CN208565304U - Yoke one profile shaft and telescopic shaft - Google Patents
Yoke one profile shaft and telescopic shaft Download PDFInfo
- Publication number
- CN208565304U CN208565304U CN201690001026.0U CN201690001026U CN208565304U CN 208565304 U CN208565304 U CN 208565304U CN 201690001026 U CN201690001026 U CN 201690001026U CN 208565304 U CN208565304 U CN 208565304U
- Authority
- CN
- China
- Prior art keywords
- axial
- yoke
- shaft
- base portion
- inclined surface
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
- F16D3/26—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected
- F16D3/38—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected with a single intermediate member with trunnions or bearings arranged on two axes perpendicular to one another
- F16D3/382—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected with a single intermediate member with trunnions or bearings arranged on two axes perpendicular to one another constructional details of other than the intermediate member
- F16D3/387—Fork construction; Mounting of fork on shaft; Adapting shaft for mounting of fork
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
- F16D1/10—Quick-acting couplings in which the parts are connected by simply bringing them together axially
- F16D2001/103—Quick-acting couplings in which the parts are connected by simply bringing them together axially the torque is transmitted via splined connections
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Steering Controls (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
Via setting in flat facial (20) of the axial another side of the base portion (15a), make the axial one end edge in the curved inclined surface portion (18a) that the outer peripheral surface of the axial one end of inner shaft (9b) is arranged, axial the other end continuous edge with the convex curved surface (21) of the outer peripheral surface setting of the base portion (15a) in yoke (13d).The tilt angle of the tangent line at the axial one end edge of central axis relative to the inner shaft (9b), described curved inclined surface portion (18a) is less than 90 ゜.Hereby it is achieved that ensuring the retraction of telescopic shaft and ensuring that both the intensity of yoke one profile shaft is easy the construction taken into account.
Description
Technical field
The present invention relates to the yoke of universal joint is integrated with inner shaft formed yoke one profile shaft and comprising described
Yoke one profile shaft and the improvement of telescopic shaft constituted.
Background technique
The transfer of automobile is configured to shown in Fig. 7 (referring for example to patent document 1).The steering wheel 1 of driver's operation
Movement is transferred to the input of tooth sector unit 5 via steering shaft 2, universal joint 3a, jackshaft 4, another universal joint 3
Axis 6.As a result, by pushing and pulling the 1 pair of pull rod 7,7 in left and right using the rack-and pinion gear mechanism for being built in tooth sector unit 5,
Steering angle corresponding with the operating quantity of steering wheel 1 is assigned to 1 pair of left and right deflecting roller.In addition, the transfer in diagram is incorporated with
The corresponding auxiliary force of the power for being applied to steering wheel 1 with driver is given to steering shaft using electric motor 8 by electric assisting apparatus
2。
In addition, steering wheel 1 jacks up the transfer of diagram to driver side in collision accident in order to prevent, make jackshaft
4 become the telescopic shaft shown in Fig. 8 for combining inner shaft 9 with outer tube 10 and being formed.The front end outer peripheral surface of inner shaft 9 is provided with sun
Spline part 11.In addition, the inner peripheral surface in outer tube 10 is provided with yin spline portion 12.Moreover, jackshaft 4 is configured to by making inner shaft
9 yang spline portion 11 can transmit torque and can be fastened on to axially opposing displacement the yin spline portion 12 of outer tube 10, thus overall length energy
It is enough flexible.In addition, the yoke 13a of composition universal joint 3a is fixed on interior using the combination such as welding in the case where example illustrated
The rear end of axis 9, the yoke 13b for constituting universal joint 3b combine the front end for being fixed on outer tube 10 using welding etc..
In addition, it is known that and be integrally formed to make about constituting the yoke of universal joint, constituting the inner shaft of jackshaft in the past
For yoke one profile shaft.(B) and Fig. 2 (B) illustrate constructed in the past a example for such yoke one profile shaft referring to Fig.1.In addition,
In Fig. 1~2, right side is axial side, and left side is the axial other side.
