JP2015043344A - Analog pointing key structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an analog pointing key structure which is excellent in durability and practicability and achieves good operability.SOLUTION: An analog pointing key structure includes: a rigid body key top; an enclosure member having a hole exposing the rigid body key top; a support member to which the rigid body key top is fixed, the support member provided with an elastic return part which allows the key top to displace/return in a direction along a surface; a ring-shaped magnet member which is fixed to the support member at the rear surface side of the enclosure member and is positioned between the rigid body key top and the elastic return part; a magnetic sensor for detecting change in magnetic flux density which is caused by the magnetic member displacing in conjunction with the rigid body key top; an annular blindfold plate provided on a surface of the magnetic member, the blindfold plate including an inner periphery part positioned at the inner side of the hole of the enclosure member; a key top support plate in which the rigid body key top is joined and an outer periphery part is positioned at the rear surface side of the blindfold plate, the key top support plate having an outer diameter larger than an inner diameter of the blindfold plate; and an elastic member which is fixed to a rear surface of the support member and allows the key top to displace/return in a thickness direction of the support member.

Description

  The present invention relates to an analog pointing key structure suitable for use in an operation device of an electronic device such as a mobile phone terminal, a PDA, or a game controller.

  In recent years, cellular phone terminals and portable music players are equipped with functions similar to those of a personal computer such as WEB browsing, and a pointer is displayed on a display screen like a mouse for a personal computer as well as a general direction key. There is a need to install a pointing device that moves continuously and moves in an analog fashion.

As such,
・ Rigid body key top,
A support member to which the rigid key top is fixed on the surface, the rigid key top being allowed to displace in a direction along the surface at a position surrounding the rigid key top; A support member provided with a recoverable elastic return portion;
A ring-shaped magnet member fixed to the support member and surrounding the rigid key top and positioned between the rigid key top and the elastic return portion;
An analog pointing key structure including a magnetic sensor that detects a change in magnetic flux density due to the displacement of the ring-shaped magnet member interlocked with the rigid key top is known.

For example, in the following Patent Document 1,
・ Key top,
A support member having a pusher for pressing the contact input portion of the substrate opposite to the back surface, the key top being fixed to the operation surface side surface;
A magnet fixed to the support member at the lateral position of the pusher with the pusher as the center;
A magnetic sensor that detects a change in magnetic flux density caused by the interlocking of the magnet with the side movement of the key top;
An analog pointing key structure provided with an elastic flexible portion provided between the magnet and the pusher and allowing displacement in the pushing operation direction by pushing the key top is disclosed.

JP 2007-12591 A

  By the way, in the analog pointing key structure disclosed in Patent Document 1, the key top is fixed to a base sheet made of a rubber-like elastic body with an adhesive. For this reason, the key top is moved to the side perpendicular to the direction in which the key top is pushed in. If the user strongly operates the key top, the key top may be peeled off from the base sheet. Will be damaged.

  In addition, since the operation of the key top is defined only by the support member, for example, when the key top is pressed, the displacement of the key top in the pressing operation direction is not immediately restored, or the reactivity of the magnet linked to the key top is low. There was a problem of getting worse. That is, such an analog pointing key structure with low operability has a problem of poor practicality.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide an analog pointing key structure that is excellent in durability, excellent in operability, and excellent in practicality.

  In order to solve the above problems, the present invention provides a first rigid key top and a surrounding member provided so as to surround the first rigid key top and having a hole exposing the first rigid key top. A support member to which the first rigid key top is fixed to a surface, and at least part of a position surrounding the first rigid key top in a direction along the surface of the first rigid key top. The first rigid key top is allowed to be displaced, and a support member provided with an elastic return portion capable of restoring the displacement, and disposed on the back side of the surrounding member, and fixed to the support member. A ring-shaped magnet member which surrounds the first rigid key top and at least a part of which is located between the first rigid key top and the elastic return portion; and the first rigid key top; Interlocked A magnetic sensor that detects a change in magnetic flux density due to a displacement of the ring-shaped magnet member, and an annular blind plate that is provided on the surface of the ring-shaped magnet member and whose inner periphery is located inside the hole of the surrounding member. The first rigid key top is joined to the surface, and the outer peripheral portion is located on the back side of the blindfold plate, and has a larger outer diameter than the inner diameter of the blindfold plate, and the support member An analog pointing key structure comprising: an elastic member that is fixed to the back surface of the support member and that allows the first rigid key top to be displaced in the thickness direction of the support member, and that can restore the displacement. According to another aspect of the present invention, there is provided an analog pointing key structure, wherein the magnetic sensor is accommodated in a relief hole of an insert sheet metal that accommodates a flexible substrate. .

