WO2012067131A1 - ステアリングホイール - Google Patents
ステアリングホイール Download PDFInfo
- Publication number
- WO2012067131A1 WO2012067131A1 PCT/JP2011/076354 JP2011076354W WO2012067131A1 WO 2012067131 A1 WO2012067131 A1 WO 2012067131A1 JP 2011076354 W JP2011076354 W JP 2011076354W WO 2012067131 A1 WO2012067131 A1 WO 2012067131A1
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- WO
- WIPO (PCT)
- Prior art keywords
- flange portion
- insulator
- elastic body
- steering wheel
- horn plate
- Prior art date
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Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
- G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
- G05G1/08—Controlling members for hand actuation by rotary movement, e.g. hand wheels
- G05G1/10—Details, e.g. of discs, knobs, wheels or handles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
- B60R21/203—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in steering wheels or steering columns
- B60R21/2035—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in steering wheels or steering columns using modules containing inflator, bag and cover attachable to the steering wheel as a complete sub-unit
- B60R21/2037—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in steering wheels or steering columns using modules containing inflator, bag and cover attachable to the steering wheel as a complete sub-unit the module or a major component thereof being yieldably mounted, e.g. for actuating the horn switch or for protecting the driver in a non-deployment situation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/20—Control lever and linkage systems
- Y10T74/20576—Elements
- Y10T74/20732—Handles
- Y10T74/20834—Hand wheels
Definitions
- the present invention relates to a steering wheel for steering a vehicle such as an automobile, and more particularly to a steering wheel having a dynamic damper.
- a steering wheel for steering a vehicle such as an automobile has a main body portion assembled to a steering shaft for converting a rotation operation into a steering angle operation, and a pad portion arranged at a substantially center of the main body portion, and the steering An assembly in which the pad portion is assembled to the main body portion so as to be movable in the axial direction of the shaft and a horn switch is configured between the main body portion and the pad portion is already known (for example, Patent Literature 1 and Patent Literature 1). 2).
- Such a steering wheel assembly structure includes, for example, a first horn plate fixed to the main body, a guide pin erected on the first horn plate, a stopper disposed at the tip of the guide pin, and the pad.
- a second horn plate that is fixed to the portion and slidably disposed along the guide pin, and a second horn plate that is disposed along the guide pin and that is in contact with the stopper.
- the coil spring is energized, and an elastic body disposed between the coil spring and the second horn plate.
- an elastic body is connected to the horn plate, and a slider for guiding the elastic body is disposed inside the steering wheel, and the slider is constantly biased by a coil spring. Therefore, such an elastic body has a problem that a load is applied every time the slider moves up and down, and wear occurs between the slider and the horn plate, the elastic body is easily fatigued, and it is difficult to extend the life of the elastic body. It was.
- the dynamic dampers used in these steering wheels are repeatedly prototyped and tested individually for each vehicle type or steering wheel type, and finally the shape is set. At that time, based on the test results, the thickness of the elastic body, the elastic coefficient, the elastic coefficient of the coil spring, and the like are changed to adjust the frequency of the dynamic damper. In addition, depending on the configuration of the dynamic damper, a desired frequency adjustment cannot be performed only by changing the thickness of the elastic body or the elastic coefficient, and the configuration of the dynamic damper itself is often changed.
- the present invention was devised in view of such problems, and can reduce the load applied to the elastic body constituting the dynamic damper, extend the life of the dynamic damper, and easily adjust the frequency of the dynamic damper.
- An object is to provide a steering wheel.
- the present invention has a main body part assembled to a steering shaft for converting a rotation operation into a steering angle operation, and a pad part arranged at a substantially center of the main body part, and moves in the axial direction of the steering shaft.
- the first horn plate fixed to the main body portion and the pad portion are fixed Slidable along the guide pin, a stopper pin formed at the tip of the guide pin, a guide pin erected on one of the first horn plate or the second horn plate
- An insulator inserted into the insulator, an elastic body fitted to the outer periphery of the insulator, and fitted to the outer periphery of the elastic body and A protector disposed on the other of the second horn plate and a coil spring inserted through the guide pin so as to bias the insulator toward the stopper, and
- the insulator includes a first flange portion
- a first diameter-increased part that is enlarged to be in contact with the first flange part; and a second diameter-expanded part that is enlarged to be in contact with the second flange part.
- a steering wheel is provided in which a plurality of linear protrusions arranged substantially radially are formed on a contact surface with the first enlarged diameter portion.
- the radial width of the first flange portion and the first enlarged diameter portion may have a portion formed larger than the radial width of the second flange portion and the second enlarged diameter portion.
- a plurality of point-like protrusions may be formed on a contact surface of the second flange portion with the second enlarged diameter portion.
- a plurality of irregularities may be formed on the surface of the first flange portion on the stopper side.
- the insulator includes the first flange portion, and a first leg portion that extends from the first flange portion toward the second flange portion and is disposed along the guide pin.
- a second insulator comprising: the second flange portion; and a second leg portion extending from the second flange portion toward the first flange portion and disposed along the guide pin; It may be divided into.
- the protector includes an extended portion that is extended to be in contact with the first enlarged diameter portion, and a columnar protrusion that is erected on the surface of the extended portion, and the first flange portion and the first enlarged diameter portion.
