CN101549656A - Electrically operated seat slide apparatus - Google Patents
Electrically operated seat slide apparatus Download PDFInfo
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- CN101549656A CN101549656A CNA2009101302309A CN200910130230A CN101549656A CN 101549656 A CN101549656 A CN 101549656A CN A2009101302309 A CNA2009101302309 A CN A2009101302309A CN 200910130230 A CN200910130230 A CN 200910130230A CN 101549656 A CN101549656 A CN 101549656A
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- right track
- seat slide
- slide apparatus
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Abstract
An electrically operated seat slide apparatus includes a lower rail fixed to a floor of a vehicle body, and an upper rail slidably disposed to the lower rail. A seat is connected to the upper rail. A screw shaft is disposed inside the upper rail. A nut is threadedly connected to the screw shaft and connected to the lower rail. A motor is disposed to side of the upper rail. A gear box is fixed to the upper rail to transmit a rotation of the motor to the screw shaft. Additionally, first and second plates are provided for allowing an impact load applied to the upper rail to be directly transmitted to the screw shaft so as to prevent the impact load from being transmitted through the gear box to the screw shaft, and for setting a moving range of the nut.
Description
Technical field
The present invention relates to electrically operated seat slide apparatus, relate in particular to have and be used for directly will being applied to that the impact of getting on the right track is passed to lower railway and the seat slide apparatus that is not passed to the device of gear case.
Background technology
Seat slide apparatus is divided into the seat slide apparatus of operation manually and electrically operated seat slide apparatus.Manually Cao Zuo seat slide apparatus is arranged to along the manually mobile seat of front-rear direction, and the rotational force of electrically operated seat slide apparatus by electro-motor moves seat along front-rear direction.
Japanese Patent openly discloses a kind of in the electrically operated seat slide apparatus among the No.2001-239861 temporarily.In this electrically operated seat slide apparatus, getting on the right track is arranged in the lower railway that is fixed to vehicle body, and seat is connected to this and gets on the right track.In screw shaft can be rotatably set in and gets on the right track.It is parallel that in the associating of getting on the right track like this, lower railway and screw shaft two are arranged in and arranged on left and right sides respectively.Screw shaft is connected to the electro-motor that is arranged on a place in getting on the right track, relative to each other synchronously to be driven rotatably.Nut part threadably is connected to each screw shaft, and further is connected to lower railway.Retainer near the position of the opposed end of screw shaft by being connected to each screw shaft by embedding real (caulk), mobile with the restriction nut part.
Get on the right track in order to allow top load to be applied in the process that is passed to lower railway in collision by screw shaft, two flanges are fixed on the screw shaft and a bit of distance of being separated by each other, and the load receiving-member is connected to and gets on the right track and be inserted between two flanges.This load receiving-member is engaged in the cooperation opening that is formed in getting on the right track, and is fixed to wherein by promotion nut (pushnut) etc.
Japanese Patent discloses No.2006-335153 temporarily and discloses another kind of electrically operated seat slide apparatus, wherein the top of rail side retainer is bifurcated, to form two stop member panel parts, it is engaged in respectively in the permanent opening that gets on the right track, and real in fix in position by embedding.
At Japanese Patent openly among the No.9-123807 another kind of electrically operated seat slide apparatus is disclosed temporarily.In this electrically operated seat slide apparatus, getting on the right track is arranged in the lower railway that is fixed to vehicle body, and seat is connected to this and gets on the right track.Motor is arranged to and gets on the right track, synchronously to drive two screw shafts that lay respectively at the seat left and right side rotatably.Two nut parts that are connected to lower railway threadably are connected to the left and right side of screw shaft respectively.In addition, two retainers are connected to each screw shaft in its position near opposed end by the real screw shaft of embedding, with relatively moving of retaining nut's parts.
Japanese Patent discloses No.10-203209 temporarily and discloses another kind of electrically operated seat slide apparatus, and wherein damper is arranged on the guide screw and is positioned on the nut part side.This damper is inserted between damper retaining part and the nut part side plate.When nut part bumped on the nut part side plate, the nut part side plate relatively rotated to damper, and making does not have torsion to be applied to damper.
Summary of the invention
Yet, Japanese Patent temporarily openly among the No.2001-239861 disclosed electrically operated seat slide apparatus following problem is arranged: when impact load is applied to when getting on the right track, be fixed to the load receiving-member that gets on the right track and be pulled on the flange, therefore be fixed to the load receiving-member pressurized on the axis direction that gets on the right track that gets on the right track.As a result, the crooked and worry from getting on the right track and breaking away from of load receiving-member is arranged.In addition, the defective that has is, causes number of parts to increase corresponding to the part that promotes nut.In addition, the part of screw shaft between gear case and two flanges born compression or tension force, and therefore the worry of screw shaft wrinkling distortion when being compressed is arranged.
In addition, Japanese Patent discloses the problem that disclosed electrically operated seat slide apparatus has among the No.2006-335153 temporarily and is, when the stop member panel of rail side retainer part was compressed to wrinkling distortion vertically, the rail side retainer was compressed and wrinkling distortion and bending.
In addition, Japanese Patent temporarily openly among the No.9-123807 disclosed electrically operated seat slide apparatus following problem is arranged: when nut part was run on the retainer, nut part was run into rotating retainer, made tension force be applied to retainer.
Japanese Patent temporarily openly No.10-203209 may solve the problems referred to above that Japanese Patent is openly run in the above-mentioned seat slide apparatus of No.9-123807 temporarily.Yet, in this seat slide apparatus, damper need be arranged to guide screw with damper retaining part and nut part side plate, increased the number of part thus.The increase of this number of parts has reduced the assembling processibility of seat slide apparatus.In addition, the electrically operated seat slide apparatus of even now is to need minification and expendable weight urgently, but be arranged in the structure such in getting on the right track it at guide screw and be difficult to the sectional area that reduces to get on the right track, this be because, since nut part must with by damper around mode be supported to lower railway, so be used for the parts of holding nut parts need be arranged on get on the right track in, so that nut part can be vertically and laterally moves, and be absorbed in along upper and lower track vertically and the dispersion on the size of horizontal direction.
Consider the problems referred to above, the object of the present invention is to provide a kind of improved electrically operated seat slide apparatus, by this electrically operated seat slide apparatus, allow to be applied to the impact load that gets on the right track and directly be passed to screw shaft, preventing that impact load is passed to screw shaft by gear case, and be used to set the moving range of nut.
Another object of the present invention is to provide a kind of improved electrically operated seat slide apparatus with rail side retainer, even described rail side retainer can wrinkling distortion under the situation of embedding reality yet and can be stood the crooked inertia that is produced by axial force, prevent the wrinkling distortion of screw shaft.
Another object of the present invention is to provide a kind of improved electrically operated seat slide apparatus, but its actv. overcomes the defective that runs in traditional electrically operated seat slide apparatus.
According to the present invention, a kind of electrically operated seat slide apparatus comprises lower railway, and it has the roughly cross-sectional plane of U-shaped, and is fixed to the floor of vehicle body; And get on the right track, it has roughly inverted U-shaped cross-sectional plane, and is mounted slidably to described lower railway, and seat is connected to described getting on the right track.Screw shaft is arranged in described the getting on the right track, and extends along the described length direction that gets on the right track.Be connected to described screw shaft nut thread, and be connected to described lower railway.Motor is arranged to the side that gets on the right track.Gear case is positioned at around the axis of described screw shaft, and is fixed to described getting on the right track, and is passed to described screw shaft with the rotation with described motor.In addition, first and second plates are arranged for and allow to be applied to the described impact load that gets on the right track and directly be passed to described screw shaft, preventing that described impact load is passed to described screw shaft by described gear case, and be used to set the moving range of described nut.
With reference to the accompanying drawings, from the following description, other purpose of the present invention and feature will be easy to understand.
Description of drawings
In the accompanying drawings, what run through institute's drawings attached is identical identical part and the element of Reference numeral representative:
Fig. 1 is the block diagram according to the structure around the nut of electrically operated seat slide apparatus of the present invention;
Fig. 2 is the imperfect longitudinal sectional view of the structure around the nut of electrically operated seat slide apparatus of Fig. 1;
Fig. 3 is the transverse sectional view of the structure around the nut of electrically operated seat slide apparatus of Fig. 1;
Fig. 4 is the longitudinal sectional view of the electrically operated seat slide apparatus of Fig. 1;
Fig. 5 is imperfect vertical explanatory cutaway view of operation of the electrically operated seat slide apparatus of displayed map 1;
Fig. 6 is the exploded perspective view of the electrically operated seat slide apparatus of Fig. 1; And
Fig. 7 is the necessary imperfect longitudinal sectional view partly of the electrically operated seat slide apparatus of displayed map 1.
The specific embodiment
With reference now to Fig. 1 to 7,, casehistory is according to the embodiment of electrically operated seat slide apparatus of the present invention.This electrically operated seat slide apparatus is installed on the vehicle body, on the vehicle body such as automobile.
As shown in the exploded perspective view of Fig. 6, this electrically operated seat slide apparatus comprises the lower railway 1 of the floor surface that is fixed to vehicle body.Getting on the right track 2 is arranged in the lower railway 1, sliding along 2 lengthwise (lengthwise) direction of getting on the right track.The seat (not shown) is connected to and gets on the right track 2.Screw shaft 3 is arranged on and gets on the right track in 2, and extends along 2 the longitudinally of getting on the right track.Nut 7 threadably is connected to screw shaft 3, and is connected to the inside part of lower railway 1.Electro-motor is arranged to and gets on the right track 2, with drive screw axle 3 rotatably.Gear case 6 be arranged on around the axis of screw shaft 3 or with the axis coaxle of screw shaft 3, the rotation with motor under the situation about reducing with the rotating speed at motor is passed to screw shaft 3.This gear case 6 is fixed to and gets on the right track 2.
Electrically operated seat slide apparatus shown in Fig. 6 is arranged on the left side of seat and each the side place in the right side, makes two electrically operated seat slide apparatus be provided with symmetrically, although do not illustrate.Therefore, the front portion of two electrically operated seat slide apparatus (or the right part part among Fig. 6) is connected to each other by the link (not shown).Motor (single-motor) is arranged to link, and has output shaft, this output shaft is connected to each the input shaft (not shown) in left side and the right side gear case 6, and this input shaft is arranged in the input cylinder 6a of each gear case 6, makes two screw shaft 3 drivings synchronized with each other rotatably.
As shown in Figure 7, lower railway has the roughly cross-sectional plane of U-shaped, its top is opening, and lower railway has bottom wall portion 1a, two sidewall sections 1b and two inner wall section 1c, described two sidewall sections 1b are combined as a whole with the opposite side portion of bottom wall portion 1a respectively, and extend upward at an upper portion thereof and curve inwardly, described two inner wall section 1c are combined as a whole with two sidewall sections 1b respectively, and extend downwards, each inner wall section 1c forms by the upper bend with sidewall sections 1b.
As shown in Figure 6, foot part 19,20 is connected to the opposite end portions of lower railway 1 respectively by bolt 15,16,17 and 18, and is connected to the body platform surface.Get on the right track and 2 have roughly inverted U-shaped cross-sectional plane, its underpart is an opening, and get on the right track and 2 have upper wall portion 2a, two sidewall sections 2b and two outer wall section 2c, described two sidewall sections 2b are combined as a whole with 2 the opposite side portion of getting on the right track respectively and extend downwards, described two outer wall section 2c are combined as a whole with the bottom part of two sidewall sections 2b respectively, and extend upward under bandy situation.Seat is connected to by four bolts 21 and gets on the right track 2.Getting on the right track 2 engages with lower railway 1, and 2 each the outer wall section 2c of wherein getting on the right track is inserted between the sidewall sections 1b and inner wall section 1c of lower railway 1, and making gets on the right track 2 can slide along the longitudinally of lower railway 1.
Four guides (no Reference numeral) are arranged on lower railway 1 and get on the right track between 2.Each guide all comprises the SDeflector 9 that is rotatably kept by retainer 8.As shown in Figure 6, two preceding guides are arranged on the left side and the place, right side of the leading section part of lower railway 1 respectively, and guide is arranged on the left side and the place, right side of the rearward end part of lower railway 1 respectively after two.The SDeflector 9 of each guide all can be rotatably set in the sidewall sections 1b of lower railway 1 and 2 the outer wall section 2c of getting on the right track between, as shown in Figure 7.
Screw shaft 3 gets on the right track 2 and rotatably be supported on and get on the right track in 2 by gear case 6 is fixed to.Particularly, screw shaft 3 rotatably is inserted between 2 two the opposing sidewalls part 2b of getting on the right track.As shown in Figure 6, the rearward end of gear case 6 is mounted to 2 the leading section part of getting on the right track, and wherein gear case 6 is connected to by two bolts 22 and gets on the right track 2.
With reference to Fig. 1 and 2 nut 7 structure on every side will be discussed.Nut 7 is connected to lower railway 1 by nut holding member 11 and elastic body 12.Nut holding member 11 has connecting bridge 11a and two retaining part 11b, this connecting bridge 11a is arranged in the lower railway 1 and with the diapire of lower railway 1 and engages, these two retaining part 11b and connecting bridge 11a form as one and extend upward from connecting bridge 11a, and retaining part 11b separates each other along the fore-and-aft direction of vehicle body.Among the retaining part 11b each all is formed with the first patchhole 11c, and screw shaft 3 inserts and passes this first patchhole 11c.Elastic body 12 forms cuboid, and is formed with the second patchhole 12a that extends along the length of elastic body 12, and screw shaft 3 is inserted among the second patchhole 12a.Elastic body 12 is formed with to the recess of its upper surface open or recess 12b, and is formed with two adapted spaces or perforation 12c, be positioned at recess 12b on the opposite side of the axis direction of the second patchhole 12a.Nut 7 is coupled among the recess 12b.Two retaining part 11b of nut holding member 11 insert respectively and are coupled to two adapted space 12c of elastic body 12 from the downside of elastic body 12.Elastic body 12 is not less than A60 by Shore hardness, and the rubber that preferably is not less than A70 forms.
Will be understood that in the time of collision happens, impact load is applied to and gets on the right track 2.In this, electrically operated seat slide apparatus of the present invention is provided with to impact and transmits device or install 13, prevent to be applied to get on the right track 2 impact load and be passed to screw shaft 3,2 directly be passed to screw shaft 3 from getting on the right track to allow to be applied to get on the right track 2 impact load by being connected to 2 the gear case 6 of getting on the right track.Shown in Figure 4 and 5, impact transfer device 13 and comprise reinforcement plate 4 and retainer 5, the main portion of this reinforcement plate 4 is arranged on and gets on the right track in 2 and be positioned to axis normal with screw shaft 3, and this retainer 5 is connected to screw shaft 3 in the position near reinforcement plate 4 or is installed on the screw shaft 3.This impact transfer device 13 is arranged on along the axis direction of screw shaft 3 and is positioned at two positions of elastic body 12 on the opposite side around the nut 7, make two impact transfer devices 13 be arranged on around the screw shaft 3, and be spaced apart from each other along the length of screw shaft 3.
The installing condition of each reinforcement plate 4 will be discussed with reference to figure 7.Reinforcement plate 4 core thereon is provided with upper process 4a, and opposite side portion is provided with corresponding lower process 4b under it.2 the upper wall portion 2a of getting on the right track is formed with upper cut 2f, and two relative sidewall sections 2b have formed lower cut 2g respectively in its underpart.Upper process 4a engages with upper cut 2f, and lower process 4b engages with lower cut 2g respectively.Pass two embedding real parts that upper process 4a that 2 the upper wall portion 2a of getting on the right track projects upwards is provided with the opposite side portion place that is positioned at upper process 4a and divide 4c.
For above-mentioned structure, elastic body 12 is movably between two reinforcement plates 4, makes two reinforcement plates 4 as the travel settings parts, is used to set the shift motion or the scope of nut 7 and elastic body 12.
Next the operation of electrically operated seat slide apparatus will be discussed.
In the time of the rotation of the output shaft of electro-motor, reduce the rotating speed of output shaft by the speed reduction gearing in left side and right side gear case 6, in this case, be passed to screw shaft 3 from the rotational force of motor, each in the screw shaft 3 all is positioned at and gets on the right track 2.Under the rotation of screw shaft 3, the nut 7 that is connected to lower railway 1 relatively moves in vehicle body forward or backward along screw shaft 3.Therefore, get on the right track and 2 in vehicle body, move forward or backward with respect to lower railway 1.Then, when any contacts in the reinforcement plate 4 at the end face of elastic body 12 and vehicle body front side and rear side place, 2 move by stop forward or backward of getting on the right track.What it is also noted that is, any contacts in the end face of elastic body 12 and the reinforcement plate 4, with at the movably retainer 2d, the 2e that are positioned at 2 the central part office of getting on the right track by guide (8,9) with before the static retainer 1d at the front or rear part place that is positioned at lower railway 1 contacts, get on the right track 2 move forward or backward of stop.In other words, set 2 the shift motion of getting on the right track by the elastic body 12 and reinforcement plate 4 position contacting at vehicle body front side and rear side place.
Be applied to along the direction towards vehicle body the place ahead under 2 the situation of getting on the right track in impact load under the situations such as vehicle collision, the reinforcement plate 4 that is positioned at place, vehicle body front side moves to the place ahead of vehicle body, and bumps on the retainer 5 that is being positioned at place, vehicle body front side, as shown in Figure 5.Therefore, impact load can not 2 directly be passed to and is connected to 2 the gear case 6 of getting on the right track from getting on the right track, prevent that thus gear case 6 from receiving impact load, this impact loading becomes pulling gear case 6 and owing to be applied to the impact load of gear case 6 gear case 6 is separated from screw shaft 3.At this moment, tension force is applied to screw shaft 3.Be applied to along the direction towards the vehicle body rear under 2 the situation of getting on the right track in impact load, the reinforcement plate 4 that is positioned at vehicle body rear side place bumps on the retainer 5 that is positioned at vehicle body rear side place.Therefore, can prevent from that impact load directly is passed to be connected to 2 the gear case 6 of getting on the right track, thereby avoid being passed to the worry that screw shaft 3 is compressed by gear case 6 under the situation of gear case 6 in impact load.At this moment, tension force is applied to screw shaft 3 equally.
In this embodiment, although rotational force is to be applied to the nut 7 that is screwed onto on the screw shaft 3 under the situation of screw shaft 3 rotations, the rotation of nut 7 is to be limited by the elastic body 12 that the side that is positioned at nut 7 is located.In addition, when under the situation of screw shaft 3 rotation, being used for when axially the power of travelling nut 7 is applied to nut 7, nut holding member 11 and lower railway 1 relatively move with moving synchronously of nut 7, come the axial opposite side of retention nut 7 to pass elastic body 12 because be by retaining part 11b.As a result, get on the right track and 2 move with respect to lower railway 1.
Because the side surface of elastic body 12 is not covered by metallic material, even getting on the right track in 2 and in 2 processes that move that get on the right track at elastic body 12, under the side surface 12d of elastic body 12 and situation that the inside face 2x of 2 two the sidewall sections 2b of getting on the right track contacts, can not produce incoherent noise yet, and prevent that moving resistance increases under the situation of sliding.In addition, screw shaft 3 only is inserted among the second patchhole 12a of the first patchhole 11c of retaining part 11b and elastic body 12, and nut 7 can move vertically and axially with respect to nut holding member 11.As a result, even the relative position of the situation lower nut holding member 11 that moves relative to getting on the right track at lower railway 1 and screw shaft 3 changes, this change also can by nut 7 with respect to nut holding member 11 vertically and move axially absorb.
Under the situation in the second patchhole 12a that screw shaft 3 is inserted into elastic body 12, only just can finish and be used for nut 7 and screw shaft 3 bonded assembly assembly operations by the nut 7 that is spirally connected, wherein nut 7 and nut holding member 11 have been engaged to this elastic body 12, thereby make stack-mounted processibility height.In addition, the rotation of nut 7 can be by elastic body 12 restrictions that are positioned at nut side place, so it passes elastic body covers nut 7 with metallic material side surface not needing in conventional art.In addition, because nut 7 is not coated with metallic material, thus have enough width dimensions between 2 the surperficial 2x of sidewall sections 2b of getting on the right track within it, to hold elastic body 12 betwixt.This width dimensions of 2 that can reduce widely to get on the right track obtains to be used for the small size of electrically operated seat slide apparatus thus.
In this embodiment, when high rotational force is applied to nut 7, be positioned at elastic body 12 distortion of the opposite side of nut 7; Yet the rotation of nut 7 is complementaryly by the inside face 2x restriction of 2 the sidewall sections 2b of getting on the right track, because the side surface of elastic body 12 is very close to the inside face 2x of 2 the sidewall sections 2b of getting on the right track.
In this embodiment, nut 7 moves along the axis of screw shaft 3, makes movably to contact with reinforcement plate 4 with elastic body 12 as the nut holding member 11 of single individuality with nut 7.In this operating process, because the end sections of elastic body 12 is between reinforcement plate 4 and nut holding member 11, so produce shock damping action.
Movably contact with reinforcement plate 4 with nut 7 as the elastic body 12 of single individuality, relax the impact of nut 7 thus, therefore not needing in conventional art setting individually has the reinforcement plate 4 of damping components, and has reduced the number of assembly, and has improved the stack-mounted processibility.In addition, reinforcement plate 4 is connected to and gets on the right track 2.The result, be arranged at the gear case 6 of the rotating speed that is used to reduce motor under the situation around the axis of screw shaft 3, can prevent that the impact in the vehicle collision process directly is applied to gear case 6 by screw shaft 3, this is different from traditional technology, and wherein reinforcement plate 4 is connected to screw shaft 3.
In this embodiment, elastic body 12 is formed by rubber.This rubber has the Shore hardness that is not less than A60, and this is the hardness that is suitable for elastic body 12, and the part that makes (elastic body 12) be positioned on the opposite side of nut can not easily be out of shape.In addition, when elastic body 12 contacts with reinforcement plate 4, can suppress elastomeric distortion effectively, thus reduced seat foremost with the dispersion of the stop position of rearmost end.
Though illustrated in this embodiment and illustrated gear case be arranged on screw shaft axis around or coaxial with screw shaft, but be to be understood that, gear case can be arranged to the axis away from screw shaft by this way, the output shaft and the screw shaft that are gear case are provided with in parallel with each other, and be connected to each other by a pair of spur gear, this is engaged with each other to spur gear, makes gear case can relatively move to screw shaft, and prevents that impact load is applied to screw shaft by gear case.In addition, travel settings parts or reinforcement plate can be connected to screw shaft, get on the right track and be not attached to.In addition, form though elastic body has illustrated and has been illustrated as by rubber, it also can be formed by the elastomeric material that is different from rubber.In addition, the adapted space of the retaining part 11b that is used for nut holding member 11 of elastic body 12 can form not the upper surface open to elastic body 12.
In this embodiment, reinforcement plate 4 has cylindrical portions may 4e, and the annular disc shape main body of itself and reinforcement plate 4 forms as one.Therefore, when be bonded on 2 the upper cut 2f of getting on the right track at upper process 4a in and after lower process 4b is bonded among the lower cut 2g respectively, get on the right track the part in 2 outsides when forming the embedding real part and divide 4c by down compressing being projected into of upper process 4a, the patchhole 4d that can prevent reinforcement plate 4 is collided vertically, and can prevent that reinforcement plate 4 is in the wrinkling distortion in the position of patchhole 4d.In addition, when being applied to, the impact load along the axis direction of screw shaft 3 gets on the right track 2 the time, because reinforcement plate 4 is provided with cylindrical portions may 4e integratedly and therefore has high bending strength, so can prevent reinforcement plate 4 bendings.This has improved the intensity of seat slide apparatus opposing impact load widely.
In this embodiment, the upper end of lower process 4b that is formed at the relative downside place of reinforcement plate 4 extends on the cross-sectional plane vertically near the position corresponding to the center of the 3rd patchhole 4d, and therefore, the length that is engaged in the lower process 4b among the lower cut 2g is big.Therefore, when the impact load along the axis direction of screw shaft 3 is applied to when getting on the right track on 2, even be pushed that reinforcement plate 4 can not be out of shape under the situation of the retainer 5 that is connected to screw shaft 3 being connected to 2 the reinforcement plate 4 of getting on the right track yet, further increased the intensity of seat slide apparatus opposing impact load thus.In addition, reinforcement plate 4 has high bending strength, therefore is difficult to bending.
In this embodiment, retainer 5 is arranged on the outside of two reinforcement plates 4 respectively, and nut 7 is inserted between these two reinforcement plates 4 along the direction of screw shaft 3.Therefore, when get on the right track 2 receive towards vehicle body the place ahead impact load the time, the reinforcement plate 4 that is positioned at the vehicle body front side contacts with retainer 5, makes tension force be applied to screw shaft 3.When get on the right track 2 receive towards the vehicle body rear impact load the time, the reinforcement plate 4 that is positioned at the vehicle body rear side contacts with retainer 5, makes tension force be applied to screw shaft 3.Therefore, can prevent that screw shaft 3 is compressed, make can not occur owing to compress the wrinkling distortion that causes, thereby improve the intensity of seat slide apparatus widely.In addition, two reinforcement plate 4 usefulness act on the shift motion of setting nut 7 or the travel settings parts of scope, therefore do not need independent travel settings parts are set, and have reduced the number of assembly thus.
In this embodiment, the cylindrical portions may 4e of reinforcement plate 4 is towards retainer 5 or relative with retainer 5, so compression connection makes reinforcement plate 4 effectively resist its bending to the retainer 5 of screw shaft 3.
Will be understood that and to adopt such structure that wherein the upper end of each in the lower process of reinforcement plate does not extend near the center of the patchhole 4d on the cross-sectional plane.In addition, be arranged on the outside of two reinforcement plates 4 respectively though illustrated and illustrate two retainers, described two reinforcement plates 4 are positioned at nut 7 respectively and are inserted into therebetween position, but retainer also can be arranged on the inboard of two reinforcement plates 4 respectively.In addition, can adopt such structure, wherein two reinforcement plates need not act on the travel settings parts of the shift motion of setting nut.In addition, can adopt such structure, wherein the cylindrical portions may 4e of reinforcement plate 4 is not towards retainer 5.
The content of the Japanese patent application No.2008-089414 that the Japanese patent application No.2008-089413 that on March 31st, 2008 submitted to and on March 31st, 2008 submit to is incorporated this paper into by reference here.
Although below with reference to some embodiment of the present invention and example the present invention has been described, the present invention is not limited to the above embodiments and example.Those skilled in the art can make amendment and change according to above-mentioned instruction the foregoing description and example.Scope of the present invention limits with reference to following claim.
Claims (13)
1. electrically operated seat slide apparatus, it comprises:
Lower railway, it has the roughly cross-sectional plane of U-shaped, and is fixed to the floor of vehicle body;
Get on the right track, it has roughly inverted U-shaped cross-sectional plane, and is mounted slidably to described lower railway, and described getting on the right track is connected with a seat;
Screw shaft, it is arranged in described the getting on the right track, and extends along the described length direction that gets on the right track;
Nut, it threadably is connected to described screw shaft, and is connected to described lower railway;
Motor, it is arranged on the side that gets on the right track;
Gear case, it is positioned at around the axis of described screw shaft, and is fixed to described getting on the right track, and is passed to described screw shaft with the rotation with described motor; And
First and second plates, it is used to allow to be applied to the described impact load that gets on the right track and directly is passed to described screw shaft, is passed to described screw shaft to prevent described impact load by described gear case, and is used to set the moving range of described nut.
2. electrically operated seat slide apparatus according to claim 1, wherein, described first and second plates are connected to described getting on the right track, and with the axis perpendicular to described screw shaft, and are positioned at described nut respectively and are inserted into therebetween position along the axis direction of described screw shaft.
3. electrically operated seat slide apparatus according to claim 1, wherein, described first plate is arranged in described the getting on the right track, and is connected to described getting on the right track, with axis perpendicular to described screw shaft,
Wherein, described seat slide apparatus also comprises first retainer, and it is connected to described screw shaft in the position near described first plate,
Wherein, described first plate comprises the top with upper process and has the following opposite side portion of lower process respectively,
Wherein, described getting on the right track comprises the upper wall portion that is formed with upper cut, and each all has the opposing sidewalls part of the bottom that is formed with lower cut,
Wherein, the described upper process of described first plate and described lower process are coupled in the described described upper cut and described lower cut that gets on the right track respectively, wherein said upper process has the outstanding outshot that surpasses the described described upper wall portion that gets on the right track, and described outshot has embedding real part branch
Wherein, described first plate is formed with patchhole, and described screw shaft inserts and passes described patchhole, and described first plate be provided with cylindrical portions may integratedly and be positioned at described patchhole around.
4. electrically operated seat slide apparatus according to claim 3, wherein, described lower process has corresponding upper end, described upper end extend to corresponding to the plane of the axis normal of described screw shaft on the position at center of the 3rd patchhole near.
5. electrically operated seat slide apparatus according to claim 3, wherein, described second plate is arranged in described the getting on the right track, and be connected to described getting on the right track, with axis perpendicular to described screw shaft, described first and second plates are positioned at described nut respectively and are inserted into therebetween position along the axis direction of described screw shaft, wherein said seat slide apparatus also comprises second retainer, it is connected to described screw shaft in the position near described second plate, and wherein said first and second retainers are arranged on the outside of described first and second plates respectively.
6. electrically operated seat slide apparatus according to claim 3 wherein, is positioned to relative with described first retainer with the described first described cylindrical portions may that is integrated that hardens.
7. electrically operated seat slide apparatus according to claim 1 also comprises the nut holding member, and it keeps described nut and be connected to described lower railway by elastic body,
Wherein, described nut holding member comprises the connecting bridge that is connected to described lower railway and two retaining parts that extend upward and be spaced apart from each other along the vehicle body fore-and-aft direction from described connecting bridge, in described two retaining parts each all is formed with first patchhole, described screw shaft inserts and passes described first patchhole
Wherein, described elastic body is formed by the elastomer block that is rectangular shape, described elastic body is formed with second patchhole, described screw shaft inserts and passes described second patchhole, described second patchhole extends along described elastomeric length direction, described elastic body comprises that the partial sum that defines recess defines the part of first and second adapted spaces, described recess opens wide to described elastomeric first surface, described first and second adapted spaces are at the opposite side that is positioned at described recess on the direction of described second patchhole, wherein said nut is coupled in the described elastomeric described recess, and described two retaining parts of described nut holding member are coupled in the described adapted space respectively.
8. electrically operated seat slide apparatus according to claim 7, wherein, the described connecting bridge of described nut holding member is positioned at described lower railway, and is connected to the inside face of described lower railway.
9. electrically operated seat slide apparatus according to claim 7, wherein, the described retaining part of described nut holding member is coupled in the described adapted space respectively by described elastomeric second surface, and described second surface is relative with described first surface about the axis of described second patchhole.
10. electrically operated seat slide apparatus according to claim 7, wherein, described elastic body is formed by elastomer block.
11. electrically operated seat slide apparatus according to claim 7, wherein, described getting on the right track has first and second sidewall sections that are spaced apart from each other and face with each other, wherein said elastic body has first and second side surfaces of the opposite side of the axis that is positioned at described second patchhole, and described elastomeric described first and second side surfaces are respectively near described described first and second sidewall sections that get on the right track.
12. electrically operated seat slide apparatus according to claim 7, wherein, described first and second plates are arranged in described the getting on the right track regularly, and be positioned at the opposite side of described nut respectively, in described first and second plates each all with the axis normal of described screw shaft, and be formed with the 3rd patchhole, described screw shaft inserts and passes described the 3rd patchhole.
13. electrically operated seat slide apparatus according to claim 7, wherein, described elastic body is formed by the rubber that Shore hardness is not less than A60.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008-089414 | 2008-03-31 | ||
| JP2008089414A JP5244436B2 (en) | 2008-03-31 | 2008-03-31 | Electric seat slide device |
| JP2008-089413 | 2008-03-31 | ||
| JP2008089413A JP2009241697A (en) | 2008-03-31 | 2008-03-31 | Electrically operated seat slide device |
| JP2008089413 | 2008-03-31 | ||
| JP2008089414 | 2008-03-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101549656A true CN101549656A (en) | 2009-10-07 |
| CN101549656B CN101549656B (en) | 2012-09-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101302309A Active CN101549656B (en) | 2008-03-31 | 2009-03-26 | Electrically operated seat slide apparatus |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2009241697A (en) |
| CN (1) | CN101549656B (en) |
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| CN102748439A (en) * | 2011-04-21 | 2012-10-24 | 钱涛 | Force booster implemented through corkscrew-force accumulation and distance increasing |
| CN102748439B (en) * | 2011-04-21 | 2016-12-14 | 钱涛 | Spiral force adds up increment booster |
| CN111137186A (en) * | 2018-11-02 | 2020-05-12 | 丰田纺织株式会社 | Sliding device |
| CN111267683A (en) * | 2018-12-04 | 2020-06-12 | Tf金属株式会社 | Electric seat sliding device |
| CN112109599A (en) * | 2020-09-28 | 2020-12-22 | 扬州欣瑞座椅有限公司 | But fine tuning car seat about with stable structure |
| CN115031001A (en) * | 2022-08-12 | 2022-09-09 | 宁波双林汽车部件股份有限公司 | Seat horizontal driving system, assembly and assembling method |
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| KR101126111B1 (en) * | 2010-07-14 | 2012-03-29 | (주)케이엠앤아이 | Combination Structure of Leadscrew for Power Seat Track and Assembly Method of the same |
| JP6048354B2 (en) * | 2013-09-27 | 2016-12-21 | トヨタ紡織株式会社 | Slide rail |
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| JP3522627B2 (en) * | 2000-02-28 | 2004-04-26 | ジョンソン コントロールズ オートモーティブ システムズ株式会社 | Seat slide device |
| DE10358586B4 (en) * | 2003-12-08 | 2008-02-21 | Keiper Gmbh & Co.Kg | Transmission housing of a Sitzverstellgetriebes for a motor vehicle |
| JP4857558B2 (en) * | 2004-12-21 | 2012-01-18 | アイシン精機株式会社 | Power seat slide device for vehicle |
| JP2006335153A (en) * | 2005-05-31 | 2006-12-14 | Fuji Kiko Co Ltd | Seat slide device |
| KR20080020735A (en) * | 2006-09-01 | 2008-03-06 | 계양전기 주식회사 | Apparatus for moving seats for cars |
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2008
- 2008-03-31 JP JP2008089413A patent/JP2009241697A/en active Pending
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2009
- 2009-03-26 CN CN2009101302309A patent/CN101549656B/en active Active
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| CN102748439A (en) * | 2011-04-21 | 2012-10-24 | 钱涛 | Force booster implemented through corkscrew-force accumulation and distance increasing |
| CN102748439B (en) * | 2011-04-21 | 2016-12-14 | 钱涛 | Spiral force adds up increment booster |
| CN111137186A (en) * | 2018-11-02 | 2020-05-12 | 丰田纺织株式会社 | Sliding device |
| CN111137186B (en) * | 2018-11-02 | 2022-05-03 | 丰田纺织株式会社 | Sliding device |
| CN111267683A (en) * | 2018-12-04 | 2020-06-12 | Tf金属株式会社 | Electric seat sliding device |
| CN111267683B (en) * | 2018-12-04 | 2022-05-17 | Tf金属株式会社 | Electric seat sliding device |
| CN112109599A (en) * | 2020-09-28 | 2020-12-22 | 扬州欣瑞座椅有限公司 | But fine tuning car seat about with stable structure |
| CN115031001A (en) * | 2022-08-12 | 2022-09-09 | 宁波双林汽车部件股份有限公司 | Seat horizontal driving system, assembly and assembling method |
| CN115031001B (en) * | 2022-08-12 | 2022-11-04 | 宁波双林汽车部件股份有限公司 | Seat horizontal driving system, assembly and assembling method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2009241697A (en) | 2009-10-22 |
| CN101549656B (en) | 2012-09-26 |
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