CN104141797A - A coupling guard - Google Patents
A coupling guard Download PDFInfo
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- CN104141797A CN104141797A CN201410189290.9A CN201410189290A CN104141797A CN 104141797 A CN104141797 A CN 104141797A CN 201410189290 A CN201410189290 A CN 201410189290A CN 104141797 A CN104141797 A CN 104141797A
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- demarcation strip
- layer
- coupling guard
- sealing layer
- inserting hole
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Abstract
A coupling guard is provided. An opening of a pinion stand accommodating a pinion shaft is connected to an inserting through hole formed by separation plates inside and outside a separation compartment. The coupling guard comprises a pedestal, a telescoping layer, a sealing layer and a guiding part. The pedestal comprises a cylinder engaged relative to the opening, and a flange part arranged corresponding to the periphery part of the inserting through hole. The telescoping layer is compressed between the separation plates and the flange part. The sealing layer is pressed onto the periphery part by the telescoping layer and is attached relative to the periphery part. The guiding part is more protruding towards the separation plate side than the sealing layer and is inserted into the inserting though hole.
Description
Technical field
The present invention relates to the coupling guard that the steering equipment with vehicle arranges relatively.
Background technique
An example as coupling guard discloses floor sealed member in TOHKEMY 2004-243833 communique.This floor sealed member possesses the cylinder of maintenance and lip part.The gear-box that above-mentioned maintenance cylinder supports the input shaft towards steering equipment in the embedded maintenance of a side.Above-mentioned lip part is around the opposite side that is arranged at this maintenance cylinder, and one side is coated with the sealing plate of sponge system.Sealing plate is the ring-type around input shaft, and the end face in its outside forms the skid resistant course of rubber system stackedly.In the sealed member of floor, lip part is assembled in the periphery of axle inserting hole, and this axle inserting hole is formed at separates the inside of car chamber and outside demarcation strip.By this assembling, sealing plate the input shaft of inner side via axle inserting hole, to the surface side (car is indoor) of demarcation strip, expose.Now, lip part presses on demarcation strip by compression seal plate by skid resistant course.Thus, the periphery of axle inserting hole is sealed by skid resistant course, so can prevent dust, from car, outdoor via axle inserting hole, to enter car indoor.
For the situation of TOHKEMY 2004-243833 communique, the structure for locating when the demarcation strip of car body side and the either party of floor sealed member do not exist assembling.Therefore, when floor sealed member is assembled in to demarcation strip when middle body contraposition (make the axle inserting hole of demarcation strip and the sealing plate of ring-type), floor sealed member may be connected to obliquely to demarcation strip or floor sealed member is closely pressed on to demarcation strip.In these cases, frictional force, oblique external force etc. act on sealing plate the surface of skid resistant course of end face, thereby worry to produce fold at skid resistant course.If produce fold at skid resistant course, between skid resistant course and demarcation strip, produce gap, so around axle inserting hole, worry that the sealing of floor sealed member and demarcation strip reduces.
Summary of the invention
One of object of the present invention is to provide a kind of coupling guard that can realize the sealing between raising and demarcation strip.
The coupling guard of one embodiment of the present invention is structurally characterised in that, to being disposed at shell that the input shaft of the steering equipment of car outdoor takes in, be formed with the opening that the part of described input shaft is exposed towards passenger compartment side, at the inside and outside demarcation strip of separating car chamber, be formed with the inserting hole passing for a part for described input shaft, described coupling guard is for linking described opening and described inserting hole, described coupling guard comprises: pedestal, this pedestal comprises the lip part of a portion and ring-type, the opening of described cylinder portion and described shell is chimeric, and described input shaft is through this portion, described lip part along the circumferential hoop around described input shaft around described cylinder portion and with respect to the peripheral portion arranged opposite of the described inserting hole of described demarcation strip, the stretchable layer of ring-type, this stretchable layer be arranged at described lip part with opposed of described demarcation strip, and with compressed state between described demarcation strip and described lip part around described input shaft, the sealing layer of ring-type, sealing layer be arranged at described stretchable layer with opposed of described demarcation strip, and with the described stretchable layer of confined state press on the peripheral portion of described inserting hole and the state that spreads all over complete cycle and be close to this peripheral portion around described input shaft, and the guide portion of tubular, this guide portion is along the interior perimembranous setting of described sealing layer, more side-prominent towards described demarcation strip than described sealing layer, and is inserted in the inserting hole of described demarcation strip.
Accompanying drawing explanation
Fig. 1 is the concise and to the point sectional view from the steering axle device 1 of the top view one embodiment of the present invention of car body.
Fig. 2 is the side view of the included coupling guard of steering axle device 1 21, with section, shows a part.
Fig. 3 is arranged as coupling guard 21, pinion shaft 4 and pinion stand 17 exploded perspective view of coaxial shape.
Fig. 4 means the sectional view at main position that coupling guard 21 is assembled in to the steering axle device 1 of the state before demarcation strip 14.
Fig. 5 means the sectional view at main position of steering axle device 1 that coupling guard 21 is assembled into the state of demarcation strip 14.
Embodiment
By the detailed description of embodiments of the present invention example being carried out referring to accompanying drawing, above-mentioned and other feature and advantage of the present invention can become clearer, and wherein, identical reference character represents identical key element.
Below, with reference to accompanying drawing, embodiments of the present invention are described in detail.
Fig. 1 is the concise and to the point sectional view from the steering axle device 1 of the top view one embodiment of the present invention of car body.With reference to Fig. 1, steering axle device 1 mainly comprises steering shaft 2, jack shaft 3, pinion shaft 4, rack shaft 5 and shell 6.
Function to steering axle device 1 simply describes, and utilizes the rotation torque (also claiming handling maneuver moment of torsion) of the handling maneuver parts such as steering wheel 7 transmission that link from the one end with steering shaft 2 (upper end), makes steering shaft 2 around its central rotation.With this rotating gang, jack shaft 3 and pinion shaft 4 rotate integratedly.The moment of torsion (rotation torque) that this rotation produces, when transmitting from pinion shaft 4 to rack shaft 5, is transformed to the sliding movement towards the width direction of car body.Therefore, can make the deflecting rollers such as tire 8 turn to.
In addition, in the following description, the direction (above-below direction of Fig. 1) that the central shaft of pinion shaft 4 is extended is as axial Z.Here, axially in fact Z tilts and upper downward-extension with respect to fore-and-aft direction.In addition, using the direction of the above-below direction quadrature with Fig. 1 as left and right directions Y and fore-and-aft direction X.Left and right directions Y is the left and right directions of the paper of Fig. 1, consistent with the width direction of above-mentioned car body.Fore-and-aft direction X is the fore-and-aft direction of steering axle device 1, car body, be in Fig. 1 with the direction of paper quadrature.In addition, in Fig. 1, the downside that paper downside is car body, the upside that paper upside is car body.
Steering shaft 2 is cylindric or cylindric that (be strictly speaking backwards upside) extends along the vertical direction.At the upper end of steering shaft 2 2A, above-mentioned handling maneuver parts 7 are installed.On the other hand, at the lower end of steering shaft 2 2B, the first free joint 9 is installed.Jack shaft 3 is cylindric or cylindric that (be strictly speaking backwards upside) extends along the vertical direction.At the upper end of jack shaft 3 3A, link and have the first free joint 9.On the other hand, at the lower end of jack shaft 3 3B, link and have the second free joint 10.
Pinion shaft 4 is cylindric or cylindric what axially Z extended.At axial one end (upper end) 4A of the pinion shaft 4 of Z, link and have the second free joint 10.On the other hand, the other end (lower end) 4B at pinion shaft 4 is provided with small gear 4C integratedly.Rack shaft 5 is longer along left and right directions Y, in the predetermined range of left and right directions Y, can slide along left and right directions Y.Rack shaft 5 compared with length direction midway (be here compared with length direction central authorities) to spread all over this mode compared with length direction, be formed with tooth bar 5A.Small gear 4C and tooth bar 5A engagement, thus form tooth bar and pinion gear mechanism (steering equipment).Linking and having pull bar 11 compared with length direction two ends 5B at rack shaft 5.Pull bar 11 links via link pin 12 and a side's of steering knuckle arm 13 end in the end with rack shaft 5 opposition sides.End the opposing party of steering knuckle arm 13 is provided with deflecting roller 8.
Therefore, if handling maneuver parts 7 are carried out to handling maneuver, make its rotation, steering shaft 2 is rotated around the axial rotating center along steering shaft 2 integratedly with handling maneuver parts 7.And the rotation torque of steering shaft 2 is passed to jack shaft 3 via the first free joint 9.And this rotation torque is passed to pinion shaft 4 and small gear 4C from jack shaft 3 via the second free joint 10.Like this, if make 7 rotations of handling maneuver parts, steering shaft 2, jack shaft 3, pinion shaft 4 and small gear 4C and handling maneuver parts 7 together rotate.And, being accompanied by the rotation of pinion shaft 4 and small gear 4C, rack shaft 5 is a certain Slideslip of Y to left and right direction.That is, pinion shaft 4 is as the input shaft performance function of tooth bar and pinion gear mechanism (steering equipment).With the slip interlock of rack shaft 5, the part linking with pull bar 11 in the steering knuckle arm 13 of deflecting roller 8 is towards the glide direction displacement of rack shaft 5.Follow in this, deflecting roller 8 turns to.
Here, near the 4A of the upper end of pinion shaft 4, be provided with along the demarcation strip 14 of radially (with the direction of axial Z quadrature) expansion of pinion shaft 4.Demarcation strip 14 is the panels (railway carriage panel) that form a part for car body, in Fig. 1, the inner space of car body is divided into two up and down.Here, by the upside of the inner space of car body (handling maneuver parts 7 sides) zone definitions, be car chamber 15, by the downside of the inner space of car body (deflecting roller 8 sides) zone definitions, be outside 16.Outside 16 is for example engine compartment, is that foreign matter (water etc.) from car body outer (such as road surface) is than the region that is easier to intrusion.On the contrary, car chamber 15 is to do one's utmost to suppress allotrylic region.In addition, car chamber 15 is not limited to the residing space of people in vehicle.Like this, demarcation strip 14 will be divided into car chamber 15 and outside 16 inside and outside car chamber 15.In addition, on demarcation strip 14, be formed with inserting hole 14A.Inserting hole 14A connects the space of demarcation strip 14 at thickness direction, from the thickness direction of demarcation strip 14, be viewed as circle.At inserting hole 14A, insert a part (upper end 4A side part) that is connected with pinion shaft 4.That is, pinion shaft 4 configures in the mode across car chamber 15 and outside 16.In other words, the upper end 4A of pinion shaft 4 is disposed at car chamber 15, and lower end 4B is disposed at outside 16.In addition, in Fig. 1, rack shaft 5 is disposed at outside 16.Like this, in the steering equipment being formed by pinion shaft 4 and rack shaft 5, the outside 16 that the lower end 4B side of pinion shaft 4 and rack shaft 5 are disposed at car chamber 15 (car chamber 15 is outer).In addition, steering shaft 2 and jack shaft 3 are disposed at car chamber 15.Here, using the face of the outside of demarcation strip 14 16 sides (lower surface of Fig. 1) as opposed faces 14B.In addition, using the periphery of the inserting hole 14A of the opposed faces 14B of demarcation strip 14 as peripheral portion 14C.
Shell 6 is whole for example hollow articlies of approximate T font, and takes in pinion shaft 4 and rack shaft 5.Shell 6 is disposed at outside 16.Shell 6 comprises the pinion stand 17 that Z extends vertically and the rack housing 18 extending along left and right directions Y.Pinion stand 17 and rack housing 18 can be integrally formed, and also can cut apart.
Pinion stand 17 comprises the 17A of first portion of the upside that covers pinion shaft 4 (except small gear 4C) and covers the second portion 17B of the downside of small gear 4C.The 17A of first portion and second portion 17B are hollow articlies, and the 17A of first portion is less than second portion 17B at left and right directions Y.Here, using the inner space of the 17A of first portion as the first space 19.The first space 19 is cylindric that Z extends vertically, and Z connects the upper end 17C of pinion stand 17 vertically.That is, pinion stand 17 (17A of first portion) has opening 17D at upper end 17C.The peripheral portion 17E (upper-end surface of the 17A of first portion) of the opening 17D of pinion stand 17 (17A of first portion) is with respect to the peripheral portion 14C of the inserting hole 14A of the opposed faces 14B of demarcation strip 14, in the mode of devices spaced apart, from below, configures opposed to each other.In addition, the outer circumferential face mark reference character " 17F " to pinion stand 17 (17A of first portion).
The 17A of first portion of pinion stand 17 takes in pinion shaft 4 in the first space 19.Pinion shaft 4 is outstanding to upside (handling maneuver parts 7 sides) from the opening 17D of the 17A of first portion.That is, opening 17D makes a part for pinion shaft 4 expose towards car chamber 15 sides.And as mentioned above, the upper end 4A of pinion shaft 4 is disposed at car chamber 15.Like this, pinion shaft 4 is inserted through opening 17D and inserting hole 14A, extends to car chamber 15 always.
On the other hand, using the inner space of second portion 17B as second space 20.Second space 20 is that Z extends vertically, diameter is than large cylindric in the first space 19.At second space 20, taken in small gear 4C.The first space 19 and second space 20 (say exactly than lower end 4B and more lean on the downside of car body) and be communicated with near the 4B of the lower end of pinion shaft 4.Rack housing 18 has columned the 3rd space 18A extending along left and right directions Y.Rack shaft 5 integral body are accommodated in the 3rd space 18A.The 3rd space 18A connects the two end part 18B of rack housing 18.That is, at the two end part of rack housing 18 18B, be formed with opening 18C.At opening 18C, insert and be connected with pull bar 11.The 3rd space 18A is being communicated with second space 20 compared with length direction central authorities.
Fig. 2 is the side view of the coupling guard 21 that comprises of steering axle device 1, with section, shows a part.In detail, in Fig. 2, right half part is side view, and left-half is sectional view.
Here, the direction of the coupling guard 21 of Fig. 2 is consistent with the Fang Yuxiang in Fig. 1.Therefore, the above-below direction of Fig. 2 and the above-below direction of Fig. 1 (axially Z) are consistent.In addition, the left and right directions of Fig. 2 is consistent with the left and right directions Y of Fig. 1.In addition, the direction that is orthogonal to paper of Fig. 2 and the fore-and-aft direction X of Fig. 1 are consistent.The upside of Fig. 2 is handling maneuver parts 7 sides (upside of car body) of Fig. 1.In addition, the downside of Fig. 2 is deflecting roller 8 sides (downside of car body) of Fig. 1.
Below, with reference to Fig. 1 and Fig. 2, describe.First with reference to Fig. 1, between the opening 17D of pinion stand 17 and the inserting hole 14A of demarcation strip 14, be provided with coupling guard 21.Detailed structure aftermentioned, coupling guard 21 is by the peripheral portion 14C of the inserting hole 14A of demarcation strip 14 is sealed, thereby prevents that the foreign matters such as dust, water from invading car chambers 15 via inserting hole 14A from outside 16.
With reference to Fig. 2, coupling guard 21 comprises the ring-shaped member of pedestal 22, stretchable layer 23, sealing layer 24 and reinforced layer 25.At the hollow space of pedestal 22, insert logical pinion stand 17 and pinion shaft 4 (with reference to Fig. 4 described later).Pedestal 22 comprises a portion 26 and lip part 27.Fig. 3 is arranged as coupling guard 21, pinion shaft 4 and pinion stand 17 exploded perspective view of coaxial shape.
Below, with reference to Fig. 1, Fig. 2 and Fig. 3, describe.Here, the axial Z of the pinion shaft 4 of Fig. 3 and the axial Z of Fig. 2 are consistent.The nearby side of the axial Z of Fig. 3 is the upside of Fig. 2.In addition, using the sense of rotation of pinion shaft 4 as circumferential C, radially (direction vertical with axial Z) mark reference character " R " to pinion shaft 4.In Fig. 3, pedestal 22, stretchable layer 23, sealing layer 24 and reinforced layer 25 are arranged as coaxial shape (on the axial Z of pinion shaft 4), if their assemblings are become to the state shown in Fig. 2.
With reference to Fig. 2 and Fig. 3, cylinder portion 26 vertically Z extends.In cylinder portion 26, an end (upper end portion) the mark reference character " 26A " to axial Z, to the other end of axial Z (underpart) mark reference character " 26B ".In addition, the inner peripheral surface 26C of cylinder portion 26 is viewed as toroidal from axial Z.In addition, the outer circumferential face mark reference character " 26D " to cylinder portion 26.The 26E two end part, inner space (26A, 26B) of being divided by inner peripheral surface 26C connect cylinder portion 26.
Lip part 27 is the cirque body around cylinder portion 26 along the circumferential C around (being accommodated in the inner space 26E's of a portion 26) pinion shaft 4.In the both ends of the surface of the axial Z of lip part 27, by the larger face that can see in Fig. 3 (in Fig. 2, axially the face of the upside of Z) as upper surface 27A, using the opposing party's's (contrary side) face as lower surface 27B.Upper surface 27A radially R is smooth.With reference to Fig. 2, the end (peripheral portion) in the outside of the radially R of upper surface 27A, is formed with first rib 27C in the circumferential whole region of C.In addition, the end (inner edge portion) in the inner side of the radially R of upper surface 27A, is formed with second rib 27D in the circumferential whole region of C.First rib 27C and second rib 27D are upwards side-prominent.In addition, the inner peripheral surface 27E of lip part 27 is viewed as toroidal from axial Z.The inner peripheral surface diameter of inner peripheral surface 27E and second rib 27D is identical and form as one.Lip part 27 is connected with the upper end portion 26A of cylinder portion 26 at lower surface 27B.The inner peripheral surface 27E of lip part 27 and the inner peripheral surface 26C of cylinder portion 26 are arranged as coaxial shape, and diameter is less than inner peripheral surface 26C.Therefore, in lip part 27 and the attachment portion of cylinder portion 26, be formed with step 28.In addition, the lower surface 27B of lip part 27 and the outer circumferential face 26D of cylinder portion 26 link by strengthening rib 29, and above-mentioned strengthening rib 29 is formed with a plurality of in the mode circumferentially the complete cycle of C is arranged.Strengthening rib 29 is towards the lip part 27 sides triangle that radially R expands from outer circumferential face 26D.
With reference to Fig. 3, stretchable layer 23 is circular that Z extends vertically, by foaminess polyurethane foam etc., is formed.Stretchable layer 23 can resiliently deformable, and Z is flexible at least vertically.Using larger faces in the both ends of the surface of the axial Z of stretchable layer 23, that can see in Fig. 3 (face of the upside in Fig. 2) as upper surface 23A, using the opposing party's's (contrary side) face as lower surface 23B.Upper surface 23A and lower surface 23B radially R are smooth.Inner peripheral surface mark reference character " 23C " to stretchable layer 23.In addition, the outer circumferential face mark reference character " 23D " to stretchable layer 23.
Sealing layer 24 is that Z has the elastic annular body being formed by neoprene etc. of thickness vertically.Thereby sealing layer 24 is pressed against plane can be close to.Using larger faces in the both ends of the surface of the axial Z of sealing layer 24, that can see in Fig. 3 (face of the upside in Fig. 2) as upper surface 24A, using the opposing party's's (contrary side) face as lower surface 24B.Upper surface 24A and lower surface 24B radially R are smooth.Inner peripheral surface mark reference character " 24C " to sealing layer 24.In addition, the outer circumferential face mark reference character " 24D " to sealing layer 24.
Reinforced layer 25 is that Z has the cirque body of thickness vertically.Reinforced layer 25 is the hard layers that used the material (polypropylene etc.) that hardness ratio sealing layer 24 is high.Using larger faces in the both ends of the surface of the axial Z of reinforced layer 25, that can see in Fig. 3 (face of the upside in Fig. 2) as upper surface 25A, using the opposing party's's (contrary side) face as lower surface 25B.Upper surface 25A and lower surface 25B radially R are smooth.End (inner edge portion) in the inner side of the radially R of the upper surface 25A of reinforced layer 25, is formed with guide portion 30 in the circumferential whole region of C.Guide portion 30 forms the tubular (cylindric) identical with this interior perimembranous diameter, and integrated with reinforced layer 25.That is, guide portion 30 and reinforced layer 25 are formed as one by identical material (material that hardness is at least high than sealing layer 24).Thus, reduce components number, so can reduce the cost of coupling guard 21.
With reference to Fig. 2, guide portion 30 is Z and extending to upside vertically.Strictly speaking, guide portion 30 is extended and with respect to axial Z and for example, towards the inner side inclination predetermined angular of R (3 degree) radially towards upside.Like this, guide portion 30 forms the upside taper of undergauge gradually towards axial Z.Guide portion 30 forms roughly the same thickness with reinforced layer 25.In addition, the inner peripheral surface 25C of the inner peripheral surface of guide portion 30 and reinforced layer 25 is integrated.Therefore, the inner peripheral surface 25C of reinforced layer 25 forms the upside taper of undergauge gradually towards axial Z.In addition, the upper side end at the axial Z of guide portion 30 is formed with chamfering 30A to spread all over the mode of the complete cycle of circumferential C.Chamfering 30A is that the outer circumferential face 30C by the upper-end surface 30B to guide portion 30 and guide portion 30 carries out chamfering (being C chamfering) here and forms.
Next, the structure of coupling guard 21 is described.The figure of the state that as mentioned above, Fig. 2 has meaned each component combination of Fig. 3.Stretchable layer 23 so that lower surface 23B towards the mode of the upper surface 27A of the lip part 27 of pedestal 22, arrange.Under this state, the inner peripheral surface 23C of stretchable layer 23 contacts to spread all over the mode of complete cycle and the second rib 27D of lip part 27 of circumferential C.In addition, the outer circumferential face 23D of stretchable layer 23 contacts to spread all over the mode of complete cycle and the first rib 27C of lip part 27 of circumferential C.That is, stretchable layer 23 is pressed between first rib 27C and second rib 27D, and contacts with the upper surface 27A of lip part 27.Thus, stretchable layer 23 is fixed with coaxial shape with respect to lip part 27.In addition,, for stretchable layer 23 is firmly fixing with respect to lip part 27, can between stretchable layer 23 and lip part 27, clamp tackiness agent.In addition, stretchable layer 23 seals with the anastomosis part of lip part 27.
Reinforced layer 25 fixing (bonding) is in the upper surface 23A of stretchable layer 23.Now, the whole region of the lower surface 25B of reinforced layer 25 contacts with the upper surface 23A face of stretchable layer 23.In Fig. 2, the inner peripheral surface 25C of reinforced layer 25 is positioned at than the inner peripheral surface 23C of stretchable layer 23 and more leans on the radially position in the outside of R.In addition, reinforced layer 25 is sealed with the anastomosis part of stretchable layer 23.Sealing layer 24 fixing (bonding) is in the upper surface 25A of reinforced layer 25.The whole region of the lower surface 24B of sealing layer 24 contacts with the upper surface 25A face of reinforced layer 25.And, the inner peripheral surface 24C of sealing layer 24 with respect to the outer circumferential face 30C of guide portion 30 with the mode face contact from radially the outside of R spreads all over complete cycle.That is, guide portion 30 arranges along the inner peripheral surface 24C (interior perimembranous) of sealing layer 24, more outstanding towards top than the upper surface 24A of sealing layer 24.In addition, sealing layer 24 is sealed with the anastomosis part of reinforced layer 25.
Like this, the coupling guard 21 consisting of the pedestal 22, stretchable layer 23, sealing layer 24 and the reinforced layer 25 that are all ring bodies is hollow parts that integral body has approximate columned inner space.In the inner space of coupling guard 21, using the part of the more top side of the lower surface 27B than lip part 27 (step 28) as upside space 21A.In addition, in the inner space of coupling guard 21, using the lower surface 27B than lip part 27 (step 28) more on the lower the part of side as lower side space 21B.Under this state, lower side space 21B represents the part identical with the inner space 26E of cylinder portion 26.
Fig. 4 means the sectional view at main position of the steering axle device 1 of the state before coupling guard 21 is assembled in to demarcation strip 14.Below, with reference to Fig. 1～Fig. 3 and Fig. 4, describe.Next, to coupling guard 21 being assembled in to car body (demarcation strip 14), describe.
With reference to Fig. 4, first, coupling guard 21 so that the underpart 26B of cylinder portion 26 towards the state of downside with respect to the outer embedding of pinion stand 17.In detail, the upper end 17C side of pinion stand 17 is pressed into from below with respect to the lower side space 21B of coupling guard 21.Under this state, in pinion stand 17, outer circumferential face 17F contacts with the inner peripheral surface 26C face of cylinder portion 26, upper end 17C from below with respect to lower surface 27B (step 28) butt of lip part 27.Thus, pinion stand 17 is fixed with respect to coupling guard 21 (being the cylinder portion 26 of pedestal 22 in detail).In the upper end of pinion stand 17,17C is formed with opening 17D, so cylinder portion 26 becomes the state chimeric with respect to the opening 17D of pinion stand 17.Become the state that pinion shaft 4 in pinion stand 17 is inserted through a portion 26.
As mentioned above, pinion shaft 4 exposes towards the upside of car body from the opening 17D of pinion stand 17.In the inside of coupling guard 21, upside space 21A is continuous from upside with respect to lower side space 21B.Therefore the part of, exposing from pinion stand 17 in pinion shaft 4 (being made as exposed portions serve 4D) is incorporated in the 21A of upside space.
Next, so that the upper end 4A of pinion shaft 4 inserts pinion shaft 4 the inserting hole 14A of demarcation strip 14 towards the state of upside.Like this, in pinion shaft 4, than the part (part of upper end 4A side) that is incorporated in the more top side of part of upside space 21A, become the state of the inserting hole 14A that is inserted through above-mentioned demarcation strip 14.In the coupling guard 21 of this state, guide portion 30 is the most outstanding towards demarcation strip 14 sides (that is, more leaning on demarcation strip 14 sides than sealing layer 24).In addition, under this state, the upper surface 27A of lip part 27 and the upper surface 23A of stretchable layer 23 configure from below in the mode of devices spaced apart opposed to each other with respect to the opposed faces 14B of demarcation strip 14 and peripheral portion 14C.Hence one can see that, and stretchable layer 23 is arranged on and opposed of demarcation strip 14 (upper surface 27A).In addition, known sealing layer 24 is arranged in stretchable layer 23 and opposed of demarcation strip 14 (upper surface 23A).
Fig. 5 means the sectional view at main position of steering axle device 1 that coupling guard 21 is assembled into the state of demarcation strip 14.Below, with reference to Fig. 1～Fig. 4 and Fig. 5, describe.From the state of Fig. 4, make pinion stand 17 and coupling guard 21 increase and close demarcation strip 14.Like this, in coupling guard 21, first guide portion 30 contacts with the opposed faces 14B of demarcation strip 14.Under this state, worker, guide portion 30 is inserted to the mode of the inserting hole 14A of demarcation strip 14 from below, positions coupling guard 21 at fore-and-aft direction X and left and right directions Y respectively with respect to demarcation strip 14.Here, as mentioned above, guide portion 30 is outstanding towards the upside (demarcation strip 14 sides) of car body.Worker's visualization guide portion 30 that coupling guard 21 is assembled with respect to demarcation strip 14 is inserted into the inserting hole 14A of demarcation strip 14, thereby can confirm that coupling guard 21 correctly locates with respect to demarcation strip 14.In addition, guide portion 30 is formed by the high material of hardness ratio sealing layer 24.Therefore,, even if guide portion 30 is pressed against the peripheral portion 14C of inserting hole 14A, also can be inserted through inserting hole 14A and can be crooked.Thus, guide portion 30 can be located coupling guard 21 with respect to demarcation strip 14 reliably.In addition, the external diameter of the outer circumferential face 30C of guide portion 30 is set as slightly less so that guide portion 30 can be inserted into inserting hole 14A than the external diameter of inserting hole 14A.Therefore, guide portion 30 is inserted in to inserting hole 14A.This insertion can successfully be carried out by being arranged at taper and the chamfering 30A of guide portion 30.
Next, the state that is inserted into inserting hole 14A from guide portion 30, make further side shifting upward of pinion stand 17.Thus, coupling guard 21 is assembled with correct posture in the correct position of demarcation strip 14.Thus, do not have unexpected masterpiece for sealing layer 24, sealing layer 24 can be close to the posture parallel with demarcation strip 14 and peripheral portion 14C.Thus, can prevent that the sealing layer 24 of being close at the peripheral portion 14C of the inserting hole 14A with demarcation strip 14 from producing fold.Consequently, coupling guard 21 is installed on demarcation strip 14 to guarantee the state of sealing.
And, between sealing layer 24 and stretchable layer 23, be provided with the reinforced layer 25 that hardness ratio sealing layer 24 is high.Therefore, at sealing layer 24, from oblique side, be pressed against the peripheral portion 14C of inserting hole 14A and producing friction between sealing layer 24 and peripheral portion 14C, the shape of sealing layer 24 is because reinforced layer 25 also can keep smooth.That is, the posture of sealing layer 24 is reinforced that layer 25 is strengthened and more stable.Therefore, can prevent that sealing layer 24 from producing fold.
If make further side shifting upward of pinion stand 17 after upper surface 24A contacts with peripheral portion 14C, stretchable layer 23 is separated plate 14 and lip part 27 is clamped and shrink at axial Z.That is, stretchable layer 23 is compressed between demarcation strip 14 and lip part 27.With reference to Fig. 5, if pinion stand 17 arrives the assembling position (position that the upper end 4A of pinion shaft 4 can be connected with the second free joint 10) of the regulation shown in Fig. 5, pinion stand 17 finishes with respect to the assembling of car body, and coupling guard 21 also finishes with respect to the assembling of demarcation strip 14.In being assembled in the coupling guard 21 of demarcation strip 14, stretchable layer 23 is compressed to the compressive state (state shown in Fig. 5) of regulation.Therefore, the stretchable layer 23 of sealing layer 24 confined states is pressed towards the peripheral portion 14C of demarcation strip 14, becomes to spread all over the state that the mode of the complete cycle of circumferential C (with reference to Fig. 3) is close to respect to peripheral portion 14C.Therefore, even if the posture of coupling guard 21 departs from slightly, by stretchable layer 23, be out of shape, also can absorb the departing from of posture of coupling guard 21, so can prevent that thus sealing layer 24 from producing folds.In addition, sealing layer 24 is formed by elastomer as mentioned above, so in the situation that the peripheral portion 14C of demarcation strip 14 exist concavo-convex, also can be concavo-convex and guarantee sealing along with this.In addition, under this state, pinion shaft 4 between the inserting hole 14A of demarcation strip 14 and the opening 17D of pinion stand 17, by lip part 27 (pedestal 22), stretchable layer 23, sealing layer 24 and reinforced layer 25 around.Between the opening 17D (being peripheral portion 17E strictly speaking) of the inserting hole 14A of demarcation strip 14 (being peripheral portion 14C strictly speaking) and pinion stand 17, by lip part 27 (pedestal 22), stretchable layer 23, sealing layer 24 and reinforced layer 25, sealed.In addition, as mentioned above, pinion stand 17 is pressed in cylinder portion 26.That is, coupling guard 21 seamlessly links the opening 17D of pinion stand 17 with the inserting hole 14A that is formed at demarcation strip 14.In other words, the opening 17D of the exposed portions serve 4D of pinion shaft 4 and pinion stand 17 is blocked and becomes the state being communicated with car chamber 15 sides from outside 16 by coupling guard 21.Therefore, can prevent from being present in outside 16 water, dust etc. and invade car chamber 15 via the inserting hole 14A of demarcation strip 14.Like this, by the present invention, can realize the sealing improving between coupling guard 21 and demarcation strip 14.
Vehicle travels to be assembled with like this state of coupling guard 21.When Vehicle Driving Cycle, from deflecting roller 8 to tooth bar and pinion gear mechanism (steering equipment) transmitting vibrations (with reference to Fig. 1).Therefore the shell 6, directly being vibrated from deflecting roller 8 and pinion shaft 4 and car body (demarcation strip 14) vibrate respectively.Therefore, pinion stand 17 changes according to vibration with the distance A of demarcation strip 14.As mentioned above, what stretchable layer 23 adopted is the material that stretchability is high, so can stretch along with this vibration.Therefore, between the upper surface 24A of sealing layer 24 and the peripheral portion 14C of demarcation strip 14, do not produce gap, can guarantee the encapsulation of sealing layer 24 and peripheral portion 14C.In addition, guide portion 30 is inserted into inserting hole 14A, so even if be subject to this vibration, coupling guard 21 yet can not depart from and depart from from inserting hole 14A along fore-and-aft direction X and left and right directions Y from the position of regulation.Therefore the face (anastomosis part) that, coupling guard 21 and demarcation strip 14 can be close to and the profile of coupling guard 21 are designed to respectively inferior limit.
The present invention is not limited to mode of execution described above, in the scope of recording, can carry out various changes in claim.For example, reinforced layer 25 and guide portion 30 can independently arrange.In this case, can, according to Environmental Conditions, change respectively the material of reinforced layer 25 and the material of guide portion 30.
In addition, can be also the structure that coupling guard 21 does not comprise reinforced layer 25.In this case, can be with more low-cost formation coupling guard 21.In addition, reinforced layer 25 can be formed by metal.In this case, the hardness ratio resin of reinforced layer 25 is high.Therefore, reinforced layer 25 can more effectively suppress the sealing layer 24 generation folds relevant to the location of coupling guard 21 and demarcation strip 14.
In addition, guide portion 30 can be formed by metal.In this case, guide portion 30 is subject to external force and is difficult to distortion, with respect to inserting hole 14A, locates more reliably.Certainly, reinforced layer 25 and guide portion 30 can be also the metals being integrally formed.
In addition, as embodiment described above, there is the situation (with reference to Fig. 5) of demarcation strip 14 and cylinder portion 26 quadratures, also have non-orthogonal situation.For example, exist cylinder portion 26 with respect to demarcation strip 14, tilt and extend situation about configuring.In this case, lip part 27 can arrange obliquely with respect to axially (with the intersecting angle beyond 90 degree) of cylinder portion 26.In this case, if so that the upper surface 27A of lip part 27 mode parallel with respect to the opposed faces 14B of demarcation strip 14 is assembled in demarcation strip 14 by coupling guard 21, can guarantee the sealing between sealing layer 24 and peripheral portion 14C.
In addition, guide portion 30 can be pressed into inserting hole 14A.In this case, the inner peripheral surface 14D of the outer circumferential face 30C of guide portion 30 and the inserting hole 14A of demarcation strip 14 is close to.Therefore, coupling guard 21 can effective sealing pinion stand 17 and demarcation strip 14.
In addition, coupling guard 21 of the present invention is not defined as for pinion shaft 4, but can be applied to the arbitrary position (for example, jack shaft 3 being inserted through to this inserting hole part in the situation of inserting hole of plate-shaped member of car body side) of steering axle device 1.
Claims (4)
1. a coupling guard,
To being disposed at shell that the input shaft of the steering equipment of car outdoor takes in, be formed with the opening that the part of described input shaft is exposed towards passenger compartment side, at the inside and outside demarcation strip of separating car chamber, be formed with the inserting hole passing for a part for described input shaft, described coupling guard is for linking described opening and described inserting hole, described coupling guard is characterised in that, comprising:
Pedestal, this pedestal comprises the lip part of a portion and ring-type, the opening of described cylinder portion and described shell is chimeric, and described input shaft is through this portion, described lip part along the circumferential hoop around described input shaft around described cylinder portion and with respect to the peripheral portion arranged opposite of the described inserting hole of described demarcation strip;
The stretchable layer of ring-type, this stretchable layer be arranged at described lip part with opposed of described demarcation strip, and with compressed state between described demarcation strip and described lip part around described input shaft;
The sealing layer of ring-type, sealing layer be arranged at described stretchable layer with opposed of described demarcation strip, and with the described stretchable layer of confined state press on the peripheral portion of described inserting hole and the state that spreads all over complete cycle and be close to this peripheral portion around described input shaft; And
The guide portion of tubular, this guide portion is along the interior perimembranous setting of described sealing layer, more side-prominent towards described demarcation strip than described sealing layer, and is inserted in the inserting hole of described demarcation strip.
2. coupling guard according to claim 1, is characterized in that,
Described in the hardness ratio of described guide portion, the hardness of sealing layer is high.
3. coupling guard according to claim 1 and 2, is characterized in that,
Between described sealing layer and described stretchable layer, be provided with the reinforced layer that seals floor height described in hardness ratio.
4. coupling guard according to claim 3, is characterized in that,
Described guide portion and described reinforced layer are integrally formed by identical material.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013098740A JP6156687B2 (en) | 2013-05-08 | 2013-05-08 | Joint cover |
| JP2013-098740 | 2013-05-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104141797A true CN104141797A (en) | 2014-11-12 |
| CN104141797B CN104141797B (en) | 2017-11-07 |
Family
ID=51851068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410189290.9A Expired - Fee Related CN104141797B (en) | 2013-05-08 | 2014-05-06 | Coupling guard |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6156687B2 (en) |
| CN (1) | CN104141797B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108953610A (en) * | 2018-08-30 | 2018-12-07 | 安徽江淮汽车集团股份有限公司 | A kind of diverter sealing mechanism |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6570313B2 (en) * | 2015-05-22 | 2019-09-04 | カルソニックカンセイ株式会社 | Electromagnetic clutch and gas compressor for gas compressor |
| WO2016189973A1 (en) * | 2015-05-22 | 2016-12-01 | カルソニックカンセイ株式会社 | Electromagnetic clutch for gas compressor, and gas compressor |
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| JPS5945270A (en) * | 1982-09-07 | 1984-03-14 | Nissan Motor Co Ltd | Sealing structure for air outlet in defroster grill |
| US5618058A (en) * | 1995-03-22 | 1997-04-08 | Daewoo Electronics Co., Ltd. | Collapsible steering column apparatus of a motor vehicle |
| CN1223615A (en) * | 1996-07-26 | 1999-07-21 | 凯萨德工程公司 | Sound insulating layer with integral boot |
| US6070928A (en) * | 1997-01-17 | 2000-06-06 | Cascade Engineering, Inc. | Mat with integrally molded door |
| CN1910076A (en) * | 2004-01-15 | 2007-02-07 | 日本精工株式会社 | Dust cover for steering shaft |
| CN201023448Y (en) * | 2007-03-31 | 2008-02-20 | 奇瑞汽车有限公司 | Automobile steering machine dust cover |
| CN201824966U (en) * | 2010-09-29 | 2011-05-11 | 奇瑞汽车股份有限公司 | Steering sheath |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006001504A (en) * | 2004-06-21 | 2006-01-05 | Nsk Ltd | Sealing device for steering device |
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2013
- 2013-05-08 JP JP2013098740A patent/JP6156687B2/en not_active Expired - Fee Related
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2014
- 2014-05-06 CN CN201410189290.9A patent/CN104141797B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5945270A (en) * | 1982-09-07 | 1984-03-14 | Nissan Motor Co Ltd | Sealing structure for air outlet in defroster grill |
| US5618058A (en) * | 1995-03-22 | 1997-04-08 | Daewoo Electronics Co., Ltd. | Collapsible steering column apparatus of a motor vehicle |
| CN1223615A (en) * | 1996-07-26 | 1999-07-21 | 凯萨德工程公司 | Sound insulating layer with integral boot |
| US6070928A (en) * | 1997-01-17 | 2000-06-06 | Cascade Engineering, Inc. | Mat with integrally molded door |
| CN1910076A (en) * | 2004-01-15 | 2007-02-07 | 日本精工株式会社 | Dust cover for steering shaft |
| CN201023448Y (en) * | 2007-03-31 | 2008-02-20 | 奇瑞汽车有限公司 | Automobile steering machine dust cover |
| CN201824966U (en) * | 2010-09-29 | 2011-05-11 | 奇瑞汽车股份有限公司 | Steering sheath |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108953610A (en) * | 2018-08-30 | 2018-12-07 | 安徽江淮汽车集团股份有限公司 | A kind of diverter sealing mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6156687B2 (en) | 2017-07-05 |
| CN104141797B (en) | 2017-11-07 |
| JP2014218164A (en) | 2014-11-20 |
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