  According to the present invention, the key top support plate to which the first rigid key top is joined has an outer diameter larger than the inner diameter of the annular blindfold plate provided on the surface of the ring-shaped magnet member. The top support plate prevents the first rigid key top from falling off the hole in the blindfold plate, thereby preventing the first rigid key top from being peeled off, and applying the analog pointing key structure of the present invention. Product durability can be increased. In addition, the thickness can be further reduced.

  Further, according to the present invention, a part of the operation of the rigid key top can be defined not only by the support member but also by the elastic member. For example, the displacement due to the pressing operation on the rigid key top can be immediately restored. The positional relationship between the rigid key top and the ring-shaped magnet member can be defined. Therefore, it is possible to provide an analog pointing key structure with good operability and excellent practicality.

It is a disassembled perspective view of the analog pointing key structure A in embodiment of this invention. It is a disassembled perspective view of the key sheet | seat 1 in embodiment of this invention. It is a partial sectional view of key sheet 1 in an embodiment of the present invention. It is a perspective view of the key rubber 6 in embodiment of this invention. It is sectional drawing of the analog pointing key structure A in the location different from FIG. 3 in embodiment of this invention.

FIG. 1 is an exploded perspective view of an analog pointing key structure A according to an embodiment of the present invention.
As shown in FIG. 1, the analog pointing key structure A includes a key sheet 1 formed in a sheet shape, a metal dome sheet 14 and a flexible substrate 16 which are stacked and attached to a front case 24. It is roughly structured. The front case 24 is formed by integrally molding the insert metal plate 19 and resin.

2 is an exploded perspective view of the key sheet 1, and FIG. 3 is a partial cross-sectional view of the analog pointing key structure A. As shown in FIG.
As shown in FIG. 2, the key sheet 1 includes a key unit 2, a direction key 25, a blindfold plate 4, a determination key top 3, a peeling prevention plate 26, a ring-shaped magnet member 5, and a support member. The key rubber 6 and the stopper plate 10 are provided.

  The key unit 2 is a member molded into a sheet shape, and has a circular hole 2a and a plurality of buttons 2c. The circular hole 2a is configured such that the determination key top 3 and the direction key 25 are exposed. The button 2c is elastically deformable so that it can be pressed and returned in the thickness direction of the key unit 2.

  As shown in FIGS. 2 and 3, the decision key top 3 is a member obtained by molding a hard resin into a substantially disk shape, and has a convex top portion 3 a that directly receives an operation in contact with an operator's finger or the like. And a flange portion 3b formed on the outer peripheral side of the top portion 3a. The determination key top 3 is attached to the peeling prevention plate 26 on the back side thereof with an adhesive or the like.

  The peeling prevention plate 26 is a member obtained by molding a hard resin or the like into a substantially disk shape, and has an outer diameter larger than the outer diameter of the determination key top 3.

  The direction key 25 is a member obtained by molding a thin and highly rigid metal plate into a substantially annular shape, and has a larger outer diameter than the circular hole 2 a of the key unit 2. Further, a hole 25 a having an inner diameter larger than the outer diameter of the flange portion 3 b of the determination key top 3 is formed. The decision key top 3 is arranged such that the top portion 3a is exposed inside the hole 25a of the direction key 25.

FIG. 4 is a perspective view of the key rubber 6.
As shown in FIGS. 2 and 4, the key rubber 6 is a member made of a rubber-like elastic body, and is a member that is molded approximately the same size as the key unit 2.
As shown in FIGS. 3 and 4, the key rubber 6 includes a peeling prevention plate attaching portion 7, a ring-shaped magnet fixing portion 9, a bellows portion 8, and a direction key attaching portion 27.
The peeling prevention plate sticking portion 7 is a circular plane having a size substantially corresponding to the peeling prevention plate 26, and is molded at a central portion near one end in the length direction of the key rubber 6.
The ring-shaped magnet fixing portion 9 is a portion that is recessed in the thickness direction of the key rubber 6 from the peeling prevention plate sticking portion 7 and is formed in a substantially U-shaped cross section in the same thickness direction. 7 is formed in an annular shape so as to surround it.
The bellows portion 8 is a portion where the cross section in the thickness direction of the key rubber 6 is formed in a bellows shape, and is a portion formed in an annular shape so as to surround the ring-shaped magnet fixing portion 9. The bellows portion 8 is elastically deformed and can be expanded and contracted when a load acting along the surface of the peeling prevention plate attaching portion 7 is received.
The direction key pasting portion 27 is provided at a position surrounding the bellows portion 8, and the outer peripheral portion 25b of the direction key 25 is fixed with an adhesive.

