JP6488627B2 - Steering wheel - Google Patents

Description

  The present invention relates to a steering wheel, and more particularly to a steering wheel having a horn switch function in which an airbag device advances and retreats in a steering axis direction. More specifically, the present invention relates to a steering wheel in which an airbag device is attached to a steering wheel body by a snap-in method.

  JP, 2013-71626, A is a conventional example which attached the air bag device which has a horn switch function to the air bag device attachment part of a steering wheel by the snap-in method.

  9 and 10 are cross-sectional views showing the airbag device mounting structure described on page 19 of the publication, FIG. 9 shows a state before mounting, and FIG. 10 shows a state after mounting.

  A pin 2 protrudes from the back surface of the airbag device 1, and the tip end side of the pin 2 is inserted into the insertion hole 4 of the airbag device mounting portion 3. A lock spring 5 is provided along the back surface of the airbag device attachment portion 3. The tip of the pin 2 is a tapered portion 2a. When the pin 2 is inserted into the insertion hole 4, the lock spring 5 moves along the taper portion 2a, and the lock spring 5 eventually becomes a groove 2b near the tip of the pin 2. The airbag apparatus 1 is attached to the attachment part 3 as shown in FIG.

  The rear end side of the pin 2 is inserted into the guide column 6, and the guide column 6 is held by the retainer 8 of the airbag device 1 through the elastic member 7. The elastic member 7 has a function of attenuating vibration transmitted from the steering wheel to the airbag device 1.

  A coil spring 9 surrounding the pin 2 is interposed between the resin member 10 on the distal end side of the pin 2 and the guide column 6 in a stored state, and the airbag device 1 is separated from the airbag device mounting portion 3. Is always energized. When the airbag device 1 is pressed in the direction toward the attachment portion 3, the contact portion 11 of the horn switch comes into contact with the top surface of the pin 2 to turn on the switch, and the horn sounds.

JP2013-71626A

  In the conventional structure, the tapered portion 2 a abuts against the lock spring 5 when the pin 2 is inserted into the insertion hole 4. When the pin 2 is further pushed in, the lock spring 5 moves along the taper portion 2a and eventually engages with the groove 2b. When the lock spring 5 moves along the taper portion 2a, the lock spring 5 tapers. By pressing the portion 2 a, the pin 2 tilts and is strongly pressed obliquely against the inner peripheral surface of the insertion hole 4, and it is necessary to apply a remarkably large force to push the pin 2.

  An object of the present invention is to provide a steering wheel in which a pin can be smoothly inserted into an insertion hole when the airbag device is attached to the attachment portion, and the airbag device attachment work efficiency is improved.

  In the conventional example, as shown in FIG. 10, the pin 2 can tilt with respect to the attachment portion 3 even when the airbag device is attached.

  In one aspect of the present invention, an object of the present invention is to provide a steering wheel having high rigidity for fixing pins to an airbag device mounting portion.

  The steering wheel of the present invention includes a steering wheel main body, an airbag device mounting portion provided on the steering wheel main body, and an air bag mounted on the airbag device mounting portion with a back surface facing the airbag device mounting portion. A steering wheel including a bag device, a pin projecting from a back surface of the airbag device so as to advance and retreat in a projecting direction, a biasing spring that biases the pin in the projecting direction, and a tip portion of the pin A taper portion provided in the groove, a groove provided in the outer peripheral surface of the pin adjacent to the taper portion, an insertion hole provided in the airbag device attachment portion, and the pin inserted therein, A lock spring is provided at the airbag device mounting portion and is engaged with the groove of the pin inserted into the insertion hole. Tilt prevention means is provided for preventing the pin from tilting when the taper is in contact with the lock spring when the pin is inserted into the insertion hole.

  In one aspect of the present invention, when the tapered portion abuts on the lock spring or at a stage before that, the side peripheral surface on the rear end side with respect to the groove of the pin is in contact with the inner peripheral surface of the insertion hole. The pin is prevented from tilting.

  In this case, the insertion hole has a straight shape portion at least on the front end side in the pin insertion direction, a straight shape portion is provided on the rear end side of the groove of the pin, and the taper portion of the pin is the lock spring. It is preferable that the tilting of the pin is prevented by the straight shape portion of the pin coming into contact with the straight shape portion of the insertion hole at the time of contact with or before the contact.

  Moreover, it is preferable that the peripheral part on the inlet side of the insertion hole is an upright part that rises toward the airbag device.

  In one aspect of the present invention, the pin is provided with a flange portion, and in a state where the airbag device is attached to the airbag device attachment portion, the flange portion contacts the peripheral edge portion of the inlet of the insertion hole. It touches.

  In one aspect of the present invention, a guide rod having a straight bar portion extending in parallel with the pin toward the airbag device mounting portion is attached to the rear end side of the groove of the pin, The airbag device mounting portion is provided with a guide hole into which the straight rod portion of the guide rod is inserted, and the pin is prevented from tilting by engaging the straight rod portion with the guide hole.

  In one aspect of the present invention, the rear end side of the pin is inserted into a guide column, and the guide column is held by the retainer of the airbag device via a vibration damping soft material.

  In one aspect of the present invention, the first contact portion of the horn switch is provided on the rear end surface of the pin, and the second contact portion is disposed so as to face the first contact portion.

  In one aspect of the present invention, an attachment is integrated with the pin, the urging spring is interposed between the retainer and the attachment, and a contact portion for a horn switch is provided between the retainer and the attachment, respectively. Is provided.

  In one aspect of the present invention, the insertion hole is provided with a step surface directed toward the airbag device side, and the airbag device contacts the step surface when the airbag device is attached to the steering wheel body. An elastic body is provided on the pin.

  In the steering wheel of the present invention, when the pin is inserted into the insertion hole of the mounting portion, the tilt of the pin is prevented by the tilt prevention means, so that the taper portion at the tip of the pin is inclined to the inner peripheral surface of the insertion hole. Therefore, the pin can be smoothly inserted into the insertion hole. Thereby, the attachment work efficiency to the attachment part of an airbag apparatus improves markedly.

  In one aspect of the present invention, the taper portion of the pin abuts against the lock spring, or the pin straight shape portion contacts the straight shape portion of the insertion hole at an earlier stage, thereby preventing the pin from tilting. In this case, if the taper-shaped portion is provided on the inlet side in the pin insertion direction with respect to the straight shape portion of the insertion hole, the pin can be easily inserted into the insertion hole.

  Further, in this case, by providing an upright portion at the peripheral edge portion on the inlet side of the insertion hole, the inlet diameter of the insertion hole can be increased, and the pin can be easily inserted into the insertion hole.

It is a disassembled perspective view of the steering wheel which concerns on embodiment. It is a perspective view of a steering wheel concerning an embodiment. It is sectional drawing of the steering wheel at the time of airbag apparatus attachment. FIG. 4 is an enlarged sectional view of a part of FIG. 3. It is sectional drawing of the steering wheel at the time of airbag apparatus attachment. FIG. 6 is an enlarged sectional view of a part of FIG. 5. It is a partially expanded sectional view of the steering wheel after an airbag apparatus attachment. It is sectional drawing which shows another embodiment. It is sectional drawing at the time of the airbag apparatus attachment of the conventional steering wheel. It is sectional drawing at the time of the airbag apparatus attachment of the conventional steering wheel. It is sectional drawing at the time of the airbag apparatus attachment of the steering wheel which concerns on another embodiment. It is sectional drawing of the steering wheel of FIG. It is a partial expanded sectional view of the steering wheel after the airbag apparatus attachment which concerns on another embodiment.

  A first embodiment will be described with reference to FIGS.

  As shown in FIGS. 1 and 2, the steering wheel 20 is obtained by attaching an airbag device 40 to the steering wheel main body 21. The steering wheel main body 21 has a wheel portion 22, a spoke portion 23, and a boss portion 24 (core metal portion).

  The boss portion 24 includes a disk-shaped airbag device mounting portion 25, a pin insertion hole 26 provided in the airbag device mounting portion 25, a lock spring 27, and a steering shaft mounting provided in the center of the boss portion 24. It has holes 28 and the like.

  The lock spring 27 is substantially U-shaped, and is arranged so that one side crosses the insertion hole 26 in the chord direction. The attachment portion 25 is provided with a tunnel-like spring holder 30 and stoppers 31 and 32 for positioning the lock spring 27. The lock spring 27 is inserted into the spring holder 30 and is positioned in contact with the stoppers 31 and 32, so that the lock spring 27 is attached to the attachment portion 25 so that one side crosses the insertion hole 26 in the chord direction as described above.

  As shown in FIGS. 3 to 7, the airbag device 40 includes a retainer 41, an inflator 42 and an airbag 43 attached to the retainer 41, a module cover 44 that covers the airbag 43, and the retainer 41 toward the attachment portion 25. And a plurality of (in this embodiment, three) pins 45, a horn switch plate 48, and the like. This pin 45 is inserted into the insertion hole 26.

  The airbag 43 is folded and attached to the retainer 41 with a bolt 46 together with the inflator 42. When the inflator 42 ejects gas at the time of a vehicle collision, the airbag 43 is inflated, and the module cover 44 is cleaved and deployed.

  As shown in FIG. 4 in an enlarged manner, the inner peripheral surface of the insertion hole 26 has only a tapered portion 26a on the inlet side, that is, the peripheral portion on the airbag device 40 side. The shape portion 26b is formed. Note that the peripheral edge of the inlet of the insertion hole 26 is a raised portion 26c that rises from the periphery.

  The pin 45 is mounted in the pin holding hole 47 of the retainer 41. The pin 45 includes a pin front 50 and a pin rear 51.

  The pin rear 51 has a cylindrical portion 51a and a flange portion 51b. A female screw is provided on the inner peripheral surface of the cylindrical portion 51a. A horn switch contact chip 52 (first contact portion) is screwed onto the female screw. In the airbag device 40, a projection (second contact portion) 48 t is provided on the horn switch plate 48 so as to face the contact chip 52. The horn switch plate 48 is fixed to the retainer 41 with the bolt 46. When the airbag device 40 is pushed and retracted, the horn switch plate 48 and the contact tip 52 come into contact with each other, and the horn sounds.

  A tip portion of the pin front 50 is a tapered portion 50a, and a groove 50b is provided around the outer peripheral surface adjacent to the tapered portion 50a. The rear end side of the groove 50b is a straight shape portion 50c, and a flange portion 50d is provided on the rear end side of the straight shape portion 50c.

  The pin 45 has a male screw shaft portion 50e that protrudes rearward from the axial center portion of the flange portion 50d. The male screw shaft portion 50e is screwed to the female screw of the cylindrical portion 51a of the pin rear 51, whereby the pin front 50 and the pin rear 51 are connected to form the pin 45.

  The pin rear 51 is slidably inserted into the guide column 53. A flange 53a is provided at the rear end of the guide column 53, and a claw 53b is provided at the tip. A cylindrical rubber bush 54 is fitted on the guide column 53 as a soft elastic material for damping vibration. One end surface of the rubber bush 54 is in contact with the flange portion 53a. A washer 55 is disposed so as to overlap the other end surface of the rubber bush 54. The washer 55 is locked to the claw portion 53b.

  Flange portions 54 a and 54 b are provided on both end sides of the rubber bush 54, and the flange portions 54 a and 54 b sandwich the peripheral edge portion of the pin holding hole 47, whereby the pin 45 passes through the guide column 53 and the rubber bush 54. It is held by the retainer 41. A rubber spacer 57 is provided so as to overlap the flange portion 53 a of the guide column 53.

  A coil spring 58 is interposed between the washer 55 and the flange portion 50d in an accumulating state so as to surround the pin rear 51.

  In order to attach the airbag device 40 to the attachment portion 25, as shown in FIGS. 1 and 4, the pins 45 are respectively opposed to the insertion holes 26, the airbag device 40 is moved toward the attachment portion 25, and the pins 45 are Insert into the insertion hole 26. At this time, the horn switch plate 48 comes into contact with the contact tip 52 of the pin 45, and the pin 45 is pushed directly by the horn switch plate 48 and moves forward.

  When the pin 45 moves forward, the taper portion 50a abuts against the lock spring 27. At substantially the same time or earlier, the straight shape portion 50c of the pin 45 engages with the straight shape portion 26b of the insertion hole 26. To do. For this reason, even if the taper portion 50 a is pushed from the lock spring 27, the pin 45 does not tilt, and the pin 45 is smoothly inserted into the insertion hole 26 while maintaining a substantially coaxial posture with the insertion hole 26.

  When the lock spring 27 passes through the tapered portion 50a, the lock spring 27 engages with the groove 50b as shown in FIG. 6, and the flange portion 50d of the pin front 50 comes into contact with the peripheral portion on the inlet side of the insertion hole 26. Thereby, the pin 45 is firmly fixed to the mounting portion 25. When the hand is released from the airbag device 40, the retainer 41, the module cover 44 and the like are moved back to the occupant side by being pushed by the coil spring 58, and the state shown in FIG.

  When the airbag device 40 is attached to the steering wheel body 21, as described above, even if the tapered portion 50a of the pin 45 abuts against the lock spring 27, the pin 45 does not tilt, and each pin 45 is inserted into the insertion hole smoothly and smoothly. 26, and the assembly workability of the steering wheel 20 is good.

  In particular, in this embodiment, the upright portion 26c is raised on the side of the air bag device 40 of the insertion hole 26. Therefore, the length of the straight shape portion 26b is large, and the tilting of the pin 45 can be sufficiently prevented. . In this embodiment, when the pin 45 is inserted into the insertion hole 26, the horn switch plate 48 directly contacts the contact chip 52 of the pin 45 and directly pushes the pin 45, so that the pin 45 moves forward strongly. Then, the pin 45 advances smoothly while the taper portion 50a pushes and moves the lock spring 27 in the lateral direction.

  7, the flange portion 50d is pressed against the upright portion 26c of the insertion hole 26, and the attachment portion 25 is sandwiched between the flange portion 50d and the lock spring 27. High fixing rigidity.

  FIG. 8 is an enlarged view of a part of the steering wheel according to the second embodiment, and is a cross-sectional view of the same portion as FIG.

  In this embodiment, a guide hole 60 is provided in the attachment portion 25 in the vicinity of the insertion hole 26, and a guide rod 61 inserted into the guide hole 60 is attached to the pin 45. The inlet side of the guide hole 60, that is, the airbag device 40 side is a tapered portion 60a whose diameter increases toward the inlet, and the opposite side is a straight portion 60b. The guide rod 61 has a straight bar portion 61 a parallel to the axis of the pin 45.

  When the airbag device 40 is moved from the state of FIG. 8 toward the attachment portion 25, the pin 45 is inserted into the insertion hole 26. In this embodiment, the taper portion 50a abuts on the lock spring 27, or the straight rod portion 61a enters the straight shape portion 60b at a stage before that. Therefore, even if the taper portion 50 a is pushed by the lock spring 27, the pin 45 is prevented from being inclined, and the pin 45 is smoothly inserted into the insertion hole 26. In the embodiment of FIG. 8, the straight-shaped portion 26b and the raised portion 26c of the insertion hole 26 may be omitted.

  11 and 12 are sectional views of the vicinity of the pin of the steering wheel according to the third embodiment. FIG. 11 shows a state before the airbag device 40 is attached, and FIG. 12 shows the state after the airbag device 40 is attached. Shows the state.

  In this embodiment, a short cylindrical rubber ring 71 is mounted as an elastic body on the outer periphery of the straight-shaped portion 50c of the pin front 50A.

  In this embodiment, an annular wall 26r coaxial with the insertion hole 26 is erected from the side of the airbag device 40 of the insertion hole 26. The inner diameter of the annular wall 26r is slightly larger than the outer diameter of the flange portion 50d, and the flange portion 50d is slidably fitted to the annular wall 26r. The peripheral portion of the insertion hole 26 on the airbag device 40 side is a step surface 26 t directed toward the airbag device 40.

  When attaching the airbag device 40 to the attachment portion 25, if the airbag device 40 is moved toward the attachment portion 25 from the state of FIG. 11, the pin 45 is inserted into the insertion hole 26. In this embodiment, the tapered portion 50a abuts against the lock spring 27, or the flange portion 50d enters the annular wall 26r as shown in FIG. 11 at a stage before that. Therefore, even if the taper portion 50 a is pushed by the lock spring 27, the pin 45 is prevented from being inclined, and the pin 45 is smoothly inserted into the insertion hole 26.

  Further, in the embodiment of FIGS. 11 and 12, in the state of FIG. 12 in which the pin 45 is inserted into the insertion hole 26 and the airbag device 40 is attached, the rubber ring 71 contacts the step surface 26t. Thus, rattling of the pin 45 is prevented, and the occurrence of abnormal noise is also prevented. Moreover, the assembling property of the airbag device 40 is also improved.

  Other configurations of the second and third embodiments are the same as those of the first embodiment, and the same reference numerals denote the same parts.

  An airbag apparatus 140 according to the fourth embodiment will be described with reference to FIG.

  Also in this embodiment, the lock spring 127 is provided along the insertion hole 126 of the pin 145 in the airbag device mounting portion 125 of the steering wheel. The lock spring 127 is substantially U-shaped like the lock spring 27 and is disposed so as to cross the insertion hole 126 in the string direction.

  The peripheral edge of the inlet of the insertion hole 126 is a raised portion 126c that rises from the periphery.

  The airbag 43 is folded and attached to the retainer 141 as in the above embodiments.

  The pin 145 is mounted in the pin holding hole 147 of the retainer 141. The pin holding hole 147 is provided in the recessed portion 141 a of the retainer 141. A plate 141b is provided so as to cover the recessed portion 141a.

  The pin 145 includes a pin front 150 and a pin rear 151. The pin rear 151 has a cylindrical portion 151a and a flange portion 151b. A female screw is provided on the inner peripheral surface of the cylindrical portion 151a.

  The front end portion of the pin front 150 is a tapered tapered portion 150a, and a groove 150b is provided around the outer peripheral surface adjacent to the tapered portion 150a. The rear end side of the groove 150b is a straight shape portion 150c. A male screw shaft portion 150e is provided so as to protrude rearward from the axial center portion of the straight shape portion 150c. The male screw shaft portion 150e is screwed into the female screw of the cylindrical portion 151a of the pin rear 151 through the insertion hole 162 of the attachment 160, whereby the pin front 150, the pin rear 151, and the attachment 160 are connected to form the pin 145. The

The attachment 160 includes a small-diameter cylindrical portion 1 6 1, and the small-diameter cylindrical portion 161 coaxial with the large diameter cylindrical portion 164, a bottom seat 163 provided in the small diameter cylinder portion 161 side of the large diameter cylindrical portion 164, the And an insertion hole 162 provided at the center of the bottom seat 163. The small diameter cylindrical portion 161 is erected from the bottom seat portion 163 in the opposite direction to the large diameter cylindrical portion 164. The insertion hole 162 is coaxial with the large diameter cylindrical portion 164 and the small diameter cylindrical portion 161. The peripheral edge portion of the insertion hole 162 is sandwiched between the rear end surface of the straight shape portion 150 c of the pin front 150 and the front end surface of the cylindrical portion 151 a of the pin rear 151.

  The pin rear 151 is slidably inserted into the guide column 153. A flange portion 153a is provided at the rear end of the guide column 153, and a claw portion 153b is provided at the front end portion. A cylindrical rubber bush 154 is fitted on the guide column 153 as a soft elastic material for damping vibration. One end surface of the rubber bush 154 is in contact with the flange portion 153a. A washer 155 is disposed so as to overlap the other end surface of the rubber bush 154. The washer 155 is locked to the claw portion 153b.

  Flange portions 154 a and 154 b are provided at both ends of the rubber bush 154, and the flange portions 154 a and 154 b sandwich the peripheral edge portion of the pin holding hole 147, whereby the pin 145 passes through the guide column 153 and the rubber bush 154. It is held by the retainer 141. A rubber spacer 157 is provided between the flange portion 153 a of the guide column 153 and the flange portion 151 b of the pin rear 151.

  A coil spring 158 is interposed between the washer 155 and the bottom seat portion 163 in a power storage state so as to surround the pin rear 151.

  A protrusion (second contact portion) 148t is provided on the side of the attachment portion 125 in the peripheral edge portion of the pin holding hole 147 so as to face the end surface 164a of the large-diameter cylindrical portion 164. When the airbag device 140 is pushed and retracted, the projection 148t comes into contact with the end surface 164a of the large-diameter cylindrical portion 164, and the horn blows.

  In order to attach the airbag device 140 to the attachment portion 125, the pins 145 are opposed to the insertion holes 126, the airbag device 140 is moved toward the attachment portion 125, and the pins 145 are inserted into the insertion holes 126. At this time, the projecting portion 148t comes into contact with the large-diameter cylindrical portion 164, and the pin 145 is pushed directly by the retainer 141 and moves forward.

  When the pin 145 moves forward, the tapered portion 150 a comes into contact with the lock spring 127, but at the same time or earlier, the small diameter cylindrical portion 161 of the attachment 160 engages with the insertion hole 126. For this reason, even if the taper part 150a is pushed from the lock spring 127, the pin 145 does not tilt, and the pin 145 is smoothly inserted into the insertion hole 126 while maintaining a substantially coaxial posture with the insertion hole 126.

  When the lock spring 127 passes through the tapered portion 150 a, the lock spring 127 engages with the groove 150 b and the bottom seat portion 163 of the attachment 160 comes into contact with the peripheral portion on the inlet side of the insertion hole 126. Thereby, the pin 145 is firmly fixed to the attachment portion 125. When the hand is released from the airbag device 140, the retainer 141 and the like are moved back to the occupant side by being pushed by the coil spring 158 to reach the attachment end state shown in FIG.

  When the airbag device 140 is pushed in this state, as described above, the projecting portion 148t comes into contact with the end surface 164a (first contact portion) of the large-diameter cylindrical portion 164, and the horn sounds. When the hand is released from the airbag device 140, it is pushed by the coil spring 158 to return to the state shown in FIG.

  In the embodiment of FIG. 13 as well, a rubber ring similar to that of the embodiment of FIG. 12 may be interposed between the bottom seat portion 163 of the attachment 160 and the front end surface of the upright portion 126c.

  Each of the above embodiments is an example of the present invention, and the present invention may be configured other than illustrated.

DESCRIPTION OF SYMBOLS 20 Steering wheel 21 Steering wheel main body 22 Wheel part 23 Spoke part 24 Boss part 25 Airbag apparatus attachment part 26 Insertion hole 26a Taper-shaped part 26b Straight-shaped part 26c Upright part 27 Lock spring 40 Airbag apparatus 41 Retainer 45 Pin 47 Pin holding Hole 50, 50A Pin front 50a Tapered portion 50b Groove 50c Straight shape portion 53 Guide column 54 Rubber bushing 58 Coil spring

Claims (5)

A steering wheel main body, an airbag device mounting portion (125) provided on the steering wheel main body, and an airbag device (140 ) mounted on the airbag device mounting portion with the back face facing the airbag device mounting portion ) and a steering wheel equipped with,
A pin (145) projecting from the back surface of the retainer (141) of the airbag device (140) so as to advance and retreat in the projecting direction;
A biasing spring (158) for biasing the pin in the protruding direction;
A taper (150a) provided at the tip of the pin;
A groove (150b) provided on the outer peripheral surface of the pin adjacent to the tapered portion;
An insertion hole (126) provided in the airbag device mounting portion, into which the pin is inserted;
In a steering wheel having a lock spring (127) provided in the airbag device mounting portion and engaged with the groove of a pin inserted into the insertion hole,
When the pin (145) is inserted into the insertion hole (126) , the pin (145) is prevented from tilting when the taper portion (150a) is in contact with the lock spring (127). Means ,
An attachment (160) is integrated with the pin (145), and the biasing spring (158) is interposed between the retainer (141) and the attachment (160), and the retainer (141) And the attachment (160) are provided with contact portions for horn switches,
The attachment (160) includes a small diameter cylindrical portion (161), a large diameter cylindrical portion (164) coaxial with the small diameter cylindrical portion (161), and a small diameter cylindrical portion (161) side of the large diameter cylindrical portion (164). And a through seat (162) provided in the center of the bottom seat (163),
The small-diameter cylindrical portion (161) is erected from the bottom seat portion (163) in the opposite direction to the large-diameter cylindrical portion (164), and the insertion hole (162) includes the large-diameter cylindrical portion (164) and the small-diameter cylindrical portion ( 161) and coaxial with
The pin (145) includes a pin front (150) and a pin rear (151). The pin rear (151) includes a cylindrical portion (151a) and a flange portion (151b), and the cylindrical portion (151a). ) Is provided with an internal thread
The front end portion of the pin front (150) is a tapered portion (150a) having a tapered shape, and the rear end side is a straight shape portion (150c). A male threaded shaft portion (150e) is provided so as to protrude toward the end, and the male threaded shaft portion (150e) passes through the insertion hole (162) of the attachment (160) and is formed in the cylindrical portion (151a) of the pin rear (151). Screwed into the female thread,
The peripheral portion of the insertion hole (162) of the attachment (160) is sandwiched between the rear end surface of the straight-shaped portion (150c) of the pin front (150) and the front end surface of the cylindrical portion (151a) of the pin rear (151). Thus, the pin front (150), the pin rear (151), and the attachment (160) are connected,
When the pin (145) is inserted into the insertion hole (126), the tapered portion (150a) comes into contact with the lock spring (127) at substantially the same time or earlier, or the small diameter cylindrical portion (161) of the attachment (160). Is engaged with the insertion hole (126), thereby preventing the pin (145) from being inclined,
A steering wheel characterized in that a bottom seat portion (163) of the attachment (160) is in contact with a peripheral edge portion on the inlet side of the insertion hole (126) . The steering wheel according to claim 1 , wherein a peripheral edge portion on an inlet side of the insertion hole is an upright portion that rises toward the airbag device. According to claim 1 or 2, wherein the pin cylindrical portion of the rear (151) (151a) is inserted into the guide column (153),
A steering wheel characterized in that the guide column (153) is held by a retainer (141) of the airbag device via a vibration damping soft material (154) . According to claim 3, wherein the pin cylindrical portion of the rear (151) (151a) is slidably inserted in the guide column (153),
A first contact portion of a horn switch is provided on a rear end surface of the large diameter cylindrical portion (164) of the attachment (160) ;
A second contact portion is provided on the retainer (141) so as to face the first contact portion,
When the airbag device is pushed and retracted, the first contact portion and the second contact portion come into contact with each other, and a horn blows. The steering wheel according to claim 4 , wherein the second contact portion is disposed between the folded airbag and the first contact portion.

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