In the case where yoke one profile shaft 14 documented by Fig. 1 (B) and Fig. 2 (B), inner shaft 9a is in the base from composition yoke 13c
The axial another side in portion 15 is in the state that the other side extends in the axial direction, and yoke 13c one, and is coaxially disposed with base portion 15.?
With the outer peripheral surface of the i.e. axial one end of the linking part of base portion 15 in inner shaft 9a, it is provided with and more increases towards axial side more to outer diameter
The inclined section concave arc shape in direction curved inclined surface portion 18, the stress for being applied to curved inclined surface portion 18 can be alleviated.In addition,
At least axial the other end and middle part in the outer peripheral surface of base portion 15 are provided with the axial other side of more direction more subtract to outer diameter
The inclined convex curved surface 21 in small direction, axial the other end edge of convex curved surface 21 and the axial one end in curved inclined surface portion 18
Portion's edge-smoothing is continuous.
The inner shaft 9a and outer tube 10 (referring to Fig. 8) for constituting above-mentioned such yoke one profile shaft 14 can transmit torque and can be axial
Relative shift spline engaging, constitute jackshaft 4.In the case where such jackshaft 4a, the receipts of overall length when collision accident
As shown in Fig. 1 (B), the axial one end edge of outer tube 10 can be collided with curved inclined surface portion 18 for contracting.Cause such collision
Axial distance, that is, retraction is longer, and can more adequately protect driver.But the overall length of yoke one profile shaft 14 due to setting
The relationship in space is decided to be scheduled length.Therefore, it is desired to not change the overall length of yoke one profile shaft 14, can prolong to realize
The construction of long retraction.
In the case where above-mentioned such jackshaft 4a, as the overall length for not changing yoke one profile shaft 14, extends and shrink punching
The method of journey for example considers following method: reducing the wall thickness of the base portion 15 of yoke 13c, the overall length for correspondingly extending inner shaft 9a (makes to incline
Side is deviateed in the axial direction for the position in skew surface portion 18)；The radius of curvature R for reducing the section in curved inclined surface portion 18, correspondingly reduces
The axial dimension (the position side deviation in the axial direction for making axial the other end edge in curved inclined surface portion 18) in curved inclined surface portion 18.
However, the wall thickness (the wall thickness T for the part for especially combining arm 16,16 to link for 1 pair) of the base portion 15 of yoke 13c, curved inclined surface
The radius of curvature R in the section in portion 18 is for the viewpoint for ensuring intensity, due to needing to be more than scheduled size, it is thus impossible to
It is unlimited to reduce.
Existing technical literature
Patent document
Patent document 1: Japanese Unexamined Patent Publication 2015-21596 bulletin
Summary of the invention
The problem of present invention is to be solved
The present invention be in view of above-mentioned such situation, in order to realize ensure telescopic shaft retraction and ensure that yoke is one-piece type
Both intensity of axis is easy the construction taken into account and invents.
The solution to the problem
Yoke one profile shaft of the invention includes the yoke of universal joint, inner shaft.The yoke includes: base portion；With from the base
2 site locations of the diametrically opposite side in portion in the axial direction side extend 1 pair combine arm.In addition, the inner shaft is from the base
The other side extends the radial central portion of the axial another side in portion in the axial direction, can be integrated with the yoke.In addition, in the inner shaft
The outer peripheral surface of axial one end be provided with by more inclined section concave curved planar towards axial side outer diameter more in a manner of increasing
Curved inclined surface portion.
In addition, making the axis in the curved inclined surface portion via the flat face for the axial another side that the base portion is arranged in
To axial the other end continuous edge at one end edge and the outer peripheral surface of the base portion.That is, the axial direction in the curved inclined surface portion
The radial inner end continuous edge at one end edge and the flat face, and axial the other end of the outer peripheral surface of the base portion
The radially outer end continuous edge at edge and the flat face.