Moreover, as shown in FIG. 4, the button pusher 6c protrudes from the key rubber 6 at a position corresponding to each button 2c.
The key rubber 6 is also provided with a direction key pusher 6d protruding at a position corresponding to the outer peripheral edge of the direction key 25. For example, four direction key presses 6d are provided at equal intervals in the circumferential direction.
Here, in the key rubber 6, it is also possible to make the rubber hardness around the region inside the bellows part 8 that elastically deforms when the decision key top 3 is operated different from the other rubber hardness. In this case, the rubber hardness is varied at least between the bellows portion 8 and the portion supporting the direction key 25. Thereby, each moving load can be appropriately adjusted when the enter key top 3 is operated and when the other direction keys 25 are operated.

As shown in FIGS. 2 and 3, the ring-shaped magnet member 5 is made of an annular permanent magnet, and is housed and fixed in the ring-shaped magnet fixing portion 9. The ring-shaped magnet member 5 is formed so that its inner diameter is smaller than the diameter of the hole 25a of the direction key 25 and its outer diameter is larger than the diameter of the hole 25a. Further, the outer diameter and the inner diameter of the ring-shaped magnet member 5 are configured such that the difference is larger than the slidable length of the determination key top 3.
Here, it is preferable to reduce the outer diameter of the ring-shaped magnet member 5 as much as possible within a range that does not affect the detection of the differential magnetic flux by the Hall IC 17 (described later) of the ring-shaped magnet member 5. Thereby, the diameter of the bellows part 8 of the key rubber 6 can be reduced, and the adjustment range of the moving load of the direction key 25 can be expanded.

As shown in FIGS. 2 and 3, the stopper plate 10 is a member formed in a substantially disk shape, and includes a pusher portion 11 located in the center, a spring portion 12 surrounding the pusher portion 11, and this spring. And an outer ring fixing portion 12 a formed in an annular shape so as to surround the portion 12.
The pusher portion 11 is formed in a substantially disk shape, and as shown in FIG. 3, a pusher circle surface 11a formed on the side facing the metal dome sheet 14 and the pusher circle surface 11a. And a key top pusher 11b protruding from the center in the direction of the metal dome sheet 14.
In the pusher portion 11, a load receiving surface 11 c formed on the side opposite to the pusher circular surface 11 a is fixed to the back surface 7 b of the peeling prevention plate attaching portion 7 in the key rubber 6.

The spring portion 12 is disposed so as to surround the pusher portion 11 and connects the pusher portion 11 and the outer ring fixing portion 12a. The spring portion 12 is set to a bending load that does not affect the click feeling when the decision key top 3 is pressed, and a load is applied in a direction perpendicular to the thickness direction by the sliding operation of the decision key top 3. Is set so as not to be easily deformed.
The outer ring fixing portion 12 a is formed in an annular shape, is connected to the spring portion 12, and is fixed to the ring-shaped magnet fixing portion 9 facing the metal dome sheet 14.

As shown in FIGS. 2 and 3, the blindfold plate 4 is a substantially annular member, and has an inner diameter larger than the outer diameter of the decision key top 3 and smaller than the outer diameter of the peeling prevention plate 26, and the direction key 25. The outer diameter is larger than the inner diameter of the hole 25a. The blind plate 4 is attached to an annular plane 5 a formed on the ring-shaped magnet member 5.
Such a blindfold plate 4 covers a part of the inner peripheral side of the ring-shaped magnet member 5 exposed from the hole 25a of the direction key 25, and from the gap between the determination key top 3 and the direction key 25, the ring-shaped magnet member 5 is not visually recognized.

Returning to FIG. 1, the metal dome sheet 14 is formed in a substantially rectangular shape, and the metal dome 14 a having a switching function is replaced with each button 2 c (each button presser 6 c) and the decision key top 3 (key top). It is arranged according to the position with the pusher 11b).
In the metal dome sheet 14, eight sheet escape holes 15 having a rectangular cross section are provided at equal intervals in a circumferential shape so as to surround the determination key top 3. The metal dome sheet 14 is affixed to the flexible substrate 16.

