directional switch is printed with a central fixed contact and a plurality of peripheral fixed contacts arranged on the circumference of the periphery, and a flexible printed wiring board that is superposed and fixed on the switch base,
  6. The dome-shaped movable contact disposed on the central fixed contact and each peripheral fixed contact and deployable by a pressing force of a dial and a dial. 6. Composite switch. The rotary encoder has a flexible printed wiring board on which a fixed contact for the encoder is printed and is fixed on the back surface of the switch base, and
  9. The composite switch according to claim 6, wherein the composite switch is configured by an encoder movable contact provided on the slider and in sliding contact with the encoder fixed contact. 10. The flexible printed wiring board of the rotary encoder is formed in an annular shape that can be inserted into a cylindrical boss part on the back surface of the switch base, and is integrated with a peripheral edge of the flexible printed wiring board of the multidirectional switch via a connecting piece. While being arranged on the back surface of the switch base by folding back with the connecting piece,
  Each lead wire of the fixed contact for the encoder and the fixed contact of the multi-directional switch is formed in a common lead portion integrally formed on the periphery of the flexible printed wiring board of the multi-directional switch,
  The lead-out portion passes through the center portion of the switch base and passes through a cylindrical boss portion on the back side, and is led out to the outside from a harness lead-out hole formed in the center portion of the base. Composite switch.   The dial is formed in a cup shape including the multi-directional switch, rotary encoder, pressing force transmission member, and slider, and is rotated by engagement of flange portions with a ring-shaped dial holder fixed on the base. It is retained and held freely,
  The flange portion on the dial side makes a point or line contact with the flange portion on the dial holder side, secures a required clearance between the flange portions, and applies a plurality of spring forces in a direction in which both of them are separated. The composite switch according to claim 10, further comprising a leaf spring portion.

Images