In the case where implementing yoke one profile shaft of the invention, for example, central axis relative to the inner shaft, described incline
The tilt angle of the tangent line at the axial one end edge in skew surface portion can be less than 90 ゜.In other words, the curved inclined surface can be made
The continuous portion at the radial inner end edge of the axial one end edge in portion and the flat face becomes (about cross sectional shape) no
The corner of energy differential.
In addition, implement the present invention in the case where, can make the axial one end edge in the curved inclined surface portion with it is described
The continuous portion at the radial inner end edge of flat face becomes the song of the radius of curvature in section than the section in the curved inclined surface portion
The small fillet part of rate radius.
In addition, 1 pair is combined in the case where implementing yoke one profile shaft of the invention, such as in the base portion of preferably yoke
The wall thickness of the wall ratio combination arm of the part of arm connection wants thick.
Also, in the case where implementing yoke one profile shaft of the invention, preferably curved inclined surface portion is more towards axis
The inclined section concave arc shape of the mode more increased to side outer diameter.
In addition, the axial direction of preferably flat face and base portion is hung down in the case where implementing yoke one profile shaft of the invention
Directly.
Telescopic shaft of the invention includes above-mentioned yoke one profile shaft, outer tube.
The outer tube, which can transmit torque and can be fitted into axially opposing displacement, constitutes the described interior of the yoke one profile shaft
Axis.
It as the more specific composition of such telescopic shaft of the invention, such as can be constituted: be made in described using following
In the yang spline portion and setting for being axially disposed within the part deviateed from the curved inclined surface portion in the outer tube in the outer peripheral surface of axis
Inner peripheral surface yin spline portion engaging composition；Deviate in axial direction from the curved inclined surface portion in the outer peripheral surface of the inner shaft
Part circumferencial direction leave interval respectively the multiple inboard grooves being axially formed, in the inner peripheral surface of the outer tube with institute
The matched position of each inboard groove is stated respectively between the multiple outside grooves being axially formed, it is respectively that multiple each balls are axial simultaneously
Arrange the composition of configuration.
In addition, in the case where the telescopic shaft stated on the implementation, for example, the inner peripheral surface of the axial one end of outer tube can also be with shape
As cone cell, overall length is enabled to shrink the position up to axial the one end edge and flat facial contact of outer tube.
In addition, in the case where the telescopic shaft stated on the implementation, for example, the inner peripheral surface of the axial one end of outer tube can also be with shape
As the cylindrical shape of the yin spline portion larger diameter than outer tube, overall length is shunk up to the axial one end edge of outer tube
With the position of flat facial contact.
The effect of invention
According to the yoke one profile shaft and telescopic shaft of the invention with above-mentioned such composition, can be easy to make to ensure to stretch
The retraction of axis and ensure that both the intensity of yoke one profile shaft is taken into account.
That is, in the present case, via the flat face for the axial another side that the base portion is arranged in, including making
Axial one end edge, the axis with the outer peripheral surface of the base portion of yoke in the curved inclined surface portion of the outer peripheral surface setting of the axial one end of axis
To the other end continuous edge.Therefore, in the present case, with the axial one end edge in the curved inclined surface portion and institute
The axial the other end edge directly (not via the flat face) for stating the outer peripheral surface of base portion, which continuously constructs, to be compared, for example,
The radius of curvature in the section in the curved inclined surface portion be same size in the case where, it is ensured that the retraction of telescopic shaft it is same
When, it is ensured that the wall thickness for the part that 1 pair combines arm to link just is become easy in the base portion.In this way, in situation of the invention
Under, it can be easy to make to ensure the retraction of telescopic shaft and ensure that both the intensity of yoke one profile shaft is taken into account.
Detailed description of the invention
Fig. 1 is so that the jackshaft (A) of an embodiment of the invention and the jackshaft (B) of comparative example are respectively in overall length
The state most shortened, and the end view shown in by the state of a part cutting.
Fig. 2 is the one-piece type jackshaft of yoke for showing the yoke one profile shaft (A) and comparative example of an embodiment of the invention
(B) end view.
