JP2019028729A - Response force generation device - Google Patents

Abstract

To provide a response force generation device capable of driving an object to be operated with a large acceleration by a response force imparting mechanism having a magnetic drive part.SOLUTION: In a moving direction regulation part 20, bearing members 22a and 22b for supporting a shaft member 21 are fixed to an operation object member 5 and stationary brackets 23a and 23b fixed to both ends of the shaft member 21 are supported by a support base 3 via an elastic interposed member 31. When a response force is applied from a response force imparting mechanism 60 to the operation object member 5, the operation object member 5 can move only in a X1-X2 direction and, as a result, a large acceleration force can be applied to an operator's finger from the operation object member 5.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a response force generator that can efficiently apply a response force from a response force application mechanism to an operation target member when an operation unit provided on the operation target member is operated with a finger or the like.

  In a vehicle-mounted display device equipped with a response force generator, an operation target member is supported on a base via an elastic support portion, and the operation target member is touched on a display panel and a display screen of the display panel. And a sensor. The operation target member is provided with a response force applying mechanism. When it is detected that the display screen is operated by the touch sensor, a single response force or a response force due to vibration is applied from the response force applying mechanism to the operation target member. Given, the operator's finger can feel the response.

  However, in the conventional response force generator, when the response force is applied from the response force applying mechanism to the operation target member, the operation target member supported by the elastic support member moves in a direction other than the direction in which the response force is applied. As a result, there is a problem that the response force cannot be effectively transmitted to the operator's finger.

  Therefore, in the double rigid suspension system described in Patent Document 1, the actuator is fixed to the touch screen, and the post is fixed to the lower surface side of the touch screen, and the post is inserted into the lumen of the housing component. The touch screen is supported so as to be movable only in the Z direction perpendicular to the surface (XY plane). A first member formed of an elastomer material is interposed between the touch screen and the housing component, and a second member formed of an elastomer material is interposed between the tip of the post and the housing component. doing.

  This dual-rigid suspension system makes it easier for the operator to feel the tactile feedback generated by the actuator because the touch screen moves only in the Z direction, and the touch screen moves only in the Z direction. The user can feel as if the touch screen is firmly attached to the housing.

JP2015-103255A

  However, as described in Patent Document 1, a structure in which the tactile feedback generated by the actuator acts on the touch screen only in the Z direction is not necessarily appropriate as a tactile feedback providing unit. For example, in the case of an in-vehicle display device, the vibration direction of the vehicle body tends to greatly affect the Z direction orthogonal to the display screen. Therefore, when tactile feedback is given only to the touch screen in the Z direction, the operator may not be able to feel the response force efficiently.

  Further, the double rigid suspension system described in Patent Document 1 is such that both the direction in which the touch screen moves when the touch screen is pressed and the direction of action of the response force applied to the touch screen by tactile feedback are in the Z direction. is there. Therefore, for example, when the rigidity of the first member and the second member that elastically support the touch screen is increased in order to make the operator feel tactile feedback strongly, the touch screen can be displayed when the operator performs a pressing operation. Cannot be moved in the Z direction with an appropriate force. In other words, it is not possible to set the operation reaction force felt by the operator's finger when the operator presses the touch screen in the Z direction and the strength of the tactile sensation feedback given to the touch screen individually to be optimum.

  The present invention solves the above-described conventional problems, and can efficiently apply a response force to the operation target member from the response force applying mechanism, and further, an operation reaction force when the operation target member is pressed. It is an object of the present invention to provide a response force generator capable of individually setting the response force intensity to be optimal.

The present invention includes a base, an operation target member at least a part of which is an operation unit, an operation detection unit that detects that the operation unit is operated, and a response force imparting response force to the operation target member A response force generator having a mechanism;
An elastic support part that supports the operation target member on the base and a movement direction restriction part that restricts the movement direction of the operation target member with respect to the base are provided,
The operation target member is supported by the elastic support portion so as to be movable in at least the facing direction of the base and the operation target member, and the movement direction restricting portion causes the movement direction of the operation target member to be the opposite direction. Restricted to one direction along the plane that intersects the direction,
A response force in the one direction is applied from the response force applying mechanism to the operation target member.

In the response force generator of the present invention, the movement direction restricting portion includes a shaft member, and a bearing member through which the shaft member is slidably inserted.
One of the fixing bracket for fixing the shaft member and the bearing member is fixed to the operation target member, and the elastic support portion is provided between the other and the base.

  In the response force generator of the present invention, for example, the elastic support member is provided with an elastic interposition member sandwiched between the fixed bracket or the bearing member and the base.

  The response force generator according to the present invention includes a regulation support member formed of a plate material that can be elastically deformed, and the regulation support member includes a fixing portion to which the fixing bracket or the bearing member is fixed, and the fixing portion. It is preferable that an elastic arm portion that extends in two directions along the surface and bends in the opposite direction is integrally formed, and each of the elastic arm portions is fixed to the base.

  In this case, it is preferable that the elastic arm portion can be fixed to the base by adjusting the position in the direction along the surface.

  In the response force generator according to the present invention, the fixing bracket or the bearing member is provided with an adjusting portion, and the adjusting portion appears on a back portion of the base opposite to the side facing the operation target member. And it can comprise so that the fixed position of the said control support member and the said base can be adjusted to the direction along the said surface by moving the said adjustment part.

