JP2015178283A - Steering wheel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a steering wheel capable of suppressing reaction force from a finisher during the plastic deformation of a spoke portion due to excessive force input, and corresponding to downsizing.SOLUTION: A finisher 14 is equipped with a screwing portion and a fixing pin which are fixed to a boss portion 18 and a lower spoke portion. The finisher 14 is equipped with a locking pin detachably attached to a side part spoke portion 22. The side part spoke portion 22 is equipped with an inclined surface portion 77 inclining to the opposite occupant side from a rim portion 17 side toward a boss portion 18 side and opposing to the finisher 14. When a spoke portion 19 is plastically deformed due to the input of excessive force, the locking pin is separated from the side part spoke portion 22, and the finisher 14 is escaped from the side part spoke portion 22 to the boss portion 18 side by the inclined surface portion 77, so that reaction force from the finisher 14 can be suppressed. It is not needed to provide, for example, a shock absorber and the like on the finisher, and downsizing can be materialized.

Description

  The present invention relates to a handle provided with a finisher attached to cover a part of the handle body.

  Conventionally, in a vehicle such as an automobile, an annular rim portion for operation, a boss portion located inside the rim portion and coupled to the vehicle body side, and a plurality of rim portions and the boss portions are connected to each other. A steering wheel is used as a handle having a steering wheel body including a spoke portion. A module such as an airbag device is attached to the boss portion, and a finisher for covering the gap portion between the module and the spoke portion to improve the aesthetic appearance is attached.

  In recent years, for the purpose of protecting the occupant in the event of a car collision or the like, the cored bar of the spoke portion of the steering wheel body is plastically deformed when an excessive force is applied. When the core metal of the spoke part is plastically deformed in this way, it is required that the finisher does not interfere with the absorption of the force by attaching to the spoke part.

  As such a configuration, a box-like impact absorbing portion is provided on the finisher to suppress a reaction force from the finisher side when an excessive force is applied (see, for example, Patent Document 1). .

JP 2002-347630 A (page 4-6, FIG. 1-2)

  In the case of the above-described configuration, it is required to further reduce the size so that the finisher of the shock absorbing portion does not become large. In addition, when the finisher is provided with functions such as various switches, it is not easy to provide the above-described shock absorbing portion, and another shock absorbing structure is required.

  The present invention has been made in view of the above points, and an object thereof is to provide a handle that can suppress reaction force from the finisher at the time of plastic deformation of a spoke portion due to input of excessive force, and can cope with downsizing. And

  The handle according to claim 1 is a handle body including an operation rim portion, a boss portion connected to the vehicle body, and a plurality of spoke portions connecting the rim portion and the boss portion, and a part of the handle body. A finisher attached to cover the fixed portion, which is fixed to at least one of the boss portion and one of the spoke portions, and separated from the other spoke portion. The other spoke portion is provided with an inclined surface portion that is inclined from the rim portion side toward the boss portion side toward the non-occupant side and opposed to the finisher. .

  The handle according to claim 2 is the handle according to claim 1, wherein the other spoke parts are a metal spoke cored bar, a flexible spoke covering part covering a part of the spoke cored bar, and the spoke. And a hole portion that is provided in the covering portion and into which the finisher attached portion is inserted and attached.

  The handle according to claim 3 is the handle according to claim 2, wherein the finisher is provided with a switch device for pushing operation, and the other spoke portion is provided in the spoke covering portion and supports the switch device in opposition to the pushing operation. It is provided with a planar plane portion.

  According to the handle of the first aspect of the present invention, in the normal state, the fixed portion of the finisher is fixed to at least one of the boss portion and the one spoke portion, and the attached portion is attached to the other spoke portion. In this way, a state in which a part of the handle body is securely covered is maintained. When the spoke part is plastically deformed due to excessive force input, the finisher separates the other spoke from the other spoke part by the inclined surface part inclined from the rim part side toward the boss part side toward the occupant side. It can escape from the part to the boss part side, and can suppress the reaction force from the finisher. For example, it is not necessary to separately provide a shock absorbing portion or the like in the finisher, and it can be reduced in size.

  According to the handle according to claim 2, in addition to the effect of the handle according to claim 1, the finisher attached portion is formed in the hole provided in the flexible spoke covering portion that covers a part of the metal spoke core metal. When the spoke portion is plastically deformed by an excessive force input, the hole portion is easily torn and the attached portion can be easily detached.

  According to the handle according to claim 3, in addition to the effect of the handle according to claim 2, the switch device is supported by the flat portion provided in the spoke covering portion of the other spoke portion so as to be opposed to the pressing operation, thereby It is possible to prevent the finisher from being displaced at the time of pushing the device and to ensure the operability of the switch device.