Fig. 3 is the enlarged drawing of the upper left of Fig. 2 (A).
Fig. 4 (A) and (B) are the IV-IV cross-sectional views of Fig. 2 (A).
Fig. 5 is so that the jackshaft of variform 1st variation of the axial one end of outer tube most shortens in overall length
State, and the end view shown in by the state of a part cutting.
Fig. 6 is so that the jackshaft of variform 2nd variation of the axial one end of outer tube most shortens in overall length
State, and the end view shown in by the state of a part cutting.
Fig. 7 is the partial cutoff side view for showing 1 example of previously known transfer.
Fig. 8 is the partial cutoff side view that jackshaft and 1 pair of universal joint are taken out and shown.
The explanation of appended drawing reference
1: steering wheel
2: steering shaft
3a, 3b: universal joint
4,4a, 4b: jackshaft
5: tooth sector unit
6: input shaft
7: pull rod
8: electric motor
9,9a, 9b: inner shaft
10,10a, 10b: outer tube
11: yang spline portion
12: yin spline portion
13a, 13b, 13c, 13d: yoke
14,14a: yoke one profile shaft
15,15a: base portion
16: in conjunction with arm
17: circular hole
18,18a: curved inclined surface portion
19: cylinder face part
20: flat face
21: convex curved surface
Specific embodiment
Illustrate an embodiment of the invention referring to Fig.1~4.
In addition, the construction of present embodiment is shown respectively in (A) of Fig. 1~2, the i.e. previous construction of comparative example is shown respectively in (B).
In addition, right side is axial side in Fig. 1,2,4, left side is the axial other side.
The jackshaft 4b for being equivalent to the present embodiment of telescopic shaft of the invention includes yoke one profile shaft 14a, the steel of steel
The outer tube 10 of system.
Yoke one profile shaft 14a includes the yoke 13d of universal joint, inner shaft 9b.
Yoke 13d includes: base portion 15a；2 site locations (2 up and down of Fig. 1~2 from the diametrically opposite side of base portion 15a
Site location) in the state that side (right sides of Fig. 1~2) extend in the axial direction be arranged 1 pair combine arm 16,16.In this implementation
In the case where mode, at least axial the other end and middle part in the outer peripheral surface of base portion 15 are provided with more towards axial another
Get over the inclined convex curved surface 21 in direction reduced to outer diameter in side.In addition, the radially outer end in the axially inner side face of base portion 15,
It is arranged with axially vertical flat facial 20 of base portion 15 throughout complete cycle.Moreover, flat facial 20 radially outer end edge with
Axial the other end continuous edge of convex curved surface 21.In addition, the terminal part for combining arm 16,16 two, circular hole 17,17 is distinguished
Become mutually and is coaxially disposed.In the state of assembling the universal joint 3a constituted comprising yoke 13d (referring to Fig. 7~8),
The bearing cup for securing bottomed cylindrical is embedded in circular hole 17,17 respectively.As it does so, in two bearings cup, respectively via a plurality of rolling
It is supported freely to rotate the end of needle, cross axle.
Inner shaft 9b the radial central portion of the axial another side from base portion 15a in the axial direction the other side extend in the state of,
With yoke 13d one and be coaxially disposed with base portion 15a.(do not scheme Fig. 1~2 axial the other end in the outer peripheral surface of inner shaft 9b
The end shown) it is provided with yang spline portion 11 (referring to Fig. 8), it is provided with the axial side outer diameter of more direction more increases in axial one end
The curved inclined surface portion 18a of the inclined section concave arc shape of big mode (is clipped in yang spline portion 11 and inclination is bent in axial middle part
Part between facial 18a) outer diameter is provided in axial indeclinable cylinder face part 19.The outer diameter and yang spline of cylinder face part 19
The slot bottom diameter of a circle in portion 11 is roughly equal.
In addition, central axis relative to inner shaft 9b, curved inclined surface portion 18a axial the other end edge (starting point) is cut
The tilt angle of line is 0 ゜.In other words, the axial one end at axial the other end edge of curved inclined surface portion 18a and cylinder face part 19
Portion's edge-smoothing is continuous.In addition, the axial one end edge of curved inclined surface portion 18a with flat facial 20 radial inner end edge
Continuously.That is, via flat facial 20, the axial one end edge of curved inclined surface portion 18a and the axial other end of convex curved surface 21
Portion's continuous edge.In addition, in this case, the axis of the curved inclined surface portion 18a of the central axis relative to inner shaft 9b
To one end edge tangent line tilt angle theta less than 90 ゜ (0 ゜ < θ <, 90 ゜) in example illustrated for the ゜ of 40 ゜~60 (40 ゜≤
The ゜ of θ≤60) left and right }.In other words, the axial one end edge of curved inclined surface portion 18a with flat facial 20 radial inner end edge
Continuous portion be the corner that differential is unable to (about cross sectional shape).
In addition, in this case, the shape from flat facial 20 outer peripheral edge of end on observation is Fig. 4
(A) circle shown in (the coaxial circle with curved inclined surface portion 18a).But in the case where implementing the present invention, from end on observation
The shape of flat facial 20 outer peripheral edge for example can be the other shapes such as rectangle shown in Fig. 4 (B).
It is used in this way, may be used as dimension measurement flat facial the 20 of the axial another side formation of the base portion 15a of yoke 13d
Datum level.In addition, flat facial 20 may be used as machining benchmark when processing to the other parts of yoke one profile shaft 14a, energy
Enough improve processability.
Outer tube 10 is manufactured to circular tube shaped, and inner peripheral surface is provided with yin spline portion 12.
Moreover, the case where jackshaft 4b of present embodiment is with above-mentioned previously known jackshaft 4 shown in Fig. 8 are same,
Jackshaft 4 is configured to by enabling the yang spline portion 11 of inner shaft 9 to transmit torque and can be fastened on outer tube 10 to axially opposing displacement
Yin spline portion 12, so that overall length can stretch.In the case where the jackshaft 4b of such present embodiment, it is being encased in vapour
It, can be up to the axial direction of outer tube 10 shown in contraction such as Fig. 1 (A) of overall length when collision accident in the state of the transfer of vehicle
One end edge and curved inclined surface portion 18a are collided.
According to yoke the one profile shaft 14a and jackshaft 4b of the present embodiment with above-mentioned such composition, can be easy
Make the retraction for ensuring jackshaft 4b and ensures that both the intensity of yoke one profile shaft 14a is taken into account.
About this point, by (there are also the double dot dash lines of Fig. 3 shown in the construction of present embodiment and Fig. 1 (B) and Fig. 2 (B)
Shown in) construction of comparative example is illustrated while mutually comparing.
The construction of comparative example and the construction of present embodiment make curved inclined surface the difference lies in that do not include flat facial 20
The axial one end edge in portion 18 and axial the other end edge-smoothing of convex curved surface 21 are continuous.In the structure of such comparative example
In the case where making, in order not to change the overall length of yoke one profile shaft 14, the retraction of jackshaft 4a is increased into δ, such as Fig. 2 (B)
Shown in double dot dash line, when making curved inclined surface portion 18 side moving in parallel δ in the axial direction, convex curved surface 21 also can in the axial direction side it is parallel
Mobile δ.So in the case where the construction of comparative example, before and after such move in parallel, the section in curved inclined surface portion 18
Radius of curvature R will not change, but can subtract the wall thickness for the part that 1 pair combines arm 16,16 to link from T in the base portion 15 of yoke 13c
It is less TS (T > TS).
