CN102632957A - Connection structure for steering columns of straddle type vehicle - Google Patents
Connection structure for steering columns of straddle type vehicle Download PDFInfo
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- CN102632957A CN102632957A CN2012100183291A CN201210018329A CN102632957A CN 102632957 A CN102632957 A CN 102632957A CN 2012100183291 A CN2012100183291 A CN 2012100183291A CN 201210018329 A CN201210018329 A CN 201210018329A CN 102632957 A CN102632957 A CN 102632957A
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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 is provided with bearing up and down the head pipe, turns to column with this bearing pivotal support.
In addition, as similarly turning to the connection structure of column with patent documentation 1, such connection structure shown in known Figure 10 (a).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 pipe 101; The top that turns to column 100 by pivotal support in the inner ring 103A of the upper bearing 103 of head pipe 101; Screw top part 104 receives fastening by the top from this inner ring 103A to the mode that inner ring 103A applies precompressed; Configuration column packing ring 105 above screw top part 104 is connected jam nut 106 from the top of this column packing ring 105 and turns on the column 100, turns to column 100 thereby in head pipe 101, be provided with.
Here, column packing ring 105 is for when tightening jam nut 106, preventing the parts of screw top part 104 in rotation under the rubbing effect of jam nut 106, shown in Figure 10 (b), has the fastening teat 105A that perimembranous is extended to radially inner side in it.Specifically, turning on the column 100 the keyway 100A that extends through in the machine up setting along the vertical direction, the fastening teat 105A of engaging column packing ring 105 in this keyway 100A, thus 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 the screw top part 104 that is in its below 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 design, the keyway 100A that turns to column 100 from the upper end that turns to column 100 be formed into screw top part 104 near, with respect to the needed length of the spline of column packing ring 105, the length of keyway 100A is bigger.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 purpose is, in the connection structure that turns to column of Straddle riding type vehicle, reduces the working position that turns to column, makes handling ease.
In order to achieve the above object; The present invention provides a kind of connection structure that turns to column of Straddle riding type vehicle; This Straddle riding type vehicle has head pipe 11 and fork member 26; This pipe 11 is located at the front portion of vehicle frame 10; This fork member 26 have the breeches pipe 16 about the pivotal support front-wheel of bottom, connect the bridging part 15 of the breeches pipe 16 about this and be located at this bridging part 15 the centre and towards above extend in above-mentioned head pipe 11, turned to column 30 by pivotal support; In above-mentioned slot part 35 or the chamfered section 235 that is provided with on the column 30 along the column axis that turn to; The above-mentioned bottom pivotal support that turns to column 30 is in the inner ring 42B of the bearing 42 of the bottom that is set at above-mentioned head pipe 11; Be located at the inner ring 41B of bearing 41 on the top of above-mentioned head pipe 11 at the above-mentioned top setting-in that turns to column 30; Connect the screw top part 45 that the above-mentioned inner ring 41B of the above-mentioned bearing 41 on the top that is located at above-mentioned head pipe 11 is applied precompressed above-mentioned turn on the column 30; Configuration column packing ring 50,250 above this screw top part 45; This column packing ring 50,250 has and the above-mentioned above-mentioned slot part 35 of column 30 or the fastening teat 56 or the fastening face 256 of above-mentioned chamfered section 235 fastenings of turning to; Jam nut 51 is connected with the above-mentioned column 30 that turns to from the top of this column packing ring 50,250; It is characterized in that: than leaning on the external diameter I that turns to column top 34 of top to be set forr a short time than the external diameter J of this threaded portion 33B with above-mentioned jam nut 51 bonded assembly threaded portion 33B, and be set greatlyyer than the above-mentioned external diameter I on column top 34 that turns to this diameter K from line segment L1 through the inner edge of this column packing ring 50,250 of center O arrival of above-mentioned column packing ring 50,250 of the central portion front end 56A of the above-mentioned fastening teat 56 of above-mentioned column packing ring 50,250 or above-mentioned fastening facial 256,256A, round Q that L3 is diameter, the internal diameter M of above-mentioned column packing ring 50,250 is set identically with the external diameter J of the above-mentioned threaded portion 33B that turns to column 30; And above-mentioned above-mentioned slot part 35 that turns to column 30 or above-mentioned chamfered section 235 only are 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 than littler with the external diameter of jam nut bonded assembly threaded portion; With the line segment that arrives the inner edge of column packing ring from the center of the facial central portion front end of the fastening teat of column packing ring or fastening through the column packing ring is that this diameter of the circle of diameter is set greatlyyer than the external diameter that turns to column top; The internal diameter of column packing ring is set identically with the external diameter of the threaded portion that turns to column; For this reason; When the column packing ring being entrenched in when turning on the column, can the column packing ring be passed turn to column top along being this diameter of the circle of diameter with the line segment that arrives the inner edge of column packing ring from the center of the facial central portion front end of the fastening teat of column packing ring or fastening through the column packing ring.For this reason; The column packing ring is passed turn to column turning to column top that slot part or chamfered section are set, only above the screw top part that turns to column, nearby slot part is set or chamfered section gets final product, 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 above-mentioned formation; The overhang H of above-mentioned fastening teat 56 or above-mentioned fastening facial 256 is formed greatlyyer than the step discrepancy in elevation G between the external diameter J of above-mentioned external diameter I that turns to column top 34 and above-mentioned threaded portion 33B, 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 facial overhang of fastening teat or fastening is formed greatlyyer than the step discrepancy in elevation between the external diameter of external diameter that turns to column top and 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 fastening teat or fastening face be fastened on slot part or chamfered section dearly and fastening positively, and, even for having fastening teat or the fastening facial column packing ring longer than the above-mentioned step discrepancy in elevation; Also can be along being the circle diameter of diameter with the line segment that arrives the inner edge of column packing ring from the center of the facial central portion front end of the fastening teat of column packing ring or fastening through the column packing ring, thus the fastening teat avoided or fastening is facial contacts with turning to column top.Like this, need 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 the column packing ring being entrenched in when turning on the column; Can the column packing ring be passed turn to column top along being the circle diameter of diameter with the line segment that arrives the inner edge of column packing ring from the center of the facial central portion front end of the fastening teat of column packing ring or fastening through the column packing ring.For this reason; Even the column packing ring is passed turn to column turning to column top that slot part or chamfered section are set, as long as only above the screw top part that turns to column, 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 fastening teat or fastening face be fastened on slot part or chamfered section dearly and fastening positively; And; Even for having than the longer fastening teat of the step discrepancy in elevation between the external diameter of the above-mentioned external diameter that turns to column top and threaded portion or the column packing ring of fastening face; When the column packing ring being entrenched in when turning on the column, also can the column packing ring be passed turn to column top along being the circle diameter of diameter with the line segment that arrives the inner edge of column packing ring from the center of the facial central portion front end of the fastening teat of column packing ring or fastening through the column packing ring; For this reason, even the column packing ring is passed turn to column turning to column top that slot part or chamfered section are set.For this reason,, can make slot part or chamfered section short as long as only above the screw top part that turns to column, nearby slot part or chamfered section are set, so, can make working position few.As a result, processing becomes easily, and tooling cost also reduces.
Description of drawings
Fig. 1 has been 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 for expression.
Fig. 2 is for watching the figure nearby of head pipe from vehicle front side.
Fig. 3 turns to the amplification view of the connection structure of column for expression.
Fig. 4 is the birds-eye view of column packing ring.
Fig. 5 is inserted the cutaway view that leads to the state on steering handle pillar connecting portion for the column packing ring.
Fig. 6 is inserted the cutaway view that leads to the state on the threaded portion for the column packing ring.
Fig. 7 is the birds-eye view of the column packing ring of the 2nd embodiment.
Fig. 8 is inserted the cutaway view that leads to the state on steering handle pillar connecting portion for the column packing ring.
Fig. 9 is inserted the cutaway view that leads to the state on the threaded portion for the column packing ring.
Figure 10 is the existing figure that turns to the connection structure of column of expression.
The specific embodiment
Below, two-wheeled with reference to description of drawings embodiment of the present invention.And, in following explanation, up and down, the direction of all around, the direction of watching for driver from vehicle.
The 1st embodiment
Fig. 1 has been 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 for expression.
Two-wheeled 1 for being provided with Straddle riding type two-wheeled of vehicle body between front-wheel (not shown) and trailing wheel (not shown), above-mentioned vehicle body has vehicle frame 10.Vehicle frame 10 has and is located at anterior head pipe 11, from the beginning manages 11 main truss 12, the intermediate frames 13 that extend from the rear portion of main truss 12 that backward just extend towards the back lower place and the back framework 14 that backward just extends towards the back upper place from the rear portion of main truss 12 downwards.