  In the response force generator of the present invention, an elastic insertion member is provided between the fixed bracket and the bearing member, and the force required to move the operation target member in the one direction with respect to the base. However, it can be configured as determined by the elastic coefficient of the elastic insertion member.

  In the response force generation device according to the present invention, the force required to move the operation target member in the opposite direction relative to the base moves the operation target member in the one direction relative to the base. It is preferable that the force is smaller than the force required for.

  In the response force generation device of the present invention, the fixed bracket and the bearing member are arranged with a space in the one direction, and a support span of the shaft member at the bearing member is the response force applying mechanism. It is preferable that it is longer than the distance in the direction along the said surface with the said shaft member.

  The response force generation device of the present invention is supported so that the operation target member moves only in one direction along a plane intersecting the opposing direction with respect to the base, and the response force applying mechanism is configured to A response force in one direction is given. Therefore, bidirectional response force can be reliably given to the surface for the operator who operates the operation unit of the operation target member, and the operator can easily recognize the response force.

  In addition, it is possible to individually set the operation reaction force felt by the operator during the pressing operation and the strength of the one-way response force applied to the operator so as to be individually optimized.

The perspective view which looked at the response power generating device of an embodiment of the invention from the front of an operation object member, FIG. 1 is an exploded perspective view showing a state in which a part of a support base and a member to be operated are removed from the support base in the response force generator shown in FIG. The perspective view which looked at the response power generating device of an embodiment of the invention from the back of the base, FIG. 4 is an exploded perspective view showing a state in which a part of the support base and the operation target member are removed from the support base in the response force generator shown in FIG. FIG. 4 is an enlarged partial exploded perspective view showing a part of the exploded perspective view equivalent to FIG. A perspective view of a part of the support base, the operation target member, and the response force application mechanism as seen from the rear, The partial expanded sectional view which cut | disconnected the response force generator shown in FIG. 2 with the VII-VII line, The partial expanded sectional view which cut | disconnected the response force generator shown in FIG. 6 with the VIII-VIII line, The partial expanded sectional view which cut | disconnected a part of response force generator shown in FIG. 3 with the IX-IX line,

  1 to 4 show the overall structure of a response force generator 1 according to an embodiment of the present invention. The responsive force generator 1 of the embodiment is used as an in-vehicle display device. In the response force generator 1, the Z1 direction is the front and the Z2 direction is the rear. When used as an in-vehicle display device, the Z1 direction is directed toward the vehicle interior and the Z2 direction is directed forward in the traveling direction of the vehicle. The X1 direction is the left direction, the X2 direction is the right direction, and the Y direction is the vertical direction.

  The response force generator 1 has a base 2. The base 2 is made of a synthetic resin material or a light metal material. The base 2 has a support base 3 and a fixed base 4. The fixed base 4 is fixed to the interior or surface of a dashboard or instrument panel in front of the vehicle interior. The support base 3 and the fixed base 4 are connected via a rotation shaft (not shown) parallel to the X1-X2 direction, and the support base 3 uses the rotation shaft as a fulcrum as a fixed base. 4 is rotatable in the front-rear direction (Z1-Z2 direction).

  Further, the support base 3 can be separated into a front frame 3a and a rear support 3b. 2 and 4 show the front frame 3a and the rear support 3b separately. As shown in FIGS. 1 and 3, when the response force generator 1 is assembled, the front frame 3a is positioned in the X direction and the Y direction in front of the rear support 3b. They are fixed to each other by a stopping means or an uneven fitting structure.

  As shown in FIG. 2 and FIG. 4, the front frame 3a, which is a part of the base 2, has a support space 3c at the center excluding the surrounding frame structure, and the inside of the support space 3c. The operation target member 5 is disposed in the area. As shown in FIG. 4, the operation target member 5 includes a display substrate 6 that is directed rearward (Z2 direction) in the support space 3c, and a display panel that is fixed to the front side (Z1 side) of the display substrate 6. 7. The display panel 7 is a color liquid crystal display panel or an electroluminescence display panel, and a front surface facing the Z1 side of the display panel 7 is a display screen 8. As shown in FIGS. 1 and 2, a slight gap δ is formed between the inner edge of the front frame 3 a and the peripheral edge of the front surface of the operation target member 5.

  The display screen 8 is an operation unit having a transparent touch sensor. The touch sensor is a capacitive sensor configured by providing a plurality of transparent electrodes on a transparent substrate. When the operator's finger touches the display screen 8, the capacitance detected by the electrode changes, and the coordinate position touched by the finger is detected by the change in the distribution of capacitance at this time. Alternatively, the touch sensor is a resistance sensor in which a transparent film having a transparent electrode formed on the entire surface thereof is superimposed on a transparent substrate having a transparent electrode formed on the entire surface. When any part of the transparent film is pressed, the resistance sensor short-circuits the transparent electrode formed on the transparent film and the transparent electrode formed on the transparent substrate, and the electrode provided on the edge of the transparent electrode The change of the resistance value from the part to the short-circuit part is detected, and the coordinate position touched by the finger is determined.

  As shown in FIGS. 1 and 3, when the support base 3 is assembled, the operation target member 5 is located in front of the support plate portion 3d formed in the rear support 3b shown in FIG. 2 (Z1 direction). Opposite. Therefore, the Z1-Z2 direction is a facing direction in which the operation target member 5 and the base 2 are opposed to each other in the front-rear direction, and a plane parallel to the XY plane is a plane intersecting (orthogonal) with the facing direction. The support plate 3d and the display substrate 6 provided on the operation target member 5 are arranged in parallel with the plane.