FIG. 9 shows an embodiment of the handle of the present invention, where (a) is a cross-sectional view at a position corresponding to II in FIG. 9, and (b) is II in FIG. 9 with an excessive force being input to the handle. It is sectional drawing which shows an equivalent position typically. (A) is sectional drawing of the II-II equivalent position of FIG. 9, (b) is sectional drawing which shows typically the II-II equivalent position of FIG. 9 in the state in which excessive force was input into the handle | steering-wheel. It is a perspective view which expands and shows a part of FIG. It is sectional drawing of the III-III equivalent position of FIG. It is sectional drawing of the IV-IV equivalent position of FIG. It is sectional drawing of the position equivalent to VV of FIG. The finisher of a steering wheel is shown, (a) is the front view, and (b) is the side view. It is a perspective view of a part of the handle. It is a front view of a part of handle same as the above. It is a front view of a handle same as the above.

  Hereinafter, an embodiment of a handle of the present invention will be described with reference to the drawings.

  In FIG. 10, reference numeral 10 denotes a steering wheel as a steering wheel. The steering wheel 10 is disposed in front of an occupant in a driver's seat of an automobile. The steering wheel main body 11 as a steering wheel main body and the occupant side of the steering wheel main body 11 A module 12 such as an installed airbag device, a cover body (body cover) 13 (FIG. 9) as a covering member attached to the side opposite to the occupant of the steering wheel body 11, and a finisher attached to the occupant side of the steering wheel body 11. It consists of 14 and so on.

  The steering wheel 10 is attached to a steering shaft as a steering device (not shown) that is normally provided in an inclined state. Hereinafter, the module 12 side is the occupant side, the front side or the rear side, and the steering shaft side is The front and rear direction along the steering shaft is defined as the axial direction on the vehicle body side, the back surface side, or the front side, and other directions such as the front and rear direction and the vertical direction are described with reference to the straight traveling direction of the vehicle body on which the steering wheel 10 is provided. .

  As shown in FIGS. 8 to 10, the steering wheel main body 11 includes a metal core 15 and a soft covering portion 16 that integrally covers a part of the core 15. The steering wheel body 11 includes an annular rim (ring part) 17, a boss part (mount part) 18 positioned inside the rim part 17, and the rim part 17 and the boss part 18. For example, three spoke portions 19 are connected in the present embodiment. That is, the spoke portion 19 includes a pair of lower spoke portions 21 that are one spoke portion connecting the rim portion 17 and the lower portion of the boss portion 18, and a pair of both sides connecting the rim portion 17 and both sides of the boss portion 18 respectively. A side spoke portion 22 which is another spoke portion is set.

  The metal core 15 includes a rim metal core 24, a boss metal core 25, and a spoke metal core 26 that form part of the rim portion 17, the boss portion 18, and the spoke portion 19. The boss core 25 is also called a boss plate or a hub core. The boss core 25 includes a cylindrical boss 25a fitted to the steering shaft. The boss 25a is placed in a mold and insert molding such as magnesium alloy is performed. A part of the boss core 25, an annular rim core 24 and a spoke core 26 arranged radially are integrally formed. The core 15 is deformed and moved in a state where a large force is applied in order to protect the occupant, and absorbs an impact. Since the steering wheel main body 11 has a substantially bilaterally symmetric shape (substantially symmetrical in the vehicle width direction), only the right side (one side) is shown in FIGS. 1 to 7 for clarity of explanation. The illustration about the left side (other side) is omitted.

  Although not shown, the rim core metal 24 is formed with easy-to-deform portions that are thinner and easier to deform than other portions of the rim core metal 24 at positions such as the lower side portions. An excessive load is absorbed by the deformed portion.

  Fixing portions 28 and 28 that are screw bosses for fixing the finisher 14 with screws (screws) 27 that are fixing members are provided on both sides of the upper end portion of the boss core 25. Also, the boss cored bar 25 is provided with bossed cored bar lower connecting parts 31 and 31 and (one and other) bossed cored bar side connecting parts 32 and 33 that are connected to the spoke cored bar 26, respectively. Yes.

  The fixing portions 28, 28 are in the vicinity of the boss core metal side connection portions 32, 33, that is, in the vicinity of the connection portion between the boss core metal 25 and the spoke core metal 26, in other words, on the boss core metal 25 side of the spoke core metal 26. Located near the root. These fixing portions 28 are positioned at the tip end portions of the extending portions 35 that extend upward from the boss core 25.

  The boss mandrel lower connecting portions 31 and 31 are spaced apart on both sides of the lower end portion of the boss mandrel 25, and project downward.