In contrast, in the case where the construction of present embodiment, via flat facial 20, make curved inclined surface portion 18a's
Axial the other end continuous edge at axial one end edge and convex curved surface 21.In the feelings of the construction of such present embodiment
Under condition, in order not to change the overall length of yoke one profile shaft 14a, the retraction of jackshaft 4b is increased into δ (referring to Fig.1), such as Fig. 2
(A) shown in, on the basis of the position in the curved inclined surface portion 18 of the construction of the comparative example shown in Fig. 2 (B), make curved inclined surface portion 18a
In the case that side moves in parallel δ in the axial direction, convex curved surface 21 does not need side in the axial direction and moves in parallel, and can rest on original
Position.So in the case where the construction of present embodiment, before and after such move in parallel, not only curved inclined surface portion
The radius of curvature R in the section of 18a, and the wall thickness T for the part for combining arm 16,16 to link for 1 pair in the base portion 15a of yoke 13d
Also do not change.That is, the part for combining arm 16,16 to link for 1 pair in the base portion 15 of yoke 13c (convex curved surface 21 and base portion 15a's
Part between inner surface) wall thickness T maintain than combine arm 16,16 wall thickness S it is thick (T > S), be able to suppress in combination arm
The root in portion 16,16 generates high stress.
Further, as shown in figure 3, in the construction (solid line) of present embodiment, the construction (double dot dash line) of comparative example, i.e.,
Make curved inclined surface portion 18a, the radius of curvature R in 18 section, curved inclined surface portion 18a, 18 axial ends portion edge axial direction
The wall thickness T for the part that 1 pair combines arm 16,16 to link, is mutually equal in 15 the base portion 15a of yoke 13d, 13c by position respectively
In the case of, in the case where the construction of present embodiment, with the construction of comparative example the case where compared with, outer tube 10 (referring to Fig.1)
Axial one end edge and the position (present embodiment α, comparative example β) of curved inclined surface portion 18a, 18 collisions become by paraxial
To the position of side.So in this case, the construction of present embodiment is capable of increasing centre compared with the construction of comparative example
The retraction of axis.
As described above, in this case, the intensity about yoke one profile shaft 14a can be made to be important ruler
The wall for the part for combining arms 16,16 to link for two in the radius of curvature R in the section very little, i.e. curved inclined surface portion 18a, base portion 15a
Thick T and the outer diameter φ of cylinder face part 19 respectively become size identical with the construction of comparative example, can make stretching for jackshaft 4b
Contracting stroke is greater than the construction of comparative example.So can be easy to make to ensure jackshaft 4b in the case where the construction of present embodiment
Retraction and ensure that both the intensity of yoke one profile shaft 14a is taken into account.
Additionally, this invention is not limited to above-mentioned embodiment, it is able to carry out appropriate deformation, improvement etc..
Fig. 5 and Fig. 6 shows variform 1st and the 2nd variation of the axial one end of above embodiment and outer tube
Jackshaft 4b.
In the 1st variation shown in Fig. 5, the inner peripheral surface of the axial one end of outer tube 10a has the cone for being formed as cone cell
Face 30.Axial one end edge of the diameter of the inner peripheral surface at the axial one end edge of the conical surface 30 greater than curved inclined surface portion 18a
Diameter.In addition, the conical surface 30 is formed not contact with curved inclined surface portion 18a, outer tube when the overall length of jackshaft 4b most shortens
The axial one end edge of 10a is contacted with flat facial the 20 of yoke 13d.
So the conical surface 30 formed using the inner peripheral surface of the axial one end in outer tube 10a, it can make that jackshaft 4b's is complete
It is long to shrink axial one end edge and flat facial 20 positions contacted of yoke 13d until outer tube 10a.So in the 1st deformation
In example, the retraction of jackshaft 4b can be made longer than above embodiment.
In the 2nd variation shown in Fig. 6, the inner peripheral surface of the axial one end of outer tube 10a, which has, is formed as cylindrical shape
Cylindrical portion 31 has a diameter larger than the yin spline portion 12 of outer tube 10b, and be greater than the axial one end edge of curved inclined surface portion 18a
Diameter.In addition, cylindrical portion 31 is formed as not contacting with curved inclined surface portion 18a, outer tube when the overall length of jackshaft 4b most shortens
The axial one end edge of 10a is contacted with flat facial the 20 of yoke 13d.
