JP5349400B2 - Operation knob holding structure - Google Patents

Description

  The present invention mainly relates to an operation knob holding structure used in a vehicle such as an automobile, and in particular, an operation knob holding in which an operation tip of a reset knob protrudes from a transparent front cover member toward a vehicle interior side. Concerning structure.

  Conventionally, as shown in FIGS. 11 and 12, as an operation knob holding structure of a vehicle display device, one provided in a combination meter device 1 positioned in front of a driver seat in a passenger compartment R is known. (For example, see Patent Documents 1 and 2).

  First, the configuration of the combination meter device 1 will be described. In the combination meter device 1, an epoxy resin electronic circuit board 2 having a flat plate shape is provided in a resin meter housing 4 constituting a housing. Yes.

  The electronic circuit board 2 is mounted with a pointer actuator for rotationally driving a meter pointer or the like, or a surface display device such as a liquid crystal, and is configured so that various drive signals are supplied to the pointer actuator and the like. Has been.

  Further, a light guide member 9a is disposed on the front side surface 2a of the electronic circuit board 2 where illumination light sources such as the knob switch 6 and the LED light emitters 7 are provided.

  A dial plate member 9b is further attached to the driver seat side of the light guide member 9a.

  The dial member 9b is formed in a thin plate shape, and the illumination light of the LED light emitters 7 is guided from the light guide member 9a toward the interior of the vehicle interior R through the multilayer printed layer applied to the back side surface 2b. When the light passes, the light is reduced to a desired light amount or filtered so as to obtain a desired color, and transmitted illumination is performed.

  Further, a transparent resin cover front member 3 is provided on the display surface portion inside the passenger compartment R of the dial member 9b of the combination meter device 1.

  The cover front member 3 is supported by the meter housing 4 and is configured to cover the display surface of the dial member 9b.

  Specifically, the meter housing 4 is mainly provided on the end cover member 5 and the lower housing member 8 provided on the back side surface 2 b of the electronic circuit board 2 and the front side surface 2 a of the electronic circuit board 2. The upper housing member 10 and the outer lid member 11 that are supported by the cover front member 3 are mainly formed.

  The combination meter device 1 is provided with a reset knob member 12 as an operation knob member for resetting a trip meter (not shown).

  The reset knob member 12 has a pressing end portion 12 b facing the pressing surface side of the knob switch 6 provided on the electronic circuit board 2.

  Further, the reset knob member 12 has a cover front knob hole 3a formed in the cover front member 3 in a substantially circular shape when viewed from the front, and an inner diameter dimension that is substantially the same as or slightly larger than the cover front knob hole 3a. Then, a tip end portion 12a is inserted into and protrudes from a knob opening 10a formed in the upper housing member 10.

  Further, the outer lid member 11 has a diameter smaller than those of the cover front knob hole 3a and the knob opening 10a, and the distal end portion 12a of the reset knob member 12 slides in the rotation direction and the insertion / removal direction in the inserted state. A reset knob opening 11a having a possible inner diameter is formed.

  Next, the function and effect of this conventional operation knob holding structure will be described.

  In this conventional operation knob holding structure, as shown in FIGS. 11 and 12, the upper housing member 10 has a knob opening 10 a having a circular shape in front view and a cover front knob hole 3 a of the cover front member 3. An opening is formed.

  When the upper housing member 10 and the cover front member 3 are attached to the meter housing 4 with the dial member 9b attached, the tip 12a of the reset knob member 12 The knob opening 10a and the cover front knob hole 3a of the cover front member 3 are inserted into the front end portion 12a so that the sub-assembly state is obtained.

  The knob opening 10a and the cover front knob hole 3a are formed to have a relatively large diameter so that they can be easily inserted during assembly work.

  Further, in this sub-assembled state, as indicated by a two-dot chain line in FIG. 12, a part 12c on the lower side of the reset knob member 12 is elastically contacted with a point on the inner peripheral surface 3b of the cover front knob hole 3a. In addition, there is also known one that prevents a rattling sound generated by vibration (for example, see Patent Document 2).

  In this conventional combination meter device 1, in order to further improve the appearance quality, the outer lid member 11 is attached in the direction indicated by the white arrow in FIG. It is configured to be

  At this time, the reset knob opening portion 11a formed in the outer lid member 11 has a guide surface portion 11b having an inclined surface portion and is smaller in diameter than the cover front knob hole 3a. In the state in which the front end portion 12a is inserted, the inner diameter dimension is secured so as to be slidable in the rotation direction and the insertion / extraction direction, and the position is regulated in the vehicle upper, lower and vehicle width directions. Has been.

  In addition, as shown by the two-dot chain line in FIG. 11 and the solid line in FIG. 12, a part 12c on the lower surface side of the reset knob member 12 is separated from the inner peripheral surface 3b of the cover front knob hole 3a, and The sliding resistance when the reset knob member 12 is operated can be reduced.

JP 2006-123850 A Japanese Patent Laid-Open No. 11-344362

  In the conventional operation knob holding structure configured as described above, the part 12c on the lower surface side of the reset knob member 12 is elastically contacted at one point with the inner peripheral surface 3b of the cover front knob hole 3a. There is no restriction to the left or right in the vehicle width direction.

  For this reason, in the sub-assembly state, the position of the distal end portion 12a does not exist at a desired position, and may be shifted to the left and right in the vehicle width direction, for example.

  In such a case, if the outer lid member 11 is to be mounted in the direction indicated by the white arrow in FIG. 11, the distal end portion 12a is formed even if the guide surface portion 11b is formed in the reset knob opening portion 11a. Was difficult to insert, and workability was not good.

  In addition, if the distal end portion 12a is inserted through the reset knob opening portion 11a and installed, the reset knob member 12 may be deformed or damaged.

  Further, the pressing force applied from the reset knob member 12 causes the knob switch 6 provided on the electronic circuit board 2 to be pressed in an uneven direction by the pressing end 12b of the reset knob member 12. There was also a risk of damage.

  Accordingly, an object of the present invention is to provide an operation knob holding structure capable of improving the positioning accuracy of the reset knob member in the sub-assembly state and improving the assembling workability.

In order to solve the above-mentioned problem, the invention described in claim 1 is provided with a knob switch in a meter housing, and a pressing end portion of an operation knob member supported in the meter housing is opposed to the knob switch. In addition, a cover front knob hole through which the operation knob member is inserted is formed in the cover front member provided on the display side surface of the meter housing, and at least a part of the operation knob member is inserted in the sub-assembly state. The outer lid member that is elastically contacted with any one of the inner peripheral surfaces of the cover front knob hole and covers at least a part of the cover front member on the vehicle interior side is attached to the meter housing in the sub-assembled state. When the operation knob member is inserted, the distal end portion of the operation knob member is inserted to separate the operation knob member from the inner peripheral surface of the cover front knob hole. While, the reset knob opening to protrude to operable position in 該車 chamber direction an operation knob holding structure that apertures formed,
The cover front knob hole has an operation knob holding structure in which at least a pair of right and left movement restricting portions to which the operation knob member is elastically contacted are formed on both the left and right sides of the inner peripheral surface across the opening center. It is a feature.

  Further, in the present invention, the pressing end portion of the operation knob member is elastically supported by the meter housing, and the operation knob member is biased toward the left and right movement restricting portion. The operation knob holding structure according to claim 1 having a biasing means.

  Further, according to a third aspect of the present invention, the left-right movement restricting portion includes a pair of inclined surfaces that are symmetrically disposed on the left and right sides of the inner peripheral surface with the opening center interposed therebetween. The operation knob holding structure according to claim 1 or 2 constituted by a groove.

  According to a fourth aspect of the present invention, the left-right movement restricting portion has a keyhole shape formed of a pair of convex portions symmetrically arranged on both the left and right sides of the inner peripheral surface with the opening center in between. The operation knob holding structure according to claim 1 or 2 constituted by a groove.

  Further, according to a fifth aspect of the present invention, the left-right movement restricting portion has a trapezoidal shape having a pair of opposing wall surface portions symmetrically arranged on both the left and right sides of the inner peripheral surface with the center of the opening interposed therebetween. The operation knob holding structure according to claim 1 or 2 constituted by a groove.

  Further, according to a sixth aspect of the present invention, there are provided a plurality of the operation knob members, and the front end portions of the operation knob members protrude from the cover front knob holes formed in the cover front member. The operation knob holding structure according to any one of claims 1 to 5 is provided.

  When the operation knob member is elastically contacted with the left-right movement restricting portion formed in the cover front knob hole, the operation knob member is arranged in the center direction of the opening. Toward the left and right sides of the inner peripheral surface so as to be pushed back substantially uniformly and stably held.

  For this reason, the left and right positions of the operation knob member in the sub-assembly state are restricted, and even when the outer knob member is attached to the meter housing, it can be easily inserted even with a relatively small reset knob opening. Become.

  Further, in a state where the outer lid member is mounted, the distal end portion of the operation knob member is inserted into the reset knob opening portion, and the distal end portion projects so that the inner periphery of the cover front knob hole is The operation knob member is separated from the surface, and the sliding resistance is lost.

  For this reason, the cover front knob hole other than the left-right movement restricting portion may be formed with a relatively large inner diameter, and even when the cover front member is mounted, the front end portion of the operation knob member can be easily formed. Can be inserted.

  Therefore, the assembly workability is further improved.

  According to a second aspect of the present invention, the pressing end of the operation knob member is elastically supported by the meter housing by the biasing means, and the operation knob member is interposed between the left and right movement restricting portions. It is energized towards.

  The pressing force of the urging means is surely brought into elastic contact with the operation knob member between the left and right movement restricting portions formed in the cover front knob hole, from the left and right sides of the inner peripheral surface, It is held by the force pushed back.

  Further, according to a third aspect of the present invention, the V-shaped groove has a pair of inclined surfaces that are symmetrically arranged on both the left and right sides of the inner peripheral surface across the center of the opening. The outer surface of the operation knob member is elastically contacted at two locations, one on the left and one on the right.

  Further, according to a fourth aspect of the present invention, the pair of convex portions of the keyhole-shaped groove portion are symmetrically arranged on the left and right sides of the inner peripheral surface with the center of the opening therebetween, and the operation knob The outer surface of the member is elastically contacted at two locations, one on the left and one on the right.

  And what was described in Claim 5 has a pair of inclined surfaces in which the trapezoidal groove portion is symmetrically arranged on both the left and right sides of the inner peripheral surface across the center of the opening. The outer surface of the operation knob member is elastically contacted at two locations, one on the left and one on the right.

  Further, according to a sixth aspect of the present invention, even if a plurality of the operation knob members are provided, the front end portions of the operation knob members are open to the cover front member. When projecting from the left and right positions, the left and right positions are regulated by the left and right movement regulating units.

  For this reason, each reset knob opening formed in the outer lid member can be easily inserted, and the assembly workability when the outer lid member is attached to the meter housing can be improved.

The perspective view (a) explaining the structure of the combination meter apparatus which removed the outer lid member by the display apparatus for vehicles to which the operation knob holding structure of embodiment of this invention is applied, and the partially expanded perspective view of the principal part ( b). 1 is an exploded perspective view illustrating an overall configuration of a combination meter device to which an operation knob holding structure according to an embodiment of the present invention is applied. It is a perspective view explaining the composition of the combination meter device which removed the outer lid member in the combination meter device of an embodiment of this invention. It is the typical perspective view which looked at the appearance of the combination meter device of an embodiment of this invention from the vehicle interior side. It is the typical front view which removed the outer lid member in the combination meter device of an embodiment of this invention. FIG. 6 is an enlarged front view of a portion B in FIG. 5 in the operation knob holding structure of the embodiment of the present invention. FIG. 6 is an exploded cross-sectional view of the combination meter device corresponding to the position along the line AA in FIG. 5 in the operation knob holding structure of the embodiment of the present invention. FIG. 6 is a cross-sectional view of the combination meter device at a position along the line AA in FIG. 5 in the operation knob holding structure of the embodiment of the present invention. FIG. 6 is an enlarged front view of a portion corresponding to part B in FIG. 5 in the combination meter device according to Example 1 of the embodiment of the present invention. It is a perspective view explaining the structure of the combination meter apparatus which removed the outer lid member. FIG. 6 is an enlarged front view of a portion corresponding to part B in FIG. 5 in the combination meter device according to Example 2 of the embodiment of the present invention. FIG. 6 is an exploded cross-sectional view of a combination meter device to which a conventional operation knob holding structure is applied, corresponding to a position along line AA in FIG. 5. It is an operation knob holding structure of a prior art example, and is an enlarged front view in a portion corresponding to portion B in FIG.

  Next, an operation knob holding structure according to an embodiment for carrying out the present invention will be described with reference to FIGS.

  In addition, the same code | symbol is attached | subjected and demonstrated about the same thru | or equivalent part as the said conventional.

  First, from the configuration, the operation knob holding structure of this embodiment is a trip meter provided in a combination meter device 13 provided in front of a driver's seat in a vehicle compartment R as a vehicle display device. Shows what applies.

  In this combination meter device 13, an electronic circuit board 2 as a circuit board made of epoxy resin and having a flat plate shape is accommodated in a resin meter housing 13 a constituting the housing, as shown in FIG. 7. Yes.