  As shown in FIGS. 2 and 4, the coupling mechanism 10 is provided between the support plate portion 3 d of the rear support 3 b constituting the base 2 and the display substrate 6 provided on the back portion of the operation target member 5. Is provided. The coupling mechanism 10 includes a movement direction restricting portion 20, an elastic support portion 30a positioned between the movement direction restricting portion 20 and the support plate portion 3d on the X1 side, and a movement direction restricting portion 20 and the support plate portion 3d on the X2 side. And an elastic support portion 30b positioned between the two.

  As shown in FIGS. 4, 5, 6, and 8, the movement direction restricting portion 20 has a shaft member 21. The shaft member 21 extends in the X1-X2 direction, which is one direction in a plane parallel to the XY plane orthogonal to the facing direction (Z1-Z2 direction). The shaft member 21 is slidably inserted in the X direction through a bearing member 22a located on the X1 side and a bearing member 22b located on the X2 side. An end portion on the X1 side of the shaft member 21 is held and fixed to the fixing bracket 23a, and an end portion on the X2 side of the shaft member 21 is held and fixed to the fixing bracket 23b.

  As shown in the sectional view of FIG. 8, an elastic insertion member 24b is interposed between the bearing member 22b on the X2 side and the fixing bracket 23b, and the shaft member 21 is inserted into the central hole of the elastic insertion member 24b. Similarly, an elastic insertion member 24a is interposed between the bearing member 22a on the X1 side and the fixed bracket 23a, and the shaft member 21 is inserted into the center hole of the elastic insertion member 24a.

  A washer 25 is fitted to the shaft member 21 on the X2 side, and the compression coil spring 26 is compressed between the washer 25 and the X2 side bearing member 22b on the outer peripheral side of the shaft member 21. Is intervening. The X2 side bearing member 22b and the elastic insertion member 24b are pressed against the fixed bracket 23b by the compression coil spring 26.

  As shown in FIGS. 4, 5, and 6, each of the bearing members 22 a and 22 b is fixed to the display substrate 6 provided on the back portion of the operation target member 5 by a fixing screw 27. On the X2 side, the bearing member 22b and the fixed bracket 23b are pressed against each other by the compression coil spring 26, but the X1 side bearing member 22a is pressed against the elastic insertion member 24a in the axial direction (X1 direction). In this state, the two bearing members 22 a and 22 b are fixed to the display substrate 6. As a result, the shaft member 21 and the fixing brackets 23 a and 23 b at both ends thereof can be assembled to the back surface of the display substrate 6 without causing backlash in the axial direction between the display substrate 6 and the shaft member 21.

  As shown in FIGS. 4 and 6, a tension coil spring 28 extending in the Y direction is hung between the shaft member 21 and the display substrate 6 in a state where an initial extension is applied. Due to the elastic force of the tension coil spring 28, the occurrence of rattling in the Y direction between the shaft member 21 and the operation target member 5 is also eliminated.

  The resistance force when the shaft member 21 is moved relative to the operation target member 5 in the X1-X2 direction is determined by the elastic coefficient at the time of compressive deformation of the elastic insertion members 24a and 24b. The elastic insertion members 24a and 24b are made of a rubber material having a slightly high rigidity, and a relatively large force is required to move the shaft member 21 in the X1-X2 direction with respect to the display substrate 6.

  As shown in FIGS. 5 and 7, the elastic support portion 30b provided on the X2 side includes an elastic interposing member 31 provided between the fixing bracket 23b and the support plate portion 3d of the rear support 3b, and a support member. An insertion hole 32 that opens to the plate portion 3d and an adjustment screw 33 are provided. As shown in FIG. 7, the adjusting screw 33 includes an adjusting portion 33a positioned on the X2 side, a step portion 33b formed in the middle of the shaft portion extending from the adjusting portion 33a in the Z1 direction, and the step portion 33b in the Z1 direction. A small-diameter shaft portion 33c that extends in the vertical direction and a male screw portion 33d that is formed at the tip of the small-diameter shaft portion 33c on the Z1 side. In addition, a jig operating portion 33e having a shape released in the Z2 direction is formed in the adjusting portion 33a.

  As shown in FIG. 7, a part of the elastic intervention member 31 is sandwiched between the support plate part 3 d of the rear support 3 b and the fixing bracket 23 b, and the other part is fitted inside the insertion hole 32. It is worn. The adjustment screw 33 is inserted into the insertion hole 32 from the Z2 side, and is inserted into the center hole of the elastic intervention member 31, but the center hole of the elastic intervention member 31 and the shaft portion of the adjustment screw 33 are arranged. An adjustment gap G1 is formed between them. Within the range of the adjustment gap G1, the adjustment screw 33 and the fixing bracket 23b can be slightly moved in a plane parallel to the XY plane with respect to the support plate portion 3d of the rear support 3b.

  Similarly, the elastic support member 30a provided on the X1 side has an elastic interposing member 31, an insertion hole 32, and an adjusting screw 33, and the structure thereof is the same as that of the elastic support member 30b provided on the X2 side. It is.

  As shown in FIGS. 2, 4, 5, and 6, the coupling mechanism 10 includes a regulation support member 40 a on the X1 side and a regulation support member 40 b on the X2 side. The restricting support members 40a and 40b are provided at two locations with an interval in the X1-X2 direction that is one direction along the XY plane intersecting (orthogonal) with the facing direction (Z1-Z2 direction). .