So the cylindrical portion (original text: face) 31 formed using the inner peripheral surface of the axial one end in outer tube 10a, can make
The overall length of jackshaft 4b shrinks axial one end edge and flat facial 20 positions contacted of yoke 13d until outer tube 10a.Institute
Also the retraction of jackshaft 4b can be made longer than above embodiment in the 2nd variation.
In addition, flat face of the invention is preferably axially vertical with base portion 15 as shown in the embodiment, but not
It is limited to this, as long as being able to achieve effect of the invention, for example, can be relative to the axially inclined of base portion 15.
Utilization possibility in industry
Telescopic shaft of the invention can be adapted for the telescopic shaft other than the jackshaft 4b of transfer.
The application is willing to 2015-163045 based on Japanese patent application laid filed on August 20th, 2015, and content is as ginseng
According to being incorporated herein.
Claims (12)
1. a kind of yoke one profile shaft, comprising:
The yoke of universal joint comprising: base portion；With 2 site locations of the diametrically opposite side from the base portion in the axial direction one
1 pair of side extension combines arm；And
Inner shaft, from the radial central portion of the axial another side of the base portion, the other side extends in the axial direction, is set as with the yoke
One,
In the outer peripheral surface of the axial one end of the inner shaft, it is provided with more to be tilted towards axial side outer diameter more in a manner of increasing
Section concave curved planar curved inclined surface portion,
Via the flat face for the axial another side that the base portion is arranged in, make the axial one end side in the curved inclined surface portion
Axial the other end continuous edge of the outer peripheral surface of edge and the base portion.
2. yoke one profile shaft as described in claim 1,
The tilt angle of the tangent line at the axial one end edge in central axis relative to the inner shaft, described curved inclined surface portion is small
In 90 ゜.
3. yoke one profile shaft as claimed in claim 1 or 2,
Wall thickness in the base portion of the yoke by described 1 described in the wall ratio of the part linked in conjunction with arm in conjunction with arm wants thick.
4. yoke one profile shaft as claimed in claim 1 or 2,
The curved inclined surface portion is by more inclined section concave arc shape towards axial side outer diameter more in a manner of increasing.
5. yoke one profile shaft as claimed in claim 3,
The curved inclined surface portion is by more inclined section concave arc shape towards axial side outer diameter more in a manner of increasing.
6. yoke one profile shaft as claimed in claim 1 or 2,
The flat face is axially vertical with the base portion.
7. yoke one profile shaft as claimed in claim 3,
The flat face is axially vertical with the base portion.
8. yoke one profile shaft as claimed in claim 4,
The flat face is axially vertical with the base portion.
9. yoke one profile shaft as claimed in claim 5,
The flat face is axially vertical with the base portion.
10. a kind of telescopic shaft, comprising:
Yoke one profile shaft described in any one of claim 1~9；And
Outer tube can transmit torque and can be fitted into the inner shaft to axially opposing displacement,
Overall length can shrink axial one end edge and the curved inclined surface portion or the flat face until the outer tube
The position of contact.
11. telescopic shaft as claimed in claim 10,
The inner peripheral surface of the axial one end of the outer tube is formed cone cell, and overall length is enabled to shrink the institute up to the outer tube
State the position at axial one end edge Yu the flat facial contact.
