CN102632957B - Connection structure for steering columns of straddle type vehicle - Google Patents
Connection structure for steering columns of straddle type vehicle Download PDFInfo
- Publication number
- CN102632957B CN102632957B CN201210018329.1A CN201210018329A CN102632957B CN 102632957 B CN102632957 B CN 102632957B CN 201210018329 A CN201210018329 A CN 201210018329A CN 102632957 B CN102632957 B CN 102632957B
- Authority
- CN
- China
- Prior art keywords
- column
- packing ring
- diameter
- column packing
- turns
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
In a connection structure for steering columns of a straddle type vehicle, the diameter (I) of a steering handle column connection part (34) which is above a threaded part (33B) that is connected with a locking nut is set to be smaller than the diameter (J) of the threaded part (33B). Furthermore the diameter of a circle in which a line segment (L1) from a central part front end (56A) of a clamping projection (56) of a column washer (50) to an inner margin of the column washer (50) through the center (O) of the column washer (50) is set to be larger than the diameter (I) of the steering handle column connection part (34). The inner diameter of the column washer (50) is set to same with the diameter (J) of the threaded part (33B) of the steering column (30). Furthermore, a groove part (35) of the steering column (30) is only equipped next to the upper part of an upper nut (45) of the steering column (30). Thus, machining parts of the steering columns can be reduced in the connection structure for the steering columns of the straddle type vehicle, thereby facilitating machining.
Description
Technical field
The present invention relates to a kind of connection structure that turns to column of Straddle riding type vehicle.
Background technology
Existing, as the connection structure that turns to column of Straddle riding type vehicle, known such connection structure (for example, with reference to patent documentation 1), this connection structure, at the bearing setting up and down of head tube, turns to column by this bearing pivotal support.
In addition, as similarly turning to the connection structure of column, such connection structure shown in known Figure 10 (a) with patent documentation 1.In this connection structure, the bottom that turns to column 100 by pivotal support in the inner ring 102A of the lower bearing 102 of head tube 101, the top that turns to column 100 by pivotal support in the inner ring 103A of the upper bearing 103 of head tube 101, the mode that screw top part 104 applies precompressed by the top from this inner ring 103A to inner ring 103A is subject to fastening, above screw top part 104, configure column packing ring 105, from the top of this column packing ring 105, jam nut 106 is connected to and is turned to column 100, thereby arrange and turn to column 100 in head tube 101.
Here, column packing ring 105 for preventing the parts of rotation together with screw top part 104 is under the rubbing effect with jam nut 106 when tightening jam nut 106, as shown in Figure 10 (b), there is the engaging teat 105A extending from perimembranous in it to radially inner side.Specifically, turning to the keyway 100A extending on arranging along the vertical direction by machine up on column 100, in this keyway 100A, engage the engaging teat 105A of column packing ring 105, thereby prevent column packing ring 105 with respect to 100 rotations that turn to column.Like this, when tightening jam nut 106, column packing ring 105 does not rotate, and screw top part 104 in the bottom can not rotate yet, thereby has prevented the rotation of following of screw top part 104.
Patent documentation 1: Japanese kokai publication hei 5-170163 communique
Summary of the invention
, in above-mentioned existing structure, the keyway 100A that turns to column 100 from turn to the upper end of column 100 be formed into screw top part 104 near, with respect to the needed length of spline of column packing ring 105, the length of keyway 100A is larger.For this reason, turn to the working position of column 100 elongated, have the treating cost problem of time.
The present invention In view of the foregoing makes, and its object is, reduces the working position that turns to column in the connection structure that turns to column of Straddle riding type vehicle, makes handling ease.
In order to achieve the above object, the invention provides a kind of connection structure that turns to column of Straddle riding type vehicle, this Straddle riding type vehicle has head tube 11 and fork member 26, this head tube 11 is located at the front portion of vehicle frame 10, this fork member 26 has the breeches pipe 16 in the left and right of bottom pivotal support front-wheel, the bridging part 15 that connects the breeches pipe 16 of this left and right, and be located at the centre of this bridging part 15 and towards top, extend by pivotal support, in above-mentioned head tube 11, turned to column 30, above-mentioned turning to, slot part 35 or the chamfered section 235 along column axis is set on column 30, the above-mentioned bottom pivotal support that turns to column 30 is in the inner ring 42B of bearing 42 that is arranged on the bottom of above-mentioned head tube 11, at the above-mentioned top setting-in that turns to column 30, be located at the inner ring 41B of bearing 41 on the top of above-mentioned head tube 11, above-mentioned turn on column 30, connect the screw top part 45 that applies precompressed to being located at the above-mentioned inner ring 41B of above-mentioned bearing 41 on the top of above-mentioned head tube 11, above this screw top part 45, configure column packing ring 50, 250, this column packing ring 50, 250 have and the above-mentioned above-mentioned slot part 35 of column 30 or engaging teat 56 or the engaging face 256 of above-mentioned chamfered section 235 engagings of turning to, jam nut 51 is from this column packing ring 50, 250 top is connected with the above-mentioned column 30 that turns to, it is characterized in that: the external diameter I that turns to column top 34 than the top side of threaded portion 33B who is connected with above-mentioned jam nut 51 is set littlely than the external diameter J of this threaded portion 33B, and with from above-mentioned column packing ring 50, 250 above-mentioned engaging teat 56 or the central portion front end 56A of above-mentioned engaging face 256, 256A is by above-mentioned column packing ring 50, 250 center O arrives this column packing ring 50, the line segment L1 of 250 inner edge, L3 is that this diameter K of the round Q of diameter is set greatlyr than the above-mentioned external diameter I on column top 34 that turns to, above-mentioned column packing ring 50, 250 internal diameter M is set identically with the external diameter J of the above-mentioned threaded portion 33B that turns to column 30, and, the above-mentioned above-mentioned slot part 35 that turns to column 30 or above-mentioned chamfered section 235 are only arranged near the top of the above-mentioned above-mentioned screw top part 45 that turns to column 30.