  On the front side surface 2a of the electronic circuit board 2, a pointer actuator for rotationally driving a meter pointer or a surface display device such as a liquid crystal is mounted, and various driving signals are supplied to these pointer actuators and the like. Thus, various vehicle information is displayed.

  An end cover member 5 is provided on the back side surface 2 b of the electronic circuit board 2 of the combination meter device 13.

  Further, an illumination light source such as a knob switch 6 and LED light emitters 7 is provided on the front side surface 2a of the electronic circuit board 2.

  Illumination light due to the lighting of the LED light emitters 7... Is transmitted through the light guide member 9a disposed on the front side surface 2a and the thin dial member 9b attached to the light guide member 9a. It is configured to be visible as transmitted illumination from the inner driver seat side.

  In the dial plate member 9b of this embodiment, a multilayer printed layer 9c in which a light shielding layer or a color layer is laminated in a plurality of layers is formed on the back side surface.

  Then, when the illumination light of the LED light emitters 7 guided through the dial member 9b from the light guide member 9a in the vehicle interior R passes through the dial member 9b, the light intensity is reduced to a desired light amount or desired. It is configured so that transmitted illumination is performed by filtering so as to be the color of the light.

  Further, in the combination meter device 13, a cover front member 14 is provided inside the casing R of the dial member 9 b.

  The cover front member 14 is formed of a transparent resin material, and is attached to the left and right meter displays that are obliquely mounted with the upper housing member 20 engaged with the electronic circuit board 2 and the like interposed therebetween. The meter display surface portions 9d and 9d of the dial plate member 9b are covered with the portions 14b and 14b.

  Further, in this upper housing member 20, hollow cylindrical knob insertion cylindrical portions 20a, 20a having an axial direction perpendicular to the surface of the electronic circuit board 2 correspond to positions where the knob switches 6, 6 are provided. And it is formed so that it may become one.

  Further, the cover front member 14 has a pair of left and right cover front knob holes between the left and right meter display transmission portions 14b and 14b and at positions corresponding to the knob insertion cylindrical portions 20a and 20a. Holes 14a and 14a are formed.

  Specifically, as shown in FIGS. 7 and 8, the end cover member 5 provided on the back side surface 2b of the electronic circuit board 2 and the upper housing member 20 provided on the front side surface 2a of the electronic circuit board 2 are provided. Thus, the light guide member 9a and the dial plate member 9b are sandwiched.

  Further, as shown in FIG. 2, the cover front member 14 is sandwiched between the upper housing member 20 and an outer lid member 21 is attached thereto.

  In the outer lid member 21, a pair of left and right meter openings 21a and 21a are formed in a substantially circular shape so as to match the positions of the left and right meter display transmission portions 14b and 14b of the cover front member 14. .

  Further, the outer lid member 21 has a reset knob opening 21b between the meter openings 21a and 21a at a position communicating with the knob insertion cylindrical portions 20a and 20a and the cover front knob holes 14a and 14a. 21b are formed.

  The combination meter device 13 is provided with a pair of left and right reset knob members 15 and 15 as operation knob members for resetting a trip meter (not shown) at regular intervals in the vehicle width direction. Yes.

  The reset knob member 15 has a long, substantially round bar shape, and is opposed to the pressing surface side of the knob switch 6 provided on the electronic circuit board 2 at the opposite end of the tip portion 15a on the operation knob side. And the press edge part 15b is provided.

  As shown in FIGS. 7 and 8, locking end portions 15 c and 15 c having a substantially conical shape with a crack are integrally formed on the pressing end portion 15 b of this embodiment.

  These locking hooks 15c and 15c cannot be pulled out from the light guide member 9a of the meter housing into a locking claw portion 19 as an urging means integrally projecting so as to be elastically deformable. The pressing end 15b is elastically supported.

  Then, as shown in FIG. 7, the pressing end portion 15b is urged in the upward direction for the vehicle via the locking collar portion 15c by the elastic urging force of these locking claw portions 19. As a result, the tip 15a is rotated downward in the vehicle with the fulcrum SP as the rotation center, and the reset knob member 15 swings toward the lower edge of the inner peripheral surface of the cover front knob hole 14a. And is configured to be energized.

  As shown in FIG. 6, the cover front knob hole 14a of this embodiment has a substantially oval circular shape when viewed from the front, and a V-shaped groove 18 serving as a left-right movement restricting portion is formed at the lower edge of the inner peripheral surface. Has been.

  The V-shaped groove 18 has a pair of inclined surfaces 18a and 18a that are symmetrically arranged on the left and right sides of the inner peripheral surface with the opening center NP of the cover front knob hole 14a interposed therebetween. It is configured.

  The inclined surfaces 18a and 18a are inclined left and right opposite to each other with the inclination angle α1 and α2 being set to the same angle (α1 = α2) with respect to the perpendicular to the opening center NP. Along the tangent of the circular inner peripheral surface shape of the knob hole 14a, the knob hole 14a is formed to extend linearly.

  Therefore, as shown in FIG. 1 (b) or FIG. 6, the contact points 15d and 15d located in the vicinity of about 45 degrees left and right below the outer peripheral surface of the reset knob member 15 are The inclined surfaces 18a and 18a are in point contact with each other and elastically contacted at two points on the left and right.

  Further, between these inclined surfaces 18a, 18a, a lower corner portion 18b that is narrower than the outer diameter of the reset knob member 15 and that has a smaller radius of curvature is formed immediately below the opening center NP. Has been.

  The reset knob member 15 is biased toward the lower corner portion 18b, so that the left and right contact points 15d and 15d of the lower side surface portion of the reset knob member 15 correspond to the inclined surfaces 18a, 18a is configured to be in contact with each point with a substantially equal pressing force.

  Further, as shown in FIG. 7, the reset knob member 15 has a cover front knob hole 14a formed in the cover front member 14 and an inner diameter dimension that is substantially the same as or slightly larger than the cover front knob hole 14a. The front end portions 15a and 15a are inserted into the knob insertion cylindrical portions 20a and 20a formed in the upper housing member 20 so as to have a hole, and project toward the outer side of the cover front member 14. It is configured.

  Further, in the outer lid member 21, in the center in the vehicle width direction, in the vicinity of the lower edge portion, the distal end portion of the reset knob member 15 is smaller in diameter than the cover front knob hole 3a and the knob insertion cylindrical portions 20a and 20a. A pair of left and right reset knob apertures 21b, 21b having an inner diameter dimension that is slidable in the rotational direction and the insertion / removal direction in the inserted state 15a are formed at predetermined intervals.

  1 and 3, the meter housing 13a in the sub-assembly state in which the cover front member 14 is mounted is attached to at least the vehicle compartment of the cover front member 14 as shown in FIGS. When the outer lid member 21 is mounted so as to cover a part of the inside, as shown by a two-dot chain line in FIG. 7, the tip portions 15a and 15a of the reset knob members 15 and 15 are connected to the reset knob opening. The parts 21b and 21b are inserted respectively.

  4 and 8, when the outer lid member 21 is completely attached, the outer surfaces of the reset knob members 15 and 15 are separated from the inner peripheral surfaces of the cover front knob holes 14a and 14a. The front end portions 15a, 15a are configured to project to a position where they can be operated in a space portion in the interior direction of the passenger compartment R.

  Further, a guide member 22 is provided on the back side of the outer lid member 21 of this embodiment.

  The guide member 22 has a conical tapered portion 22a that smoothly guides the distal end portion 15a of the reset knob member 15 and is inserted into the reset knob opening portion 21b, and coincides with the opening center of the guide hole 22b. It has a hole center and is integrally formed.

  The guide hole 22b of the guide member 22 is smaller in diameter than the reset knob opening 21b of the outer lid member 21 and has an inner diameter that is substantially equal to the outer diameter of the tip 15a of the reset knob member 15. The guide hole 22b is mounted on the back side of the outer lid member 21 so as to coincide with the center of the reset knob opening 21b in the axial extension direction.

  Next, the effect of the operation knob holding structure of this embodiment will be described.

  In the operation knob holding structure of this embodiment, as shown in FIG. 2, when the cover front member 14 is mounted from above the upper housing member 20, the reset knob member 15 is inserted into the cover front knob holes 14a, 14a. 15 is inserted through the tip portions 15a and 15a.

  At this time, as shown in FIG. 1, the inner diameter dimension of the cover front knob holes 14 a, 14 a is set larger than the outer dimension of the reset knob members 15, 15.

  For this reason, the front-end | tip parts 15a and 15a of the said reset knob members 15 and 15 can be easily penetrated to the cover front knob holes 14a and 14a, and assembly workability | operativity is favorable.

  As shown in FIG. 3, when the cover front member 14 is mounted on the meter housing 13a, the locking claw portion 19 is in the vicinity of the pressing end 15b of the reset knob member 15 as shown in FIG. While the locking lever 15c provided on the vehicle is locked, it is urged toward the upper side of the vehicle, and the distal end portion 15a of the reset knob member 15 swings toward the lower side of the vehicle around the fulcrum SP. Moved.

  For this reason, the reset knob member 15 is moved toward the lower edge of the inner peripheral surface of the cover front knob hole 14a as shown in FIGS.

  As shown in FIG. 6, the left and right contact points 15d on the lower peripheral surface side of the reset knob member 15 are located on the left and right sides of the V-shaped groove 18 formed in the cover front knob hole 14a. They are elastically contacted at approximately 45 degrees diagonally at left and right symmetrical positions.

  Therefore, the reset knob member 15 is applied with a reaction force substantially uniformly so as to be pushed back obliquely from the inclined surfaces 18a, 18a on both the left and right sides of the inner peripheral surface toward the opening center NP. And it is hold | maintained in the said cover front knob hole 14a, and does not raise | generate a position shift to the left-right vehicle width direction.

  Next, with respect to the meter housing 13a in the sub-assembled state where the cover front member 14 shown in FIGS. 1 and 3 is mounted, as shown in FIGS. The outer lid member 21 is mounted so as to cover a part on the vehicle interior side excluding the right meter display transmission portions 14b and 14b.

  When the cover front member 14 is mounted, as shown by a two-dot chain line in FIG. 7, the reset knob openings 15a and 15a of the reset knob members 15 and 15 are formed in the outer lid member 21 with openings. The parts 21b and 21b are inserted respectively.

  As shown in FIG. 6, the left and right positions in the vehicle width direction of the tip 15 a of the reset knob member 15 in the sub-assembly state are determined by the left and right inclined surfaces 18 a and 18 a of the V-shaped groove 18. It is regulated.

  Therefore, the positional accuracy is good, and even the relatively small reset knob opening portions 21b and 21b can be easily inserted when the outer lid member 21 is attached to the meter housing 13a.

  Further, as in this embodiment, a plurality of reset knob members 15, such as reset knob members 15, 15 protruding left and right as a pair, protrude from the substantially center of the cover front member 14 in the vehicle width direction. However, since the position is restricted in the left-right direction, the reset knob opening 21b formed in the outer lid member 21 can be assembled with good workability.

  In this embodiment, as shown by the solid line in FIG. 7, the tip 15a of the reset knob member 15 is abutted against the tapered portion 22a of the guide member 22, and from the guide hole 22b in the upward and downward directions. And is smoothly guided into the reset knob opening 21b.

  For this reason, the assembling property is further good, and there is no possibility of damaging peripheral components such as the reset knob member 15 or the knob switch 6.

  4 and 8, when the outer lid member 21 is mounted, the distal end portion 15a of the reset knob member 15 is inserted into the reset knob opening portion 21b, and the distal end portion 15a is By projecting in the direction of the space in the passenger compartment R, as shown by a two-dot chain line in FIG. 6, the reset knob is provided from the inclined surfaces 18a, 18a constituting the inner peripheral surface of the cover front knob hole 14a. The lower outer peripheral surface of the member 15 is separated, and the axial center of the reset knob member 15 is aligned with the opening center NP, so that the sliding resistance is lost.

  For this reason, the cover front knob hole 14a other than the V-shaped groove portion 18 formed by the inclined surfaces 18a, 18a may be formed with a relatively large inner diameter, and the cover front member 14 is connected to the meter. Also when mounting to the housing 13a, the dimension can be set so that the tip 15a of the reset knob member 15 can be easily inserted.

  Therefore, also in this point, the assembling workability is good.

  The pressing end portion 15b of the reset knob member 15 is elastically supported by the meter housing by a locking claw portion 19 used for retaining the locking provided on the pressing end portion 15b side of the reset knob member 15. ing.

  For this reason, the reset knob member 15 is set relatively close to the pressing end 15b side toward the left and right inclined surfaces 18a, 18a of the V-shaped groove 18 as shown in FIG. With the SP as the center of rotation, it is moved greatly and at the same time abuts diagonally.

  The pressing force of the latching claw portion 19 surely faces the lower edge side of the reset knob member 15 in the direction of the lower corner portion 18b between the left and right inclined surfaces 18a, 18a formed in the cover front knob hole 14a. The outer peripheral surface is brought into elastic contact, and is held by the force pushed back from both the left and right sides.

  Therefore, in this embodiment, the latching claw part 19 and the latching hook part 15c are latched to prevent the latching part 19c from being biased so as to apply a biasing force in one direction directly below without adding additional parts. By providing the position restriction on both the left and right sides, the increase in manufacturing cost can be suppressed without increasing the number of parts such as other spring members.

  Other configurations and functions and effects are the same as or equivalent to those of the conventional example, and the description thereof is omitted.

  FIG. 9 shows an operation knob holding structure of Example 1 which is a modification of the embodiment of the present invention.

  In addition, the same code | symbol is attached | subjected and demonstrated about the part thru | or the same as the said embodiment.

  First, the differences in configuration will be mainly described. In the operation knob holding structure of the first embodiment, as shown in FIG. 9, the cover front knob hole 24a formed in the cover front member 24 has an inner periphery. The lower edge of the surface is provided with a substantially circular shape in a front view in which a keyhole groove 28 is formed to be recessed.

  In the keyhole-shaped groove 28, a pair of convex portions 28a and 28a as left-right movement restricting portions arranged symmetrically on the left and right are provided in the vicinity of the left and upper right edge portions of the bottom surface portion 28b.

  The contact points 15d and 15d located on the left and lower right edge sides of the reset knob member 15 are configured to be elastically contacted with these convex portions 28a and 28a.

  Next, the effect of the operation knob holding structure of the first embodiment will be described.

  In Example 1, in addition to the operation and effect of the operation knob holding structure of the above-described embodiment, the reset knob is further provided on a pair of convex portions 28a and 28a arranged symmetrically on the left and right sides of the keyhole groove 28. The contact points 15d and 15d of the member 15 are brought into point contact and elastic contact.

  The convex portions 28a, 28a are arranged symmetrically on the left and right sides of the inner peripheral surface with the opening center NP of the cover front knob hole 24a sandwiched therebetween.

  For this reason, the contact points 15d and 15d make point contact with the convex portions 28a and 28a at about 45 degrees from both the left and right sides across the perpendicular to the opening center NP. Bulleted with dots.

  Therefore, the reset knob member 15 is applied with a reaction force substantially evenly so as to be pushed back obliquely toward the opening center NP, and is stably held without causing a positional shift in the left-right vehicle width direction. The

  Other configurations and operational effects are the same as or equivalent to those of the above-described embodiment, and thus description thereof is omitted.

  FIG. 10 shows an operation knob holding structure of Example 2, which is another modification of this embodiment.

  In addition, the same code | symbol is attached | subjected and demonstrated about the part thru | or same as the said embodiment and the said Example 1. FIG.

  First, the difference in configuration will be mainly described. In the operation knob holding structure of the second embodiment, as shown in FIG. 10, the cover front knob hole 34a formed in the cover front member 34 has an inner periphery. A table having a pair of inclined opposing wall surface portions 38a, 38a that are symmetrically disposed on both the left and right sides of the lower edge of the surface with the opening center NP interposed therebetween, and the corners are provided on the left and right sides. A shape groove portion 38 is formed to extend so as to have a shape in which a linear trapezoid is combined below a substantially circular shape in a front view.

  The trapezoidal groove portion 38 is provided with a flat bottom surface portion 38b having a narrow width in the inclination direction between the pair of opposed wall surface portions 38a, 38a as the right and left movement restricting portions.

  The contact points 15d and 15d located on the left and right lower edge sides of the reset knob member 15 are configured to be elastically contacted with each one of the opposing wall surface portions 38a and 38a.

  Next, the effect of the operation knob holding structure of the second embodiment will be described.

  In Example 2, in addition to the operational effects of the operation knob holding structure of the embodiment and Example 1, a pair of symmetrically arranged at substantially the same angle on the left and right sides of the trapezoidal groove portion 38. The contact points 15d and 15d of the reset knob member 15 are brought into point contact and elastic contact with the opposing wall surfaces 38a and 38a, respectively.

  The opposed wall surface portions 38a and 38a are arranged symmetrically on the left and right sides of the inner peripheral surface with the opening center NP of the cover front knob hole 34a interposed therebetween.

  For this reason, the contact points 15d and 15d are respectively point-contacted with the opposing wall surface portions 38a and 38a at about 30 degrees from both the left and right sides across the perpendicular to the opening center NP. The opposing reaction force is generated from the two points on the right.

  Accordingly, reaction force is applied to the reset knob member 15 in the direction of the opening center NP substantially equally to the left and right, and the reset knob member 15 is stably held without causing displacement in the left-right vehicle width direction.

  Other configurations and operational effects are the same as or equivalent to those of the above-described embodiment and Example 1, and thus description thereof is omitted.

  As described above, the operation knob holding structure of the embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to the operation knob holding structure of the embodiment, and the gist of the present invention is described. Design changes that do not deviate are included in the present invention.

  For example, in the above-described embodiment, the locking flange portions 15c and 15c having a substantially conical shape are formed on the pressing end portion 15b of the reset knob member 15 so as to be integrally formed, and the locking flange portions 15c and 15c are formed. The pressing end is locked from the light guide member 9a of the meter housing to the locking claw portion 19 as an urging means integrally provided so as to be elastically deformable, so that the pressing end cannot be pulled out. The portion 15b is elastically supported. However, the present invention is not limited to this, and even if a spring member, a leaf spring member, or another elastically deformable resin member or metal member is used as the biasing means, the pressing As long as the end 15b is elastically supported by the meter housing, the shape, quantity, and material of the support position are not particularly limited.

  The number of the reset knob members 15 is not necessarily a pair of left and right, but may be one or a plurality of three or more. The material is not particularly limited.

  Further, the V-shaped groove portion 18 of the above embodiment has a pair of inclined surfaces 18a, 18a symmetrically arranged on the left and right sides of the inner peripheral surface across the opening center NP of the cover front knob hole 14a. As shown in FIG. 6, it is mainly configured to have a straight shape, but the inclined surfaces 18a, 18a may be curved, for example, have a step, large diameter and small diameter. These openings may be formed as a single hole, and it is sufficient that at least a pair of right and left movement restricting portions to which the operation knob member is elastically contacted are provided.

  The operation knob holding structure of this embodiment is not limited to the reset knob member 15 used in a vehicle such as an automobile, but the operation tip of the operation knob is directed toward the vehicle interior side from a cover member such as a display unit or an operation panel. As long as the operation knob holding structure is provided in a projecting manner, it can be applied to any operation knob switch such as an air conditioning switch, an audio switch, a navigation system switch, or a combination switch.

2 Electronic circuit board (circuit board)
9a Light guide member 10 Upper housing member 11 Outer lid member 13 Combination meter device (vehicle display device)
13a Meter housing 14 Cover front member 14a, 24a, 34a Cover front knob hole 15 Reset knob member (operation knob member)
15a Tip part 15b Pressing end part 18 V-shaped groove part (left-right movement restricting part)
18a, 18a Inclined surface 19 Locking claw part (biasing means)
20 Upper housing member 21 Outer lid members 21b, 21b Reset knob opening 28 Keyhole groove (left / right movement restricting portion)
28a, 28a Convex part 38 Trapezoidal groove part (left-right movement restriction part)
38a, 38a opposing wall surface

Claims (6)

A knob switch is provided in the meter housing, and a pressing end portion of an operation knob member supported in the meter housing is opposed to the knob switch, and a cover front member provided on the display side surface of the meter housing Forming a cover front knob hole through which the operation knob member is inserted, and in a sub-assembled state, at least a part of the operation knob member is elastically contacted with one of the inner peripheral surfaces of the cover front knob hole. Further, when the outer lid member that covers at least a part of the cover front member on the vehicle interior side is attached to the meter housing in the sub-assembled state, the distal end portion of the operation knob member is inserted, and the cover The operation knob member is spaced from the inner peripheral surface of the front knob hole and protrudes to a position where it can be operated in the direction of the passenger compartment. The reset knob opening a manipulation knob retaining structures apertures formed,
The cover front knob hole includes at least a pair of left and right movement restricting portions that are elastically contacted with the operation knob member on both the left and right sides of the inner peripheral surface across the opening center. Operation knob holding structure.   The pressing end of the operation knob member is elastically supported by the meter housing, and has an urging means for urging the operation knob member between the left and right movement restricting portions. The operation knob holding structure as described.   The left-right movement restricting portion is configured by a V-shaped groove portion including a pair of inclined surfaces arranged symmetrically on both the left and right sides of the inner peripheral surface with the opening center interposed therebetween. Item 3. The operation knob holding structure according to Item 1 or 2.   The left-right movement restricting portion is configured by a keyhole-shaped groove portion including a pair of convex portions arranged symmetrically on the left and right sides of the inner peripheral surface with the opening center interposed therebetween. Item 3. The operation knob holding structure according to Item 1 or 2.   The left-right movement restricting portion is configured by a trapezoidal groove portion having a pair of opposing wall surface portions symmetrically arranged on both the left and right sides of the inner peripheral surface with the opening center in between. Item 3. The operation knob holding structure according to Item 1 or 2.   2. The operation knob member according to claim 1, wherein a plurality of the operation knob members are provided, and a front end portion of each operation knob member is protruded from each cover front knob hole formed in the cover front member. The operation knob holding structure according to any one of 5 to 5.

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