  The boss core metal side connecting portions 32 and 33 are provided so as to protrude vertically on both sides of the boss core metal 25. Each boss mandrel side portion connecting portion 32 protrudes laterally at a side portion on the proximal end side of the extending portion 35. In addition, each boss core metal side connecting portion 33 protrudes in a plate shape along the side edge of the boss core 25 toward the front side.

  The spoke cored bar 26 includes a lower spoke cored bar 37 that is a part of the lower spoke part 21 and extends downward from the lower side part of the bossed cored bar 25, and a pair of side spokes on both sides. A side spoke cored bar 38 which is a pair of spoke cored bars on both sides extending from the upper side of the bossed cored bar 25 to both sides.

  The lower spoke core metal 37 includes a plate-shaped first lower connection portion (not shown) that is a first connection body portion whose lower end portion is connected to the lower inner edge of the rim core metal 24, and the first lower portion. A second long and narrow prismatic (rod-shaped) second connecting body portion extending from the upper end portion of the connecting portion and having the upper end portion connected to the lower boss core metal connecting portion 31, 31 at the lower portion of the boss metal core 25. 2 lower connecting portions 42, 42. The lower spoke core metal 37 is formed radially along the radial direction of the rim core metal 24.

  The first lower connecting portion extends upward from the inner edge of the lower portion of the rim core bar 24 in an inclined manner in the back direction. That is, the first lower connecting portion is inclined forward toward the center side of the steering wheel main body 11 (the boss core 25 (boss portion 18) side). The first lower connecting portion is covered and covered by the covering portion 16 and is not exposed to the outside.

  Each of the second lower connecting portions 42 protrudes from the upper end portion of the first lower connecting portion at a position separated left and right, and bends in the back direction with respect to the first lower connecting portion. It extends like so. That is, these second lower connecting portions 42 are inclined forwardly toward the center side of the steering wheel body 11 (boss metal core 25 (boss portion 18) side) more steeply than the first lower connecting portions. Yes. Accordingly, the lower spoke core metal 37 is bent in a step shape as a whole so as to connect the rim core metal 24 and the boss core metal 25.

  Further, each side spoke core metal 38 is a plate-like first side part which is a first connection body having one end part (one side part) connected to the inner edge of one side part of the rim core metal 24. A connecting portion 44, a flat connecting portion 45 provided at the other end (other side portion) of the first side connecting portion 44, and one side of the boss core 25 extending from the flat connecting portion 45. And second side connecting portions 46 and 47 (one and the other) which are long and narrow prismatic (rod-like) (one and other) connecting bodies connected to the respective portions.

  Each of the first side connecting portions 44 extends in an inclined manner from the inner edge of one side portion of the rim core metal 24 toward the back side toward the center side of the rim core metal 24. That is, the first side connecting portion 44 is inclined forward toward the center side of the steering wheel main body 11 (the boss core 25 (boss portion 18) side). The first side connecting portion 44 is covered with the covering portion 16 and is not exposed to the outside.

  The plane connecting portion 45 is not inclined in the front-rear direction, and is formed in a planar shape in the vehicle width direction along the edge of the first side connecting portion 44 opposite to the rim core metal 24. ing. The planar connecting portion 45 is covered and included in the covering portion 16, and is not exposed to the outside.

  Each of the second side connecting portions 46 and 47 protrudes from the side portion of the first side connecting portion 44 on the boss core metal 25 side so as to be spaced apart from each other. It extends in an inclined manner toward the back surface with respect to the side connection portion 44. That is, each of the second side connecting portions 46 and 47 is forwardly directed toward the center side of the steering wheel body 11 (the boss core 25 (boss portion 18) side). The slope is steeper than. Therefore, each side spoke core metal 38 is bent in a step shape as a whole and connects the rim core metal 24 and the boss core metal 25. Further, each second side connecting portion 46 is connected to each boss core metal side connecting portion 32 at an end opposite to each first side connecting portion 44. Accordingly, each second side connecting portion 47 is connected to the boss core 25 in the vicinity (downward) of the extending portion 35 and the fixing portion 28. Further, each second side connecting portion 47 is connected to the rear end portion of each boss core metal side connecting portion 33 at the end opposite to each first side connecting portion 44. And these 2nd side part connection parts 46 and 47 do not have a corner | angular part with respect to the plane connection part 45 and each boss | hub metal core side part connection parts 32 and 33 so that it may continue gradually. It has become.

  The covering portion 16 includes a rim covering portion 51 that covers the outer peripheral portion of the rim core metal 24, and a spoke covering portion 52 that covers the outer peripheral portion of the spoke core metal 26 on the rim portion 17 side, for example, soft foam It is made of a synthetic resin such as polyurethane and has flexibility, and a skin 53 is provided on a part of the surface.

  The rim covering portion 51 is a portion that is directly gripped by the occupant and is formed so as to include the entire rim core metal 24. The rim covering portion 51 is entirely covered with the epidermis 53.

  The spoke covering portion 52 is not covered by the module 12 and the finisher 14 attached to the steering wheel main body 11, but is exposed to the outside by the skin body 53, and the portion facing the module 12 and the finisher 14 is the skin body 53. Not covered by. In the spoke covering portion 52, a lower spoke covering portion 55 that covers the lower spoke core metal 37 and a side spoke covering portion 56 that covers each side spoke core metal 38 are set.

  The lower spoke covering portion 55 covers and covers the first lower connecting portion side, that is, the lower side excluding the first lower connecting portion of the lower spoke core metal 37 and the upper ends of the second lower connecting portions 42 and 42. Yes. That is, the lower spoke covering portion 55 continuously covers the lower spoke core metal 37 below the rim core metal 24 and the rim coating portion 51 continuously. Further, a lower facing surface portion 58 that is in close contact with the lower portion of the module 12 and is opposed to the lower portion of the module 12 is formed at the upper end portion of the lower spoke covering portion 55. Further, the lower spoke covering portion 55 is fitted to the lower ends of the finishers 14 and 14 attached to the steering wheel main body 11 on both sides thereof, and is a lower fitting that is a first fitting portion covered by the finishers 14 and 14. Joint portions 59, 59 are recessed. The lower fitting portions 59 and 59 are round hole-shaped fixing holes into which a part of the finishers 14 and 14 are inserted from the front side and a part of the finishers 14 and 14 are inserted and held ( Lower holes 61 and 62 (one and the other) are respectively recessed.

  The lower hole portions 61 and 62 are formed at positions separated from each other in the vertical direction. These lower hole portions 61 and 62 are closer to the center side in the vehicle width direction of the steering wheel main body 11 than the fixed portions 28 and 28 of the boss core metal 25 and the second spoke core metal 37 of the spoke core metal 26. They are arranged at positions on the outer side of the lower connecting portion 42, respectively. These lower hole portions 61 and 62 are formed in a longitudinal shape in the front-rear direction and do not penetrate the lower spoke covering portion 55. Inside the lower hole 61 is a (one) step for locking the finisher 14 on the second lower connecting portion 42 side of the lower spoke core metal 37, that is, on the center side in the vehicle width direction of the steering wheel body 11. A portion 61a is formed. In addition, a step portion 62a for locking the finisher 14 is formed in the lower hole portion 62 over the entire circumference.

  Each side spoke covering portion 56 covers and includes the first side connecting portion 44, the plane connecting portion 45, and the second side connecting portion 46 of the side spoke core metal 38. The part connecting part 47 is not covered. Each side spoke covering portion 56 is provided with a side fitting portion 64 as another fitting portion that is recessed, and is located on the side portion fitting portion 64 and is connected to the side spoke core metal 38. A first covering portion 65 that covers one side connecting portion 44, a second covering portion 66 that covers a part of the planar connecting portion 45, and a third covering portion 67 that covers the second side connecting portion 46. Are integrally provided, and the inner edge portion of the side fitting portion 64 is a wall portion 68 that faces the side portion or the upper portion of the finisher 14 attached to the steering wheel main body 11.

  Side fitting portion 64 is formed to communicate with the lower side of side spoke covering portion 56.

  The first covering portion 65 is a facing surface portion 71 that is inclined so that the front side, that is, the surface side facing the finisher 14 attached to the steering wheel body 11 is substantially parallel to the first side connecting portion 44. . Further, at the lower part of the first covering portion 65, a long rectangular parallelepiped protrusion 72 is raised in the front direction along the vehicle width direction on the rim covering portion 51 side continuous with the wall portion 68. Yes. The projecting portion 72 is recessed with a circular hole 73 into which a part of the finisher 14 is inserted and held.

  The facing surface portion 71 is a portion that faces or contacts the back surface of the finisher 14 attached to the steering wheel main body 11 at a distance of, for example, 1 mm or less, and wraps with the finisher 14 in the vehicle width direction when viewed from the front side.

  The hole 73 is formed in a longitudinal shape in the front-rear direction, and does not penetrate the side spoke covering portion 56. Inside the hole 73, a part of the finisher 14 attached to the steering wheel body 11 can be detached from the rim core 24 (rim part 17) side, that is, outside the steering wheel body 11 in the vehicle width direction. A locking step 73a for stopping is formed.

  The second covering portion 66 is formed in a planar shape along the vehicle width direction so that the surface side facing the finisher 14 attached to the steering wheel main body 11 is substantially parallel to the planar connecting portion 45. The surface is a flat surface portion 75 that contacts the finisher 14 and supports the finisher 14. That is, the flat portion 75 is a portion that wraps in the vehicle width direction with the finisher 14 when viewed from the front side, is not inclined in the front rear direction, and is smaller in the vehicle width direction than the facing surface portion 71. It is formed (narrowly) and continues to the side edge portion of the facing surface portion 71.

  The third covering portion 67 has a front surface side that is spaced from the back side of the finisher 14 attached to the steering wheel main body 11 with respect to the second covering portion 66 (planar portion 75). It is curved and continuous, and is inclined so as to be substantially parallel to the second side connecting portion 46. In addition, a plurality of positioning recesses 76 for positioning the cover body 13 are provided on the back surface side which is the back surface side of the third covering portion 67. The surface of the third covering portion 67 and the surface of the second side connecting portion 47 not covered by the third covering portion 67 (covering portion 16 (spoke covering portion 52)) are the rim portion. The inclined surface portion 77 is inclined forward from the 17 side toward the boss portion 18 side, which is a direction away from the occupant. The inclined surface portion 77 guides the finisher 14 that has been removed from the steering wheel body 11 due to excessive force to the front away from the occupant, and is gently curved and continuous with respect to the flat surface portion 75. It is steeper forward than the facing surface portion 71, for example, at an angle of 45 ° or more with respect to the vehicle width direction. That is, the flat surface portion 75 is interposed between the inclined surface portion 77 and the facing surface portion 71. Further, the inclined surface portion 77 is separated from the finisher 14 attached to the steering wheel main body 11 on the back side (front side) with respect to the facing surface portion 71 and the flat surface portion 75.

  The wall portion 68 includes a side wall portion 78 that is a first wall portion located between the rim covering portion 51 and the side portion of the first covering portion 65, and first to third covering portions 65, 66, 67. The upper wall part 79 which is a 2nd wall part located continuously over the upper part of this is provided.

  The side wall portion 78 is substantially entirely covered with the epidermis 53 on the surface side. Further, the side wall 78 has a plurality of long holes (slits) for locking the side of the finisher 14 on the side opposite to the boss 18 (anti-boss core 25) (on the side opposite to the module 12), for example, A pair of locking hole portions 81 are provided at positions closer to the upper side and are vertically spaced apart from each other and penetrate in the vehicle width direction.

  A support receiving portion 83 that supports a part of the finisher 14 attached to the steering wheel main body 11 is provided on the upper wall portion 79 at a position above the flat portion 75 of the third covering portion 67. The surface side of the support receiving portion 83 and the portion excluding the periphery of the support receiving portion 83 is covered with the epidermis 53. In the support receiving portion 83, the surface side facing the finisher 14 attached to the steering wheel main body 11 is not inclined in the front-rear direction, and has a planar shape along the vehicle width direction. Further, the support receiving portion 83 is located on the side of each fixed portion 28 of the boss core 25 and between both ends of the inclined surface portion 77, and protrudes to the front side from each fixed portion 28.

  The epidermis 53 is made of, for example, leather or synthetic resin, and improves the aesthetics and tactile sensation of the covering portion 16. The skin 53 may be integrally formed with the rim covering portion 51 and the spoke covering portion 52, or may be separately formed and wound after the rim covering portion 51 and the spoke covering portion 52 are formed.

  On the other hand, the module 12 is, for example, an airbag device provided with an inflatable airbag, an inflator for supplying gas for inflating the airbag, or a pad body containing an impact absorber, and the steering wheel main body 11 The boss portion 18 is covered and fitted between the spoke portions 19 and attached. The module 12 can be made to function as a horn switch device for operating a horn mechanism by elastically supporting the steering wheel main body 11 in a movable manner in the front-rear direction.

  The cover body 13 shown in FIGS. 1 to 5 is also called a lower cover or a back cover, and is formed into a box shape having an opening on the front side by an insulating thermoplastic resin. It covers the back side, ie, the back side, of the portion of the spoke portion 19 on the boss portion 18 side. Inside the cover body 13, reinforcing ribs 86 and a plurality of rib-like positioning portions 87 that are inserted into the positioning recesses 76 of the covering portion 16 (spoke covering portion 52) and positioned are projected. ing. In addition, the cover body 13 has a cylindrical screw receiving portion 88 that is coaxially fitted to the back side of each fixing portion 28 and is fastened together with each finisher 14 and each fixing portion 28 by screws 27 in the front direction. That is, it protrudes toward the back of the boss mandrel 25 (boss portion 18).

  The finisher 14 shown in FIGS. 1 to 10 is also called a garnish or the like, and is a decorative member that covers the gap between the module 12 and the spoke portion 19 and improves the aesthetic appearance. The finisher main body 91 and the finisher main body 91 And a switch device 92 fixed integrally therewith.

  Each finisher main body 91 is formed of, for example, a hard synthetic resin, and includes a lower main body portion 94 that is a first finisher main body portion that covers a part of the lower spoke portion 21 and a part of the side spoke portion 22. A side body part 95 that is a second finisher body part to be covered, a finisher connecting part 96 that connects the lower body part 94 and the side part body part 95, and a finisher extension part that extends from the side part body part 95 97 and integrated.

  The lower main body portion 94 is a portion that is fitted to the lower fitting portion 59 and covers the lower spoke covering portion 55, and is formed in a longitudinal shape in the vertical direction. Further, a mushroom pin-like fixing pin (one and other) which is a spoke fixed portion as a fixed portion is provided on the back side of the lower main body portion 94 facing the lower spoke portion 21 (lower spoke covering portion 55). 101 and 102 are projected.

  The fixing pins 101 and 102 are press-fitted into the lower hole portions 61 and 62 from the front side, respectively, and are spaced apart from each other in the vicinity of the lower end portion of the lower main body portion 94. That is, the fixing pins 101 and 102 can fix the lowermost end portion of the finisher 14 to the steering wheel body 11. The fixing pin 101 has a (one) claw portion 101a that is locked to the stepped portion 61a of the lower hole portion 61. The side portion on the boss portion 18 (boss core 25) side that is the center side in the vehicle width direction Projected to Further, the fixing pin 102 is provided with a (other) claw portion 102a that is engaged with the stepped portion 62a of the lower hole 62 so as to protrude over the entire circumference. The fixing pins 101 and 102 are almost free of clearance from the inner surfaces of the lower holes 61 and 62 in a state where they are press-fitted into the lower holes 61 and 62. Therefore, the lower main body portion 94 is firmly fixed to the steering wheel main body 11 (lower spoke portion 21) by press-fitting the fixing pins 101 and 102 into the lower hole portions 61 and 62.

  The side part main body 95 is fitted to the side part fitting part 64 and covers the first and second covering parts 65 and 66 (opposing surface part 71 and flat part 75) of the side part spoke covering part 56 in particular. The upper part and the side part are opposed to the upper wall part 79 and the side wall part 78 of the wall part 68 with substantially no gap in a state of being fitted to the side part fitting part 64. In addition, a switch device 92 is integrally provided in the side body portion 95. Further, a mushroom pin-like locking pin 104 as a mounted portion protrudes from the back side of the side body portion 95 facing the side spoke portion 22 (side portion spoke covering portion 56). A plurality of, for example, a pair of locking claw portions 105 (FIG. 7B) as a pair of locking protrusions protrude from the switch device 92 to the side opposite to the anti-boss portion 18 (anti-module 12).

  The locking pin 104 is inserted from the front side with respect to the hole 73, and is arranged at the lower end of the side body 95 and the side of the rim 17 that is the anti-boss 18 side. Has been. That is, the locking pin 104 can fix the opposite boss 18 side, which is one end of the finisher 14 in the vehicle width direction, to the steering wheel body 11. Further, the locking pin 104 is provided with a claw portion 104a that is locked to the locking stepped portion 73a of the hole 73, protruding from the side on the side opposite to the boss portion 18 in the vehicle width direction. The locking pin 104 is small with respect to the hole 73 and can be detached from the hole 73. Therefore, by inserting the locking pin 104 into the hole 73, the side body 95 is detachably attached to the steering wheel body 11 (lower spoke portion 21).

  Each locking claw portion 105 protrudes in a plate shape from, for example, the switch device 92, and is configured to be inserted and locked along the vehicle width direction from the boss portion 18 side with respect to each locking hole portion 81. Yes.

  The finisher connecting portion 96 extends in an inclined manner across the lower main body portion 94 and the side main body portion 95.

  The finisher extension 97 extends upward from the side on the boss 18 side to the back side at the upper end of the side body 95, that is, the end opposite to the lower body 94. The finisher extending portion 97 includes a finisher supported portion 107 supported by the support receiving portion 83 from the back side, and a screw fixing as a boss fixed portion as a fixed portion fixed to the fixing portion 28 by the screw 27. Part 108 is provided.

  The finisher supported portion 107 is provided at a position closer to the base end side than the distal end portion of the finisher extending portion 97. The finisher supported portion 107 is formed in a planar shape along the vehicle width direction, and comes into surface contact with the support receiving portion 83.

  The screwing portion 108 is provided in a cylindrical shape having an axial direction along the front-rear direction at the upper end portion which is the tip portion of the finisher extending portion 97. The screw 27 is connected to the fixing portion 28 and the screw receiving portion 88. By fastening together, the upper end portion of the finisher 14 can be fixed to the steering wheel body 11. The screwing portion 108 is located between the fixing pins 101 and 102 and the locking pin 104 in the vehicle width direction. Therefore, the screwing portion 108, the fixing pins 101 and 102, and the locking pin 104 are arranged at different positions in the vertical direction and the vehicle width direction, respectively.

  The switch device 92 operates, for example, an audio device or an air conditioner in a vehicle. As shown in FIGS. 7 (a) and 7 (b), the switch device 92 is a push operation unit that pushes forward and operates. A plurality of buttons 92a are provided. Further, as shown in FIG. 2A, the back side of the switch device 92 is a planar supported portion 92 b that is supported by the planar portion 75 in a state where the finisher 14 is attached to the steering wheel body 11. Yes. The switch device 92 may be provided with, for example, an operation unit that operates a wheel.

  As shown in FIGS. 1 to 10, the steering wheel 10 is obtained by combining the steering wheel main body 11 with the cover body 13 from the back side, and inserting the cover body 13 into the positioning recesses 76. To the steering wheel body 11 while positioning.

  Further, finishers 14 and 14 are attached to the steering wheel body 11 from the front side. At this time, each finisher 14 fits the lower main body portion 94 to the lower fitting portion 59 while press-fitting the fixing pins 101 and 102 into the lower hole portions 61 and 62 of the lower spoke portion 21 (FIGS. 5 and 6). At the same time, the locking pin 104 is inserted into the hole 73 of the side spoke portion 22, and the locking claw portion 105 is inserted into the locking hole portion 81, and the side body portion 95 is fitted into the side fitting portion 64. (FIG. 2A). In this state, the finisher supported portion 107 is supported by the support receiving portion 83 from the back side, and the screwing portion 108 is aligned with the fixing portion 28. Therefore, the screwing portion 108 is screwed from the front side. By inserting 27 and screwing, the screwing portion 108 is fastened together with the fixing portion 28 and the screw receiving portion 88 of the cover body 13 (FIG. 4). As a result, each finisher 14 is fixed at three points mainly by the locking pin 104 and the screwing portion 108 and the fixing pins 101 and 102 that are located on the opposite sides of the locking pin 104 in the vertical direction. The screwing portion 108 and the fixing pins 101 and 102 are firmly fixed to the steering wheel main body 11, and the locking pin 104 is detachably attached to the steering wheel main body 11 (FIG. 9), and the supported portion 92b of the switch device 92 is supported. Is in contact with the flat portion 75 and supported by the flat portion 75 from the back side. In addition, each latching nail | claw part 105 assists the position of the side part main-body part 95 (switch apparatus 92) of the finisher 14 in the front back direction with respect to the side part spoke part 22 (side part spoke coating | coated part 56). Lock. That is, in the normal state, each finisher 14 has the screwing portion 108 fixed to the boss portion 18, the fixing pins 101 and 102 fixed to the lower spoke portion 21, and the locking pin 104 being the side spoke portion. By being attached to 22, a state in which a part of the steering wheel main body 11 is securely covered is maintained. In this state, the lap amount L in the width direction of the portion facing each side spoke portion 22 (opposing surface portion 71 and flat surface portion 75) of each finisher 14 at a distance of 1 mm or less is a predetermined distance, for example, 40 mm or less. Become. That is, each finisher 14 is closely opposed to each side spoke portion 22 (opposing surface portion 71 and flat surface portion 75) with a lap amount L in the vehicle width direction equal to or less than a predetermined distance. In other words, the inclined surface portion 77 of each side spoke portion 22 is positioned closer to the boss portion 18 than the portion that is wrapped with the finisher 14 in the vehicle width direction.

  Then, the boss 25a of the steering wheel body 11 is fitted to the steering shaft, and is fastened and fixed with a nut (not shown).

  Thereafter, the module 12 is attached to the boss portion 18 and various wirings are performed so that the steering wheel 10 is attached to the steering shaft.

  The steering wheel 10 configured as described above is operated when the occupant in the driver's seat grips the rim portion 17 and rotates. When the module 12 has the function of a horn switch device, the horn device on the vehicle body side is blown by pushing the module 12. Further, by operating each switch device 92 provided in the finisher 14, an audio device and an air conditioner in the vehicle are operated.

  On the other hand, in the case of a frontal collision of the vehicle, when the module 12 is an airbag device, for example, gas is rapidly injected from the inflator into the airbag, and the folded and stored airbag is rapidly expanded. Deploy in front of the occupant to restrain and protect the occupant.

  In addition, if an excessive force is input due to the occupant moving forward due to a vehicle collision or the like, the rim core metal 24 and the spoke core metal 26 are deformed to absorb the impact. And protect the passengers. At this time, for example, when the side portion including the finisher 14 of the steering wheel 10 is pressed and the rim core metal 24 of the rim portion 17 is deformed while moving outwardly away from the boss core metal 25, the rim portion 17 The side spoke part 22 (side part spoke core metal 38) connected to the side follows the side and plastically deforms. Therefore, each finisher 14 is firmly fixed to the boss portion 18 and the lower spoke portion 21 by the screwing portion 108 and the fixing pins 101 and 102, but to the side spoke portion 22 is a locking pin. 104 is removably attached, and each side spoke portion 22 has an inclined surface portion 77 inclined from the rim portion 17 side toward the boss portion 18 side toward the front side on the opposite side to the finisher 14 Since each finisher 14 has a hole 73 torn, the locking pin 104 is detached from the side spoke portion 22 and the bent side spoke portion 22 (side spoke core metal 38) is the finisher 14. It does not catch on the back side of the rim, escapes to the boss portion 18 side along the inclined surface portion 77 inclined from the rim portion 17 side toward the boss portion 18 side, and does not follow the side spoke portion 22 (side spoke core metal 38). (FIG. 1 (b) and FIG. 2 (b)). That is, each finisher 14 absorbs an impact without bottoming out against the side spoke portion 22, and the reaction force from the finisher 14 can be suppressed. Accordingly, it is not necessary to separately provide, for example, an impact absorbing portion in the finisher 14, and it is possible to cope with downsizing.

  In addition, the finisher 14 is locked in the hole 73 provided in the flexible spoke covering portion 52 (side spoke covering portion 56) that covers a part of the metal spoke core 26 (side spoke core 38). By inserting the pin 104, when the spoke portion 19 (side spoke portion 22) is plastically deformed by an excessive force input, the hole portion 73 is easily torn and the locking pin 104 can be easily detached. .

  When the switch device 92 is operated, the switch device 92 is supported by the flat portion 75 provided on the spoke covering portion 52 of the side spoke portion 22 so as to be opposed to the pressing operation of the button 92a. It is possible to prevent the finisher 14 from being displaced when the button 92a of the device 92 is pressed, and to ensure the operability of the switch device 92.

  In the above-described embodiment, the flat surface portion 75 and the inclined surface portion 77 are formed to include the surface of the covering portion 16 in the side spoke portion 22, but are formed by the spoke mandrel 26 itself. Also good.

  Further, the shape of the finisher 14 is not limited to the above shape, and if the upper and lower ends are firmly fixed to the steering wheel body 11, and the side portions can be detachably fixed to the spoke portion 19, It can be of any shape.

  Furthermore, the above-described configuration can be suitably used for the finisher 14 that does not include the switch device 92.

  Further, the rim portion 17 may have an arbitrary shape other than an annular shape, for example, a shape curved along a part of an arc or an ellipse.

  And the spoke part 19 is not restricted to three, Four may be sufficient.

  The present invention can be suitably used, for example, as a steering wheel for an automobile.

10 Steering wheel as a steering wheel
11 Steering wheel body as a steering wheel body
14 Finisher
17 Rim part
18 Boss
19 Spoke part
26 spoke mandrel
52 Spoke cover
73 hole
75 Flat part
77 Inclined surface
92 Switch device
101,102 Fixing pin as fixed part
104 Locking pin as mounted part
108 Screw fixing part as fixed part

Claims (3)

A handle body including a rim portion for operation, a boss portion connected to the vehicle body, and a plurality of spoke portions connecting the rim portion and the boss portion;
And a finisher attached to cover a part of the handle body,
The finisher is
A fixed part fixed to at least one of the boss part and the one spoke part;
An attached portion that is removably attached to the other spoke portion;
The other spoke portion includes an inclined surface portion that is inclined from the rim portion side toward the boss portion side toward the non-occupant side and faces the finisher. The other spokes
Metal spoke mandrel,
A flexible spoke covering portion that covers a portion of the spoke mandrel;
The handle according to claim 1, further comprising: a hole provided in the spoke covering portion to which the finisher attached portion is inserted and attached. The finisher is equipped with a switch device to push and operate.
The handle according to claim 2, wherein the other spoke portion includes a flat planar portion that is provided in the spoke covering portion and supports the switch device in opposition to the pressing operation.

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