- the part may have a recess that can be locked with the columnar protrusion.
- the protector has a claw portion that can be locked to the first horn plate or the second horn plate on an outer peripheral surface, and the expansion portion, the first flange portion, and the first diameter-expanded portion are the first You may have a notch part which can visually recognize the said nail
- the first flange portion and the second flange portion may have a through hole through which the assembled elastic body can be seen.
- the elastic body does not directly contact the stopper of the guide pin, the first horn plate or the second horn plate, and the coil spring, and the load is applied to the elastic body.
- wear can be reduced and the life of the dynamic damper can be extended.
- linear protrusions for contact between the insulator and the elastic body it is possible to effectively generate a frictional force between the insulator and the elastic body.
- the magnitude of the frictional force generated between the insulator and the elastic body can be easily adjusted, and the frequency of the dynamic damper can be easily adjusted. it can.
- the magnitude of the frictional force generated between the insulator and the elastic body can be easily adjusted, the amplitude or frequency generated by the vibration of the pad can be adjusted, and the frequency of the dynamic damper can be easily adjusted it can.
- first flange portion and the first enlarged diameter portion are formed larger than the second flange portion and the second enlarged diameter portion, it is possible to ensure a large area on the first flange portion side that greatly affects the damper performance. It is possible to generate a necessary frictional force between the insulator and the elastic body.
- the insulator can be easily assembled by dividing the insulator into the first insulator and the second insulator. Furthermore, the load which arises in an elastic body can also be reduced by making the leg part of a 2nd insulator contact a stopper.
- a claw portion that can be locked to the horn plate is formed on the outer peripheral surface of the protector, and a notch portion is formed in the insulator and the elastic body so that the claw portion locked to the horn plate can be configured to be visible. The assembled state can be easily confirmed.
- the elastic body assembled to the insulator can be configured to be visible, and the assembled state can be easily confirmed.
- FIG. 2 is a detailed view of the first insulator shown in FIG. 1, (A) is a plan view, (B) is a rear view, (C) is a view taken along arrow C in FIG. 3 (A), and (D) is FIG. It is DD sectional drawing in A). It is detail drawing of the 2nd insulator shown in FIG. 1, (A) is a top view, (B) is a rear view, (C) is a C arrow directional view in FIG. 4 (A).
- FIG. 1 It is a detailed view of the elastic body shown in FIG. 1, (A) is a top view, (B) is a rear view, (C) is a C arrow view in FIG. 5 (A). It is a detailed view of the protector shown in FIG. 1, (A) is a top view, (B) is a rear view, (C) is a C arrow view in FIG. 6 (A), (D) is FIG. 6 (A).
- FIG. It is a figure which shows the assembly
- FIG. 2 is a detailed view of the first horn plate shown in FIG. 1, (A) is a plan view before assembling the damper, and (B) is a plan view after assembling the damper. It is a figure which shows other embodiment of the steering wheel which concerns on this invention, (A) is 2nd embodiment, (B) is 3rd embodiment, (C) is 4th embodiment.
- FIG. 1 is a cross-sectional view showing a first embodiment of a steering wheel according to the present invention.
- FIG. 2 is an enlarged view of the dynamic damper shown in the first embodiment, where (A) shows a normal time and (B) shows a horn whistling.
- 3 is a detailed view of the first insulator shown in FIG. 1, (A) is a plan view, (B) is a rear view, (C) is a view taken in the direction of arrow C in FIG. 3 (A), and (D).
- FIG. 4 is a DD cross-sectional view in FIG. 4 is a detailed view of the second insulator shown in FIG.
- FIG. 5A and 5B are detailed views of the elastic body shown in FIG. 1, in which FIG. 5A is a plan view, FIG. 5B is a rear view, and FIG. 5C is a view taken along arrow C in FIG. 6 is a detailed view of the protector shown in FIG. 1, in which (A) is a plan view, (B) is a rear view, (C) is a view taken in the direction of arrow C in FIG. 6 (A), and (D) is a diagram.
- FIG. 6D is a cross-sectional view taken along line DD in FIG.
- the steering wheel according to the first embodiment of the present invention includes a main body 1 assembled to a steering shaft S that converts a rotation operation into a steering angle operation, and a substantially central portion of the main body 1.
- a steering wheel having a horn switch 3 between the main body 1 and the pad portion 2 and the pad portion 2 is assembled to the main body portion 1 so as to be movable in the axial direction of the steering shaft S.
- a wheel SW a first horn plate 11 fixed to the main body 1, a second horn plate 21 fixed to the pad 2, a guide pin 12 erected on the second horn plate 21, and a guide A stopper 13 formed at the tip of the pin 12, an insulator 14 slidably inserted along the guide pin 12, and an elastic body fitted to the outer periphery of the insulator 14 5, a protector 16 that is fitted to the outer periphery of the elastic body 15 and can be locked to the first horn plate 11, and a guide pin 12 so as to urge the insulator 14 toward the stopper 13.
- the insulator 14 has a first flange portion 14 a disposed between the stopper 13 and the elastic body 15 and a second flange disposed between the coil spring 17 and the elastic body 15.