12. telescopic shaft as claimed in claim 10,
The inner peripheral surface of the axial one end of the outer tube is formed the cylindrical shape of the yin spline portion larger diameter than the outer tube,
Overall length is enabled to shrink the position up to axial the one end edge and the flat facial contact of the outer tube.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015-163045 | 2015-08-20 | ||
| JP2015163045 | 2015-08-20 | ||
| PCT/JP2016/073504 WO2017030059A1 (en) | 2015-08-20 | 2016-08-09 | Integrated yoke shaft and telescoping shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208565304U true CN208565304U (en) | 2019-03-01 |
Family
ID=58051821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201690001026.0U Active CN208565304U (en) | 2015-08-20 | 2016-08-09 | Yoke one profile shaft and telescopic shaft |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP6528848B2 (en) |
| CN (1) | CN208565304U (en) |
| DE (1) | DE212016000176U1 (en) |
| WO (1) | WO2017030059A1 (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4927948Y1 (en) * | 1966-05-17 | 1974-07-30 | ||
| DE2849541A1 (en) * | 1978-11-15 | 1980-05-22 | Gelenkwellenbau Gmbh | UNIVERSAL SHAFT |
| US5716276A (en) * | 1996-09-03 | 1998-02-10 | Dana Corporation | Yoke shaft for a vehicular driveshaft assembly |
| JP3902415B2 (en) * | 2001-03-29 | 2007-04-04 | Ｎｔｎ株式会社 | Drive wheel bearing device |
| WO2008057060A2 (en) * | 2006-11-06 | 2008-05-15 | Tirsan Kardan Sanayi Ve Ticaret Anonim Sirketi | Sliding group of cardan shaft with interlocking mechanism |
| JP6217209B2 (en) | 2013-07-23 | 2017-10-25 | 日本精工株式会社 | Universal joint yoke |
| US9915291B2 (en) * | 2013-07-30 | 2018-03-13 | Nsk Ltd. | Torque transmission shaft having universal joint yoke and method of manufacturing the same |
| TWI589820B (en) | 2014-02-25 | 2017-07-01 | Big Sun Energy Tech Inc | Solar tracking system traction device fixed structure |
-
2016
- 2016-08-09 CN CN201690001026.0U patent/CN208565304U/en active Active
- 2016-08-09 DE DE212016000176.0U patent/DE212016000176U1/en active Active
- 2016-08-09 WO PCT/JP2016/073504 patent/WO2017030059A1/en active Application Filing
- 2016-08-09 JP JP2017535503A patent/JP6528848B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017030059A1 (en) | 2017-02-23 |
| JPWO2017030059A1 (en) | 2018-04-26 |
| DE212016000176U1 (en) | 2018-03-22 |
| JP6528848B2 (en) | 2019-06-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100503335C (en) | Telescopic steering shaft | |
| US9422986B2 (en) | Telescopic shaft | |
| JP4702627B2 (en) | Universal joint yoke and universal joint | |
| US9951806B2 (en) | Telescopic shaft | |
| US11383757B2 (en) | Shaft for steering device, method of manufacturing shaft for steering device, and electric power steering device | |
| CN109477527B (en) | Telescopic shaft | |
| JPWO2006070889A1 (en) | Electric power steering device | |
| CN105473882A (en) | Torque transmission shaft with yoke for universal joint and manufacturing method therefor | |
| CN107264184A (en) | Hub-bearing unit with rotor hub | |
| CN101096213A (en) | Telescopic shaft | |
| CN208565304U (en) | Yoke one profile shaft and telescopic shaft | |
| EP2738408B1 (en) | Cruciform-shaft universal joint and method for producing same | |
| JP2008087531A (en) | Electrically-driven telescopic adjustment type steering device | |
| JP2009174639A (en) | Fixed type constant velocity universal joint | |
| JP2007145061A (en) | Steering shaft | |
| CN112584943A (en) | Steering shaft for a vehicle and method for producing said steering shaft | |
| EP3056408B1 (en) | Steering system and rack shaft used for the steering system | |
| JP2019077250A (en) | Steering device | |
| KR101556203B1 (en) | Steering apparatus for vehicle | |
| EP2643608B1 (en) | Counter track joint with axial displacement range | |
| KR20200018663A (en) | Constant velocity slip ball joint | |
| JP2019211033A (en) | Cross shaft joint | |
| JP2015021596A (en) | Yoke for universal joint | |
| JP2011144820A (en) | Telescopic shaft and method for manufacturing the same | |
| JP4968100B2 (en) | Cross shaft universal joint |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |