CN201511882U - Electric rearview folding device - Google Patents

Abstract

The utility model discloses an electric rearview folding device, which is assembled with a rearview housing of a vehicle and drives the housing to rotate relative to the vehicle body. The electric rearview folding device comprises a fixed base, a rotary base sheathed on the base in a pivoting manner for driving the rearview housing to rotate, a rolling ball unit, a clamp unit mounted in the base, and a power unit for driving the rotary base to rotate relative to the base. The electric rearview folding device is improved in that the rolling ball unit includes two rolling balls arranged between the base and the rotary base; and the base and the rotary base have structures matched with each other for allowing the rolling balls to slide correspondingly. Accordingly, the rotary base can rotate smoothly through the rolling ball unit, thereby reducing the rotation abrasion of the rotary base and prolonging the service life.

Description

The rear-view mirror electric folding device

Technical field

The utility model relates to a kind of rear-view mirror electric folding device, particularly relates to a kind of rear-view mirror electric folding device that is used to drive back mirror expansion or folding.

Background technology

As Fig. 1,2, shown in 3, a kind of vehicle rear-view mirror electric foldable device that is disclosed for No. 86106461 patent case of TaiWan, China patent (being equivalent to U.S. Pat 6130514), and be installed in the mirror shell 96 and rotate relative to a support 97 to drive this mirror shell 96, described rear-view mirror electric folding device comprises: a pedestal 7 that combines with support 97 regularly, a transposon 18 that is set on this pedestal 7 pivotly and drives 96 rotations of mirror shell, and be installed in a power unit 91 on this transposon 18, one kink gear 92, one connects ring seat 93, one elastic component 94, and a carrier ring 95.

Consult Fig. 2,3,4, this pedestal 7 comprises that one is positioned at a bridge joint portion 71 of below, and one from the axially outstanding axis parts 72 of this bridge joint portion 71, and the apical margin of this bridge joint portion 71 comprises ring 73 in the pedestal, and a pedestal outer shroud 74 that links ring 73 in this pedestal.Ring 73 comprises that one first chase 731, is outstanding and comprise first sliding surface 732 of first a prominent section of establishing 734 that projects upwards than first chase 731 in this pedestal, and two intervals and link this first chase 731 and first inclined-plane 733 of first sliding surface 732.This pedestal outer shroud 74 comprises a corresponding position at second chase 741 of these first sliding surface, 732 peripheries, and second sliding surface 742 with second prominent the establish section 744 that project upwards outstanding than second chase 741, and two intervals and link second chase 741 and second inclined-plane 743 of second sliding surface 742.

Consult Fig. 2,3,5, this transposon 18 is to be formed by one first housing 85 and one second housing 86 butt joint assemblings, and comprises one first installation portion 81, and second installation portion 82 of this first installation portion 81 of binding.

Wherein, this first installation portion 81 is for the 72 upwards projection settings of this axis part, and the design of the root edge of first installation portion 81 works in coordination with these bridge joint portion 71 apical margin structures, this first installation portion 81 have inner and outer ring around a swivel base in ring 83 and one swivel base outer shroud 84.Wherein, ring 83 comprises that one the 3rd chase 831, is outstanding and comprise the 3rd sliding surface 832 of outstanding the 3rd a prominent section of establishing 834 downwards than the 3rd chase 831 in this swivel base, and two intervals and link the 3rd chase 831 and the 3rd inclined-plane 833 of the 3rd sliding surface 832, this swivel base outer shroud 84 comprises that a corresponding position is outstanding and comprise the 4th sliding surface 842 of outstanding the 4th a prominent section of establishing 844 than the 4th chase 841 at the 4th chase 841 of the 3rd sliding surface 832 peripheries,, and two intervals and link the 4th chase 841 and the 4th inclined-plane 843 of the 4th sliding surface 842.

This power unit 91 comprises that a motor 911, with an outstanding axle drive shaft 912 is driven by this axle drive shaft 912 and driven by this worm screw 913 and the worm gear 914, that rotates is subjected to the output shaft 915 of these worm gear 914 interlocks around the worm screw 913, of self rotational, and two intervals are installed in the both sides of this output shaft 915 and driven by output shaft 915 and the driven gear 916 (Fig. 3 only illustrates) that rotates.Described kink gear 92, to connect ring seat 93, elastic component 94 all be to be set in this 72 peripheries, axis part with carrier ring 95, under general running condition, this kink gear 92 be connected ring seat 93 secure bond together, and pushed against by these elastic component 94 downward elastic force.

Consult Fig. 1,3,4,5, this rear-view mirror electric folding device is under the motorized motions pattern, this motor 911 starts and then driven gear 916 is rotated, and drive this transposon 18 relatively this kink gear 92 rotates with pedestal 7, and then drive mirror shell 96 and also pivot and inwardly folding or outside expansion.When relative this pedestal 7 of described transposon 18 pivots, first and second chase the 731, the 741st of pedestal 7 cooperates third and fourth the prominent section of establishing 834,844 slippages for transposon 18, and third and fourth chase 831,841 of transposon 18 cooperates first and second the prominent section of establishing 734,744 slippages for pedestal 7, can be limited the angle of the folding and the expansion of mirror shell 96 by the extension arc length of described chase 731,741,831,841.

Though this mirror shell 96 is under the motorized motions pattern, its pivoting angle has certain scope, but when mirror shell 96 is subjected to bigger strength bump, for example be subjected to forward or during bump strength backward, or the user is when pulling the manual mode of mirror shell 96 with hand, mirror shell 96 must inwardly or outwards be done the wide-angle bending along external force, damages to avoid mirror shell 96.So under the on-electric drive pattern; this connection ring seat 93 will upwards be pushed open vertically and be removed marriage relation with this kink gear 92; kink gear 92 and then transposon 18 rotations this moment; and this transposon 18 this pedestal 7 relatively slightly axially moves up; the so the 3rd; the four prominent sections of establishing 834; 844 slippages are in first; two chases 731; 741 also can cross first; two inclined-planes 733; 743 and slippage in first; two sliding surfaces 732; 742; similarly; first; the two prominent sections of establishing 734; 744 cross the 3rd; four inclined-planes 833; 843 and slippage in the 3rd; four sliding surfaces 832; 842, but being strengthened, the pivoting angle of transposon 18 cushions external force and protective glass shell 96.

Pivot though this rear-view mirror electric folding device can be made wide-angle, be to use still ideal not to the utmost, reason is as follows: the matching design complexity of the outstanding and sunk structure of transposon 18 and pedestal 7, and it is smooth and easy inadequately to slide.And when being subjected to big external force, be somebody's turn to do the prominent section of establishing 734,744,834,844 will cross inclined-plane 733,743,833,843 and slide on sliding surface 732,742,832,842 o'clock, the prominent section of establishing 734,744,834,844 meetings and inclined-plane 733,743,833,843 produce very big wearing and tearing, and then influence inclined-plane 733,743,833,843 gradients and the prominent section of establishing 734,744,834,844 structure, and inclined-plane 733,743,833,843 are worn its gradient is diminished, service life is short, and cause limiting the deleterious of mirror shell 96 rotational angles, so above-mentioned rear-view mirror electric folding device remains improvement.

In addition, disclose another kind of rear-view mirror electric folding device as No. 92117761 patent case of TaiWan, China patent (being equivalent to U.S. Pat 7008067), its mechanism that pivots is the cooperation by the prominent section of establishing, chase, sliding surface equally, and when being subjected to big external force, the prominent section of establishing still can produce serious wear phenomenon with the inclined-plane on chase border, so this rear-view mirror electric folding device is also undesirable.

The utility model content

The purpose of this utility model is a kind of not easy to wear, long service life to be provided, to rotate rear-view mirror electric folding device smoothly.

The utility model rear-view mirror electric folding device comprises: swivel base, a rolling-ball unit, that a pedestal that fixedly installs, is set on this pedestal pivotly fasten the unit, and a power unit.

This pedestal comprises a basal segment, and one from the axially outstanding shaft part of this basal segment.This swivel base comprises that one articulates installation portion with this shaft part stack-mounted, described pivot joint installation portion comprises first side face towards this pedestal, this first side face comprises two intervals and horizontally disposed sliding surface section, and two to be positioned at sliding surface intersegmental and distinctly define the concave surface section of a groove, described concave surface section all have two be located at interval at opposite end and connect the sliding surface section tiltedly stretch the district.This rolling-ball unit comprise two respective slot and be arranged on the basal segment of this pedestal and first side face of this swivel base between ball, each ball all has the slidingsurface of an arc song, described ball be distinctly slippage accordingly in described groove, and can from described groove cross tiltedly stretch the district and slippage in the sliding surface section.This fastens the unit and comprises that one is set in the kink gear on this shaft part.This kink gear of this power unit butt also drives this swivel base this pedestal pivot relatively.

The beneficial effects of the utility model are: by the design of this rolling-ball unit, swivel base can be rotated swimmingly relative to this pedestal, and cooperate the effect that fastens the unit, make the utility model can order about the mirror shell under an on-electric drive pattern and make the wide-angle pivot.Rotate abrasion because this rolling-ball unit effectively reduces, can prolong the service life of each member of the utility model, and make rotation smooth and easy.

Description of drawings

Fig. 1 is the partial rear view of a car, shows the assembled relation of an a kind of known rear-view mirror electric folding device and a mirror shell, a support;

Fig. 2 is the three-dimensional exploded view of the partial component of this known rear-view mirror electric folding device;

Fig. 3 is the assembled sectional view of this known rear-view mirror electric folding device;

Fig. 4 is the birds-eye view of a pedestal of this rear-view mirror electric folding device;

Fig. 5 is the upward view of a swivel base of this rear-view mirror electric folding device;

Fig. 6 is the partial top view of a car, the assembled relation of a most preferred embodiment of demonstration the utility model rear-view mirror electric folding device and a mirror shell, a support;

Fig. 7 is the three-dimensional exploded view of the partial component of this most preferred embodiment;

Fig. 8 is the assembled sectional view of this most preferred embodiment;

Fig. 9 is the upward view of a swivel base of this most preferred embodiment;

Figure 10 is the combination birds-eye view of the partial component of this most preferred embodiment;

Figure 11 is the birds-eye view of a pedestal of this most preferred embodiment, and illustrates this swivel base not rotate relative to this pedestal as yet;

Figure 12 is the birds-eye view of a similar Figure 11, and this swivel base rotates an angle value relative to this pedestal;

Figure 13 is the assembled sectional view of a similar Fig. 8, and two balls are arranged in two caulking grooves fully among the figure, and the position of one first ring is than position height shown in Figure 8.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is elaborated:

Consult Fig. 6,7,8, the most preferred embodiment of the utility model rear-view mirror electric folding device is to assemble with a mirror shell 61 of a car 6, rotate relative to a support 62 of car 6 to drive this mirror shell 61, this rear-view mirror electric folding device comprises: a pedestal that combines with support 62 regularly 1, is set on this pedestal 1 pivotly and drives rolling-ball unit 3, that swivel base 2, that mirror shell 61 rotates is installed in this pedestal 1 and 2 of swivel bases and is installed in and fastens unit 4 on this swivel base 2, and a power unit 5 that drives these swivel base 2 pivots.

This pedestal 1 comprises the shaft part 12 that the basal segment 11, of a circle axially projects upwards from this basal segment 11, and three intervals from this basal segment 11 radially outstanding and with the prominent key section 13 of support 62 secure bond.Wherein, this basal segment 11 comprises that two intervals are arranged with the caulking groove 111 in end face, and this shaft part 12 comprises a hollow main shaft portion 121, and three first location divisions 122 of radially giving prominence to from this main shaft part 121.

Consult Fig. 7,8,9, this swivel base 2 is to be formed by one first housing 23 and one second housing 24 butt joints, these first and second housings 23,24 define an accommodation space 20 jointly, and after first and second housing 23,24 butt joints, this swivel base 2 comprises that articulates an installation portion 21, and one links the power installation portion 22 that this articulates installation portion 21.Described pivot joint installation portion 21 comprises annular first side face 211 towards this pedestal 1, second side face 212 that is located at interval at these first side face, 211 tops, and an axle mounting hole 213 (Fig. 7) of running through these first and second side faces 211,212.

Described first side face 211 comprises two intervals and horizontally disposed sliding surface section 214, and two concave surface sections 215 that are positioned at 214 of sliding surface sections and distinctly define a groove that upwards is arranged with 216, described concave surface section 215 all have two be located at interval at opposite end and connect sliding surface section 214 tiltedly stretch district 217.

This rolling-ball unit 3 comprises two elastic components 31 that distinctly are placed in these caulking grooves 111, and two distinctly be arranged on these elastic component 31 apical margins and slip in the ball 32 of groove 216, and each ball 32 all has the slidingsurface 321 of a smooth circular arc.

This fastens unit 4 and is mounted in this accommodation space 20 and is set on this shaft part 12, and the described unit 4 that fastens comprises stacked one first ring 41, a kink gear 42, a spring 43 up and down, and one second ring 44.Wherein, this first ring 41 comprises that the main ring section 411 of an annular, six equal angles are arranged with second location division 412 in these main ring section 411 inner peripherals at interval, and three intervals are from the 3rd outstanding downwards location division 413 of this main ring section 411, described second location division 412 all is the chase that the footpath concaves, and can mutually combine with outstanding first location division 122 on the pedestal 1 and these first ring, 41 fixed covers are located on this pedestal 1, when implementing, the matching design mode of these second location divisions 412 and first location division 122 also can be exchanged.And these grade in an imperial examination three location divisions 413 all are outstanding downwards prominent grain, and each the 3rd location division 413 all comprises a sliding face 414 that supports.

This kink gear 42 comprises three the 4th location divisions 421 that are located at interval at end face, and each the 4th location division 421 all is the groove design that is arranged with downwards.Described the 4th location division 421 is to cooperate with the 3rd location division 413 that to fasten and make this kink gear 42 be to combine with this first ring 41 regularly, and when implementing, the outstanding of third and fourth location division 413,421 fastens structure and also can exchange design with caving in to cooperate.This spring 43 also is to be sheathed on this shaft part 12, and its elastic force pushes against this first ring 41 and compresses this kink gear 42 downwards, stressed again second side face 212 that compresses this swivel base 2 of this kink gear 42.

Consult Fig. 7,8,10, this power unit 5 is assembled in the power installation portion 22 of this swivel base 2, and comprise: a propulsion source 51, one driven and the driving gear 52 of rotation by propulsion source 51, one trace 53 that supplies these driving gear 52 interlocks to set up rotationally, and two be located at interval at trace 53 both sides and with these kink gear 42 ingear driven gears 54, the concrete example of described propulsion source 51 is motors, and comprise a power body 511, and ultromotivity body 51 extends and can be around the dynamical axis 512 of self rotational, can drive this driving gear 52 and trace 53 during these dynamical axis 512 rotations around self rotational, and then drive these driven gears 54 and rotate, because these power unit 5 non-improvement emphasis of the present utility model, so no longer describe in detail.

Consult Fig. 6,7,8, the utility model is under the motorized motions pattern, this dynamical axis 512 drives these driven gears 54 and rotates, because this driven gear 54 intermeshes with this kink gear 42, and kink gear 42 is by this first ring 41 and fixed cover is located on the shaft part 12 of pedestal 1, so this kink gear 42 can not rotate, and then drive this swivel base 2 by other member of this driven gear 54 and power unit 5 and pivot with mirror shell 61.

Consult Fig. 6,11,12, swivel base 2 is positioned under the state of Figure 11, its bearing of trend is to be 90 degree approximately with car body, when these swivel base 2 relative pedestals 1 pivot, it is cooperating by the groove 216 of ball 32 and swivel base 2, swivel base 2 swivel base 2 can successfully be rotated relative to this pedestal 1, and the pivoting angle of swivel base 2 is the extension arc length that are subject to groove 216, so can drive the state of mirror shell 61 inside foldings to Figure 12.

Consult Fig. 8,11,13, when the utility model under the on-electric drive pattern, for example manual mode of pulling with hand, or mirror shell is subjected to bigger external impacts and must forces when rotating, this swivel base 2 is rotated towards counterclockwise by the state of Figure 11.This kink gear 42 rotates because of external force, and when rotating, because this first ring 41 combines and does not rotate with pedestal 1 regularly, add its sliding curvature design of supporting face 414 ora terminalis, so three location divisions 413 of first ring 41 break away from the 4th location division 421 (see figure 8)s of kink gear 42, thereby the fixed relationship of the releasing kink gear 42 and first ring 41, swivel base 2 rotates to make kink gear 42 can continue and then.Simultaneously, this first ring 41 breaks away from this kink gear 42 and moves a segment distance (its miles of relative movement is equivalent to the outstanding thickness of the 3rd location division 413) and this spring 43 of pushing tow that makes progress to top offset, inverse clock rotates and compress ball 32 with sliding surface section 214 and this swivel base 2 continues, that is to say, ball 32 is crossed and is tiltedly stretched district 217 and corresponding to the position of sliding surface section 214, the degree that this moment, elastic component 31 was compressed becomes big, ball 32 is absorbed in caulking groove 11 (as Figure 13) fully, and the rotational angle of swivel base 2 no longer is subjected to the extension radian of groove 216 and limits.

The utility model reduces the friction force of 1 of swivel base 2 and pedestal by ball 32, make this swivel base 2 be easy to rotate relative to this pedestal 1, and the slidingsurface 321 of ball 32 is smooth circular arc design, so it is less that ball 32 slides on the abrasion that produced on concave surface section 215, the sliding surface section 214, simultaneously, it is little that ball 32 destroys degree of being for the abrasion of tiltedly stretching district 217, to avoid destroying the inclined design of tiltedly stretching district 217, and ball 32 will be crossed from concave surface section 215 and tiltedly stretch district 217 and to should sliding surface section 214 time, and is also more or less freely.In addition, the design of this elastic component 31 makes ball 32 roll in elastic component 31 apical margin original places, also can reach the purpose smoothly of rolling.

By above explanation as can be known,, swivel base 2 can be rotated swimmingly, and cooperate the effect that fastens unit 4, make the utility model under the on-electric drive pattern, can order about mirror shell 61 and make the wide-angle pivot relative to this pedestal 1 by the design of this rolling-ball unit 3.Because effectively reducing, this rolling-ball unit 3 rotates abrasion, can prolong the service life of each member of the utility model, and make rotation smooth and easy, and mirror shell 61 be subjected to external collision strength and relative to the car body mal when rotating (when rotational angle is excessive), rolling-ball unit 3 can reduce collision strength, make mirror shell 61 be unlikely to damage too greatly, so reach the purpose of this utility model really because of collision strength.

Claims (5)

1. rear-view mirror electric folding device comprises: a pedestal that fixedly installs, and a swivel base that is set in pivotly on this pedestal, and described pedestal comprises a basal segment, and one from the axially outstanding shaft part of this basal segment, it is characterized in that:

This swivel base comprises one and this shaft part stack-mounted pivot joint installation portion, described pivot joint installation portion comprises first side face towards this pedestal, this first side face comprises two intervals and horizontally disposed sliding surface section, and two to be positioned at sliding surface intersegmental and distinctly define the concave surface section of a groove, described concave surface section all have two be located at interval at opposite end and connect the sliding surface section tiltedly stretch the district;

This rear-view mirror electric folding device also comprises:

A rolling-ball unit, comprise two respective slot and be arranged on the basal segment of this pedestal and first side face of this swivel base between ball, each ball all has the slidingsurface of an arc song, described ball be distinctly slippage accordingly in described groove, and can from described groove cross tiltedly stretch the district and slippage in the sliding surface section;

One fastens the unit, comprises a kink gear that is set in this shaft part; And

A power unit, this kink gear of butt also drives this swivel base this pedestal pivot relatively.

2. rear-view mirror electric folding device as claimed in claim 1, it is characterized in that: this basal segment comprises that two intervals are arranged with the caulking groove that is formed at its end face, this rolling-ball unit also comprises two elastic components that distinctly are placed in described caulking groove, and described ball is the apical margin that distinctly is arranged at described elastic component.

3. rear-view mirror electric folding device as claimed in claim 1, it is characterized in that: the shaft part of this pedestal comprises a main shaft part, and first location division that is arranged on this main shaft part, this fasten the unit also comprise one regularly with shaft part sheathed and with first ring of kink gear butt, this first ring comprises a main ring section around this main shaft part, and one is positioned on this main ring section and cooperates second location division that fastens with first location division.

4. rear-view mirror electric folding device as claimed in claim 3, it is characterized in that: this first ring also comprises the 3rd location division that is arranged on the bottom surface of this main ring section, this kink gear comprises the 4th location division that is positioned at end face and cooperates with the 3rd location division, one of them of described the 3rd location division and the 4th location division is provided with for outstanding, another is provided with for depression, when this rear-view mirror electric folding device under a motorized motions pattern, described the 3rd location division and the 4th location division fasten mutually and make the kink gear by this first ring and fixed cover is located at the shaft part of pedestal; When this rear-view mirror electric folding device under an on-electric drive pattern, this kink gear is driven by swivel base and rotates, and the 4th location division of kink gear breaks away from the 3rd location division, to remove the fixed relationship of the kink gear and first ring.

5. rear-view mirror electric folding device as claimed in claim 4 is characterized in that: this fastens the unit and also comprises a spring that is set on this shaft part and first ring is pushed towards this kink gear.

Images