JP4472730B2 - Input device - Google Patents

Description

  The present invention relates to an input device in which a multidirectional operation switch and a rotary encoder are integrated.

This type of input device is used in an input unit of a device such as a mobile phone, a digital camera, or a portable information terminal. 12 to 13 show a configuration described in Patent Document 1 as a conventional example of such an input device, FIG. 12A shows an appearance, and FIG. 12B shows a partially broken interior. Is. FIG. 13 is an exploded view of each part.
In this example, the input device includes a base 11, a flexible printed wiring board 12 disposed on the base 11, a housing 13 fixed on the base 11, a rotary encoder 14 rotatably attached to the housing 13, and a rotary A key top 15 disposed in the center of the encoder 14 and a rotating body (encoder jog) 16 connected to the rotary encoder 14 so as to be integrally rotatable are provided.

The flexible printed wiring board 12 includes a circular portion 12a mounted on the base 11 and a cable portion 12b derived from the circular portion 12a. A central fixed contact 17 is formed at the center of the circular portion 12a. A rotary encoder contact 18 is formed on the circumference surrounding the fixed contact 17. Further, four peripheral fixed contacts 19 are formed at 90 ° intervals on the circumference surrounding the rotary encoder contact 18.
A central movable contact 21 is formed on the central fixed contact 17 in the form of a dome that is click-reversed to form a central switch. Similarly, a peripheral movable contact 22 in the form of a dome is disposed on each peripheral fixed contact 19. Peripheral switches are configured.

The housing 13 has a disc portion 13a having an opening in the center and an annular shaft portion 13b formed to project from the periphery of the opening. The disc portion 13a has four peripheral switch pressing portions 13c in a cantilever shape. Is formed.
The rotary encoder 14 includes an operation ring member 23, a conductive ring plate 24, and the like, and a plurality of detent recesses 23a that provide a click feeling when rotating are formed on the lower outer peripheral surface of the operation ring member 23. In the conductive ring plate 24, pins provided in the operation ring member 23 are passed through the four positioning holes 24a so as to be in contact with the lower surface of the operation ring member 23. At this time, each pin has a sliding contact for the encoder. (Not shown) is attached in contact with the conductive ring plate 24.

The rotary encoder 14 inserts the operation ring member 23 into the annular shaft portion 13b of the housing 13 from the lower side of the housing 13, so that the portion where the detent recess 23a is formed contacts the lower surface of the annular shaft portion 13b. And is rotatably attached to the housing 13. A detent spring 25 that engages with the detent recess 23 a is attached to the housing 13.
The rotating body 16 has an annular shape with an opening in the center, and a locking piece 16a for locking the rotating body 16 and the rotary encoder 14 together on the lower surface side is locked by the locking portion 23b of the operation ring member 23. Four are formed at intervals of 90 °. An annular portion 16b is formed on the lower surface side so as to be positioned on the peripheral switch pressing portion 13c of the housing 13.

The key top 15 is inserted and attached to the central hole of the rotary encoder 14 from below, and the housing 13 is sandwiched between the rotary encoder 14 to which the key top 15 is attached and the rotating body 16 so that they are assembled together. The assembly is completed by inserting and fixing the pin provided on the lower surface of the housing 13 into the mounting hole 11a of the base 11.
In this input device, when the rotating body 16 is rotated, the rotary encoder 14 is rotated. When the rotating body 16 is tilted, the annular portion 16b presses the protrusion 13d of the peripheral switch pressing portion 13c on the tilting side, thereby correspondingly. The peripheral movable contact 22 is inverted and the peripheral switch is operated. Further, when the key top 15 is pressed, the center switch is operated.
JP 2007-66635 A

By the way, in the conventional input device having the structure as described above, the rotating body 16 tilts when the outer peripheral side of the rotating body 16 is pushed. To enable this tilting operation, A certain amount of margin (gap between the four locking pieces 16a of the rotating body 16 that engages with the locking portion 23b of the operating ring member 23 inserted into the annular shaft portion 13b of the housing 13 and the operating ring member 23. ) Is necessary, and accordingly, the rotating body 16 is likely to be rattled.
In addition, since the rotating body 16 is assembled and connected to the rotary encoder 14 only by the four locking pieces 16a located at the periphery of the central opening, for example, a slight force is required when the rotating body 16 is rotated. However, the rotating body 16 is easy to tilt, and this point is also likely to cause rattling.