The flexible substrate 16 is formed in a substantially rectangular shape, and a plurality of electronic components are mounted thereon. In this embodiment, the Hall IC 17 that detects the magnetic force acting by the ring-shaped magnet member 5 is mounted on the front case 24 side of the flexible substrate 16. Specifically, four Hall ICs 17 are provided circumferentially at equal intervals so as to surround the decision key top 3.
Further, in this flexible substrate 16, eight substrate escape holes 18 formed in the same size and shape as the sheet escape holes 15 are circumferentially arranged at positions corresponding to the sheet escape holes 15 so as to surround the four hole ICs 17. It is provided at equal intervals. Such a flexible substrate 16 is accommodated and fixed to the front case 24.

The front case 24 is formed by insert-molding the insert sheet metal 19 integrally with a resin.
The insert sheet metal 19 is formed by sheet metal drawing, and includes a key sheet pasting surface 23, a flexible board housing portion 20 that is recessed from the key sheet pasting face 23 and houses the flexible board 16, and the flexible board. Four escape holes 21 formed in the housing part 20 and eight protrusions 22 projecting in a circumferential shape are provided.
Note that the flexible substrate housing portion 20 is not limited to sheet metal, for example, resin molding integrally with the key sheet pasting surface 23 as long as it can accommodate the flexible substrate 16 by providing a step with the key sheet pasting surface 23. It is good also as another structure, such as forming by.

Four escape holes 21 are formed in a circumferential shape corresponding to the positions of the four Hall ICs 17 mounted on the flexible substrate 16 accommodated in the flexible substrate accommodating portion 20, and the Hall ICs 17 are formed as shown in FIG. Contained.
The protrusion 22 is formed in the flexible substrate housing 20 so as to protrude in a substantially orthogonal direction in a circumferential shape so as to surround the four Hall ICs 17. As shown in FIG. 5, the protrusion 22 is inserted through the sheet escape hole 15 and the substrate escape hole 18.
Here, the direction key presser 6 d is provided on the outer peripheral side of the protrusion 22. That is, the outer diameter of the direction key 25 is set larger than the diameter of the circle formed by the eight protrusions 22.
With such a configuration, the flexible substrate 16 is attached to the flexible substrate housing 20.

Next, the operation of the analog pointing key structure A configured as described above will be described with reference to the drawings. FIG. 5 is a cross-sectional view of the analog pointing key structure A at a location different from FIG.
First, as shown in FIG. 5, when the operator applies an appropriate load and slides the determination key top 3 in a direction perpendicular to the thickness direction (a direction along the surface 6a of the key rubber 6) (in FIG. 5). (Changed from (a) to (b)), among the bellows portions 8 of the key rubber 6, the bellows portion 8 in the sliding direction contracts and the bellows portion 8 in the direction opposite to the sliding direction extends. At this time, the ring-shaped magnet member 5 slides in the same direction by the same amount of displacement as the decision key top 3 in conjunction with the decision key top 3 via the stopper plate 10.

  When the ring-shaped magnet member 5 slides, the relative positional relationship between the ring-shaped magnet member 5 and the four Hall ICs 17 (see FIG. 3) changes, and the ring-shaped magnet member 5 overlaps the opposing surfaces of the Hall ICs 17. Since the amount changes, the difference magnetic flux is detected by the four Hall ICs 17 and the position of the decision key top 3 is read. That is, the Hall IC 17 supplies the magnetic flux density based on the position of the ring-shaped magnet member 5 to the flexible substrate 16 as a detection signal.

  When the decision key top 3 is further slid in the same direction, the peripheral edge of the stopper plate 10 abuts against the projection 22, and the projection 22 limits the movable range of the decision key top 3. Also at this time, the Hall IC 17 continues to supply a detection signal corresponding to the amount of displacement to the flexible substrate 16. Even if the determination key top 3 is slid to the position where the peripheral edge of the stopper plate 10 abuts against the protrusion 22, the ring-shaped magnet member 5 is covered with the blindfold plate 4 and is not visible from above.

  When the operator removes the load due to the slide movement, the deformation of the bellows part 8 is restored by the return elastic force of the bellows part 8, and the position of the decision key top 3 is returned to the reference position.

On the other hand, when the operator pushes the decision key top 3 in the thickness direction, the peripheral edge of the peeling prevention plate attaching portion 7 and the spring portion 12 are bent in the thickness direction, and the decision key presser 11b is displaced in the thickness direction. . At this time, this pushing operation is performed well without affecting the click feeling.
When the metal dome sheet 14 detects the displacement of the determination key presser 11b, the metal dome sheet 14 supplies a pressing signal to the flexible substrate 16.

  When the operator stops the pushing operation, the return elastic force of the spring portion 12 quickly eliminates the displacement of the decision key top 3 and returns to the reference position. When the operator slides the determination key top 3 again in the same manner as described above with the displacement in the thickness direction of the determination key top 3 eliminated, the displacement in the thickness direction of the determination key top 3 is eliminated. The key top pusher 11b of the decision key top 3 does not interfere with the metal dome sheet with the slide operation.

As described above, according to the analog pointing key structure A according to the present invention, since the peeling prevention plate 26 is provided, even if the user operates the determination key top 3 with a strong force, the determination key top 3 It can be prevented from being peeled off, and the durability of the product provided with the analog pointing key structure A can be enhanced.
Moreover, since the gap between the decision key top 3 and the magnet concealment plate 4 can be hidden by the peeling prevention plate 26, the appearance of the product can be improved.

Further, the outer diameter of the direction key 25 is set to be larger than the diameter of the circle formed by the eight protrusions 22, and the direction key is usually pressed at a position corresponding to the outer peripheral edge of the direction key 25 in the key rubber 6. A child 6d is formed. Moreover, since the stopper plate 10 is structured to be movable inside the protrusion 22 of the insert metal plate 19, the metal dome 14a for the direction key 25 and the direction key presser 6d cannot be arranged inside the protrusion 22. These need to be arranged outside the protrusion 22 of the insert metal plate 19. As a result, the outer diameter of the direction key 25 becomes larger than that of a general sheet type key, and the area of the surrounding key is reduced accordingly.
On the other hand, since the direction key 25 is formed of a thin and highly rigid metal material, the direction key 25 itself can be prevented from being bent when the key is pressed. The key click of the direction key 25 can be achieved without disposing it at a position corresponding to the outer peripheral portion 25b. Since the deflection of the direction key 25 can be prevented in this way, the degree of freedom of the position of the pusher of the direction key 25 is increased, and the direction key 25 can be reduced in diameter.

  Further, according to the analog pointing key structure A, the stopper plate 10 is provided, and even if the decision key top 3 is pushed in, even if the decision is made to stop, the displacement of the decision key top 3 is quickly eliminated, and the reference key position is immediately set. Return. Then, the next push-in operation or slide operation is performed immediately.

In addition, since the pressing operation of the decision key top 3 can be defined by the stopper plate 10 as well as the key rubber 6, the displacement caused by the pushing operation on the decision key top 3 can be immediately restored.
Further, since the positional relationship between the decision key top 3 and the ring-shaped magnet member 5 in the sliding direction is defined, when the decision key top 3 is slid, the ring-shaped magnet member 5 is also slid with the same displacement amount, and the ring-shaped magnet member The reactivity of 5 can be improved.

In the case where the key rubber 6 is in contact with the protrusion 22 and restricts the movable range in the direction along the surface 6a of the key rubber 6, the movable range of the decision key top 3 is adjusted, and the slide operation of the decision key top 3 is performed. As a result, no load is generated on the key rubber 6, so that the movable range can be set so as to conform to good operability, and deterioration in operability due to deterioration of the key rubber 6 can be prevented.
Further, in the case where the blind plate 4 is provided, the ring-shaped magnet member is not exposed from the through-hole of the key unit even if the decision key top 3 is slid in the direction along the surface of the key rubber 6, so that dust or the like is removed from the ring-shaped magnet. It is possible to prevent the operability from being deteriorated due to adsorption to the member.

  Further, since the determination key top 3 and the ring-shaped magnet member 5 are arranged so as not to overlap each other in the thickness direction of the key rubber 6, the design freedom can be improved and the thickness can be reduced.

  Further, in the case where the Hall IC 17 is arranged on the flexible substrate 16 so as not to overlap the decision key top 3 in the thickness direction, the Hall IC 17 and the decision key top 3 do not overlap in the thickness direction of the key rubber 6. Therefore, it is possible to further reduce the thickness by improving the degree of freedom in design while maintaining good operability.

Further, in the case where the Hall IC 17 is accommodated in the escape hole 21, the Hall IC 17 is accommodated in the magnetic sensor escape hole 21, so that the thickness can be further reduced.
Accordingly, it is possible to provide a thin analog pointing key structure A that has good operability and excellent practicality.

Note that the operation procedure shown in the above-described embodiment, various shapes and combinations of the constituent members, and the like are examples, and various modifications can be made based on design requirements and the like without departing from the gist of the present invention.
For example, in the above-described embodiment, the shape of the decision key top 3 is a substantially disk shape, but may be another shape. Further, the material is not limited to hard resin, and may be made of metal or the like.

  In the embodiment described above, the Hall IC 17 is used as the magnetic sensor. However, a Hall element, a magnetoresistive effect element, a magnetoresistive effect IC, or the like may be used.

Here, each component is fixed using an adhesive, a double-sided adhesive tape, or the like. However, spot welding between metals, threading to a metal object, and fixing with a screw may be used.
Further, the protrusion 22 that regulates the operating range of the stopper plate 10 is formed of a sheet metal inserted into the front case 24. However, when a housing without a sheet metal is used, the protrusion is formed on the flexible substrate 16. By providing a protrusion exhibiting a function equivalent to that of the sheet 22, it is possible to replace the sheet metal cutting protrusion.
In addition to this, the configuration described in the above embodiment can be selected or changed to another configuration as appropriate without departing from the gist of the present invention.

According to the present invention, the key top support plate prevents the first rigid key top from falling off the hole of the blindfold plate, thereby preventing the first rigid key top from being peeled off. The durability of the product to which the analog pointing key structure is applied can be enhanced.
In addition, since a part of the operation of the rigid key top can be defined not only by the support member but also by the elastic member, the displacement due to the pushing operation to the rigid key top can be immediately restored, or the rigid key top and the ring-shaped magnet can be restored. The positional relationship with the member can be defined.
Therefore, it is possible to provide an analog pointing key structure with good operability and excellent practicality.

1 Key sheet 2 Key unit 2a Circular hole (through hole)
3 Decision key top (first rigid key top)
4 Blindfold plate 5 Ring-shaped magnet member 6 Key rubber (support member)
7 Peeling prevention plate sticking part 8 Bellows part (elastic return part)
10 Stopper plate (elastic member)
16 Flexible substrate (substrate)
17 Hall IC (magnetic sensor)
22 Protruding part 24 Front case 25 Direction key 25a Hole 25b Outer peripheral part 26 Peeling prevention plate 27 Direction key sticking part A Analog pointing key structure

Claims (6)

The first rigid key top,
A surrounding member provided so as to surround the first rigid key top and having a hole exposing the first rigid key top;
A support member to which the first rigid key top is fixed to a surface, wherein the first rigid key top is at least partially surrounding the first rigid key top in a direction along the surface of the first rigid key top; A support member provided with an elastic return portion which allows the first rigid key top to be displaced and which can restore the displacement;
It is arranged on the back side of the surrounding member, is fixed to the support member and surrounds the first rigid key top, and at least a part thereof is between the first rigid key top and the elastic return portion. A ring-shaped magnet member located;
A magnetic sensor for detecting a change in magnetic flux density due to a displacement of the ring-shaped magnet member interlocked with the first rigid key top;
An annular blind plate provided on the surface of the ring-shaped magnet member, the inner periphery of which is located inside the hole of the surrounding member;
The first rigid key top is joined to the surface, the outer peripheral portion thereof is located on the back side of the blindfold plate, and a keytop support plate having an outer diameter larger than the inner diameter of the blindfold plate,
An elastic member fixed to the back surface of the support member, allowing the first rigid key top to be displaced in the thickness direction of the support member, and restoring the displacement;
An analog pointing key structure with
An analog pointing key structure, wherein the magnetic sensor is accommodated in a relief hole of an insert sheet metal that accommodates a flexible substrate.   2. The analog pointing key structure according to claim 1, wherein the key top support plate together with the blindfold plate closes a gap between the first rigid key top and the hole of the surrounding member. The surrounding member is a second rigid key top provided to surround the first rigid key top;
The second rigid key top allows the second rigid key top to be displaced in a direction orthogonal to the surface of the second rigid key top by the support member, and can restore the displacement. The analog pointing key structure according to claim 1, wherein:   The analog pointing key structure according to claim 3, wherein the second rigid key top is made of metal.   4. The analog pointing according to claim 3, wherein the support member is made of a rubber-based material, and rubber hardness is different at least between the elastic return portion and the portion supporting the second rigid key top. Key structure. A protrusion that restricts deformation of the elastic return portion when the first rigid key top is displaced in a direction along the surface of the first rigid key top;
A substrate on which the magnetic sensor is mounted;
Further comprising
The analog pointing key structure according to claim 1, wherein the protrusion is provided on the substrate.

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