- the elastic body 15 includes a first enlarged-diameter portion 15a that is enlarged to be in contact with the first flange portion 14a, and a second enlarged portion that is enlarged to be in contact with the second flange portion 14b. And a plurality of linear protrusions 14c arranged substantially radially are formed on a contact surface of the first flange portion 14a with the first enlarged diameter portion 15a.
- the main body 1 includes a boss 1b fixed to the steering shaft S by a fixture 1a, a plurality of spokes 1c extending in a radial direction from the boss 1b, and a spoke. And an annular rim portion 1d connected to 1c. A wall surface 1e to which the first horn plate 11 is fixed is formed inside the main body 1.
- the configuration of the main body 1 is basically the same as the conventional configuration, and is not limited to the illustrated configuration.
- the pad portion 2 is a component that is disposed at a substantially central portion of the steering wheel SW and accommodates the airbag 22.
- the pad portion 2 is generally resin-molded and configured to be ruptured by a thin portion formed on the back surface when the airbag 22 is inflated and deployed.
- the pad portion 2 includes a wall surface portion 23 to which the second horn plate 21 is fixed and a support portion 24 that comes into contact with the second horn plate 21.
- an inflator 25 that supplies gas to the airbag 22 is fixed to a substantially central portion of the second horn plate 21 fixed to the pad portion 2.
- the airbag 22 is fixed to the second horn plate 21 together with the inflator 25 and is accommodated in the pad portion 2 in a folded state.
- the airbag 22 may be wrapped with a wrapping sheet 26.
- the 2nd horn plate 21 may be comprised with the retainer holding the inflator 25 instead of a separate component.
- the first horn plate 11 includes a first flat surface portion 11a through which the guide pin 12 is inserted, a second flat surface portion 11b in which the fixed contact 3a of the horn switch 3 is disposed, And a side surface portion 11c connecting the flat surface portion 11a and the second flat surface portion 11b.
- the side surface portion 11c is fixed to the wall surface portion 1e of the main body portion 1 by a fixing tool such as a rivet.
- the second horn plate 21 includes a first flat surface portion 21 a on which the inflator 25 is fixed and the guide pin 12 is erected, and a movable contact 3 b of the horn switch 3. It has two plane parts 21b, and a side part 21c that connects the first plane part 21a and the second plane part 21b.
- the side surface portion 21c is fixed to the wall surface portion 23 of the pad portion 2 by a fixing tool such as a rivet.
- the main body 1 and the pad 2 described above are movable in the axial direction of the steering shaft S and vibrated by a dynamic damper constituted by the guide pin 12, the stopper 13, the insulator 14, the elastic body 15, the protector 16, and the coil spring 17. It can be reduced.
- a dynamic damper constituted by the guide pin 12, the stopper 13, the insulator 14, the elastic body 15, the protector 16, and the coil spring 17.
- the guide pin 12 is configured in a nut shape integrally formed with the stopper 13, and a fixing member 18 such as a bolt is screwed together with the second horn plate 21 interposed therebetween. Fixed to the horn plate 21.
- the stopper 13 is formed integrally with the tip of the guide pin 12 and is constituted by a flange portion whose diameter is larger than that of the guide pin 12.
- a washer 19 or the like may be interposed between the stopper 13 and the insulator 14.
- the insulator 14 is a member that slides along the guide pin 12 while holding the elastic body 15.
- the insulator 14 has a cross-sectional shape in which a substantially H-shape is laid down, and sandwiches the elastic body 15 between the first flange portion 14a and the second flange portion 14b.
- the insulator 14 may be an integrally molded part having the first flange part 14a and the second flange part 14b, or may be a part formed by assembling a plurality of parts.
- the insulator 14 shown in FIG. 2 is divided into a first insulator 141 having a first flange portion 14a and a second insulator 142 having a second flange portion 14b.
- the first insulator 141 is extended toward the first flange portion 14a, the first flange portion 14a toward the second flange portion 14b, and the guide pin 12.
- a first leg portion 14d disposed along the first leg portion 14d.
- an opening 14 e through which the guide pin 12 is inserted is formed at the center of the first insulator 141.
- a plurality of irregularities 14f are formed on the surface of the first flange portion 14a on the stopper 13 side.
- the projections and recesses 14f are formed by grid-shaped projections, but the present invention is not limited to this, and grid-shaped depressions, mesh-like projections or depressions, parallel-line projections or depressions, and a plurality of arranged It may be formed by a plurality of point-like protrusions or depressions, or a plurality of point-like protrusions or depressions dispersed arbitrarily.
- the first flange portion 14a of the first insulator 141 has a recess 14g that can be engaged with the columnar protrusion 16e (see FIG. 6) of the protector 16 at the peripheral portion.
- the protector 16 and the first insulator 141 can be locked in the circumferential direction, and the rotation of the first insulator 141 (that is, the insulator 14) can be suppressed. Wear of the elastic body 15 can be suppressed.
- the first flange portion 14a of the first insulator 141 has a notch portion 14h at the peripheral portion where the claw portion 16f (see FIG. 6) of the protector 16 locked to the first horn plate 11 can be seen in plan view.
- the cutout portion 14h By forming the cutout portion 14h, the assembled state of the dynamic damper can be easily confirmed.
- first flange portion 14a of the first insulator 141 has a through hole 14i through which the elastic body 15 assembled to the insulator 14 can be seen. By forming the through hole 14i, the assembled state of the elastic body 15 can be easily confirmed.