  In view of the above-described problems, an object of the present invention is to provide an input device capable of preventing the play of a rotating body that is rotated and tilted and obtaining good operability.

According to the first aspect of the present invention, an input device in which a multidirectional operation switch and a rotary encoder are integrated includes four peripheral fixed contacts arranged on the circumference at intervals of 90 ° , and the circumference thereof. A printed wiring board having a plurality of rotary encoder contacts arranged annularly along the circumference thereof, four peripheral movable contacts disposed on each peripheral fixed contact, and a printed wiring board. A mounting and mounting portion that is mounted and has an annular shape surrounding a plurality of peripheral fixed contacts; a housing having an annular bearing portion that is located in the mounting and fixing portion and is connected to the mounting and fixing portion via a plurality of arm portions; And a shaft portion protruding from the center opposite to the operation surface is pivotally supported by the bearing portion, the peripheral wall portion is positioned on the peripheral movable contact, and a flange portion is provided on the outer periphery of the peripheral wall portion The rotating body and the tip of the shaft A fixed member that prevents the shaft portion from coming off from the bearing portion, and has a contact member having a slider that is in sliding contact with the rotary encoder contact, and an annular portion that is attached to the housing and is positioned on the mounting fixed portion and surrounds the rotating body And a metal cover in which four spring pieces having protrusions protruding toward the printed wiring board are arranged in the circumferential direction, and the arm part is elastically deformed. By tilting, the tilting side peripheral movable contact is pressed, and the protrusions of the four spring pieces are positioned at the same angular position as the four peripheral movable contacts in the circumferential direction. The portion is pressed toward the printed wiring board by the four spring pieces.

According to a second aspect of the present invention, in the first aspect of the present invention, a protrusion for pressing the peripheral movable contact is formed on the outer periphery of the bearing portion, and the protrusion is sandwiched between the peripheral wall portion and the peripheral movable contact.
In the invention of claim 3, in the invention of claim 1, irregularities are formed on the surface of the flange portion on which the spring piece abuts.
According to a fourth aspect of the present invention, in the first aspect of the present invention, the cover is integrally formed with an extension that contacts the ground portion of the printed wiring board.
According to a fifth aspect of the present invention, in the first aspect of the present invention, the housing has a housing in which irregularities are formed on an outer peripheral surface of a portion of the shaft portion located on the bearing portion, and an engaging portion that engages with the irregularities is formed at the tip. Attached to.

  According to the invention of claim 6, in the invention of claim 1, a through hole is formed in the center of the rotating body, a button is disposed in the through hole, and a central switch that is pressed by the button is provided on the printed wiring board. It is done.

According to this invention, when the outer peripheral portion of the rotating body is pushed in, the arm portion of the housing is elastically deformed, and the tilting operation of the rotating body is possible by tilting the bearing portion of the housing. The shaft portion can be pivotally supported by the bearing portion without play, and the rotating body has its flange portion restrained by the spring piece of the cover, so that the rotating body does not rattle at these points. Yes. Therefore, it is possible to realize an input device that is excellent in rotational operability and stability.
In addition, since the rotating body is suppressed by the spring piece of the cover, even if an excessive pressing force is applied to the outer peripheral portion of the rotating body, it is possible to prevent an excessive lifting of the rotating body on the opposite side, and thus elastic Excessive stress is not applied to the deforming arm or the like.

Embodiments of the present invention will be described with reference to the drawings.
1 and 2 show the appearance of a first embodiment of an input device according to the present invention, and FIG. 3 shows the cross-sectional structure thereof. 4 shows the internal structure with a part omitted, and FIGS. 5 and 6 show the state as seen from above and below after being disassembled into parts. First, the configuration of each part will be described with reference to FIGS.
In this example, the input device includes a metal plate 31, a flexible printed wiring board 32 having a predetermined pattern and a switch formed on the upper surface thereof, a housing 33, a rotating body 34, a retaining member 35, a contact point The member 36, the button 37, and the cover 38 are comprised.

  The flexible printed wiring board 32 includes a substantially circular portion 32a and a cable portion 32b derived from the substantially circular portion 32a. The substantially circular portion 32a is mounted and fixed on a metal plate 31 having a rectangular shape. A central switch 41 is formed at the center of the substantially circular portion 32a, and a peripheral switch 42 is formed on the circumference surrounding the central switch 41. In this example, four peripheral switches 42 are arranged at intervals of 90 °. Between the circumference where the peripheral switches 42 are arranged and the central switch 41, rotary encoder contacts 43 are arranged in an annular shape along the circumference. In FIG. 5, the dotted electrode 43a indicates, for example, an a-phase electrode, and the hatched electrode 43b indicates a b-phase electrode. Reference numeral 43c denotes a ground electrode.

  In this example, the central switch 41 includes a central fixed contact formed on the flexible printed wiring board 32 and a dome-shaped central movable contact 41a (see FIG. 3) disposed on the central fixed contact 41a. An ON / OFF operation is performed by clicking and reversing. Similarly, the peripheral switch 42 comprises a peripheral fixed contact formed on the flexible printed wiring board 32 and a dome-shaped peripheral movable contact 42a (see FIG. 3) disposed thereon, and the peripheral movable contact 42a is clicked. The ON / OFF operation is performed by reversing. A circular cover sheet 44 is covered on the central movable contact 41a, and a ring-shaped cover sheet 45 is covered on the four peripheral movable contacts 42a. The central movable contact 41a is covered by these cover sheets 44 and 45. The peripheral movable contact 42a is positioned and fixed at a predetermined position.

A pair of holes 31a for fixing and fixing the input device and positioning holes 31b and 31c are formed at four corners of the metal plate 31, and the integrated metal plate 31, flexible printed wiring board 32, and cover are formed. In the sheets 44 and 45, four holes 46 for attaching the housing 33, two holes 47 for attaching the button 37, and a hole 48 for positioning the button 37 are formed through the sheets 44 and 45.
The housing 33 has an annular shape, a mounting fixing portion 33a having a size surrounding the four peripheral switches 42, an annular bearing portion 33b located in the center of the mounting fixing portion 33a, the mounting fixing portion 33a and the bearing portion 33b. And an arm portion 33c that connects the two. The arm portions 33c are formed by extending in the circumferential direction, and in this example, four arm portions 33c are provided at equiangular intervals.

The mounting fixing portion 33a is formed with four plate-like protruding portions 33d protruding on the inner peripheral surface on the lower surface side. Further, the mounting fixing portion 33a is followed by the same height (thickness) as the mounting fixing portion 33a. ) Connecting portions 33e are formed, and one end side of each arm portion 33c is connected to the upper side of each connecting portion 33e. On the other hand, the other end side of each arm portion 33c is connected to a protruding portion 33f protruding from the outer peripheral surface of the bearing portion 33b. Protrusions 33g are further formed to protrude from the lower surfaces of the tips of the four protrusions 33f.
The bearing portion 33b and the four arm portions 33c have a small thickness and are positioned so as to float above the lower surface of the mounting fixing portion 33a, and the upper surface of the four protrusions 33g is the protrusion 33d of the mounting fixing portion 33a. The upper surface is located above the upper surface, and the lower surface is located above the lower surface of the mounting fixing portion 33a. A boss 33h is formed on the lower surface of each protruding portion 33d, and two narrow protrusions 33i are formed on the lower surface of the bearing portion 33b in a concentric manner. Four locking claws 33j for fixing the cover 38 are formed on the outer peripheral surface of the mounting fixing portion 33a.

  The rotating body 34 has a circular operation surface 34a, and a shaft portion 34b is formed to protrude in the center opposite to the operation surface 34a (back surface side). The shaft portion 34b includes a large diameter portion 34c and a small diameter portion 34d, and three bosses 34e are formed on the distal end surface of the small diameter portion 34d on the distal end side. A peripheral wall portion 34f is formed on the outer periphery of the operation surface 34a, and a flange portion 34g is further formed on the outer peripheral lower end side of the peripheral wall portion 34f. A through hole 34h is formed in the center of the rotating body 34, and an inner peripheral side portion of the operation surface 34a surrounding the through hole 34h is a tapered surface 34i, that is, has a countersink shape. A large number of minute convex portions 34j are radially formed on the outer peripheral portion.

The retaining member 35 has a donut plate shape, and is formed with three holes 35a through which the bosses 34e of the rotating body 34 are inserted.
The contact member 36 has a ring shape, and is formed by cutting and raising a slider 36a at three locations in the circumferential direction. Further, like the retaining member 35, three holes 36b through which the bosses 34e of the rotating body 34 are inserted are formed.
The button 37 includes a columnar portion 37a that constitutes a pressing operation surface, a pressing protrusion 37b that is formed to project from the center of the lower surface, and a pair of leg portions 37c that are formed to project from the peripheral surface of the lower surface of the columnar portion 37a. These leg portions 37c are projected from the lower surface of the columnar portion 37a, then stretched in the circumferential direction, and further lowered in one step to be stretched in the circumferential direction. In addition, bosses 37d for assembly are respectively formed on the lower surfaces of the distal ends of the pair of leg portions 37c, and the lower surfaces of the distal ends of the one leg portion 37c are not visible in FIGS. The boss is projected. A large diameter portion 37e is provided at the lower end of the cylindrical portion 37a.

The cover 38 has an annular portion 38a and four engaging portions 38b formed by bending on the outer peripheral side of the annular portion 38a. Each engaging portion 38b has an engaging portion that engages with an engaging claw 33j of the housing 33. A window 38c is formed. The annular portion 38a is formed with narrow spring pieces 38e extending in the circumferential direction by forming slits 38d in the circumferential direction at four locations in the circumferential direction. These spring pieces 38e have a doubly-supported beam structure, and a projecting portion 38f projecting in a U-shape is formed at the center (downward in the bending direction of the locking portion 38b).
The cover 38 is made of metal, and is formed of, for example, a stainless material having a spring property. The rotating body 34, the housing 33, and the button 37 are made of resin. The retaining member 35 is formed of, for example, a stainless plate, and the contact member 36 is formed of, for example, a phosphor bronze plate, and the surface thereof is plated with Au. The metal plate 31 is made of stainless steel, for example. The retaining member may be made of resin.

Each part is assembled as follows.
That is, first, the small diameter portion 34d on the tip side of the shaft portion 34b of the rotating body 34 is inserted into the bearing portion 33b of the housing 33 from above, and the retaining member 35 and the contact member 36 are attached to the rotating body 34 from below the bearing portion 33b. Install. This attachment is performed by inserting the boss 34e of the rotating body 34 into each of the three holes 35a and 36b of the retaining member 35 and the contact member 36, and thermally crimping (thermal welding) the tip of the boss 34e. The body 34 is prevented from being detached by a retaining member 35 and is rotatably supported by the bearing portion 33b, and the contact member 36 rotates integrally with the rotating body 34.

The cover 38 is placed on the housing 33 from the upper side of the housing 33, and the locking claws 33 j of the housing 33 are respectively positioned on the locking windows 38 c of the four locking portions 38 b, and are fixed to the housing 33.
Next, a button 37 is attached to the flexible printed wiring board 32 mounted and fixed on the metal plate 31. This attachment is performed by inserting a positioning boss formed on the button 37 into the hole 48, inserting two bosses 37d for assembly into the hole 47, and thermally crimping the tips of the bosses 37d.

Next, the four bosses 33h of the housing 33 are inserted into the holes 46, and the tip of the boss 33h is caulked to heat the housing 33 to which the rotating body 34, the retaining member 35, the contact member 36 and the cover 38 are attached. It is mounted on the printed wiring board 32 and the assembly is completed. The button 37 is located in the through hole 34h of the rotating body 34 and protrudes from the operation surface 34a.
3 and 4, the protrusion 33g of the housing 33 is in contact with the peripheral movable contact 42a of each peripheral switch 42, and the peripheral wall 34f of the rotating body 34 is in contact with the upper surface of the protrusion 33g. The projection 33g is sandwiched between the peripheral wall portion 34f and the peripheral movable contact 42a. Similarly, the pressing protrusion 37b of the button 37 is positioned on the central movable contact 41a of the central switch 41. The large diameter portion 37e of the button 37 is retained by the rotating body 34. The tips of the three sliders 36a of the contact member 36 are brought into contact with the rotary encoder contact 43, and the slider 36a and the rotary encoder contact 43 constitute a rotary encoder.

On the other hand, the annular portion 38a of the cover 38 is positioned on the mounting fixing portion 33a of the housing 33 and surrounds the rotating body 34, and the protruding portions 38f of the four spring pieces 38e provided on the annular portion 38a are shown in FIG. In this manner, it is elastically contacted with the flange portion 34g of the rotating body 34. Thereby, the flange part 34g will be in the state pressed below, ie, the flexible printed wiring board 32 direction. The protrusions 38f of the four spring pieces 38e are positioned at the same position (angular position) in the circumferential direction as the four protrusions 33g of the housing 33.
In the input device configured as described above, when a part of the outer peripheral portion of the operation surface 34a of the rotating body 34 is pushed in, the arm portion 33c of the housing 33 is elastically deformed, and the bearing portion 33b is inclined to rotate the rotating body. 34 tilting movements are possible. Then, the tilted protrusion 33g is pushed by the peripheral wall 34f of the rotating body 34 due to the tilting of the rotating body 34, and the peripheral movable contact 42a of the corresponding peripheral switch 42 is pressed by the protruding 33g, and the peripheral where the pressing operation is performed. The switch 42 is turned on.

When the pressing force on the operation surface 34a is released, the rotating body 34 returns to the original position by the restoring force of the peripheral movable contact 42a and the elastic restoring force of the arm portion 33c, and the peripheral switch 42 is turned off.
When the rotating body 34 is rotated, the contact member 36 rotates together with the rotating body 34, and the slider 36 a slides on the rotary encoder contact 43 and moves on the rotary encoder contact 43. By detecting this movement electrically, the rotation of the rotating body 34 is detected.
On the other hand, when the button 37 is pushed in, the pair of leg portions 37c is elastically deformed, and the central movable contact 41a of the central switch 41 is pressed by the pressing projection 37b, so that the central switch 41 is turned on. When the pressing is released, the pressing operation surface of the button 37 is returned to the original position by the restoring force of the central movable contact 41a and the elastic restoring force of the leg portion 37c, and the central switch is turned off.

As described above, in this example, the arm portion 33c of the housing 33 is elastically deformed and the bearing portion 33b is tilted so that the rotating body 34 can be tilted. Therefore, the rotation supported by the bearing portion 33b is supported. There is no need for a margin (gap) between the shaft portion 34b (small diameter portion 34d) of the body 34 and the bearing portion 33b, so that the shaft portion 34b of the rotating body 34 can be pivotally supported without play.
Further, the rotating body 34 is pivotally supported in this way, and its flange portion 34g is suppressed by the spring piece 38e of the cover 38 and is held stably in a horizontal manner, so that it does not rattle during the rotation operation. In addition, tilting with a slight force does not occur, so that it can be stably rotated.

Further, since the cover 38 having the plurality of spring pieces 38e is provided in this way, when the rotating body 34 is tilted, the spring piece 38e located on the side opposite to the pressing operation side is pushed by the flange portion 34g and moved upward. When the pressing operation is released, the elastic restoring force of the spring piece 38e acts as a force for returning the rotating body 34 to the original position. Therefore, at this point, the arm portion 33c of the housing 33 is used. This contributes to improving the durability of the arm portion 33c.
In addition, for example, even if an excessive pressing force is applied to the rotating body 34 during the tilting operation of the rotating body 34, the cover 38 prevents excessive lifting on the opposite side of the rotating body 34. It is possible to avoid a situation where a large stress is applied.

  Further, as a reaction force of the slider 36a pressed against the contact 43 for the rotary encoder, an upward force is applied to the bearing portion 33b and the arm portion 33c of the housing 33, but a downward force to counter this is applied. Since the spring piece 38e of the cover 38 is applied to the protrusion 33g formed on the bearing portion 33b via the flange portion 34g, for example, the arm portion 33c has an upward force and heat (temperature increase in use environment) generated by the slider 36a. Therefore, it is possible to avoid the problem that the contact pressure failure of the slider 36a against the rotary encoder contact 43 occurs.

FIG. 7 shows a second embodiment of the present invention. In this example, irregularities are formed over the entire circumference of the surface of the flange portion 34g of the rotating body 34 on which the spring piece 38e of the cover 38 abuts. Is. By providing such a concavo-convex portion 34k, it is possible to obtain a feeling of operation when the rotating body 34 is rotated, and the concave portion of the concavo-convex portion 34k and the protrusion of the spring piece 38e engaged with the concave portion. A detent mechanism can be configured by the portion 38f.
FIG. 8 shows, as a third embodiment of the present invention, an extension portion 38g formed integrally with a cover 38. The extension portion 38g is bent in the same direction as the locking portion 38b. The extended portion 38g is in contact with the ground portion of the flexible printed wiring board 32 when the cover 38 is attached to the housing 33 and the housing 33 is mounted on the flexible printed wiring board 32. In this example, the ground portion of the flexible printed wiring board 32 and the metal plate 31 are electrically connected to each other so that the metal plate 31 forms a ground, and the extension portion 38g is formed so as to be in pressure contact with the side surface of the metal plate 31. ing.

By providing such an extension 38g, a path for releasing static electricity can be secured, and when operating the rotating body 34 with a finger, for example, static electricity charged on the human body is passed through each switch and the signal line of the rotary encoder. It is possible to avoid problems such as entering into a connection destination circuit (not shown) and causing malfunction.
Next, a fourth embodiment of the present invention shown in FIGS.
In the second embodiment shown in FIG. 7, by providing the flange portion 34g of the rotating body 34 with an uneven portion 34k, a detent mechanism is configured by the rotating body 34 and the dog-shaped protruding portion 38f of the cover 38. Although a click feeling is obtained during the rotation operation of the body 34, in this example, the flange portion 34g is not provided with the uneven portion 34k, but on the outer peripheral surface of the large diameter portion 34c of the shaft portion 34b of the rotating body 34, That is, unevenness is formed over the entire outer peripheral surface of the portion of the shaft portion 34b located on the bearing portion 33b of the housing 33, and the spring 51 that engages with the uneven portion 34m is provided.

The spring 51 includes a pair of spring pieces 51a and an attachment portion 51b that connects the base ends thereof. For example, the spring 51 is made of phosphor bronze or spring-made stainless steel. An engagement portion 51c is formed on the free end side of the pair of spring pieces 51a. An attachment hole 51d is formed in the attachment portion 51b.
The spring 51 is attached to the housing 33. In this example, a boss 33k is formed at one position of the connecting portion 33e of the housing 33, a hole 51d is inserted into the boss 33k, and the tip of the boss 33k is caulked to heat the spring 51. Is attached to the housing 33. It should be noted that the outer periphery of the bearing portion 33b of the housing 33 abuts on the proximal end side of the spring piece 51a and restricts the movement of the spring pieces 51a toward each other, that is, on the bearing portion 33b of the housing 33. A pair of stoppers 33m is provided. A configuration as shown in FIGS. 9 to 11 can also be adopted as the detent mechanism.

In each of the above-described embodiments, the input device is provided with the button 37 at the center opening of the rotating body 34 and the center switch 41 operated by the button 37. A configuration without the switch 41 can also be adopted. Further, although the retaining member 35 is provided separately from the contact member 36, the retaining member 35 is formed, and the contact member 36 is fixed to the tip of the shaft portion 34b of the rotating body 34 to be fixed to the shaft portion 34b. It is good also as what keeps coming off from the bearing part 33b.
In addition, a flexible printed wiring board 32 is used as a printed wiring board on which various contacts and switches are formed, and a configuration in which the metal plate 31 is mounted and supported is adopted. A printed wiring board may be used.

  Furthermore, the projection 33g that presses the peripheral movable contact 42a is integrally formed on the housing 33. For example, a small block (small piece) having the same function as the projection 33g is mounted and fixed on the peripheral movable contact 42a. In this case, the projection 33g of the housing 33 is unnecessary. In the embodiment described above, the peripheral switch 42 and the central switch 41 are composed of a fixed contact formed on the printed wiring board and a dome-shaped movable contact disposed on the fixed contact. Other types of switches may be used as long as they are operated.

The figure which shows 1st Example of the input device by this invention, A is a top view, B is a front view, C is a bottom view. The perspective view of the input device shown in FIG. Sectional drawing of the input device shown in FIG. The perspective view which abbreviate | omitted one part of the input device shown in FIG. The perspective view which decomposed | disassembled the input device shown in FIG. 1, and was seen from upper direction. The perspective view which decomposed | disassembled the input device shown in FIG. 1, and was seen from the downward direction. The disassembled perspective view for demonstrating the 2nd Example of the input device by this invention. The disassembled perspective view for demonstrating the 3rd Example of the input device by this invention. The disassembled perspective view for demonstrating the 4th Example of the input device by this invention (The figure seen from upper direction). The disassembled perspective view for demonstrating the 4th Example of the input device by this invention (The figure seen from the downward direction). The perspective view which a part of 4th Example of the input device by this invention was abbreviate | omitted. A is a perspective view showing an example of a conventional configuration of an input device, and B is a perspective view showing a partially broken internal structure. The disassembled perspective view of the input device shown in FIG.

Claims (6)

An input device in which a multidirectional operation switch and a rotary encoder are integrated,
A printed wiring board having four peripheral fixed contacts arranged on the circumference at intervals of 90 ° and a plurality of rotary encoder contacts arranged annularly along the circumference inside the circumference When,
Four peripheral movable contacts disposed on each peripheral fixed contact;
An annular mounting fixing portion mounted on the printed wiring board and surrounding the plurality of peripheral fixed contacts, and an annular bearing located in the mounting fixing portion and connected to the mounting fixing portion via a plurality of arm portions A housing having a portion;
A shaft portion that has an operation surface and projects in the center opposite to the operation surface is pivotally supported by the bearing portion, a peripheral wall portion is positioned on the peripheral movable contact, and a flange portion is provided on the outer periphery of the peripheral wall portion A rotating body provided with,
A contact member fixed to the tip of the shaft portion to prevent the shaft portion from coming off from the bearing portion, and having a slider that is in sliding contact with the rotary encoder contact;
A spring piece that is attached to the housing and has an annular portion that is positioned on the mounting fixing portion and surrounds the rotating body, and has a protruding portion that protrudes toward the printed wiring board is arranged in the annular portion. And four metal covers,
The rotating body can be tilted when the arm portion is elastically deformed, and the peripheral movable contact on the tilting side is pressed by the tilt,
The protrusions of the four spring pieces are positioned at the same angular position in the circumferential direction as the four peripheral movable contacts,
The input device, wherein the flange portion is pressed toward the printed wiring board by the four spring pieces. The input device according to claim 1,
An input device, wherein a protrusion for pressing the peripheral movable contact is formed on the outer periphery of the bearing portion, and the protrusion is sandwiched between the peripheral wall and the peripheral movable contact. The input device according to claim 1,
An unevenness is formed on a surface of the flange portion on which the spring piece comes into contact. The input device according to claim 1,
An input device, wherein an extension portion that contacts the ground portion of the printed wiring board is integrally formed on the cover. The input device according to claim 1,
Unevenness is formed on the outer peripheral surface of the portion located on the bearing portion of the shaft portion,
An input device characterized in that a spring having an engaging portion at its tip that engages with the unevenness is attached to the housing. The input device according to claim 1,
A through hole is formed in the center of the rotating body, and a button is disposed in the through hole,
An input device characterized in that a central switch pressed by the button is provided on the printed wiring board.

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