JP2009126364A - Steering device, steering wheel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an effective technique for providing an effect of suppressing abnormal sound or noise generated between a steering wheel side and a horn switch mechanism side, by a simple structure, in a steering device in which the horn switch mechanism is incorporated in a steering wheel for vehicle steering mounted on a vehicle. <P>SOLUTION: The steering device 100, in which the horn switch mechanism 120 is incorporated in the steering wheel 101 for vehicle steering mounted on the vehicle, has a configuration of a plastic support part 105 having an uneven-shaped upper surface 105a for supporting a contact plate 122 on the horn switch mechanism 120 side. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a steering apparatus mounted on a vehicle, and more particularly to a construction technique of a steering apparatus in which a horn switch mechanism is incorporated in a steering wheel for vehicle steering.

Conventionally, in a steering device mounted on a vehicle, a horn switch mechanism is incorporated in an airbag module assembled to a steering wheel, and the horn switch mechanism is operated by a pressing operation of a pressed portion provided in the airbag module. The structure which operates and outputs a horn is adopted.
By the way, in this type of steering device, when the airbag module is assembled to the steering wheel, abnormal noise and noise are generated by rubbing between the steering wheel side member and the horn switch mechanism side member. Is concerned. Such noise and noise are typically generated by a load that the steering wheel receives from an occupant when the vehicle gets on and off. In view of this, Patent Document 1 below discloses a configuration in which abnormal noise is suppressed by forming an uneven surface on a metal contact plate that contacts a member on the steering wheel side of each part of the horn switch mechanism. ing. However, when such a configuration described in Patent Document 1 is adopted, since the contact plate is made of a metal material, it is difficult to perform uneven processing with high dimensional accuracy on the contact plate, and the processing cost is increased. There is a concern that the unevenness of the contact plate constituting the switch mechanism may affect the proper operation of the horn switch mechanism.
JP 2000-318561 A

  Therefore, the present invention has been made in view of such a point, and in a steering device in which a horn switch mechanism is incorporated in a steering wheel for steering a vehicle mounted on a vehicle, the steering wheel side and the horn switch have a simple structure. It is an object of the present invention to provide a technique effective in obtaining an effect of suppressing abnormal noise and noise generated between the mechanism side.

  The present invention is configured to solve the above problems. The present invention can be applied to a construction technique of a steering device in which a horn switch mechanism is incorporated in a steering wheel for steering a vehicle in various vehicles including an automobile. The “vehicle” herein includes various vehicles such as automobiles, aircraft, ships, trains, buses, and trucks.

A steering device according to the present invention is configured as a steering device in which a horn switch mechanism that enables horn output by a pressing operation of a pressed portion is incorporated in a steering wheel for vehicle steering.
The steering wheel is configured to include at least a support portion. This support part is comprised as a resin-made support part which supports the to-be-supported part by the side of a horn switch mechanism. In addition, the support portion has a configuration in which the contact surface with the supported portion is formed in an uneven shape. With regard to the “concave / convex shape” here, the concave / convex surface is formed by applying a processing method such as graining, blasting, electric discharge processing, lapping, or laser processing to the contact surface of the support portion. This concavo-convex surface is also referred to as “textured surface” which is an uneven surface shape in which a flat portion is hardly formed on the top of the convex portion, and “leather wrinkle” which is an uneven surface shape in which a flat portion is formed on the top of the convex portion. . The “supported portion on the horn switch mechanism side” here is intended to broadly encompass the portion supported by the support portion on the horn switch mechanism side. In this configuration, the horn switch mechanism is supported by the support portion. A configuration in which the horn switch mechanism is directly supported, a configuration in which the horn switch mechanism is indirectly supported by the support portion via another member fixed to the horn switch mechanism, and the like can be appropriately employed.

  According to such a configuration of the steering apparatus according to the present invention, it is possible to obtain an effect of suppressing abnormal noise and noise generated between the steering wheel side and the horn switch mechanism side with a simple structure. That is, by making the contact surface with the supported portion of the support portion on the steering wheel side uneven, the contact area between the support portion on the steering wheel side and the supported portion on the horn switch mechanism side is reduced. Thus, the frictional resistance can be reduced, and thus the generation of abnormal noise and noise can be suppressed. In addition, if a configuration in which unevenness is applied to the contact surface of the support portion made of a resin material is employed, it is simpler than a configuration in which unevenness processing is performed on the metal supported portion on the horn switch mechanism side. The method and configuration allow low-cost concavo-convex processing with low cost and the concavo-convex processing does not directly affect the proper operation of the horn switch mechanism, ensuring the reliability of horn operation. It becomes possible.

  In a further form of the steering device according to the present invention, the contact surface of the above configuration is formed with a concavo-convex shape by a plurality of projecting portions projecting sharply toward the horn switch mechanism side, and the plurality of projecting portions It is preferable that it is the structure which contact | abuts to a to-be-supported part in the top part. This configuration is typically realized by adopting “pear texture” which is an uneven surface shape in which a flat portion is hardly formed on the top of the convex portion. According to the steering device having such a configuration, it is possible to further reduce the contact area between the contact surface and the supported portion by reducing the flat portion on the contact surface of the support portion. It is effective for obtaining a further suppression effect of noise.

  In a further aspect of the steering device according to the present invention, the support portion having the above-described configuration preferably has a configuration in which a corner portion on the horn switch mechanism side has a curved surface. This curved surface shape is typically formed by chamfering (also referred to as “curved surface processing” to (also referred to as “R processing”) to the corners on the horn switch mechanism side of each part of the support portion. According to the steering device having such a configuration, it is possible to suppress the catching phenomenon of the supported part on the horn switch mechanism side with respect to the support part, it is possible to suppress the generation of abnormal noise and noise generated by the catching phenomenon, It becomes possible to obtain a further suppression effect of abnormal noise and noise.

  In a further aspect of the steering apparatus according to the present invention, the horn switch mechanism having the above-described configuration includes a pressed portion, a first horn plate, a second horn plate, an urging mechanism, and a set of horn switch contacts. Is preferred. The to-be-pressed part is comprised as a site | part by which pressing operation by the passenger | crew was enabled. The first horn plate is configured as a metal horn plate provided on the pressed portion side. The second horn plate is configured as a metal horn plate that is disposed to face the first horn plate and constitutes a supported portion. The urging mechanism is interposed between the plates of the first and second horn plates and has a function of urging the first and second horn plates in the separating direction.

  In this configuration, the first horn plate approaches the second horn plate against the urging force of the urging mechanism by the pressing operation of the pressed portion, so that a pair of horn switch contacts come into contact with the horn output state. It is said. On the other hand, when the first horn plate is separated from the second horn plate according to the urging force of the urging mechanism by the pressing release operation of the pressed portion, the contact of the pair of horn switch contacts is released, and the horn output releasing state Is done. At this time, the operation of the pair of horn switch contacts may be configured to be interlocked with the relative operation of the first horn plate and the second horn plate. For example, one horn switch contact is provided on the first horn plate side, and A configuration in which the other horn switch contact is provided on the second horn plate side, or a set of horn switch contacts separately driven and spaced apart from the first horn plate or the second horn plate, A structure that operates in conjunction with the relative movement of the plate and the second horn plate can be appropriately employed. According to the steering device having such a configuration, it is possible to reduce noise and noise generated between the support portion on the steering wheel side and the second horn plate as the supported portion on the horn switch mechanism side by a simple structure. Can be obtained.

  It is preferable that the steering apparatus of the further form concerning this invention is further equipped with the airbag module, and the horn switch mechanism of the said structure was integrated in this airbag module. The airbag module is disposed within the outer shape of the steering wheel, and has a function of restraining the vehicle occupant by an airbag that is deployed and inflated in the occupant restraint region when the vehicle collides. According to such a configuration, in the steering device having a configuration in which the horn switch mechanism is incorporated in the airbag module, an effect of suppressing abnormal noise and noise generated between the steering wheel side and the horn switch mechanism side by a simple structure. Can be obtained.

  The steering wheel according to the present invention is configured as a steering wheel for steering a vehicle in which a horn switch mechanism capable of outputting a horn by a pressing operation of a pressed portion is incorporated. This steering wheel is configured to include at least a support portion. This support part is comprised as a resin-made support part which supports the to-be-supported part by the side of a horn switch mechanism. In addition, the support portion has a configuration in which the contact surface with the supported portion has an uneven shape similar to the uneven shape described above.

  According to such a configuration of the steering wheel according to the present invention, it is possible to obtain an effect of suppressing abnormal noise and noise generated between the steering wheel side and the horn switch mechanism side with a simple structure. That is, by making the contact surface with the supported portion of the support portion on the steering wheel side uneven, the contact area between the support portion on the steering wheel side and the supported portion on the horn switch mechanism side is reduced. Thus, the frictional resistance can be reduced, and thus the generation of abnormal noise and noise can be suppressed. In addition, if a configuration in which unevenness is applied to the contact surface of the support portion made of a resin material is employed, it is simpler than a configuration in which unevenness processing is performed on the metal supported portion on the horn switch mechanism side. The method and configuration allow low-cost concavo-convex processing with low cost and the concavo-convex processing does not directly affect the proper operation of the horn switch mechanism, ensuring the reliability of horn operation. It becomes possible.

  In a further aspect of the steering wheel according to the present invention, the contact surface of the above configuration is formed with a concavo-convex shape by a plurality of projecting portions projecting sharply toward the horn switch mechanism side, and the plurality of projecting portions It is preferable that it is the structure which contact | abuts to a to-be-supported part in the top part. According to the steering wheel having such a configuration, it is possible to further reduce the contact area between the contact surface and the supported portion by reducing the flat portion on the contact surface of the support portion. It is effective for obtaining a further suppression effect of noise.

  In a further aspect of the steering wheel according to the present invention, it is preferable that the support portion having the above-described configuration has a configuration in which a corner portion on the horn switch mechanism side is curved. According to the steering wheel having such a configuration, it is possible to suppress the catching phenomenon of the supported part on the horn switch mechanism side with respect to the support part, and it is possible to suppress the generation of abnormal noise and noise generated by the catching phenomenon, It becomes possible to obtain a further suppression effect of abnormal noise and noise.

  As described above, according to the present invention, in the steering device in which the horn switch mechanism is incorporated in the steering wheel for steering the vehicle mounted on the vehicle, the resin support that supports the supported portion on the horn switch mechanism side in particular. By adopting a configuration in which the contact surface with the supported part has an uneven shape, the effect of suppressing abnormal noise and noise generated between the steering wheel side and the horn switch mechanism side by a simple structure is adopted. It became possible to get.

  Hereinafter, a steering apparatus 100 according to an embodiment of the “steering apparatus” of the present invention will be described. 1 and 2 are referred to regarding the appearance of the steering device 100. FIG. FIG. 1 is a perspective view of the steering device 100 according to the present embodiment, and shows the steering wheel 101 and the airbag module 110 in a separated state. FIG. 2 is a perspective view of the steering wheel 101 with the airbag module 110 in FIG. 1 in a detached state.

  As shown in FIG. 1, the steering device 100 according to the present embodiment includes at least an annular steering wheel 101 used by a driver for vehicle steering, and an airbag module 110 mounted in the outer shape of the steering wheel 101. Yes. The steering wheel 101 here corresponds to the “steering wheel for vehicle steering” in the present invention.

  As shown in FIG. 2, the components of the steering wheel 101 are roughly divided into a steering wheel core metal 102, a covering portion 103, and a garnish 104. The steering wheel mandrel 102 is a mandrel part that forms the wheel skeleton of the steering wheel 101, and is provided as a skeleton part that secures the strength of the steering wheel 101 itself. . The steering wheel metal core 102 is typically made of a magnesium alloy, an aluminum alloy, or the like, and includes at least an annular portion 102a, a boss portion 102b, and a spoke portion 102c that are formed in an annular shape. The annular portion 102a is configured as a portion formed in an annular shape in the steering wheel core metal 102 so as to define the outer shape of the wheel. The annular portion 102a is typically configured as a portion having a cylindrical, semicircular, semi-elliptical, substantially C-shaped or substantially U-shaped cross section. The boss portion 102 b is configured as a portion connected to a steering shaft (not shown) as a vehicle steering shaft in the central region of the steering wheel core metal 102. The spoke part 102c is configured as a part for connecting the annular part 102a and the boss part 102b, and FIG. 2 shows a case where three spoke parts 102c are provided.

  The covering portion 103 is configured as a covering portion made of a resin material that covers the steering wheel core metal 102. That is, the covering portion 103 is a resin layer when the steering wheel mandrel 102 is resin-molded. Typically, the covering portion 103 attached to the steering wheel core metal 102 is formed by injection molding using an industrial resin such as polypropylene (PP) resin, acrylonitrile butadiene styrene (ABS) resin, urethane resin, or the like.

  The garnish 104 is fixed to the steering wheel 101 so as to be interposed between the steering wheel 101 and the airbag module 110 and function as a decorative part of the steering wheel 101. In this embodiment, the garnish 104 is made of a resin material. Although details will be described later, in this embodiment, a supported portion (a contact plate 122 described later) on the airbag module 110 side is supported by a support portion (a support portion 105 described later) provided on the garnish 104. It is supposed to be configured.

  Next, the airbag module 110 and its peripheral structure according to the present embodiment will be described with reference to FIG. Here, FIG. 3 shows a cross-sectional structure of the steering device 100 of the present embodiment.

  As shown in FIG. 3, in the present embodiment, the airbag module 110 mounted in the outer shape of the steering wheel 101 having the above-described configuration includes an airbag 112, a retainer 114, a module cover (“module pad” or “airbag”). 116 ”(also referred to as a“ cover ”), an inflator 118, and a horn switch mechanism 120. The airbag module 110 here corresponds to the “airbag module” in the present invention.

  The airbag 112 is configured as an airbag body that is accommodated in the retainer 114 in a state of being folded into a predetermined shape in advance. The air bag 112 is covered by the module cover 116 before the vehicle collision, and the module cover 116 is tear-lined by supplying a gas for deployment and inflation from the inflator 118 at the time of the vehicle collision. While being cleaved according to (not shown), it expands and expands toward an occupant restraint region where the occupant is restrained. A horn switch mechanism 120 is disposed on the back side of the module cover 116. The cover surface of the module cover 116 is a pressed portion where a pressing operation is performed when operating the horn unit. The module cover 116 here corresponds to a “pressed portion” in the present invention.

  The horn switch mechanism 120 includes at least a horn plate 121, a contact plate 122, and a spring portion 123. The horn plate 121 is configured as a plate-shaped (plate-shaped) metal member, and is attached to the module cover 116 and the retainer 114 by fixing means such as rivets. The horn plate 121 is provided with a first horn switch contact 124. On the other hand, the contact plate 122 is configured as a plate-like (plate-like) metal member similar to the horn plate 121, and is fixed to the horn plate 121 side via a spring portion 123. The contact plate 122 is provided with a second horn switch contact 125. The spring portion 123 is configured by a spring that elastically biases the horn plate 121 and the contact plate 122 in directions away from each other. An insulating material (not shown) is interposed on the horn plate 121 side or the contact plate 122 side of the spring portion 123. The horn switch mechanism 120 here corresponds to the “horn switch mechanism” in the present invention. Further, the horn plate 121, the contact plate 122, and the spring portion 123 referred to here correspond to the “first horn plate”, the “second horn plate”, and the “biasing mechanism” in the present invention, respectively. Further, the first horn switch contact 124 and the second horn switch contact 125 referred to here constitute a “one set of horn switch contacts” in the present invention.

  In the horn switch mechanism 120 having such a configuration, when the module cover 116 (pressed portion) is pressed by a driver who wants to blow a horn (also referred to as “horn”), the horn plate 121 is moved to the spring portion 123. It approaches the contact plate 122 side against the elastic urging force. When the horn plate 121 moves to the contact plate 122 side until the first horn switch contact 124 on the horn plate 121 side and the second horn switch contact 125 on the contact plate 122 contact each other, An air compression horn unit (not shown) is activated, and the horn is output as vibration sound. On the other hand, the pressing operation is released, and the horn plate 121 is separated from the contact plate 122 according to the elastic biasing force of the spring portion 123, and the first horn switch contact 124 on the horn plate 121 side and the first horn switch contact 124 on the contact plate 122 side are separated. When the contact with the second horn switch contact 125 is released, the operation of the horn unit is released and the output of the horn is stopped.

  When the airbag module 110 is assembled to the steering wheel 101, the contact plate 122 of the horn switch mechanism 120 having the above configuration, that is, the entire airbag module 110 is provided on the garnish 104 on the steering wheel 101 side. 105 is supported from below (see FIG. 3). In the present embodiment, the contact plate 122 is supported by the three support portions 105 of the garnish 104 (see FIG. 2). In this supported state, the airbag module 110 is attached and fixed to the steering wheel 101 by fixing means (not shown). In connection with this configuration, a member other than the contact plate 122 provided on the horn switch mechanism 120 side may be supported by the support portion 105.

  By the way, in a state where the airbag module 110 is assembled to the steering wheel 101, rubbing between the support portion 105 on the steering wheel 101 side and the contact plate 122 on the airbag module 110 side (“the support portion 105 and the contact point”). There is a concern that abnormal noise and noise may occur due to the “phase difference with the plate 122”. Such abnormal noise and noise are typically generated by a load that the steering wheel 101 receives from an occupant when the vehicle gets on and off. Thus, in the present embodiment, the surface of the resin support 105 on the steering wheel 101 side is newly subjected to surface processing to suppress the generation of the abnormal noise and noise. FIG. 4 is referred to regarding the surface shape of the support portion 105 subjected to the surface processing. FIG. 4 shows a partially enlarged view of region A in FIG.

  As shown in FIG. 4, in the present embodiment, the support portion upper surface 105a of the support portion 105 that contacts the contact plate lower surface 122a of the contact plate 122 has an uneven shape (uneven surface shape) subjected to uneven processing. Specifically, the uneven surface is formed by applying a processing method such as embossing, blasting, electric discharge processing, lapping, or laser processing to the resin support portion upper surface 105a. This concavo-convex surface is also referred to as “textured surface” which is an uneven surface shape in which a flat portion is hardly formed on the top of the convex portion, and “leather wrinkle” which is an uneven surface shape in which a flat portion is formed on the top of the convex portion. . The support portion 105 referred to here corresponds to a “support portion” in the present invention, and a support portion upper surface 105a of the support portion 105 corresponds to a “contact surface” in the present invention. Further, the uneven shape (uneven surface shape) of the upper surface 105a of the support portion corresponds to the “uneven shape” in the present invention. The contact plate 122 or the contact plate lower surface 122a of the contact plate 122 corresponds to the “supported portion on the horn switch mechanism side” in the present invention.

  According to such a configuration, it is possible to obtain an effect of suppressing abnormal noise and noise generated between the steering wheel 101 side and the horn switch mechanism 120 side with a simple structure. That is, the contact area between the support upper surface 105a of the support 105 and the contact plate lower surface 122a of the contact plate 122 is reduced by making the support upper surface 105a of the support 105 on the steering wheel 101 side uneven. As a result, the frictional resistance can be reduced, so that the generation of abnormal noise and noise can be suppressed. In particular, it is preferable to employ “textured surface” which is an uneven surface shape in which a flat portion is hardly formed on the top of the convex portion. In this configuration, since the uneven shape is formed by the plurality of protruding portions in which the flat portion protruding sharply toward the contact plate lower surface 122a side of the contact plate 122 is formed, the support portion 105, the contact plate 122, Since it is possible to further reduce the contact area between the two, it is effective to further enhance the effect of suppressing abnormal noise and noise.

  The present embodiment is characterized in that the above-described concavo-convex processing is performed on the support part upper surface 105a of the support part 105 made of a resin material in particular. Although it is envisaged that the contact plate 122 is subjected to uneven processing on the lower surface 122a of the contact plate 122, if this configuration is adopted, the contact plate 122 is made of a metal material, so that the contact plate 122 can be processed with high dimensional accuracy. In addition, it is difficult to apply, and the processing cost is high, and there is a concern that the original proper operation of the horn switch mechanism 120 may be affected by applying uneven processing to the contact plate 122 constituting the horn switch mechanism 120. Therefore, if a configuration in which unevenness processing is performed on the support portion upper surface 105a of the support portion 105 formed of a resin material as in the present embodiment is adopted, the unevenness with high dimensional accuracy can be achieved at low cost by a simple method and configuration. Processing can be performed, and since the uneven processing does not directly affect the proper operation of the horn switch mechanism 120, it is possible to ensure the reliability of the horn operation.

  Further, in the present embodiment, as shown in FIG. 4, chamfering (“curved surface processing” to (“R processing”) is performed on the corner portion of the support portion upper surface 105a of the support portion 105, particularly the corner portion 105b on the contact plate 122 side. The corner portion 105b referred to here corresponds to the “horn portion on the horn switch mechanism side” in the present invention. According to such a configuration, the contact plate 122 with respect to the support portion 105 is provided. The catching phenomenon can be suppressed, the generation of abnormal noise and noise caused by the catching phenomenon can be suppressed, and the effect of preventing further abnormal noise and noise can be obtained. The curved surface shape can be substituted by a shape for the purpose of chamfering the corner portion 105b, and an inclined shape or a step shape may be adopted in addition to the curved surface shape. It is according to the design specifications of the garnish 104 can be omitted a curved shape of the corner portion 105b.

  In the present invention, the following configuration can be adopted in relation to the configuration described in the above embodiment. That is, according to the present invention, “a steering device in which a horn switch mechanism capable of outputting a horn by a pressing operation of a pressed portion is incorporated in a steering wheel for vehicle steering, wherein the steering wheel includes the horn switch A structure including a support portion that supports a supported portion on the mechanism side, and a resin-made resin portion in which a contact surface with the other has an uneven shape is provided on one of the support portion and the supported portion. It is possible to adopt a configuration of “a steering apparatus characterized by being”. Even with such a configuration, as in the case of using the steering device 100 of the present embodiment, it is possible to obtain an effect of suppressing abnormal noise and noise generated between the steering wheel side and the horn switch mechanism side with a simple structure. The effect that it becomes possible will be achieved.

(Other embodiments)
In addition, this invention is not limited only to said embodiment, A various application and deformation | transformation can be considered. For example, each of the following embodiments to which the above embodiment is applied can be implemented.

  In the above-described embodiment, the steering device 100 in which the horn switch mechanism 120 is mounted on the airbag module 110 has been described, but the steering device in which the horn switch mechanism (horn button) is disposed on the spoke portion of the steering wheel or the like is described. The present invention can also be applied. Even in such a configuration, with respect to the configuration of the resin support portion that supports the supported portion on the horn switch mechanism side, by adopting a configuration in which the contact surface with the supported portion is an uneven shape, Similarly to the steering apparatus 100 of the embodiment, it is possible to obtain an effect of suppressing abnormal noise and noise generated between the steering wheel side and the horn switch mechanism side with a simple structure.

  In the above-described embodiment, the first horn switch contact 124 is provided on the horn plate 121 side, and the second horn switch contact 125 is provided on the contact plate 122 side. The operation of the pair of horn switch contacts only needs to be configured so as to be interlocked with the relative operation of the horn plate 121 and the contact plate 122. For example, a set of horns that are separately driven and disposed away from the horn plate 121 and the contact plate 122. A configuration in which the switch contact is interlocked with the relative operation of the horn plate 121 and the contact plate 122 may be employed.

  In the above embodiment, the configuration of the steering device of the automobile has been described. However, the present invention can be applied to the configuration of the steering device in all moving bodies such as vehicles other than the automobile, such as buses, taxis, ships, and trains. Technology.

It is a perspective view of steering device 100 of this embodiment, and shows steering wheel 101 and airbag module 110 as a separation state. FIG. 2 is a perspective view of the steering wheel 101 with the airbag module 110 in FIG. 1 in a detached state. It is a figure which shows the cross-section of the steering device 100 of this Embodiment. It is the elements on larger scale of the A area | region in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Steering device 101 Steering wheel 102 Steering wheel core metal 102a Annular part 102b Boss part 102c Spoke part 103 Cover part 104 Garnish 105 Support part 105a Support part upper surface 105b Corner part 110 Air bag module 112 Air bag 114 Retainer 116 Module cover 118 Inflator 120 Horn switch mechanism 121 Horn plate 122 Contact plate 122a Contact plate lower surface 123 Spring portion 124 First horn switch contact 125 Second horn switch contact

Claims (8)

A steering device in which a horn switch mechanism that enables horn output by a pressing operation of a pressed portion is incorporated in a steering wheel for vehicle steering,
The steering wheel includes a resin support portion that supports a supported portion on the horn switch mechanism side, and the support portion has a configuration in which a contact surface with the supported portion is an uneven shape. Steering device. The steering apparatus according to claim 1,
The contact surface is formed with the concavo-convex shape by a plurality of projecting portions projecting sharply toward the horn switch mechanism side, and is configured to contact the supported portion at the top of the plurality of projecting portions. A steering device characterized by the above. The steering apparatus according to claim 1 or 2,
The support device has a configuration in which a corner portion on the horn switch mechanism side has a curved shape. The steering apparatus according to any one of claims 1 to 3,
The horn switch mechanism includes a pressed portion that can be pressed by an occupant, a metal first horn plate provided on the pressed portion side, and a first horn plate that is disposed opposite to the first horn plate. A second horn plate made of metal that constitutes the support portion, and a biasing mechanism that biases the first and second horn plates in a direction away from each other, interposed between the plates of the first and second horn plates; Including a set of horn switch contacts,
As the first horn plate approaches the second horn plate against the urging force of the urging mechanism by the pressing operation of the pressed portion, the pair of horn switch contacts come into contact with the horn output state. On the other hand, when the first horn plate is separated from the second horn plate according to the urging force of the urging mechanism by the pressing release operation of the pressed portion, the contact of the pair of horn switch contacts is performed. A steering device having a configuration in which the horn output is released by being released. The steering apparatus according to any one of claims 1 to 4,
An airbag module that is disposed within the outer shape of the steering wheel and that restrains a vehicle occupant by an airbag that expands and inflates in the occupant restraint region in the event of a vehicle collision, and the horn switch mechanism is incorporated in the airbag module. There is a steering device. A steering wheel for steering a vehicle incorporating a horn switch mechanism capable of outputting a horn by a pressing operation of a pressed part,
A steering wheel comprising: a resin support portion that supports a supported portion on the horn switch mechanism side, wherein the support portion has a configuration in which a contact surface with the supported portion is uneven. A steer wheel according to claim 6,
The contact surface is configured by a plurality of projecting portions projecting sharply toward the horn switch mechanism side, and is configured to contact the horn switch mechanism at the top of the plurality of projecting portions. A characteristic steering wheel. The steering wheel according to claim 6 or 7,
The steering wheel according to claim 1, wherein the support portion has a curved corner portion on the horn switch mechanism side.

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