According to this formation, turn to the external diameter on column top to be set littlely than the external diameter of the threaded portion being connected with jam nut, this diameter that from the engaging teat of column packing ring or the central portion front end of the engaging face center by column packing ring arrives the circle that the line segment of the inner edge of column packing ring is diameter of take is set greatlyr than turning to the external diameter on column top, the internal diameter of column packing ring be set with turn to the external diameter of threaded portion of column identical, for this reason, when column packing ring being entrenched in while turning on column, can arrive this diameter of the circle that the line segment of the inner edge of column packing ring is diameter along take from the engaging teat of column packing ring or the central portion front end of the engaging face center by column packing ring, make column packing ring through turning to column top.For this reason, can not make column packing ring through turning to column turning to column top that slot part or chamfered section are set, only turn to column screw top part above nearby slot part or chamfered section are set, for this reason, can make slot part or chamfered section short, can make working position few.Like this, processing becomes easily, and tooling cost also reduces.
In addition, in the above-described configuration, the overhang H of above-mentioned engaging teat 56 or above-mentioned engaging face 256 is formed to such an extent that than above-mentioned, turn to the step discrepancy in elevation G between the external diameter I on column top 34 and the external diameter J of above-mentioned threaded portion 33B larger, and depth D, the D2 of above-mentioned slot part 35 or above-mentioned chamfered section 235 is formed deeplyer than the size of above-mentioned step discrepancy in elevation G.
In this occasion, the overhang of engaging teat or engaging face is formed greatlyr than turning to the step discrepancy in elevation between the external diameter on column top and the external diameter of threaded portion, the degree of depth of slot part or chamfered section is formed deeplyer than the high extent of step, for this reason, can make engaging teat or engaging face be fastened on dearly slot part or chamfered section and positively engaging, and, even for to have than the column packing ring of the longer engaging teat of the above-mentioned step discrepancy in elevation or engaging face, also can arrive the circle diameter that the line segment of the inner edge of column packing ring is diameter along take from the engaging teat of column packing ring or the central portion front end of the engaging face center by column packing ring, thereby avoid engaging teat or engaging face to contact with turning to column top.Like this, need to not turn to column top that slot part or chamfered section are set, for this reason, can make working position few.
In the connection structure that turns to column of Straddle riding type vehicle of the present invention, when column packing ring being entrenched in while turning on column, can arrive the circle diameter that the line segment of the inner edge of column packing ring is diameter along take from the engaging teat of column packing ring or the central portion front end of the engaging face center by column packing ring, make column packing ring through turning to column top.For this reason, even if can not make column packing ring through turning to column turning to column top that slot part or chamfered section are set yet, if only turn to column screw top part above nearby slot part or chamfered section are set, for this reason, can make slot part or chamfered section short, can make working position few.Like this, processing becomes easily, and tooling cost also reduces.
In addition, can make engaging teat or engaging face be fastened on dearly slot part or chamfered section and positively engaging, and, even for having than above-mentioned engaging teat that the step discrepancy in elevation between the external diameter on column top and the external diameter of threaded portion is longer or the column packing ring of engaging face of turning to, when column packing ring being entrenched in while turning on column, also can arrive the circle diameter that the line segment of the inner edge of column packing ring is diameter along take from the engaging teat of column packing ring or the central portion front end of the engaging face center by column packing ring, make column packing ring through turning to column top, for this reason, even if can not make column packing ring through turning to column turning to column top that slot part or chamfered section are set yet.For this reason, if only turn to column screw top part above nearby slot part or chamfered section are set, can make slot part or chamfered section short, so, can make working position few.As a result, processing becomes easily, and tooling cost also reduces.
Accompanying drawing explanation
Fig. 1 is for representing to be suitable for the left side view of two-wheeled vehicle frame of the connection structure that turns to column of the Straddle riding type vehicle of the present invention's the 1st embodiment.
Fig. 2 is for watching the figure nearby of head tube from vehicle front side.
Fig. 3 is the amplification view that expression turns to the connection structure of column.
Fig. 4 is the birds-eye view of column packing ring.
Fig. 5 is the cutaway view that column packing ring is inserted through the state on steering handle pillar connecting portion.
Fig. 6 is the cutaway view that column packing ring is inserted through the state on threaded portion.
Fig. 7 is the birds-eye view of the column packing ring of the 2nd embodiment.
Fig. 8 is the cutaway view that column packing ring is inserted through the state on steering handle pillar connecting portion.
Fig. 9 is the cutaway view that column packing ring is inserted through the state on threaded portion.
Figure 10 is for representing the existing figure that turns to the connection structure of column.
The specific embodiment
Below, two-wheeled with reference to the accompanying drawings of embodiments of the present invention.And, in the following description, the direction of upper and lower, all around, the direction of watching for the driver from vehicle.
The 1st embodiment
Fig. 1 is for representing to be suitable for the left side view of two-wheeled vehicle frame of the connection structure that turns to column of the Straddle riding type vehicle of the present invention's the 1st embodiment.