- a plurality of linear protrusions 14c are formed on the back surface of the first flange portion 14a.
- the linear protrusions 14c are radially formed on a portion having the maximum diameter D1 of the first flange portion 14a, but are not limited to the illustrated arrangement, and other portions on the back surface of the first flange portion 14a.
- short linear protrusions may be added, and some of the linear protrusions may not be arranged radially.
- the first flange portion 14a has a radial width Rf1 at a portion having the maximum diameter D1.
- the linear protrusion 14c is a protrusion having a substantially semicircular cross section having a length L, a width w, and a height h. Then, by appropriately adjusting the number, the length L, the width w, or the height h of the linear protrusions 14c, the linear protrusions 14c are configured to be able to bite into the elastic body 15 so as to generate a desired frictional force. To do. By adjusting the frictional force, the amplitude or frequency generated by the vibration of the pad portion 2 can be arbitrarily adjusted. Further, the radial width Rf1 of the first flange portion 14a may be adjusted according to the required length L of the linear protrusion 14c. Note that the width w of the linear protrusion 14c does not have to be uniform over the length L, and gradually increases toward the outer side in the radial direction, gradually decreasing, or intermediate. You may set so that it may become the maximum in a part.
- the first leg portion 14d is erected on a part of the peripheral edge portion of the opening portion 14e and can be locked to the second insulator 142 at the tip portion. It has a claw portion 14j.
- the number of the second leg portions 14k may be three or more.
- the first leg portion 14d forms a substantially cylindrical portion that is disposed along the guide pin 12 in combination with a second leg portion 14k of the second insulator 142 described later.
- the second insulator 142 is extended toward the first flange portion 14a from the second flange portion 14b, the second flange portion 14b, and the guide pin 12. 2nd leg part 14k arrange
- an opening 141 for inserting the guide pin 12 is formed at the center of the second insulator 142.
- an accommodation portion 14m into which the first leg portion 14d of the first insulator 141 can be inserted is formed at the peripheral edge portion of the opening portion 141 of the second flange portion 14b. ing.
- a substantially cylindrical portion that can slide along the guide pin 12 is formed. Can be formed.
- the second flange portion 14b of the second insulator 142 has a through hole 14n through which the elastic body 15 assembled to the insulator 14 can be seen. By forming the through hole 14n, the assembled state of the elastic body 15 can be easily confirmed.
- a spring guide 14o is formed on the surface of the second flange portion 14b on the coil spring 17 side so as to stand along the peripheral edge of the opening 141. Yes.
- a coil spring 17 is inserted through the outer periphery of the spring guide 14o.
- the spring guide 14o may have a claw portion (not shown) with which the inserted coil spring 17 is engaged.
- the second leg portion 14k is formed along the opening portion 14l of the second flange portion 14b.
- four second leg portions 14k are illustrated, but the second leg portion 14k may be two, three, or five or more. Good.
- a stopper wall 14p that can be brought into contact with the surface of the protector 16 may be formed on the peripheral edge of the surface of the second flange portion 14b on the elastic body 15 side.
- the stopper wall 14p is in contact with the surface of the protector 16 so that when the elastic body 15 is pressed between the second flange portion 14b and the protector 16, a predetermined load or more is not applied to the elastic body 15. It has a function to ensure a certain interval.
- the stopper wall 14p may be configured such that a step portion is formed on the contact surface with the protector 16 so that a part of the stopper wall 14p contacts the protector 16.
- a plurality of dot-like protrusions 14q are formed on the contact surface of the second flange portion 14b with the elastic body 15 (second diameter-expanded portion 15b).
- a frictional force can be generated between the insulator 14 and the elastic body 15 in the second flange portion 14b, and the frictional force generated in the first flange portion 14a can be assisted. it can.
- the point-like protrusions 14q are arranged at four places, but the arrangement and shape are not limited to those shown in the figure, and the arrangement places, the number, the size of the diameter, and the like can be arbitrarily set.
- the second flange portion 14b is formed in a disc shape having a diameter D2.
- the diameter D2 is set to be smaller than the maximum diameter D1 of the first flange portion 14a.
- the second flange portion 14b has a radial width Rf2 at a portion having the diameter D2. Accordingly, the radial width Rf1 of the first flange portion 14a is set to have a portion (for example, a portion having the maximum diameter D1) formed to be larger than the radial width Rf2 of the second flange portion 14b.
- the radial width Rf1 of the first flange portion 14a is set to, for example, 1.5 times or more the radial width Rf2 of the second flange portion 14b, and preferably 1.5 to 2.0 times or 1.5 to It is set within the range of 3.0 times.
- the upper limit of the radial width Rf1 (or the maximum diameter D1) of the first flange portion 14a is determined by the shape and size of the first horn plate 11 on which the first insulator 141 is disposed.
- the elastic body 15 is fitted between the first flange portion 14a and the second flange portion 14b of the insulator 14 constituted by the first insulator 141 and the second insulator 142. Rubber molded parts.
- the elastic body 15 has a thin and substantially cylindrical shape, and includes a substantially cylindrical body portion 15c and a first flange portion 14a side of the body portion 15c. It has the 1st enlarged diameter part 15a formed in the edge part, and the 2nd enlarged diameter part 15b formed in the edge part by the side of the 2nd flange part 14b of the trunk
- an opening 15d through which the first leg 14d and the second leg 14k of the insulator 14 can be inserted is formed at the center of the elastic body 15.
- the first enlarged diameter portion 15a has a recess 15e that can be engaged with the columnar protrusion 16e (see FIG. 6) of the protector 16 at the peripheral edge.
- the recessed part 15e is formed in the same shape as the recessed part 14g formed in the 1st flange part 14a of the 1st insulator 141, for example.
- the first enlarged diameter portion 15a has a notch portion 15f at a peripheral portion where the claw portion 16f (see FIG. 6) of the protector 16 locked to the first horn plate 11 can be visually observed in a plan view.
- the cutout portion 15f is formed in the same shape as the cutout portion 14h formed in the first flange portion 14a of the first insulator 141, for example. By forming the cutout portion 15f, the assembled state of the dynamic damper can be easily confirmed.
- the first enlarged diameter portion 15a has a maximum diameter D1 ′ in a portion where the concave portion 15e and the cutout portion 15f are not formed.
- the maximum diameter D1 ′ is set to be approximately the same as the maximum diameter D1 of the first flange portion 14a in the first insulator 141. That is, the first flange portion 14a of the first insulator 141 and the first enlarged diameter portion 15a of the elastic body 15 have substantially the same shape, and the shapes of the first flange portion 14a and the elastic body 15 coincide with each other by the claw portion 16f of the protector 16. Positioned.
- the second enlarged diameter portion 15b has a cutout portion 15g formed at a position corresponding to the cutout portion 15f of the first enlarged diameter portion 15a on the peripheral edge portion.
- the notch 15g is provided with a stopper wall 14p formed on the second flange portion 14b so that the stopper wall 14p and the protector 16 can come into contact with each other.
- the second enlarged diameter portion 15b has a maximum diameter D2 ′ in a portion where the notch portion 15g is not formed.
- the maximum diameter D2 ′ is set to be approximately the same as the diameter D2 of the second flange portion 14b in the second insulator 142. That is, the second flange portion 14b of the second insulator 142 and the second enlarged diameter portion 15b of the elastic body 15 have substantially the same shape.
- the first enlarged diameter portion 15a has a radial width Rw1 in a portion having the maximum diameter D1 ′.
- the second enlarged diameter portion 15b has a radial width Rw2 in the portion having the maximum diameter D2 ′.
- the radial width Rw1 is substantially the same size as the radial width Rf1 of the first flange portion 14a
- the radial width Rw2 is substantially the same size as the radial width Rf2 of the second flange portion 14b. is there.
- the radial width Rw1 of the first enlarged diameter portion 15a has a portion formed larger than the radial width Rw2 of the second enlarged diameter portion 15b.
- variety Rf1 of the 1st enlarged diameter part 15a increases / decreases the contact area of the linear protrusion 14c formed in the 1st flange part 14a, and the elastic body 15, and produces a desired frictional force. Is set to be able to. Therefore, by adjusting the radial width Rf1 of the first enlarged diameter portion 15a, the amplitude or frequency generated by the vibration of the pad portion 2 can be arbitrarily adjusted.
- the first enlarged diameter portion 15a has a thickness t.
- the first enlarged diameter portion 15a is a portion sandwiched between the insulator 14 and the protector 16, and the linear protrusion 14c formed on the first flange portion 14a and the elastic body 15 are adjusted by adjusting the thickness t.
- the desired contact force can be generated by increasing / decreasing the contact area. That is, by adjusting the thickness t of the first enlarged diameter portion 15a, the amplitude or frequency generated by the vibration of the pad portion 2 can be arbitrarily adjusted.
- the protector 16 is a member that protects the elastic body 15 from direct contact with the first horn plate 11, as shown in FIG. Specifically, the protector 16 is disposed between the first enlarged diameter portion 15a and the second enlarged diameter portion 15b of the elastic body 15. By arranging such a protector 16, there is no rubbing between the elastic body 15 and the first horn plate 11 when the dynamic damper vibrates or when the horn whistle, and it is possible to effectively suppress wear of the elastic body 15. it can.
- the protector 16 has a thin and generally cylindrical shape as a whole.
- the protector 16 has a generally cylindrical body portion 16a and a first enlarged diameter portion 15a of the body portion 16a.
- a first expansion portion 16b formed at the end portion on the side, and a second expansion portion 16c formed at the end portion of the body portion 16a on the second diameter expansion portion 15b side.
- an opening 16 d through which the body 15 c of the elastic body 15 can be inserted is formed at the center of the protector 16.
- the protector 16 includes an extended portion (first extended portion 16b) extended so as to be in contact with the first enlarged diameter portion 15a, and an extended portion (first extended portion). 16b) and a columnar protrusion 16e standing on the surface.
- the columnar protrusion 16e is configured to be engageable with a recess 14g formed in the first flange portion 14a of the insulator 14 and a recess 15e formed in the first enlarged diameter portion 15a of the elastic body 15.
- the columnar protrusions 16e can suppress the rotation of the insulator 14 and the elastic body 15, and can suppress the wear of the insulator 14 and the elastic body 15. Further, as shown in FIG.
- the columnar protrusion 16 e is disposed so as to be able to contact the stopper 13, and the elastic body 15 is compressed between the stopper 13 and the first horn plate 11.
- the columnar protrusion 16e is configured to abut against the stopper 13 so that an excessive load is not applied to the elastic body 15.
- the body portion 16a of the protector 16 has a claw portion 16f that can be locked to the first horn plate 11.
- the 1st expansion part 16b has the notch part 16g which can visually recognize the nail
- the notch 16g is formed in substantially the same shape as the notch 14h of the insulator 14 and the notch 15f of the elastic body 15. Therefore, even when the protector 16 is locked to the first horn plate 11, the claw portion 16f does not obstruct the first flange portion 14a, the first enlarged diameter portion 15a, and the first extended portion 16b. It can be visually confirmed and the assembled state can be easily confirmed.
- the claw portion 16f is formed between the first extension portion 16b and the second extension portion 16c and is configured to be displaceable in the radial direction by an elastic force. Yes.
- the claw portions 16f are arranged at two locations on the outer periphery of the trunk portion 16a.
- the claw portions 16f may be arranged at three or more locations, and at least one visible claw portion 16f may be provided. That is, the notches 14h, 15f, and 16g may be formed so that at least one claw portion 16f can be seen.
- a predetermined gap is formed in the axial direction of the body portion 16a between the first extension portion 16b and the second extension portion 16c.
- a first horn plate 11 is attached.
- a contact portion 16h that contacts the first horn plate 11 may be formed in the second extension portion 16c.
- the coil spring 17 is inserted between the insulator 14 and the second horn plate 21, and abuts against the second flange portion 14b of the insulator 14 to stop the insulator 14 as a stopper. It is energized in the direction to press against 13.
- the elastic body 15 is fitted into the outer circumference of the insulator 14 and the protector 16 is fitted into the outer circumference, so that the elastic body 15 is not crushed by the urging force of the coil spring 17. The load applied to the elastic body 15 can be reduced and the life of the elastic body 15 can be extended.
- the insulator 14 is divided into a first insulator 141 and a second insulator 142, and the first leg portion 14 d of the first insulator 141 is configured to be able to contact the stopper 13 or the washer 19. Can be received by the first leg portion 14d, and the load applied to the elastic body 15 can be effectively reduced.
- the second horn plate 21 moves in the direction of the arrow in FIG.
- the insulator 14 is locked to the first horn plate 11 fixed to the main body 1 via the protector 16, and the guide pin 12 is fixed to the second horn plate 21.
- the guide pin 12 moves while sliding in the insulator 14 in the direction of the arrow in the figure. Then, when the movable contact 3b formed on the second horn plate 21 comes into contact with the fixed contact 3a formed on the first horn plate 11 shown in FIG. 1, the horn switch 3 is activated to make a sound.
- the insulator 14 (second insulator 142) pressed by the coil spring 17 can reduce the load applied to the elastic body 15 by the stopper wall 14p coming into contact with the protector 16. it can.
- FIG. 7 is a diagram showing an assembly process of the dynamic damper shown in FIG. 1, (A) is an assembly process of the elastic body, (B) is an assembly process of the first insulator, and (C) is the second process.
- the assembly process of an insulator is shown.
- 2A and 2B are detailed views of the first horn plate shown in FIG. 1, in which FIG. 1A is a plan view before the damper is assembled, and FIG. 2B is a plan view after the damper is assembled.
- the elastic body 15 is assembled to the protector 16 as shown in FIG. Specifically, the elastic body 15 is inserted into the opening 16 d of the protector 16, the first enlarged diameter portion 15 a of the elastic body 15 is disposed on the surface of the first expanded portion 16 b of the protector 16, and the The two enlarged diameter portions 15b are assembled so as to be disposed on the end face of the body portion 16a of the protector 16. At this time, the columnar protrusions 16e of the protector 16 are aligned so as to be disposed in the recesses 15e of the elastic body 15.
- the first insulator 141 is assembled to the assembly of the protector 16 and the elastic body 15. Specifically, the first leg portion 14 d of the first insulator 141 is inserted into the opening portion 15 d of the elastic body 15. At this time, the columnar protrusions 16e of the protector 16 are aligned so as to be disposed in the recesses 14g of the first insulator 141.
- the second insulator 142 is assembled to the assembly of the protector 16, the elastic body 15, and the first insulator 141. Specifically, the second leg portion 14k of the second insulator 142 is inserted into the opening 15d of the elastic body 15, and the claw portion 14j is locked to the surface of the second flange portion 14b. At this time, alignment is performed so that the first leg portion 14 d of the first insulator 141 is disposed in the accommodating portion 14 m of the second insulator 142.
- the assembly by the insulator 14, the elastic body 15, and the protector 16 can be comprised by this process.
- This assembly may be assembled as a unit before being connected to the first horn plate 11, or the elastic body 15 and the insulator 14 may be sequentially assembled after the protector 16 is connected to the first horn plate 11. It may be. Note that the order of the assembly process of the first insulator 141 and the assembly process of the second insulator 142 may be interchanged.
- the first horn plate 11 to which the protector 16 is locked is provided with the first flat surface portion 11a through which the guide pin 12 is inserted and the fixed contact 3a of the horn switch 3. It has the 2nd plane part 11b and the opening part 11d in which the inflator 25 is arrange
- a plurality of locking holes 11e for locking the protector 16 are formed in the first flat surface portion 11a.
- the locking hole 11e has a notch portion 11f that can be inserted through the second expansion portion 16c of the protector 16, and a notch 11g that can be locked with the claw portion 16f of the protector 16.
- the arrangement and the number of the notches 11f and the notches 11g are set according to the arrangement and the number of the second expansion parts 16c and the claw parts 16f of the protector 16.
- the locking hole 11e is formed at, for example, the 2 o'clock, 6 o'clock, and 10 o'clock positions with the opening 11d as the center.
- the elastic body 15 and the protector 16 in the locking hole 11e of the first horn plate 11 is moved.
- the claw portion 16f of the protector 16 is inserted through the cutout portion 11f of the locking hole 11e (for example, the state shown at the position of the locking hole 11e at the upper left in the figure) and the assembly (protector 16) is rotated by 90 °. Is engaged with the notch 11g of the engagement hole 11e (for example, the state shown at the position of the engagement hole 11e on the upper right in the figure).
- the elastic body 15 can be in direct contact with the stopper 13 of the guide pin 12, the first horn plate 11, the second horn plate 21, and the coil spring 17.
- the load and wear applied to the elastic body 15 can be reduced, and the life of the dynamic damper can be extended.
- the linear protrusion 14 c for the contact between the insulator 14 and the elastic body 15, it is possible to effectively generate a frictional force between the insulator 14 and the elastic body 15.
- FIG. 9 is a figure which shows other embodiment of the steering wheel which concerns on this invention, (A) is 2nd embodiment, (B) is 3rd embodiment, (C) is 4th embodiment. .
- symbol is attached
- the dynamic damper shown in FIG. 1 is arranged upside down. Specifically, the guide pin 12 is erected on the first horn plate 11, and the stopper 13 is disposed on the second horn plate 21 side. Even with this configuration, the same effects as the steering wheel SW shown in the first embodiment can be obtained.
- the first flange portion 14a and the second flange portion 14b of the insulator 14 are molded as an integral structure. Specifically, the insulator 14 is formed on the body 14r inserted through the elastic body 15, the first flange portion 14a formed on the stopper 13 side of the body 14r, and the coil spring 17 side of the body 14r. And a second flange portion 14b. Even with this configuration, only the assembly method is different, and the same effect as the steering wheel SW shown in the first embodiment can be obtained.
- the linear protrusion 14c is constituted by a plurality of dotted protrusions 14s arranged in a straight line.
- the dotted projection 14s can also form a dotted projection, has substantially the same configuration as the linear projection 14c, and has the same effect as the linear projection 14c.
- the diameters of the dot-shaped protrusions 14s do not have to be all the same size, and gradually increase toward the outside in the radial direction, gradually decrease, or maximum at the intermediate portion. You may set so that it may become.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Steering Controls (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
- Air Bags (AREA)
Abstract
Description
2 パッド部
3 ホーンスイッチ
11 第一ホーンプレート
12 ガイドピン
13 ストッパ
14 インシュレータ
14a 第一フランジ部
14b 第二フランジ部
14c 線状突起
14d 第一脚部
14f 凹凸
14g 凹部
14i,14n 透孔
14k 第二脚部
14q,14s 点状突起
15 弾性体
15a 第一拡径部
15b 第二拡径部
15e 凹部
16 プロテクタ
16b 第一拡張部
16c 第二拡張部
16e 柱状突起
16f 爪部
16g 切欠部
17 コイルスプリング
21 第二ホーンプレート
141 第一インシュレータ
142 第二インシュレータ
Claims (9)
- 回転操作を舵角操作に変換するステアリングシャフトに組み付けられる本体部と、該本体部の略中央に配置されるパッド部と、を有し、前記ステアリングシャフトの軸方向に移動可能に前記パッド部を前記本体部に組み付け、前記本体部と前記パッド部との間でホーンスイッチを構成したステアリングホイールにおいて、
前記本体部に固定された第一ホーンプレートと、前記パッド部に固定された第二ホーンプレートと、前記第一ホーンプレート又は前記第二ホーンプレートの一方に立設されたガイドピンと、該ガイドピンの先端に形成されたストッパと、前記ガイドピンに沿って摺動可能に挿通されたインシュレータと、該インシュレータの外周に嵌合された弾性体と、該弾性体の外周に嵌合されるとともに前記第一ホーンプレート又は前記第二ホーンプレートの他方に係止可能に配置されたプロテクタと、前記インシュレータを前記ストッパに向けて付勢するように前記ガイドピンに挿通されたコイルスプリングと、を有し、
前記インシュレータは、前記ストッパと前記弾性体との間に配置される第一フランジ部と、前記コイルスプリングと前記弾性体との間に配置される第二フランジ部と、を備え、前記弾性体は、前記第一フランジ部と接触可能に拡径された第一拡径部と、前記第二フランジ部と接触可能に拡径された第二拡径部と、を備え、
前記第一フランジ部の前記第一拡径部との接触面には、略放射状に配置された複数の線状突起が形成されている、ことを特徴とするステアリングホイール。 - 前記第一フランジ部及び前記第一拡径部の径方向幅、前記第一拡径部の厚さ、又は、前記線状突起の本数、長さ、高さ若しくは幅のいずれかを調整することによって、前記パッド部の振動により生じる振幅又は周波数を調整する、ことを特徴とする請求項1に記載のステアリングホイール。
- 前記第一フランジ部及び前記第一拡径部の径方向幅は、前記第二フランジ部及び前記第二拡径部の径方向幅よりも大きく形成された部分を有する、ことを特徴とする請求項1に記載のステアリングホイール。
- 前記第二フランジ部の前記第二拡径部との接触面には、複数の点状突起が形成されている、ことを特徴とする請求項1に記載のステアリングホイール。
- 前記第一フランジ部の前記ストッパ側の表面には、複数の凹凸が形成されている、ことを特徴とする請求項1に記載のステアリングホイール。
- 前記インシュレータは、前記第一フランジ部と、前記第一フランジ部から前記第二フランジ部に向かって延設されるとともに前記ガイドピンに沿って配置される第一脚部と、を備える第一インシュレータと、前記第二フランジ部と、前記第二フランジ部から前記第一フランジ部に向かって延設されるとともに前記ガイドピンに沿って配置される第二脚部と、を備える第二インシュレータと、に分割されている、ことを特徴とする請求項1に記載のステアリングホイール。
- 前記プロテクタは、前記第一拡径部と接触可能に拡張された拡張部と、該拡張部の表面に立設された柱状突起と、を有し、前記第一フランジ部及び前記第一拡径部は、前記柱状突起と係止可能な凹部を有する、ことを特徴とする請求項1に記載のステアリングホイール。
- 前記プロテクタは、外周面に前記第一ホーンプレート又は前記第二ホーンプレートに係止可能な爪部を有し、前記拡張部、前記第一フランジ部及び前記第一拡径部は、前記第一ホーンプレート又は前記第二ホーンプレートに係止した前記爪部を目視可能な切欠部を有する、ことを特徴とする請求項1に記載のステアリングホイール。
- 前記第一フランジ部及び前記第二フランジ部は、組み付けられた前記弾性体を目視可能な透孔を有する、ことを特徴とする請求項1に記載のステアリングホイール。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11840746.9A EP2641811B1 (en) | 2010-11-19 | 2011-11-16 | Steering wheel |
CN201180063994.6A CN103298680B (zh) | 2010-11-19 | 2011-11-16 | 方向盘 |
US13/885,895 US9195257B2 (en) | 2010-11-19 | 2011-11-16 | Steering wheel |
JP2012544271A JP5519803B2 (ja) | 2010-11-19 | 2011-11-16 | ステアリングホイール |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010258659 | 2010-11-19 | ||
JP2010-258659 | 2010-11-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012067131A1 true WO2012067131A1 (ja) | 2012-05-24 |
Family
ID=46084054
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2011/076354 WO2012067131A1 (ja) | 2010-11-19 | 2011-11-16 | ステアリングホイール |
Country Status (5)
Country | Link |
---|---|
US (1) | US9195257B2 (ja) |
EP (1) | EP2641811B1 (ja) |
JP (2) | JP5519803B2 (ja) |
CN (1) | CN103298680B (ja) |
WO (1) | WO2012067131A1 (ja) |
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WO2014024703A1 (ja) * | 2012-08-06 | 2014-02-13 | タカタ株式会社 | ステアリングホイール |
JP2014031133A (ja) * | 2012-08-06 | 2014-02-20 | Takata Corp | ステアリングホイール |
JP2014111426A (ja) * | 2012-11-12 | 2014-06-19 | Toyoda Gosei Co Ltd | ステアリングホイールの制振構造 |
JP2015231841A (ja) * | 2012-11-12 | 2015-12-24 | 豊田合成株式会社 | ステアリングホイールの制振構造 |
JP2016199183A (ja) * | 2015-04-13 | 2016-12-01 | タカタ株式会社 | ステアリングホイール |
KR20190125418A (ko) * | 2017-03-14 | 2019-11-06 | 아우토리브 디벨롭먼트 아베 | 차량의 혼 제어 장치 |
KR102264140B1 (ko) | 2017-03-14 | 2021-06-11 | 아우토리브 디벨롭먼트 아베 | 차량의 혼 제어 장치 |
US11351915B2 (en) | 2018-04-26 | 2022-06-07 | Joyson Safety Systems Japan K.K. | Steering wheel |
JP7395531B2 (ja) | 2021-03-11 | 2023-12-11 | オートリブ ディベロップメント エービー | 車両用ステアリングホイール装置及びその製造方法 |
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JPWO2012067131A1 (ja) | 2014-05-12 |
US9195257B2 (en) | 2015-11-24 |
EP2641811A1 (en) | 2013-09-25 |
JP5756544B2 (ja) | 2015-07-29 |
US20130239739A1 (en) | 2013-09-19 |
EP2641811A4 (en) | 2014-07-30 |
EP2641811B1 (en) | 2015-09-30 |
CN103298680A (zh) | 2013-09-11 |
CN103298680B (zh) | 2016-01-06 |
JP5519803B2 (ja) | 2014-06-11 |
JP2014141255A (ja) | 2014-08-07 |
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