Manage the support of 11 head lamp brush guard pivots at head and turn to column 30, pass through upwardly extending bridging part 15 supporting pair of right and left breeches pipes 16 in the lower end that turns to column 30 in overall width side.Above-mentioned front-wheel is by the lower end of pivotal support at breeches pipe 16.Connect steering handle pillar 17 on the top that turns to column 30, the steering tiller 18 of driver's operation links to each other with steering handle pillar 17, by means of the operation of steering tiller 18, turns to column 30 to rotate, and front-wheel is turned to.
On intermediate frame 13, the swing arm that connection can swing up and down (not shown), above-mentioned trailing wheel is by the rear end of pivotal support in this swing arm.
Fig. 2 is for watching the figure nearby of head pipe 11 from vehicle front side.
Bridging part 15 have the column connecting portion 21 that is combined in the lower end that turns to column 30 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 column connecting portion 21 chimeric lower ends and welded, thus integrated with bridging part 15.Each breeches pipe 16,16 (Fig. 1) is inserted to be led in fork connecting portion 22, fixes by means of split clamping bearing.Turn to column 30, bridging part 15 and breeches pipe 16,16 to constitute the fork member 26 that above-mentioned front-wheel is supported.
Fig. 3 turns to the amplification view of the connection structure of column 30 for expression.
Like Fig. 2 and shown in Figure 3, the connection structure that turns to column 30 by turn to column 30, head pipe 11, bridging part 15, up and down to turn to column 30 carry out pivotal support on side bearing 41 and down side bearing 42, be connected to the upper nut 45 (screw top part) that turns to column 30 above the last side bearing 41, be fitted to the column packing ring 50 that turns to column 30 and above column packing ring 50, be connected to jam nut 51 formations that turn to column 30 by the mode that can not rotate.
Turn to column 30 for by the hollow axle that from the lower end to the upper end, constitutes with attenuating, have insert the lower end connecting portion 31 that leads in column connecting portion 21, diameter than lower end connecting portion 31 littler be housed in head manage extension 32 in 11, diameter than extension 32 little turn to the steering handle pillar connecting portion 34 (turning to the top of column) of the upper end of column 30 than 33 little the extending to of bearing connecting portion with last side bearing 41 bonded assembly bearing connecting portions 33 and diameter.On the top of steering handle pillar connecting portion 34, connect steering handle pillar 17 (Fig. 1).
Bearing connecting portion 33 has the threaded portion 33B that the chimeric fitting portion 33A of last side bearing 41 and the fitting portion 33A that ins succession are formed on the top.Threaded portion 33B forms through carry out screw thread processing at the outer peripheral face with fitting portion 33A same diameter, and 33B connects upper nut 45 and jam nut 51 in the threaded portion.
On the outer peripheral face of the bottom of threaded portion 33B and steering handle pillar connecting portion 34, form the slot part 35 that extends along the column axis that turns to column 30.Slot part 35 utilizes machine up to cut and form.
Last side bearing 41 and down side bearing 42 be ball bearing of main shaft, have and be pressed into the outer ring 41A, the 42A that manage to the end in 11, turn to column 30 chimeric inner ring 41B, 42B and be located at ball 41C, the 42C between outer ring 41A, 42A and inner ring 41B, the 42B.
The column connecting portion 21 of bridging part 15 more has planar portions 21A toward radially inner side than the interior facial 25A of bearing resettlement section 25, planar portions 21A be connected to inner ring 42B below.
From the beginning last side bearing 41 is managed the state of 11 upper end having given prominence to by the top of inner ring 41B and is housed in the 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 the inner ring 41B.In addition, above upper nut 45, connect jam nut 51, column packing ring 50 is installed between upper nut 45 and jam nut 51.
Say that at length by means of the connection power of upper nut 45, at the upside of head pipe 11, inner ring 41B is pressed to outer ring 41A thruster, and at downside, column connecting portion 21 is drawn toward the top, pressed inner ring 42B to outer ring 42A thruster by the planar portions 21A of bridging part 15.That is, turn to column 30 by upper nut 45 and bridging part 15 from sandwiching side bearing 41 and time side bearing 42 up and down, thereby rotate freely pivotal support on head pipe 11.
In addition, tighten upper nut 45, at last side bearing 41 and produce inner ring 41B, 42B pressure down on the side bearing 42,, this pressure is called precompressed here to outer ring 41A, 42A thruster nip drum pearl 41C, 42C.This precompressed changes with the fastening torque of upper nut 45, and the action property of side bearing 42 exerted an influence under last side bearing 41 was reached, and for this reason, upper nut 45 need connect with suitable fastening torque.
In this 1st embodiment; Through column packing ring 50 is set; Cause upper nut 45 to be rotated together when preventing to connect jam nut 51; The fastening torque of the upper nut 45 of once suitably having tightened is not influenced by the connection of jam nut 51 can and change, and for this reason, can make side bearing 41 and the action property of side bearing 42 is good down.
Fig. 4 is the birds-eye view of column packing ring 50.
The teat of fastening teat 56 essentially rectangular when overlooking, outstanding from the just round portion 62 of inside diameter 52B to the center O of outer diameter part 52A.The extended line L of line of centers that has prolonged the Width of fastening teat 56 passes through center O.In addition, the sidepiece at the base end part of fastening teat 56 forms to the recessed curved bight 57 of outer diameter part 52A side.
In Fig. 4, represent the basic circle P of the just round portion 62 of inside diameter 52B with a long and short dash line, represent the basic circle Q of curved face part 63 with long and two-short dash line.Basic circle P and basic circle Q are round for just.
The basic circle P of outer diameter part 52A and just round portion 62 is in coaxial position relation, and the center O of outer diameter part 52A and basic circle P is consistent.Inside diameter 52B is for inserting the logical part that turns to the threaded portion 33B of column 30, and it is roughly the same with the diameter J (Fig. 5) of the outer diameter part 36 of threaded portion 33B with the diameter M (Fig. 4) of basic circle P (just round portion 62) to make it possible to insert logical 33B ground, threaded portion.
The diameter K (Fig. 4) of the basic circle Q of curved face part 63 make steering handle pillar connecting portion 34 can through in the basic circle Q be formed greatlyyer slightly than the diameter I (Fig. 5) of the outer diameter part 37 of steering handle pillar connecting portion 34.In addition, the diameter K of basic circle Q is littler than the diameter M of basic circle P.
Basic circle Q is configured in the center O 1 that makes basic circle Q and is on the extended line L, and the central portion front end 56A of fastening teat 56 and the circumscribed position of basic circle Q.As configuration baseline circle Q, then in inside diameter 52B with fastening teat 56 part in opposite directions, the part of basic circle Q more is in outer diameter part 52A side than basic circle P, and, intersect at 2 intersection point X, X.In this 1st embodiment, the part that more is in the basic circle Q in the outside than intersection point X, X becomes curved face part 63.That is, the part that more is in fastening teat 56 sides than intersection point X, X of inside diameter 52B is by constituting with the cooresponding basic circle P of the diameter J of threaded portion 33B, and remaining part is by constituting with the cooresponding basic circle Q of the diameter I of steering handle pillar connecting portion 34.
In addition; In other words, be that the diameter K of the basic circle Q of diameter is set greatlyyer than the diameter I of the steering handle pillar connecting portion 34 that turns to column 30 with the size of the line segment L1 of the inner edge that arrives column packing ring 50 from the central portion front end 56A of the fastening teat 56 of column packing ring 50 center O through column packing ring 50.The center O 1 of basic circle Q disposes with fastening teat 56 opposition sides biasing ground with respect to the center O of outer diameter part 52A is past.
Fig. 5 is inserted the cutaway view that leads to the state on steering handle pillar connecting portion 34 for column packing ring 50.
As shown in Figure 5, the outer diameter part 37 of outer diameter part 36 and steering handle pillar connecting portion 34 that comprises the bearing connecting portion 33 of threaded portion 33B is provided with by coaxial position relation, between outer diameter part 36 and outer diameter part 37 along full week formation step discrepancy in elevation G.In addition, be that the depth D of the slot part 35 of benchmark is formed greatlyyer than the size of step discrepancy in elevation G with the outer diameter part 36 of bearing connecting portion 33.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 leans on radially inner side.
The overhang H radially of fastening teat 56 that with basic circle P is the occasion of benchmark is formed greatlyyer than the step discrepancy in elevation G that turns to column 30, and the outer diameter part 37 of fastening teat 56 comparable steering handle pillar connecting portions 34 more enters into the radially inner side of slot part 35.
Fig. 6 is inserted the cutaway view that leads to the state on the 33B of threaded portion for column packing ring 50.
As shown in Figure 6, be placed under the state above the upper nut 45 (Fig. 3) at column packing ring 50, the just round portion 62 of inside diameter 52B is entrenched on the threaded portion 33B that turns to column 30, and the center of the center O of column packing ring 50 and threaded portion 33B is unanimous on the whole.Under this state, between the outer diameter part 36 of curved face part 63 and threaded portion 33B, vacate the gap, but threaded portion 33B is connected to than center O and more guided toward the just round portion 62 of intersection point X, X side, be positioned in position.For this reason, the fastening teat 56 that is fastened in the slot part 35 can not deviate from from slot part 35, can positively prevent to rotate.In addition, fastening teat 56 deeper is fastened in the slot part 35 than the step discrepancy in elevation G that turns to column 30,, can securely 50 fastenings of column packing ring turned on the column 30 for this reason, positively prevents to rotate.
Below, explain to turn to the erection procedure of column 30 on head pipe 11.
At first; As shown in Figure 2, down side bearing 42 is set on head pipe 11, and from the beginning manages 11 below and will turn to 30 slotting leading in head pipe 11 of column with bridging part 15 is provided with integratedly; To go up side bearing 41 and be located on the head pipe 11, turn to interim fastening upper nut 45 on the threaded portion 33B of column 30., last side bearing 41 applies grease on the side bearing 42 under reaching.
Then, Yi Bian support bridging part 15,, make side bearing 41 and side bearing 42 adaptations down Yi Bian after this fastening upper nut 45 of a/s torque, makes to turn to column 30 rotated several times.Then, become 0 ground up to fastening torque and once unclamping upper nut 45, after this, a/s torque connects upper nut 45.
Then, make fastening teat 56 lay column packing ring 50 with being embedded in the slot part 35,, after this, jam nut 51 is connected on the 33B of threaded portion, accomplish the installation that turns to column 30 putting its year on upper nut 45.
Specify column packing ring 50 in the installation that turns on the column 30 here.
Like this; Even at the overhang H of fastening teat 56 than the bigger occasion of step discrepancy in elevation G that turns to column 30; Fastening teat 56 touches the outer diameter part 37 of steering handle pillar connecting portion 34 in the time of also can avoiding inserting logical column packing ring 50; 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; That kind as shown in Figure 3; Slot part 35 is formed on above last side bearing 41 nearby the interval of the top of jam nut 51, only is formed near the top of upper nut 45, for this reason; The occasion that forms keyway 100A with the ground, upper end up to turning to column 100 of that kind shown in Figure 10 is compared, and can reduce working position significantly.
In addition; Led under the state on the 33B of threaded portion by slotting at column packing ring 50; Column packing ring 50 is connected to than center O more in the just round portion 62 of intersection point X, X side and guided, the location in position, for this reason; Even form the formation that is provided with curved face part 63, also can be in position with column packing ring 50 location.
In addition, nearby get final product because slot part 35 only is located at the top of upper nut 45, for this reason, the degree of freedom of the position of configuration slot part 35 improves.
In addition, because slot part 35 forms in the upper end that is turning to column 30, for this reason, can make water etc. be difficult to invade upper nut 45 sides from the upper end edge slot part 35 that turns to column 30.
That kind 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 than littler with the diameter J of the outer diameter part 36 of jam nut 51 bonded assembly threaded portion 33B; With the line segment L1 that arrives the inside diameter 52B of column packing ring 50 from the central portion front end 56A of the fastening teat 56 of column packing ring 50 center O through column packing ring 50 is that the diameter K of the basic circle Q of diameter is set greatlyyer 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 is set identically with the diameter J of the threaded portion 33B that turns to column 30; For this reason; When being entrenched in, column packing ring 50 turns to 30 last times of column; Can make column packing ring 50 pass steering handle pillar connecting portion 34 along being the curved face part 63 of the basic circle Q of diameter with the line segment L1 that arrives the inside diameter 52B of column packing ring 50 from the central portion front end 56A of fastening teat 56 center O through column packing ring 50.For this reason; Even on steering handle pillar connecting portion 34, slot part 35 is not set; Also can make column packing ring 50 pass steering handle pillar connecting portion 34, the top that only is located at upper nut 45 owing to the slot part 35 that turns to column 30 nearby gets final product, 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 fastening teat 56 is formed greatlyyer than the step discrepancy in elevation G between the outer diameter part 36 of the outer diameter part 37 of steering handle pillar connecting portion 34 and 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 fastening teat 56 be fastened on slot part 35 dearly and fastening positively; And, even for having the column packing ring 50 of the fastening teat 56 longer than step discrepancy in elevation G, also can be through avoiding fastening teat 56 to touch the outer diameter part 37 of steering handle pillar connecting portion 34 along the curved face part 63 that with the line segment L1 that arrives the inside diameter 52B of column packing ring 50 from the central portion front end 56A of fastening teat 56 center O through column packing ring 50 is the basic circle Q of diameter.Like this, need for this reason, can not shorten the working position of slot part 35 at the axial whole slot part 35 that forms of steering handle pillar connecting portion 34.
The 2nd embodiment
Below, with reference to Fig. 7～Fig. 9, explain to be suitable for the 2nd embodiment of the present invention.In the 2nd embodiment,, omit explanation to the part mark same reference numerals that likewise constitutes with above-mentioned the 1st embodiment.
In above-mentioned the 1st embodiment; The occasion that the fastening teat 56 of column packing ring 50 is fastened in the slot part 35 is illustrated; But in the 2nd embodiment, the fastening of column packing ring 250 facial 256 is different with above-mentioned the 1st embodiment with the chamfered section that turns to column 30 235 engaging this point.
Fig. 7 is the birds-eye view of the column packing ring 250 of the 2nd embodiment.
In Fig. 7, represent the basic circle P of the just round portion 62 of inside diameter 252B with a long and short dash line, represent the basic circle Q of curved face part 63 with long and two-short dash line.Basic circle P and basic circle Q are round for just.
Fastening facial 256 is for carrying out the planar portions that chamfering forms by linearity to the part of the periphery of basic circle P.Prolonged the center O through outer diameter part 52A with the vertical rectilinear extended line L2 of the central portion longitudinally of fastening facial 256.
Basic circle Q is configured in such position, and in this position, the center O 1 of basic circle Q is positioned on the extended line L2, and the central portion front end 256A and the basic circle Q of fastening facial 256 are circumscribed.As configuration baseline circle Q, then inside diameter 252B with fastening facial 256 position in opposite directions, the part of basic circle Q is positioned at than basic circle P more leans on outer diameter part 52A side, and intersects at 2 intersection point X, X.In this 2nd embodiment, the part that more is in the basic circle Q in the outside than intersection point X, X becomes curved face part 63.Promptly; The part that being positioned at of inside diameter 252B more leaned on facial 256 sides of fastening than intersection point X, X is by constituting with the cooresponding basic circle P of the diameter J of threaded portion 33B, and remaining part is by constituting with cooresponding basic circle Q of the diameter I of steering handle pillar connecting portion 34 and fastening facial 256.
In addition; In other words, be that the diameter K of the basic circle Q of diameter is set greatlyyer than the diameter I of the steering handle pillar connecting portion 34 that turns to column 30 with the size of the line segment L3 of the inner edge that arrives column packing ring 250 from the central portion front end 256A of the fastening of column packing ring 250 facial 256 center O through column packing ring 250.
Fig. 8 inserts the cutaway view that leads to the state on steering handle pillar connecting portion 34 for column packing ring 250.
As shown in Figure 8, the bottom of 33B and steering handle pillar connecting portion 34 in the threaded portion is provided with machine up and the bottom of outer diameter part 36 and outer diameter part 37 is carried out chamfering and the plane chamfered section 235 that formed.Chamfered section 235 forms and facial 256 corresponding shape of the fastening of column packing ring 250, and in chamfered section 235, column packing ring 250 is by spline through facial 256 fastenings of fastening.
With the outer diameter part 36 of bearing connecting portion 33 is that the radial depth D2 of the chamfered section 235 of benchmark is formed greatlyyer than the size of step discrepancy in elevation G.That is, chamfered section 235 is positioned at than outer diameter part 37 in the bottom that the outer diameter part 37 of steering handle pillar connecting portion 34 also forms chamfered section 235 and more leans on radially inner side.
The radially overhang H2 of fastening facial 256 that with basic circle P is the occasion of benchmark is formed greatlyyer than step discrepancy in elevation G, fastening facial 256 can than the outer diameter part 37 of steering handle pillar connecting portion 34 more toward radially inner side enter into chamfered section 235.
Fig. 9 inserts the cutaway view that leads to the state on the 33B of threaded portion for column packing ring 250.
As shown in Figure 9; Be placed under the state above the upper nut 45 (Fig. 3) at column packing ring 250; Between the outer diameter part 36 of curved face part 63 and threaded portion 33B, vacate the gap; But threaded portion 33B is connected to than center O and is more guided toward just the justifying portion 62 of intersection point X, X side, is positioned in position.For this reason, the fastening facial 256 that has been fastened on chamfered section 235 can not thrown off from chamfered section 235, can positively prevent to rotate.In addition, fastening facial 256 deeper is fastened in the chamfered section 235 than the step discrepancy in elevation G that turns to column 30,, can securely 250 fastenings of column packing ring turned on the column 30 for this reason, positively prevents rotation.
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 than littler with the diameter J of the outer diameter part 36 of jam nut 51 bonded assembly threaded portion 33B; With the line segment L3 that arrives the inside diameter 252B of column packing ring 250 from the central portion front end 256A of the fastening of column packing ring 250 facial 256 center O through column packing ring 250 is that the diameter K of the basic circle Q of diameter is set greatlyyer 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 is set identically with the diameter J of the threaded portion 33B that turns to column 30; For this reason; When being entrenched in, column packing ring 250 turns to 30 last times of column; Can make column packing ring 250 pass steering handle pillar connecting portion 34 along being the curved face part 63 of the basic circle Q of diameter with line segment L3.For this reason; Even on steering handle pillar connecting portion 34, chamfered section 235 is not set; Also can make column packing ring 250 pass steering handle pillar connecting portion 34, the top that only is located at upper nut 45 owing to the chamfered section 235 that turns to column 30 nearby gets final product, 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 fastening facial 256 is formed greatlyyer than the step discrepancy in elevation G between the outer diameter part 36 of the outer diameter part 37 of steering handle pillar connecting portion 34 and 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 fastening facial 256 be fastened on chamfered section 235 dearly and fastening positively, and, even for having the column packing ring 250 of the fastening facial 256 longer than step discrepancy in elevation G; Also can avoid fastening facial 256 to touch the outer diameter part 37 of steering handle pillar connecting portion 34 through along being the curved face part 63 of the basic circle Q of diameter with the line segment L3 that arrives the inside diameter 252B of column packing ring 250 from the central portion front end 256A of fastening facial 256 center O through column packing ring 250.Like this, need for this reason, can not shorten the working position of chamfered section 235 in the axial whole chamfered section 235 that forms of steering handle pillar connecting portion 34.
Description of reference numerals
1 two-wheeled (Straddle riding type vehicle)
10 vehicle frames
11 pipes
15 bridging parts
16 breeches pipes
26 fork members
30 turn to column
The 33A fitting portion
The 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 bearing cone on top)
42 times side bearings (being located at the bearing of bottom)
42B inner ring (being located at the bearing cone of bottom)
45 upper nut (screw top part)
50,250 column packing rings
51 jam nuts
56 fastening teats
56A, 256A central portion front end
235 chamfered section
256 fastenings are facial
D, the D2 degree of depth
The G step discrepancy in elevation
The H overhang
I diameter (turning to the external diameter on column top)
J diameter (external diameter of threaded portion)
K diameter (line segment with the inner edge that arrives the column packing ring is the circle diameter of 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 (line segment with the inner edge that arrives the column packing ring is the circle of diameter)
Claims (2)
1. the connection structure that turns to column of a Straddle riding type vehicle; This Straddle riding type vehicle has head pipe (11) and fork member (26); This head pipe (11) is located at the front portion of vehicle frame (10); What this fork member (26) had breeches pipe (16) about the pivotal support front-wheel of bottom, connects the bridging part (15) of the breeches pipe (16) about this and is located at the centre of this bridging part (15) and extended towards the top is turned to column (30) by pivotal support in said head pipe (11); In said slot part (35) or the chamfered section (235) that is provided with on the column (30) along the column axis that turn to; The said bottom pivotal support that turns to column (30) is in the inner ring (42B) of the bearing (42) of the bottom that is set at said head pipe (11); At the said top setting-in that turns to column (30) be located at the inner ring (41B) of bearing (41) on the top of said head pipe (11); Go up to connect the screw top part (45) that the said inner ring (41B) of the said bearing (41) on the top that is located at said head pipe (11) is applied precompressed at the said column (30) that turns to; At the top of this screw top part (45) configuration column packing ring (50,250); Said column packing ring (50,250) has and the said said slot part (35) of column (30) or the fastening teat (56) or the fastening face (256) of said chamfered section (235) fastening of turning to, and jam nut (51) is connected with the said column (30) that turns to from the top of this column packing ring (50,250), it is characterized in that:
Ratio leans on the external diameter that turns to column top (34) (I) of top to be set forr a short time than the external diameter (J) of this threaded portion (33B) with said jam nut (51) bonded assembly threaded portion (33B), and
With the line segment (L1, L3) of the inner edge that arrives this column packing ring (50,250) from the central portion front end (56A, 256A) of the said fastening teat (56) of said column packing ring (50,250) or said fastening facial (256) center (O) through said column packing ring (50,250) this diameter (K) as the circle (Q) of diameter; Be set greatlyyer than the said external diameter (I) of column top (34) that turns to
The internal diameter (M) of said column packing ring (50,250) is set identically with the external diameter (J) of the said threaded portion (33B) that turns to column (30); And said said slot part (35) that turns to column (30) or said chamfered section (235) only are arranged near the top of the said said screw top part (45) that turns to column (30).
2. the connection structure that turns to column of Straddle riding type vehicle according to claim 1; It is characterized in that: the overhang (H) of said fastening teat (56) or said fastening facial (256) is formed greatlyyer than the step discrepancy in elevation (G) between the external diameter (J) of the said external diameter (I) that turns to column top (34) and said threaded portion (33B), and the degree of depth (D, D2) of said slot part (35) or said chamfered section (235) is formed deeplyer than the size of the said step discrepancy in elevation (G).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-028850 | 2011-02-14 | ||
| JP2011028850A JP5593251B2 (en) | 2011-02-14 | 2011-02-14 | Fastening structure for steering stem of saddle riding type vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102632957A true CN102632957A (en) | 2012-08-15 |
| CN102632957B 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) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109457764A (en) * | 2018-11-21 | 2019-03-12 | 开平摩鼎卫浴科技有限公司 | Go up and down shower seat sliding sleeve |
| CN110325749A (en) * | 2017-02-27 | 2019-10-11 | 蒂森克虏伯普利斯坦股份公司 | For turning to the sliding bearing of main shaft and for the steering column of motor vehicles |
| CN113790214A (en) * | 2021-09-29 | 2021-12-14 | 江门市大长江集团有限公司 | Motorcycle and steering structure |
Families Citing this family (1)
| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05170163A (en) * | 1991-12-05 | 1993-07-09 | Honda Motor Co Ltd | Steering structure for motorcycle |
| 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 |
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| 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 | ||
| 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 |
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2011
- 2011-02-14 JP JP2011028850A patent/JP5593251B2/en active Active
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2012
- 2012-01-20 CN CN201210018329.1A patent/CN102632957B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05170163A (en) * | 1991-12-05 | 1993-07-09 | Honda Motor Co Ltd | Steering structure for motorcycle |
| 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 |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110325749A (en) * | 2017-02-27 | 2019-10-11 | 蒂森克虏伯普利斯坦股份公司 | For turning to the sliding bearing of main shaft and for the steering column of motor vehicles |
| US11473617B2 (en) | 2017-02-27 | 2022-10-18 | Thyssenkrupp Presta Ag | Sliding bearing for a steering spindle and steering column for a motor vehicle |
| CN109457764A (en) * | 2018-11-21 | 2019-03-12 | 开平摩鼎卫浴科技有限公司 | Go up and down shower seat sliding sleeve |
| 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 |
| CN113790214A (en) * | 2021-09-29 | 2021-12-14 | 江门市大长江集团有限公司 | Motorcycle and steering structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102632957B (en) | 2014-07-16 |
| JP2012166677A (en) | 2012-09-06 |
| JP5593251B2 (en) | 2014-09-17 |
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