  The regulation support members 40a and 40b are formed of an elastically deformable metal plate (leaf spring material). The restriction support member 40a on the X1 side is provided with a fixing portion 41a, and the restriction support member 40b on the X2 side is provided with a fixing portion 41b. Each of the regulation support members 40a and 40b is integrally formed with elastic arm portions 42x and 42y extending in two directions from the fixing portions 41a and 41b. The elastic arm portion 42x and the elastic arm portion 42y extend in directions orthogonal to each other. The elastic arm portion 42x extends in the X direction, and the elastic arm portion 42y extends in the Y direction.

  The fixing bracket 23a is fixed to the fixing portion 41a of the restriction support member 40a by the fixing screw 36, and the fixing bracket 23b is also fixed to the fixing portion 41b of the restriction support member 40b. As shown in FIG. 2, a female screw hole 43 is formed in the central portion of the fixing portions 41a and 41b.

  As shown in FIG. 7, in the relationship between the elastic support portion 30b on the X2 side and the restriction support member 40b, the adjustment screw 33 is inserted into the insertion hole 32 and the center hole of the elastic interposing member 31 from the Z2 side. The step portion 33b is abutted against the fixed bracket 23b. In this state, the small-diameter shaft portion 33c of the adjusting screw 33 is inserted into the insertion hole 29 formed in the fixing bracket 23b, and the male screw portion 33d at the tip of the small-diameter shaft portion 33c is formed in the fixing portion 41b of the regulation support member 40b. The female screw hole 43 is screwed. By firmly tightening the adjustment screw 33, the fixing bracket 23b, the adjustment screw 33, and the fixing portion 41b of the restriction support member 40b are fixed integrally. This also applies to the relationship between the fixing bracket 23a provided on the X1 side, the regulation support member 40a, and the adjustment screw 33.

  The regulation support member 40a provided on the X1 side and the regulation support member 40b provided on the X2 side are fixed to the support plate part 3d by the fixing mechanism 45 at the distal end portions of the respective elastic arm portions 42x, and the respective elastic arm portions 42x are elastic. The distal end portion of the arm portion 42y is fixed to the support plate portion 3d by the fixing mechanism 46. FIG. 5 shows the members constituting the fixing mechanism 45 and the fixing mechanism 46 in an exploded manner, and FIG. 7 shows the structure of the fixing mechanism 46 in an enlarged sectional view. As shown in FIG. 5, the fixing mechanism 45 includes a mounting hole 45b that opens to the support plate portion 3d of the support base 3, a female screw hole 45c formed at the tip of the elastic arm portion 42x, and a fixing screw 45a. It is configured. The fixing mechanism 46 includes a mounting hole 46b that opens to the support plate portion 3d of the support base 3, a female screw hole 46c formed at the tip of the elastic arm portion 42y, and a fixing screw 46a.

  As shown in FIG. 7, in the fixing mechanism 46, the fixing screw 46a is inserted into the mounting hole 46b from the Z2 side, and the male screw portion 46d at the tip of the fixing screw 46a is screwed into the female screw hole 46c of the elastic arm portion 42y. It is worn. An adjustment gap G2 is formed between the shaft portion of the fixing screw 46a and the inner surface of the mounting hole 46b. Also in the fixing mechanism 45, the fixing screw 45a is inserted into the mounting hole 45b from the Z2 side, and the male screw portion at the tip of the fixing screw 45a is screwed into the female screw hole 45c of the elastic arm portion 42x. An adjustment gap G2 equivalent to the fixing mechanism 46 is also formed between the shaft portion of the fixing screw 45a and the inner surface of the mounting hole 45b. In addition, a fixing mechanism 45 and a fixing mechanism 46 having the same structure are also provided in the restriction support member 40b on the X1 side.

  As shown in FIG. 7, an adjustment gap G <b> 1 is formed in the elastic support portions 30 a and 30 b that support the fixing brackets 23 a and 23 b on the support base 3, and the adjustment support members 40 a and 40 b are fixed to the support base 3. The adjustment gap G2 is also formed in the fixing mechanisms 45 and 46 for the purpose. Therefore, it is possible to adjust the relative positions of the fixing brackets 23a and 23b and the regulation support members 40a and 40b with respect to the support plate portion 3d of the support base 3 along a plane parallel to the XY plane.

  As shown in FIGS. 2 and 3, between the support base 3 and the operation target member 5, an auxiliary elastic support portion 50 is provided at a position away from the X1 side and the X2 side in the upper part of the drawing. FIG. 9 shows a cross-sectional view of the auxiliary elastic support portion 50.

  As shown in FIG. 9, in the auxiliary elastic support portion 50, a boss 54 is fixed to the back surface of the display substrate 6 of the operation target member 5. A female screw hole 54 a is formed in the boss 54. The auxiliary elastic support portion 50 includes an elastic interposing member 51 provided between the boss 54 and the support plate portion 3d, an insertion hole 52 opened to the support plate portion 3d, and a support screw 53. . The support screw 53 has an adjustment portion 53a located on the X2 side, a step portion 53b formed in the middle of the shaft portion extending from the adjustment portion 53a in the Z1 direction, and a male screw portion 53c extending in the Z1 direction from the step portion 53b. doing. Further, a jig operating portion 53e having a shape released toward the Z2 direction is formed in the adjusting portion 53a.

  In the auxiliary elastic support portion 50, the support screw 53 is inserted into the insertion hole 52 and the center hole of the elastic intervention member 51 from the Z <b> 2 side, and the stepped portion 53 b of the support screw 53 is abutted against the boss 54. In this state, the male screw portion 53 c extending from the stepped portion 53 b of the support screw 53 to the Z1 side is screwed into the female screw hole 54 a of the boss 54. By strongly tightening the support screw 53, the display substrate 6 of the operation target member 5 and the support screw 53 are fixed integrally. In addition, an adjustment gap G <b> 3 is formed between the center hole of the elastic intervention member 51 and the shaft portion of the support screw 53.

  As shown in FIGS. 2, 4, and 5, in the coupling mechanism 10, the fixing brackets 23 a and 23 b and the shaft member 21 are supported by the operation target member 5 via bearing members 22 a and 22 b. As shown in FIG. 7, in the elastic support portions 30a and 30b, an elastic interposing member 31 is interposed between the fixing brackets 23a and 23b and the support plate portion 3d. The fixed brackets 23a and 23b are also supported by the support plate portion 3d by the regulation support members 40a and 40b. Furthermore, as shown in FIG. 9, in the auxiliary elastic support portion 50, an elastic intervention member 51 is interposed between the boss 54 and the support plate portion 3d.

  With such a support structure, when the operation target member 5 is pushed in the Z2 direction, the elastic interposing member 31 and the elastic interposing member 51 are compressed and deformed, and the elastic arm portions 42x and 42y of the restricting supporting members 40a and 40b are bent. Due to the deformation, the operation target member 5 can move in the Z2 direction so as to approach the support plate portion 3d. At this time, the operation reaction force in the Z1 direction acts on the operation target member 5 by the elastic repulsion force due to the contraction deformation of the elastic intervention members 31 and 51 and the elastic reaction force due to the bending deformation of the elastic arm portions 42x and 42y. . The force required to bring the operation target member 5 closer to the support plate portion 3d is determined by the elastic coefficients of the elastic intervention members 31, 51 and the spring constants of the elastic arm portions 42x, 42y.

  The force required to move the operation target member 5 in the X1-X2 direction with respect to the support base 3 is elastic insertion members 24a interposed between the fixing brackets 23a, 23b and the bearing members 22a, 22b. It is determined by the elastic coefficient of 24b. The force required to move the operation target member 5 in the Z2 direction is preferably smaller than the force required to move the operation target member 5 relative to the support base 3 in the X1-X2 direction.

  As shown in FIGS. 4 and 6, the response force generator 1 is provided with a response force applying mechanism 60. The response force application mechanism 60 includes a mechanism main body 61 and a response force transmission plate 62. The mechanism main body 61 is housed and fixed inside the fixed base 4. The response force transmission plate 62 can be bent and deformed, and an upper end portion thereof is fixed to the display substrate 6 by a fixing screw 63.

  The mechanism main body 61 of the response force applying mechanism 60 is provided with a movable part made of a magnetic material having a predetermined mass inside the box, and the movable part is supported in the box so as to be movable in the X1-X2 direction by a spring. Has been. A coil is wound around the movable part, and a magnet facing the movable part is provided inside the box. When the coil is energized, the movable part is magnetized, and the movable part is driven in the X1-X2 direction by the attractive force and the repulsive force due to the polarity due to the magnetization and the polarity of the magnet. A force when the movable portion is driven or a reaction force of the force is transmitted to the response force transmission plate 62, and a response force in the X1-X2 direction is applied to the operation target member 5.

  In addition, as a structure of the mechanism main body 61 of the response force applying mechanism 60, a rotor with a mass deviated is fixed to the output shaft of the motor, and vibration in the X1-X2 direction occurs near the rotation of the motor. It may be a thing.

  As shown in FIG. 2, the operation detection parts 65 and 65 are provided in the surface which faces the Z1 side of the support plate part 3d of the back support body 3b. The operation detection units 65 and 65 are force sensors. When the operation target member 5 is pushed and moved in the Z2 direction, the force sensor is operated and a detection output is obtained. When the area of the finger touching is detected by the touch sensor provided on the display screen 8 without using a force sensor or the like as the operation detection unit, and the detection area becomes larger than the threshold value In addition, it may be detected that the operation target member 5 has been pressed in the Z2 direction.

Next, an operation of positioning and attaching the operation target member 5 to the support base 3 will be described.
In the coupling mechanism 10, the shaft member 21 is inserted into the pair of bearing members 22a and 22b, and at this time, the washer 25 and the compression coil spring 26 are attached. Elastic insertion members 24 a and 24 b are inserted into both ends of the shaft member 21, and fixing brackets 23 a and 23 b are fixed to both ends of the shaft member 21. Then, the fixing brackets 23 a and 23 b and the regulation support members 40 a and 40 b are fixed with the fixing screw 36. The bearing members 22a and 22b are fixed to the display substrate 6 of the operation target member 5 by the fixing screws 27 in a state where the bearing member 22a on the X1 side is pressed against the elastic insertion member 24a in the X1 direction. In addition, a tension coil spring 28 is mounted between the shaft member 21 and the display substrate 6.

  In the support base 3, the operation target member 5 is installed in front of the support plate portion 3d of the rear support 3b with the front frame 3a removed from the rear support 3b. At this time, as shown in FIG. 7, in the elastic support portions 30a and 30b, an elastic interposing member 31 is interposed between the fixing brackets 23a and 23b and the support plate portion 3d. Then, the adjusting screw 33 is inserted from the Z2 side of the rear support 3b into the center hole of the elastic intervention member 31 and the inside of the insertion hole 29 formed in the fixing brackets 23a and 23b. The portion 33d is screwed into the female screw hole 43 formed in the fixing portions 41a and 41b of the regulation support members 40a and 40b. At this time, the elastic intervention member 31 is slightly compressed between the fixing brackets 23a and 23b and the support plate portion 3d.

  As shown in FIG. 9, in the auxiliary elastic support portion 50, an elastic interposed member 51 is interposed between the boss 54 fixed to the display substrate 6 of the operation target member 5 and the support plate portion 3d, and from the Z2 side. The support screw 53 is inserted into the center hole of the elastic intervention member 51, and the male screw portion 53 c ahead of the stepped portion 53 b of the support screw 53 is screwed into the female screw hole 54 a formed in the boss 54. Also at this time, the elastic intervention member 51 is slightly compressed between the boss 54 and the support plate portion 3d.

Further, as shown in FIG. 7, in the fixing mechanism 46, the fixing screw 46b is inserted into the mounting hole 46b formed in the support plate portion 3d from the Z2 side, and the male screw portion of the fixing screw 46b is connected to the regulating support member 40a, It is screwed into a female screw hole 46c formed at the tip of the elastic arm portion 42y of 40b. Also in the fixing mechanism 45, the fixing screw 45a is inserted into the mounting hole 45b formed in the support plate portion 3d from the Z2 side, and the male screw portion of the fixing screw 45a is inserted into the female screw hole formed in the tip portion of the elastic arm portion 42x. Screw into 45c.
Thereafter, the front frame 3a of the support base 3 is combined and fixed in front of the rear support 3b.

  In the X1-side fixing mechanisms 45, 46 and the X2-side fixing mechanisms 45, 46, the fixing screws 45a, 46a are not completely tightened. Then, as shown in FIG. 3, in the elastic support portions 30a and 30b, a jig operation portion 33e that opens to the adjustment portion 33a of the adjustment screw 33 that appears on the back portion of the support base 3, and an auxiliary elastic support portion. 50, a jig is inserted into the jig operation portion 53e formed in the adjustment portion 53a of the support screw 53, and the adjustment screw is within the range of the adjustment gaps G1 and G2 shown in FIG. 7 and the adjustment gap G3 shown in FIG. At least one of 33 and the support screw 53 is moved in a plane parallel to the XY plane.

  With this adjustment, as shown in FIGS. 1 and 2, the gap δ between the inner edge of the front frame 3a and the peripheral edge of the front surface of the operation target member 5 is at the top and bottom of the X1, X2, and Y sides. It can be set to be uniform. After the adjustment is completed, the fixing screw 46a of the fixing mechanism 46 provided on the X1 side and the X2 side is tightened to fix the tip portion of the elastic arm portion 42y shown in FIG. 7 to the inner surface of the support plate portion 3d. Similarly, the fixing screw 45a of the fixing mechanism 45 provided on the X1 side and the X2 side is tightened to fix the tip portion of the elastic arm portion 42x to the inner surface of the support plate portion 3d.

  Since the response force transmission plate 62 provided in the response force applying mechanism 60 can be bent and deformed forward (in the Z1 direction), the response force transmission plate 62 is attached when the operation target member 5 is attached to the support base 3. The response force transmission plate 62 is fixed to the display substrate 6 by the fixing screw 63.

Next, the operation of the response force generator 1 will be described.
In the responsive force generator 1 used as a vehicle-mounted display device, an operator's finger is placed on any part of the display screen 8 while referring to an image displayed on the display screen 8 that is an operation unit of the operation target member 5. Is touched, the portion of the image touched by the finger is determined by the coordinate detection output from the touch sensor.

  When the display screen 8 is pushed backward (Z2 direction) with the finger, the pressing operation force acts on the fixing brackets 23a and 23b from the bearing members 22a and 22b through the shaft member 21, and is shown in the sectional view of FIG. In the elastic support portions 30a and 30b, the elastic intervention member 31 is compressed and deformed. Also in the auxiliary elastic support portion 50 shown in FIG. 9, the elastic intervention member 31 is compressed and deformed by the boss 54 fixed to the display substrate 6, and the operation target member 5 is moved in the Z2 direction toward the support plate portion 3d. It is done.

  Then, as shown in FIG. 2, the operation detection member (force sensor) 65 provided on the support plate 3d of the support base 3 is pressed by the operation target member 5, and the display screen 8 is pressed. Detected. The main body control unit (not shown) determines what operation has been performed from the detection output of the touch sensor and the detection output of the operation detection unit 65, and from the image signal of the image displayed on the display screen 8, A processing operation based on the operated operation is started.

  At this time, the operation reaction force applied to the operator's finger from the display screen 8 is applied to the elastic coefficient at the time of compressive deformation of the elastic interposing member 31 provided in the elastic support portions 30a and 30b and to the auxiliary elastic support portion 50. It is determined by the elastic coefficient at the time of compression of the provided elastic interposing member 51, and further by the spring constant of the bending deformation of the elastic arm portions 42x and 42y of the regulation support members 40a and 40b.

  When the operation detecting unit 65 detects that the operation target member 5 is pushed in the Z2 direction, an operation command for generating a response force is issued from the main body control unit, and the mechanism main body unit 61 of the response force applying mechanism 60 is issued. Is driven. The response force in the X1-X direction generated in the mechanism main body 61 is applied from the response force transmission plate 62 to the operation target member 5. The response force at this time is a single force that reciprocates the operation target member 5 in the X1-X2 direction in one cycle or a vibration force that reciprocates in the X1-X2 direction in a plurality of cycles.

  In the movement direction restricting unit 20, the bearing members 22a and 22b fixed to the display substrate 6 of the operation target member 5 are slidably supported by the shaft member 21 extending in the X1-X2 direction. Relative movement with respect to the support base 3 is restricted in the X1-X2 direction. For this reason, when a force is applied from the response force applying mechanism 60, the operation target member moves only in the X1-X2 direction.

  Further, in the movement direction restricting portion 20, the fixing brackets 23a and 23b are fixed to the restricting support members 40a and 40b, and the elastic arm portions 42x and 42y extending in the intersecting direction (orthogonal direction) at the restricting support members 40a and 40b. Is fixed to the support plate portion 3d. In addition, the elastic arm portions 42x and 42y have their plate surfaces oriented substantially parallel to the X1-X2 direction, which is the direction of action of the response force, and the rigidity of the elastic arm portions 42x and 42y in the X1-X2 direction is increased. ing. Therefore, the fixed brackets 23a and 23b are easy to move in the Z1-Z2 direction as the pressing operation direction, but are difficult to move in the surface direction of the XY plane, and when the response force is applied from the response force applying mechanism 60. In addition, the operation target member 5 can operate only in the X1-X2 direction.

  When the display screen 8 of the operation target member 5 is pushed in the Z2 direction by the operator's finger, the response force acting on the finger from the display screen 8 intersects (perpendicularly) the pressing operation direction in the X1-X2 direction. For this reason, it becomes easier to feel responsiveness with a finger from the display screen. In particular, when the response force generator 1 is used as an in-vehicle display device, the display screen is constantly swaying in the front-rear direction (Z1-Z2 direction) due to vehicle body vibration, and therefore in a plane parallel to the XY plane. By applying the response force in one direction, it is possible to make the operator's finger feel the response force effectively.

  Here, the movement direction restricting portion 20 does not exist, and the operation target member 5 is elastically interposed between the elastic support members 30a and 30b and the auxiliary elastic support portion 50 with respect to the support plate portion 3d. It is assumed that only the mounting member 51 is supported. In this case, since the elastic intervention member 31 and the elastic intervention member 51 can be deformed in any direction on the XY plane, the response force applying mechanism 60 responds to the operation target member 5 in the X1-X2 direction. Even if a force is applied, the operation target member 5 has a motion component other than the X1-X2 direction.

  That is, when a force in the X1-X2 direction is generated in the response force applying mechanism 60 under the above assumption, the operation target member 5 has a moment (with a fulcrum above the support base 3 in the figure by this force ( The moment α) shown in FIG. 6 acts. Therefore, even if a response force in the X1-X2 direction is applied to the operation target member 5 from the response force applying mechanism 60, the operation target member 5 tries to rotate by the moment α and should be given to the operation target member 5. The response force has not only the X-direction component but also the Y-direction component, making it difficult for the operator's finger to feel a strong and sharp response force.

  On the other hand, the response force generation device 1 according to the embodiment includes the movement direction of the operation target member 5 restricted by the movement direction restriction unit 20 and the direction of the force applied from the response force applying mechanism 60 to the operation target member 5. However, since both coincide in the X1-X2 direction, the kinetic energy generated by the response force applying mechanism 60 can be concentrated and applied to the operation target member 5 in the X1-X2 direction. Therefore, it becomes possible to give a large acceleration to the operation target member 5.

  When the operator's finger presses the display screen 8 of the operation target member 5 in the opposite direction Z2, the response force acting on the finger from the display screen 8 intersects (perpendicularly) the pressing operation direction X1-. Since it is the X2 direction, it becomes easy to feel the response force with a finger from the display screen. In addition, by operating the display screen 8 only in one direction in a plane parallel to the XY plane, it is possible to make the finger feel a large acceleration.

  Further, as shown in FIG. 6, the support span L of the shaft member 21 between the bearing members 22 a and 22 b, the force generation unit in the response force applying mechanism 60, and the shaft member 21 on the XY plane. At the distance H, the support span L is sufficiently longer than the distance H. Since the shaft member 21 that guides the operation target member 5 in the X1-X2 direction and the generation portion of the driving force in the X1-X2 direction are close to each other, between the bearing members 22a, 22b and the shaft member 21 In addition, so-called stick-slip movement is less likely to occur, and the frictional resistance between the bearing members 22a and 22b and the shaft member 21 is also reduced. Therefore, it is possible to efficiently give a large acceleration in the X1-X2 direction to the operation target member 5.

  The reaction force when the display screen 8 is pressed with a finger is the elastic coefficient of the elastic intervention member 31 provided in the elastic support portions 30a and 30b and the elasticity of the elastic intervention member 51 provided in the auxiliary elastic support portion 50. It is determined by the coefficient and the spring constants of the elastic arm portions 42x and 42y of the regulation support members 40a and 40b. Further, the resistance force when the operation target member 5 is moved in the X1-X2 direction by the response force applying mechanism 60 is determined by the elastic coefficients of the elastic insertion members 24 a and 24 b provided in the movement direction restricting unit 20.

  When the operator presses the display screen 8 with a finger, it is preferable that the operation target member 5 can move in the Z2 direction even with a relatively weak force, and when the response force is applied to the operation target member 5 from the response force applying mechanism 60. In order to give a strong strong force to the finger from the operation target member 5, it is preferable that the elastic resistance when the operation target member 5 is moved in the X1-X2 direction is large. Therefore, it is preferable that the force required to move the operation target member 5 in the X1-X2 direction is larger than the force required to move the operation target member 5 in the Z2 direction.

  The response force generator 1 is set so that the operation reaction force when the operator presses the display screen 8 with a finger and the elastic resistance when the operation target member 5 is moved in the X1-X2 direction are individually optimized. Is possible.

Hereinafter, modifications of the present invention will be described.
In the present invention, as the structure of the moving direction restricting portion 20, the fixing brackets 23a and 23b are fixed to the display substrate 6 of the operation target member 5 and the bearing members 22a and 22b are elastically interposed members 31 contrary to the embodiment. The bearing members 22a and 22b may be fixed to the fixing portions 41a and 41b of the regulation support members 40a and 40b. In this case, the adjustment screw 33 is fixed to the bearing members 22a and 22b.

  Further, the direction in which the shaft member 21 extends in the movement direction restricting portion 20 may be any direction as long as it is in a plane parallel to the XY plane, and may be, for example, the Y direction.

  In the embodiment, the number of the shaft members 21 provided in the movement direction restricting portion 20 is one. However, even if the shaft member 21 is divided into two and the shaft centers of the respective shaft members are located on the same line. Good. In this case, a bearing member and a fixing bracket are individually provided on each shaft member.

  In the response force applying mechanism 60, the mechanism main body 61 may be directly fixed to the operation target member 5.

  In the above-described embodiment, the operation target member 5 is a vehicle-mounted display device, but the operation target member is not limited to this. For example, a part of an instrument panel provided in a vehicle interior of a car An operation target member including a capacitive sensor may be used.

DESCRIPTION OF SYMBOLS 1 Response force generator 2 Base 3 Support base 4 Fixed base 5 Operation target member 6 Display board 8 Display screen 10 Connection mechanism 20 Movement direction control part 21 Shaft member 22a, 22b Bearing member 23a, 23b Fixed bracket 24a, 24b Elastic insertion member 26 Compression coil springs 30a, 30b Elastic support portion 31 Elastic intervention member 33 Adjustment screw 33a Adjustment portions 40a, 40b Restriction support members 41a, 41b Fixing portions 42x, 42y Elastic arm portions 45, 46 Fixing mechanism 50 Auxiliary elastic support Part 51 elastic intervention member 60 stress applying mechanism 65 operation detection part G1, G2, G3 adjustment gap

Claims (9)

A base, an operation target member at least a part of which is an operation unit, an operation detection unit that detects that the operation unit is operated, and a response force applying mechanism that applies a response force to the operation target member. In the response force generator having
An elastic support part that supports the operation target member on the base and a movement direction restriction part that restricts the movement direction of the operation target member with respect to the base are provided,
The operation target member is supported by the elastic support portion so as to be movable in at least the facing direction of the base and the operation target member, and the movement direction restricting portion causes the movement direction of the operation target member to be the opposite direction. Restricted to one direction along the plane that intersects the direction,
A response force generating apparatus, wherein a response force in the one direction is applied from the response force applying mechanism to the operation target member. The movement direction restricting portion includes a shaft member and a bearing member through which the shaft member is slidably inserted.
The response force generation according to claim 1, wherein one of a fixing bracket for fixing the shaft member and the bearing member is fixed to the operation target member, and the elastic support portion is provided between the other and the base. apparatus.   The response force generating device according to claim 2, wherein the elastic support member is provided with an elastic intervention member sandwiched between the fixed bracket or the bearing member and the base.   A regulation support member formed of an elastically deformable plate material is provided, and the regulation support member has a fixed part to which the fixing bracket or the bearing member is fixed, and extends from the fixed part in two directions along the surface. 4. The response force generating device according to claim 2, wherein elastic arm portions that flex in the opposite direction are integrally formed, and each of the elastic arm portions is fixed to the base.   The response force generation device according to claim 4, wherein the elastic arm portion can be fixed to the base by adjusting a position in a direction along the surface.   An adjustment part is provided in the fixed bracket or the bearing member, and the adjustment part appears on a back part of the base opposite to the side facing the operation target member, and the adjustment part is moved. The response force generator according to claim 5, wherein a fixed position between the restriction support member and the base is adjustable in a direction along the surface.   An elastic insertion member is provided between the fixed bracket and the bearing member, and the force required to move the operation target member in the one direction relative to the base is an elastic coefficient of the elastic insertion member. The response force generator according to any one of claims 2 to 6, which is determined by:   The force required to move the operation target member in the facing direction relative to the base is smaller than the force required to move the operation target member in the one direction relative to the base. The response force generator described.   The fixed bracket and the bearing member are spaced apart from each other in the one direction, and a support span of the shaft member at the bearing member is along the surface of the response force applying mechanism and the shaft member. 9. The response force generator according to claim 2, wherein the response force generator is longer than a distance in a direction.

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