Two-wheeled 1 for arranging Straddle riding type two-wheeled of vehicle body between front-wheel (not shown) and trailing wheel (not shown), and above-mentioned vehicle body has vehicle frame 10.Vehicle frame 10 have establish fore head tube 11, the main truss 12 backward just extending towards the back lower place from head tube 11, the intermediate frame 13 extending downwards from the rear portion of main truss 12 and from the rear portion of main truss 12, towards back upper place, just extend backward framework 14.
At head tube 11 head lamp brush guard pivots, support and turn to column 30, turning to the lower end of column 30 by the upwardly extending bridging part 15 supporting pair of right and left breeches pipes 16 in overall width side.Above-mentioned front-wheel is the lower end at breeches pipe 16 by pivotal support.Turning to the top of column 30 to connect steering handle pillar 17, the steering tiller 18 of driver's operation is connected with steering handle pillar 17, by means of the operation of steering tiller 18, turns to column 30 to rotate, and front-wheel is diverted.
On intermediate frame 13, the swing arm that connection can swing up and down (not shown), above-mentioned trailing wheel is the rear end in this swing arm by pivotal support.
Fig. 2 is for watching the figure nearby of head tube 11 from vehicle front side.
Bridging part 15 have be combined in the lower end that turns to column 30 column connecting portion 21 and from column connecting portion 21 to the left and right branch and in overall width side upwardly extending fork connecting portion 22,22.Turn to column 30 in the chimeric lower end of column connecting portion 21 and welded, thus integrated with bridging part 15.Each breeches pipe 16,16 (Fig. 1) is inserted through in fork connecting portion 22, by means of split clamping bearing, is fixed.Turn to column 30, bridging part 15 and breeches pipe 16,16 to form the fork member 26 that above-mentioned front-wheel is supported.
Fig. 3 is the amplification view that expression turns to the connection structure of column 30.
As shown in Figures 2 and 3, the connection structure that turns to column 30 is by turning to column 30, head tube 11, bridging part 15, up and down to turning to column 30 to carry out the upper side bearing 41 of pivotal support and lower side bearing 42, turn to the upper nut 45 (screw top part) of column 30, be fitted to turn to the column packing ring 50 of column 30 and be connected to above column packing ring 50 turn to the jam nut 51 of column 30 to form by not revolvable mode being connected to above upper side bearing 41.
Turn to column 30 for by the hollow axle forming from lower end to upper end with attenuating, there is slotting lower end connecting portion 31, the diameter extension 32, the diameter that are housed in head tube 11 in less than lower end connecting portion 31 leading in column connecting portion 21 and than the little bearing connecting portion 33 being connected with upper side bearing 41 of extension 32 and diameter, than little the extending to of bearing connecting portion 33, turn to the steering handle pillar connecting portion 34 (turning to the top of column) of the upper end of column 30.On the top of steering handle pillar connecting portion 34, connect steering handle pillar 17 (Fig. 1).
Bearing connecting portion 33 have the chimeric fitting portion 33A of upper side bearing 41 and in succession fitting portion 33A be formed on top threaded portion 33B.Threaded portion 33B carries out screw thread processing by the outer peripheral face with fitting portion 33A same diameter and forms, and at threaded portion 33B, connects upper nut 45 and jam nut 51.
On the outer peripheral face of the bottom of threaded portion 33B and steering handle pillar connecting portion 34, form along the slot part 35 that turns to the column Axis Extension of column 30.Slot part 35 utilizes machine up to cut and form.
Column packing ring 50 forms ring-type, is arranged between upper nut 45 and jam nut 51.Column packing ring 50 has from perimembranous in it to the outstanding engaging teat 56 of radially inner side (with reference to Fig. 3 and Fig. 4), and engaging teat 56 is fastened in the slot part 35 that turns to column 30, and like this, 50 engagings of column packing ring are turning on column 30, become and can not rotate.That is, column packing ring 50 is with respect to turning to column 30 not rotate, even if tighten jam nut 51, column packing ring 50 does not rotate yet, and for this reason, prevents that the upper nut 45 below that is connected to column packing ring 50 is with jam nut 51 rotations.In addition, below upper nut 45, be provided with cover bearing resettlement section 24 above the dust boot 47 of ring-type.
Upper side bearing 41 and lower side bearing 42 are ball bearing of main shaft, there is outer ring 41A, 42A in head tube of being pressed into 11, turn to column 30 chimeric inner ring 41B, 42B and be located at outer ring 41A, 42A and inner ring 41B, 42B between ball 41C, 42C.
Head tube 11 forms the circular tube shaped along upper downward-extension, in upper end and lower end arrange the external diameter of head tube 11 and internal diameter hole enlargement and the bearing resettlement section 24,25 forming.The bearing resettlement section 24 of upside has the bulged-in interior facial 24A of outer ring 41A of upper side bearing 41 and the bottom 24B of supporting outer ring 41A in the axial direction.The bearing resettlement section 25 of downside has the bulged-in interior facial 25A of outer ring 42A of lower side bearing 42 and the bottom 25B of supporting outer ring 42A in the axial direction.
The column connecting portion 21 of bridging part 15 has planar portions 21A at the more past radially inner side of interior facial 25A than bearing resettlement section 25, planar portions 21A be connected to inner ring 42B below.
The state that upper side bearing 41 has been given prominence to from the upper end of head tube 11 by the top of inner ring 41B is housed in bearing resettlement section 24, and under this state, upper nut 45 is connected to the threaded portion 33B that turns to column 30, to pushing above of inner ring 41B.In addition, above upper nut 45, connect jam nut 51, between upper nut 45 and jam nut 51, column packing ring 50 is installed.
In detail, by means of the connection power of upper nut 45, at the upside of head tube 11, inner ring 41B is pressed to outer ring 41A thruster, and at downside, column connecting portion 21 is drawn toward tops, by the planar portions 21A of bridging part 15, to outer ring 42A thruster, presses inner ring 42B.That is, turn to column 30 by upper nut 45 and bridging part 15 from sandwiching up and down side bearing 41 and lower side bearing 42, thereby rotate freely pivotal support in head tube 11.
In addition, tighten upper nut 45, on upper side bearing 41 and lower side bearing 42, produce inner ring 41B, 42B to the pressure of outer ring 41A, 42A thruster nip drum pearl 41C, 42C,, this pressure is called to precompressed here.This precompressed changes with the fastening torque of upper nut 45, and the action of upper side bearing 41 and lower side bearing 42 is exerted an influence, and for this reason, upper nut 45 need to connect with suitable fastening torque.
In this 1st embodiment, by column packing ring 50 is set, while preventing from connecting jam nut 51, cause upper nut 45 to be rotated together, the fastening torque of the upper nut 45 of once suitably having tightened can not be subject to the connection of jam nut 51 to affect and change, for this reason, can make the action of side bearing 41 and lower side bearing 42 good.
Fig. 4 is the birds-eye view of column packing ring 50.
Column packing ring 50, for forming the sheet material of circular ring-type, has the washer body 52 of ring-type, and washer body 52 has roughly just round outer diameter part 52A, inside diameter 52B, engaging teat 56.Inside diameter 52B has the curved face part 63 that the most just round portion 62 that accounts for inside diameter 52B and radius of curvature are different from just round portion 62.
The teat of engaging teat 56 essentially rectangular when overlooking, outstanding to the center O of outer diameter part 52A from the just round portion 62 of inside diameter 52B.The extended line L of line of centers that has extended the Width of engaging teat 56 passes through center O.In addition, the sidepiece at the base end part of engaging teat 56 forms to the recessed curved bight 57 of outer diameter part 52A side.
In Fig. 4, with a long and short dash line, represent the basic circle P of the just round portion 62 of inside diameter 52B, with long and two-short dash line, represent the basic circle Q of curved face part 63.Basic circle P and basic circle Q are for just round.
The basic circle P of outer diameter part 52A and just round portion 62 is in coaxial position relationship, and the center O of outer diameter part 52A and basic circle P is consistent.Inside diameter 52B, for inserting the logical part that turns to the threaded portion 33B of column 30, makes it possible to insert logical threaded portion 33B the diameter M (Fig. 4) of basic circle P (just round portion 62) is roughly the same with the diameter J (Fig. 5) of the outer diameter part 36 of threaded portion 33B.
The diameter K (Fig. 4) of the basic circle Q of curved face part 63 makes the steering handle pillar connecting portion 34 can be by being formed slightly largerly than the diameter I (Fig. 5) of the outer diameter part 37 of steering handle pillar connecting portion 34 in basic circle Q.In addition, the diameter K of basic circle Q is less than the diameter M of basic circle P.
Basic circle Q, is configured in that to make the center O 1 of basic circle Q be in extended line L upper, and the central portion front end 56A of engaging teat 56 and the circumscribed position of basic circle Q.As configuration baseline circle Q, in inside diameter 52B with engaging teat 56 part in opposite directions, a part of basic circle Q is more in outer diameter part 52A side than basic circle P, and, at 2 intersection point X, X, intersect.In this 1st embodiment, than intersection point X, X more the part of the basic circle Q in outside become curved face part 63.That is, inside diameter 52B than intersection point X, X more the part in engaging teat 56 sides by basic circle P corresponding to the diameter J with threaded portion 33B, formed, remaining part consists of basic circle Q corresponding to the diameter I with steering handle pillar connecting portion 34.
In addition, in other words, take diameter K that from the central portion front end 56A of the engaging teat 56 of column packing ring 50 center O by column packing ring 50 arrives the basic circle Q that the size of line segment L1 of the inner edge of column packing ring 50 is diameter is set greatlyr than turning to the diameter I of steering handle pillar connecting portion 34 of column 30.The center O 1 of basic circle Q with respect to the center O of outer diameter part 52A toward with the 56 opposition sides biasings of engaging teat configure.
Fig. 5 is the cutaway view that column packing ring 50 is inserted through the state on steering handle pillar connecting portion 34.
Column packing ring 50 is being arranged on while turning to column 30, inserts logically from steering handle pillar connecting portion 34 sides, moves downwards, and in the stage in the way of installing, as shown in Figure 5, the curved face part 63 of inside diameter 52B moves along steering handle pillar connecting portion 34 ground.
As shown in Figure 5, the outer diameter part 36 of the bearing connecting portion 33 that comprises threaded portion 33B with the outer diameter part 37 of steering handle pillar connecting portion 34 by coaxial position relationship setting, between outer diameter part 36 and outer diameter part 37 along all-round formation step discrepancy in elevation G.In addition, take the depth D of the slot part 35 that the outer diameter part 36 of bearing connecting portion 33 is benchmark is formed greatlyr than the size of step discrepancy in elevation G.That is, slot part 35 also forms on the outer diameter part 37 of steering handle pillar connecting portion 34, and the bottom of slot part 35 is positioned at than outer diameter part 37 more by radially inner side.
The overhang H radially of the engaging teat 56 of the occasion that the basic circle P of take is benchmark is formed greatlyr than turning to the step discrepancy in elevation G of column 30, and the outer diameter part 37 of the comparable steering handle pillar of engaging teat 56 connecting portion 34 more enters into the radially inner side of slot part 35.
Fig. 6 is the cutaway view that column packing ring 50 is inserted through the state on the 33B of threaded portion.
As shown in Figure 6, at column packing ring 50, be placed under the state above upper nut 45 (Fig. 3), the just round portion 62 of inside diameter 52B is entrenched in and turns to the threaded portion 33B of column 30 upper, and the center O of column packing ring 50 and 33B center, threaded portion are unanimous on the whole.Under this state, between curved face part 63 and the outer diameter part 36 of threaded portion 33B, vacate gap, but threaded portion 33B is connected to than the just round portion 62 of the more past intersection point X of center O, X side and guided, be positioned in position.For this reason, the engaging teat 56 being fastened in slot part 35 can not deviate from from slot part 35, can positively prevent from rotating.In addition, engaging teat 56, than turning to the step discrepancy in elevation G of column 30 to be deeper fastened in slot part 35,, can turn to 50 engagings of column packing ring on column 30 securely for this reason, positively prevents from rotating.
Below, illustrate and turn to the erection procedure of column 30 in head tube 11.
First, as shown in Figure 2, lower side bearing 42 is set in head tube 11, and turns to column 30 to insert to lead in head tube 11 by what arrange integratedly with bridging part 15 from the below of head tube 11, upper side bearing 41 is located in head tube 11, is turning to interim fastening upper nut 45 on the threaded portion 33B of column 30.On upper side bearing 41 and lower side bearing 42, apply grease.
Then, Yi Bian support bridging part 15, Yi Bian after this fastening upper nut 45 of the torque of as prescribed, makes to turn to column 30 rotated several times, side bearing 41 and lower side bearing 42 are adapted to.Then, until fastening torque becomes 0 ground, once unclamping upper nut 45, after this, the torque of as prescribed connects upper nut 45.
Then, engaging teat 56 is embedded in slot part 35 and lays column packing ring 50, be positioned in upper nut 45, after this, jam nut 51 is connected to threaded portion 33B upper, complete the installation that turns to column 30.
Describe column packing ring 50 in detail in the installation turning on column 30 here.
Column packing ring 50 leads on steering handle pillar connecting portion 34 from turning to the upper end of column 30 to insert, and inserts logical upper nut 45 sides downwards.As shown in Figure 5, column packing ring 50 by engaging teat 56, be positioned at the slot part 35 that turns to column 30 top towards and also in the curved face part 63 of inside diameter 52B, be connected under the state of outer diameter part 37 of steering handle pillar connecting portion 34 to upper nut 45 side shiftings.Under this state, curved face part 63 and outer diameter part 37 butts, center O is from the off centering of steering handle pillar connecting portion 34, and column packing ring 50 is setovered on the whole, and at the opposition side of curved face part 63, engaging teat 56 leaves from outer diameter part 37.
Like this, even at the overhang H of engaging teat 56 than the larger occasion of step discrepancy in elevation G that turns to column 30, also in the time of can avoiding inserting logical column packing ring 50, engaging teat 56 touches the outer diameter part 37 of steering handle pillar connecting portion 34, for this reason, need on steering handle pillar connecting portion 34, not form slot part 35, can shorten the processing length of slot part 35.In this 1st embodiment, as shown in Figure 3, slot part 35 is formed on above upper side bearing 41 nearby the interval of the top of jam nut 51, only be formed near the top of upper nut 45, for this reason, with as shown in Figure 10 until turn to column 100 upper end form keyway 100A occasion compare, can significantly reduce working position.
In addition, at column packing ring 50, be inserted through under the state on the 33B of threaded portion, column packing ring 50 is connected to than in the just round portion 62 of the more past intersection point X of center O, X side and guided, location in position, for this reason, even if form the formation that is provided with curved face part 63, also can be by column packing ring 50 location in position.
In addition, the top that is only located at upper nut 45 due to slot part 35 nearby, for this reason, the degree of freedom raising of the position of configuration slot part 35.
In addition, because slot part 35 is not turning to the upper end of column 30 to form, for this reason, can make water etc. be difficult to from turning to the upper end edge slot part 35 of column 30 to invade upper nut 45 sides.
As described above, according to being suitable for the 1st embodiment of the present invention, turn to the diameter I of outer diameter part 37 of steering handle pillar connecting portion 34 on the top of column 30 to be set littlely than the diameter J of the outer diameter part 36 of the threaded portion 33B being connected with jam nut 51, the diameter K that from the central portion front end 56A of the engaging teat 56 of column packing ring 50 center O by column packing ring 50 of take arrives the basic circle Q that the line segment L1 of the inside diameter 52B of column packing ring 50 is diameter is set greatlyr than the diameter I of the outer diameter part 37 of steering handle pillar connecting portion 34, the diameter M of the just round portion 62 of the inside diameter 52B of column packing ring 50 be set with turn to the diameter J of threaded portion 33B of column 30 identical, for this reason, when column packing ring 50 being entrenched in while turning on column 30, can arrive the curved face part 63 of the basic circle Q that the line segment L1 of the inside diameter 52B of column packing ring 50 is diameter along take from the central portion front end 56A of engaging teat 56 center O by column packing ring 50, make column packing ring 50 through steering handle pillar connecting portion 34.For this reason, even if slot part 35 is not set on steering handle pillar connecting portion 34, also can make column packing ring 50 through steering handle pillar connecting portion 34, due to the top that turns to the slot part 35 of column 30 to be only located at upper nut 45 nearby, for this reason, slot part 35 can be shortened, working position can be reduced.For this reason, processing becomes easily, and tooling cost also can reduce.
In addition, the overhang H of engaging teat 56 is formed greatlyr than the step discrepancy in elevation G between the outer diameter part 37 of steering handle pillar connecting portion 34 and the outer diameter part 36 of threaded portion 33B, the depth D of slot part 35 is formed deeplyer than the size of step discrepancy in elevation G, for this reason, can make engaging teat 56 be fastened on dearly slot part 35 and positively engaging, and, even for thering is the column packing ring 50 of the engaging teat 56 longer than step discrepancy in elevation G, also can be by avoiding engaging teat 56 to touch the outer diameter part 37 of steering handle pillar connecting portion 34 along take the curved face part 63 that from the central portion front end 56A of engaging teat 56 center O by column packing ring 50 arrives the basic circle Q that the line segment L1 of the inside diameter 52B of column packing ring 50 is diameter.Like this, need to not form slot part 35 at the axial integral of steering handle pillar connecting portion 34, for this reason, can shorten the working position of slot part 35.
The 2nd embodiment
Below, with reference to Fig. 7～Fig. 9, illustrate and be suitable for the 2nd embodiment of the present invention.In the 2nd embodiment, to the part mark same reference numerals similarly forming with above-mentioned the 1st embodiment, description thereof is omitted.
In above-mentioned the 1st embodiment, the occasion that the engaging teat 56 of column packing ring 50 is fastened in slot part 35 is illustrated, but in the 2nd embodiment, it is different with above-mentioned the 1st embodiment that the engaging of column packing ring 250 face 256 and the chamfered section 235 that turns to column 30 engage this point.
Fig. 7 is the birds-eye view of the column packing ring 250 of the 2nd embodiment.
Column packing ring 250, for forming the sheet material of circular ring-type, has washer body 52.Washer body 52 has outer diameter part 52A and inside diameter 252B, and inside diameter 252B has just round portion 62, curved face part 63 and when overlooking, is formed on the engaging face 256 on straight line.
In Fig. 7, with a long and short dash line, represent the basic circle P of the just round portion 62 of inside diameter 252B, with long and two-short dash line, represent the basic circle Q of curved face part 63.Basic circle P and basic circle Q are for just round.
Engaging face 256 is for carrying out to a part for the periphery of basic circle P the planar portions that chamfering forms by linearity.Extended with the central portion longitudinally of engaging face 256 and hung down rectilinear extended line L2 by the center O of outer diameter part 52A.
Basic circle Q is configured in such position, and in this position, it is upper that the center O 1 of basic circle Q is positioned at extended line L2, and the central portion front end 256A of engaging face 256 and basic circle Q circumscribed.As configuration baseline circle Q, inside diameter 252B with engaging face 256 position in opposite directions, a part of basic circle Q is positioned at than basic circle P more by outer diameter part 52A side, and intersects at 2 intersection point X, X.In this 2nd embodiment, than intersection point X, X more the part of the basic circle Q in outside become curved face part 63.; being positioned at than intersection point X, X of inside diameter 252B more consists of basic circle P corresponding to the diameter J with threaded portion 33B by the part of engaging face 256 sides, and remaining part consists of basic circle Q corresponding to the diameter I with steering handle pillar connecting portion 34 and engaging face 256.
In addition, in other words, take diameter K that from the central portion front end 256A of the engaging face 256 of column packing ring 250 center O by column packing ring 250 arrives the basic circle Q that the size of line segment L3 of the inner edge of column packing ring 250 is diameter is set greatlyr than turning to the diameter I of steering handle pillar connecting portion 34 of column 30.
Fig. 8 is that column packing ring 250 is inserted the cutaway view that leads to the state on steering handle pillar connecting portion 34.
As shown in Figure 8, in the bottom of threaded portion 33B and steering handle pillar connecting portion 34, the plane chamfered section 235 of by machine up, chamfering being carried out in the bottom of outer diameter part 36 and outer diameter part 37 and having formed is set.Chamfered section 235 forms the shape corresponding with the engaging face 256 of column packing ring 250, and by 256 engagings of engaging face, in chamfered section 235, column packing ring 250 is by spline.
The radial depth D2 of the chamfered section 235 that the outer diameter part 36 of bearing connecting portion 33 of take is benchmark is formed greatlyr than the size of step discrepancy in elevation G.That is the bottom that, chamfered section 235 also forms chamfered section 235 at the outer diameter part 37 of steering handle pillar connecting portion 34 is positioned at than outer diameter part 37 more by radially inner side.
The radially overhang H2 of the engaging face 256 of the occasion that the basic circle P of take is benchmark is formed greatlyr than step discrepancy in elevation G, engaging face 256 can than the outer diameter part 37 more past radially inner sides of steering handle pillar connecting portion 34 enter into chamfered section 235.
Fig. 9 is that column packing ring 250 is inserted the cutaway view that leads to the state on the 33B of threaded portion.
As shown in Figure 9, at column packing ring 250, be placed under the state above upper nut 45 (Fig. 3), between curved face part 63 and the outer diameter part 36 of threaded portion 33B, vacate gap, but threaded portion 33B is connected to than the just round portion 62 of the more past intersection point X of center O, X side and is guided, and is positioned in position.For this reason, the engaging face 256 that has been fastened on chamfered section 235 can not thrown off from chamfered section 235, can positively prevent from rotating.In addition, engaging face 256, than turning to the step discrepancy in elevation G of column 30 to be deeper fastened in chamfered section 235,, can turn to 250 engagings of column packing ring on column 30 securely for this reason, positively prevents from rotating.
According to being suitable for the 2nd embodiment of the present invention, turn to the diameter I of outer diameter part 37 of steering handle pillar connecting portion 34 on the top of column 30 to be set littlely than the diameter J of the outer diameter part 36 of the threaded portion 33B being connected with jam nut 51, the diameter K that from the central portion front end 256A of the engaging face 256 of column packing ring 250 center O by column packing ring 250 of take arrives the basic circle Q that the line segment L3 of the inside diameter 252B of column packing ring 250 is diameter is set greatlyr than the diameter I of the outer diameter part 37 of steering handle pillar connecting portion 34, the diameter M of the just round portion 62 of the inside diameter 252B of column packing ring 250 be set with turn to the diameter J of threaded portion 33B of column 30 identical, for this reason, when column packing ring 250 being entrenched in while turning on column 30, can be along take the curved face part 63 of the basic circle Q that line segment L3 is diameter, make column packing ring 250 through steering handle pillar connecting portion 34.For this reason, even if chamfered section 235 is not set on steering handle pillar connecting portion 34, also can make column packing ring 250 through steering handle pillar connecting portion 34, due to the top that turns to the chamfered section 235 of column 30 to be only located at upper nut 45 nearby, for this reason, chamfered section 235 can be shortened, working position can be reduced.For this reason, processing becomes easily, and tooling cost also can reduce.
In addition, the overhang H2 of engaging face 256 is formed greatlyr than the step discrepancy in elevation G between the outer diameter part 37 of steering handle pillar connecting portion 34 and the outer diameter part 36 of threaded portion 33B, the depth D 2 of chamfered section 235 is formed deeplyer than the size of step discrepancy in elevation G, for this reason, can make engaging face 256 be fastened on dearly chamfered section 235 and positively engaging, and, even for thering is the column packing ring 250 of the engaging face 256 longer than step discrepancy in elevation G, also can be by arriving the curved face part 63 of the basic circle Q that the line segment L3 of the inside diameter 252B of column packing ring 250 is diameter along take from the central portion front end 256A of engaging face 256 center O by column packing ring 250, avoid engaging face 256 to touch the outer diameter part 37 of steering handle pillar connecting portion 34.Like this, need to not form chamfered section 235 at the axial integral of steering handle pillar connecting portion 34, for this reason, can shorten the working position of chamfered section 235.
Description of reference numerals
1 two-wheeled (Straddle riding type vehicle)
10 vehicle frames
11 head tubes
15 bridging parts
16 breeches pipes
26 fork members
30 turn to column
33A fitting portion
33B threaded portion
34 steering handle pillar connecting portions (turning to column top)
35 slot parts
Side bearing on 41 (being located at the bearing on top)
41B inner ring (being located at the inner ring of the bearing on top)
42 times side bearings (being located at the bearing of bottom)
42B inner ring (being located at the inner ring of the bearing of bottom)
45 upper nut (screw top part)
50,250 column packing rings
51 jam nuts
56 engaging teats
56A, 256A central portion front end
235 chamfered section
256 engaging faces
D, the D2 degree of depth
The G step discrepancy in elevation
H overhang
I diameter (turning to the external diameter on column top)
J diameter (external diameter of threaded portion)
K diameter (circle diameter that the line segment of the inner edge that arrives column packing ring of take is diameter)
L1, L3 line segment (arriving the line segment of the inner edge of column packing ring)
M diameter (internal diameter of column packing ring)
O center (center of column packing ring)
Q basic circle (circle that the line segment of the inner edge that arrives column packing ring of take is diameter)
Claims (1)
1. the connection structure that turns to column of a Straddle riding type vehicle, this Straddle riding type vehicle has head tube (11) and fork member (26), this head tube (11) is located at the front portion of vehicle frame (10), this fork member (26) has the breeches pipe (16) in the left and right of bottom pivotal support front-wheel, the bridging part (15) that connects the breeches pipe (16) of this left and right, and be located at the centre of this bridging part (15) and towards top, extend by pivotal support, in described head tube (11), turned to column (30), described turning to, on column (30), be provided with slot part (35) or the chamfered section (235) along column axis, the described bottom pivotal support that turns to column (30) is in the inner ring (42B) of bearing (42) that is arranged on the bottom of described head tube (11), at the described top setting-in that turns to column (30) be located at the inner ring (41B) of bearing (41) on the top of described head tube (11), at the described upper screw top part (45) that applies precompressed to being located at the described inner ring (41B) of described bearing (41) on the top of described head tube (11) that connects of column (30) that turns to, at the top of this screw top part (45) configuration column packing ring (50, 250), described column packing ring (50, 250) have and the described described slot part (35) of column (30) or the engaging teat (56) of described chamfered section (235) engaging or the engaging face (256) of turning to, jam nut (51) is from this column packing ring (50, 250) top with described in turn to column (30) to be connected, it is characterized in that:
The external diameter that turns to column top (34) (I) than the top side in threaded portion (33B) who is connected with described jam nut (51) is set littlely than the external diameter of this threaded portion (33B) (J), and
Using the line segment (L1, L3) of inner edge that from the central portion front end (56A, 256A) of the described engaging teat (56) of described column packing ring (50,250) or described engaging face (256) center (O) by described column packing ring (50,250) arrives this column packing ring (50,250) as this diameter (K) of the circle (Q) of diameter, be set to such an extent that than described in turn to the external diameter (I) of column top (34) larger
The internal diameter (M) of described column packing ring (50,250) is set identically with the external diameter (J) of the described threaded portion (33B) that turns to column (30), and, described in being only arranged on, the described described slot part (35) that turns to column (30) or described chamfered section (235) turn near the top of described screw top part (45) of column (30)
The overhang (H) of described engaging teat (56) or described engaging face (256) is formed to such an extent that than described in turn to the step discrepancy in elevation (G) between the external diameter (I) of column top (34) and the external diameter (J) of described threaded portion (33B) larger, and the degree of depth (D, D2) of described slot part (35) or described chamfered section (235) is formed deeplyer than the size of the described step discrepancy in elevation (G).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011028850A JP5593251B2 (en) | 2011-02-14 | 2011-02-14 | Fastening structure for steering stem of saddle riding type vehicle |
| JP2011-028850 | 2011-02-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102632957A CN102632957A (en) | 2012-08-15 |
| CN102632957B true CN102632957B (en) | 2014-07-16 |
Family
ID=46617574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210018329.1A Active CN102632957B (en) | 2011-02-14 | 2012-01-20 | Connection structure for steering columns of straddle type vehicle |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5593251B2 (en) |
| CN (1) | CN102632957B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6531997B2 (en) * | 2015-09-30 | 2019-06-19 | 本田技研工業株式会社 | Shaft bearing structure |
| DE102017207012A1 (en) | 2017-02-27 | 2018-08-30 | Thyssenkrupp Ag | Bearing for a steering shaft and steering column for a motor vehicle |
| CN109457764B (en) * | 2018-11-21 | 2023-11-03 | 开平摩鼎卫浴科技有限公司 | Lifting shower seat sliding sleeve |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3306684A (en) * | 1964-07-06 | 1967-02-28 | Jr Frank F Klein | Bearing construction for bicycles and the like |
| US4593924A (en) * | 1983-07-15 | 1986-06-10 | Cabeza Maximino R | Headset for bicycles |
| JPH02125205U (en) * | 1989-03-28 | 1990-10-16 | ||
| JPH05170163A (en) * | 1991-12-05 | 1993-07-09 | Honda Motor Co Ltd | Steering structure for motorcycle |
| US5251995A (en) * | 1992-11-12 | 1993-10-12 | Chi Yi C | Coupling of a head set |
| JPH10324108A (en) * | 1997-05-22 | 1998-12-08 | Nissan Motor Co Ltd | Bearing locknut and washer structure |
| CN2789121Y (en) * | 2005-03-24 | 2006-06-21 | 超腾贸易有限公司 | Bicycle head tube |
| JP2009179284A (en) * | 2008-01-31 | 2009-08-13 | Honda Motor Co Ltd | Frame structure of motorcycle |
-
2011
- 2011-02-14 JP JP2011028850A patent/JP5593251B2/en active Active
-
2012
- 2012-01-20 CN CN201210018329.1A patent/CN102632957B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN102632957A (en) | 2012-08-15 |
| JP5593251B2 (en) | 2014-09-17 |
| JP2012166677A (en) | 2012-09-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102632957B (en) | Connection structure for steering columns of straddle type vehicle | |
| EP3081468B1 (en) | Omni-wheel, frictional propulsion device and omni-directional vehicle | |
| EP3153388A1 (en) | Straddle-type vehicle | |
| KR101568293B1 (en) | The automatical assembly apparatus | |
| JP6122741B2 (en) | Fastening structure of fiber reinforced resin frame | |
| US10598680B2 (en) | Pulser ring mounting structure | |
| CN103008945B (en) | Steel pipe and flange welding and positioning tool | |
| US20180086409A1 (en) | An internal steering structure of a front wheel hub of a portable two-wheeled vehicle | |
| JPWO2017056234A1 (en) | Shaft bearing structure | |
| EP2684773A2 (en) | Steering system | |
| CN206123505U (en) | A anchor clamps for centre gripping gearbox gear shaft | |
| CN203047606U (en) | Packing machine for bendable straws | |
| EP3476625B1 (en) | Holding structure for tire air pressure detecting device | |
| CN210819079U (en) | Spindle device and centerless grinding machine | |
| US9738117B1 (en) | Double-step offset axle | |
| US20230074447A1 (en) | Bicycle headset assembly with multi-material compression ring | |
| CN103057769A (en) | Bendable drinking straw packing machine | |
| KR100652160B1 (en) | Processing device for guide hole of guide cylinder for Modeling of boss | |
| CN100571980C (en) | Grinder | |
| US9415829B2 (en) | Rear wheel suspension structure of motorcycle | |
| CN211964370U (en) | Cutting roller with replaceable rotating shaft for garden branch cutting and crushing machine | |
| CN210941950U (en) | Steering wheel shaft | |
| CN107310675A (en) | A kind of kart steering column structure of adjustable angle | |
| CN207060766U (en) | The axle assembly transportation clip of automobile steering system | |
| CN202292312U (en) | Clamping assembly for bevel wheel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |