CN203585058U - Short stroke pivoting device and positioning device thereof - Google Patents
Short stroke pivoting device and positioning device thereof Download PDFInfo
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- CN203585058U CN203585058U CN201320592426.1U CN201320592426U CN203585058U CN 203585058 U CN203585058 U CN 203585058U CN 201320592426 U CN201320592426 U CN 201320592426U CN 203585058 U CN203585058 U CN 203585058U
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Abstract
The utility model discloses a short stroke pivoting device and a positioning device of the short stroke pivoting device. The short stroke pivoting device comprises a rotating shaft, the positioning device and a torsional spring, wherein the positioning device is sleeved with the rotating shaft and comprises a fixed cam and a rotating cam which can rotate relatively; the fixed cam is provided with two raised resisting parts, two elastic positioning bodies are in bridge connection with the rotating cam in an arch shape, and the top surface of each elastic positioning body has positioning holes; the rotating shaft passes through the fixed cam and rotates together with the rotating cam, and a free end of a torsional spring sleeve and the rotating shaft rotate together. Therefore, when the rotating shaft rotates, the raised resisting parts can press the elastic positioning bodies and are clamped in the corresponding positioning holes; when the rotating shaft rotates reversely, the raised resisting parts are departed from the corresponding positioning holes, and the rotating shaft returns to the original position through the restoring force of the torsional spring.
Description
Technical field
The utility model relates to a kind of short stroke pivot device, espespecially utilizes rotating cam and stationary cam mutually to rotate, and makes the convex supporting part clip of stationary cam in the positioning hole of the arcuation elasticity positioning body of rotating cam, reaches the pivot device of locating effect.
Background technique
Press, traditional notebook computer, hand held translating machine, individual with oneself the digital product screen panel such as data processor (PDA) and main frame itself are the object of utilizing pivot to reach to interconnect, assemble mostly.Yet, use only can provide the function of a kind of pivotable of this panel and support mostly at the pivot of above-mentioned digital product, when user states digital product in the use, must utilize hand that panel is started to location, begin to carry out instruction input operation by the input element on this digital product main frame (as keyboard etc.), yet start when action carrying out panel, mostly need first utilize the main frame itself of fixing on the other hand this digital product, another hand can start the panel of this product, therefore very trouble and inconvenience in operation, moreover, the pivot of aforementioned digital product arrives behind pivotable location, just cannot be rotated again action, once now panel is subject to external force collision, be easy to make main frame, together with panel vibrates, main frame inside precision circuit is caused to harmful effect, structure that also likely can secondary damage pivot itself when serious.In addition, existing pivot device is provided with interference component in relative rotation conventionally.Interference component comprises that be oppositely arranged a pair of protruding, recessed take turns, and corresponding a pair of projection, depression are set respectively on it, utilizes the projection on cam to fall into the depression on recessed wheel and reach the effect of above-mentioned automatic location when relatively rotating.Yet, because protruding, recessed stroke distances of taking turns is each other long, therefore when opening the panel of this digital product, protruding, recessed rotation angle of taking turns is each other large, therefore the friction torque producing while often needing enough external force can overcome this interference component motion.Moreover above-mentioned protruding, recessed wheel all do not have elasticity, therefore easily because wearing and tearing reduction of service life each other.
In sum, need to propose a kind of reasonable in design and effectively improve short stroke pivot device and the positioning device thereof of above-mentioned disappearance.
Summary of the invention
Main purpose of the present utility model is, a kind of short stroke pivot device is provided, and it can be arranged between electronic equipment and runing rest, to make runing rest can easily be accommodated in electronic equipment, and easily electronic equipment unlatching relatively.
Secondary objective of the present utility model is, a kind of short stroke pivot device is provided, and it can allow the runing rest of electronic equipment reach automatically to start, cushion the short stroke pivot device of pivotable and locating effect.
In order to reach above-mentioned object, the utility model provides a kind of short stroke pivot device, and it comprises: a rotating shaft; One positioning device, it is sheathed on this rotating shaft, this positioning device comprises can a counterrotating stationary cam and a rotating cam, one side of this stationary cam is provided with two convex supporting parts, this rotating cam is provided with two elasticity positioning bodies in abutting connection with a side of this stationary cam, this two elasticity positioning body bridges at this rotating cam with arcuation, between this two elasticity positioning body, form the horizontal portion of sliding, described in each, the end face of elasticity positioning body has a positioning hole, and this rotating shaft is together rotated with this rotating cam through this stationary cam; And a torque spring, it has a fixed end and a free end, and this torque spring is sheathed on this rotating shaft and this free end and this rotating shaft and together rotates; Wherein, when rotation pressure is bestowed in this rotating shaft, described in each, convex supporting part slides and suppresses this corresponding elasticity positioning body along this portion of sliding, and clip is in this positioning hole; Wherein, when reverse rotation pressure is bestowed in this rotating shaft, described in each, convex supporting part departs from this corresponding positioning hole, and makes this rotating shaft return back to origin-location by the restoring force of this torque spring.
In an embodiment of the utility model short stroke pivot device, described two elasticity positioning body intervals 180 degree, the line direction of described two elasticity positioning bodies defines a rotation axis, the line direction of described two convex supporting parts defines a fixed axis, between this rotation axis and this fixed axis, has an included-angle-changeable.
In an embodiment of the utility model short stroke pivot device, described in each, elasticity positioning body has relative two tilted guide surfaces and two relative end faces, described two tilted guide surfaces are obliquely extended to this rotating cam from these end face both sides respectively, this rotation axis is perpendicular to described two end faces, between one of them of described two end faces and this rotating cam, have a fluting, described two tilted guide surfaces have one stroke distance with this positioning hole respectively.
In an embodiment of the utility model short stroke pivot device, this rotating shaft has a circular axostylus axostyle and a non-circular axostylus axostyle, this non-circular axostylus axostyle stretches out from one end of this circle axostylus axostyle, this stationary cam has a circular hole passing for this circle axostylus axostyle, and this rotating cam has a non-circular hole passing for this non-circular shaft and together rotates with this rotating shaft.
In an embodiment of the utility model short stroke pivot device, the end of this non-circular axostylus axostyle is provided with a screw section, and a nut is fixed on this screw section makes this torque spring produce oppressive force, and makes this rotating shaft rest on arbitrary rotation angle.
In an embodiment of the utility model short stroke pivot device, also comprise that a rotation is installed in the fixed pedestal of this rotating shaft, this fixed pedestal has the first relative end face and the second end face, this first end face and this second end face run through respectively and are formed with one first axis hole and one second axis hole, this first end face is in the other assembly hole that is provided with of this first axis hole, this second end face is in the other positioning hole that is provided with of this second axis hole, this rotating shaft runs through and is arranged at this first axis hole and this second axis hole, the fixed end of this torque spring plugs and is fixed in this positioning hole, this stationary cam is fixedly arranged on this assembly hole, and the periphery of this stationary cam is equipped with the projection that is sticked in this assembly hole, with so that this stationary cam relatively this fixed pedestal do not rotate.
In an embodiment of the utility model short stroke pivot device, this positioning device also comprises a limited wheel, this limited wheel has a non-circular guide hole passing for this non-circular shaft and together rotates with this rotating shaft, this rotating cam is between this limited wheel and this stationary cam, and the periphery of this limited wheel is equipped with a limiting stopper, this first end mask of this fixed pedestal has one first confined planes and one second confined planes, the displacement between this first confined planes and this second confined planes of this limiting stopper, to limit the rotation angle of this rotating shaft.
In an embodiment of the utility model short stroke pivot device, on this torque spring, be also provided with a torsional wheel, the periphery of this torsional wheel has a plurality of spaced locating slots, the free end of this torque spring is fixed on one of them of described a plurality of locating slots, so that the free end of this torque spring and this rotating shaft are together rotated, and this short stroke pivot device also comprise one be fixed on this rotating shaft and with the runing rest of this rotating shaft interlock, this fixed pedestal is fixedly arranged on an electronic equipment, this rotating shaft drives this rotating cam synchronously to rotate when this runing rest is bestowed rotation pressure in this rotating shaft, make described in each convex supporting part clip in this positioning hole of correspondence, this rotation axis and this fixed axis are overlapping, this runing rest is accommodated in this electronic equipment, described in each, convex supporting part departs from this corresponding positioning hole when this runing rest is bestowed reverse rotation pressure in this rotating shaft, and make this rotation axis return back to origin-location by the restoring force of this torque spring, this runing rest supports this electronic equipment.
On the other hand, the utility model also discloses a kind of positioning device that is applied to short stroke pivot device, and this positioning device comprises: a stationary cam, and one side is provided with two convex supporting parts; One rotating cam, it can rotate relatively with this stationary cam, this rotating cam is provided with two elasticity positioning bodies in abutting connection with a side of this stationary cam, this two elasticity positioning body bridges at this rotating cam with arcuation, between this two elasticity positioning body, form the horizontal portion of sliding, described in each, the end face of elasticity positioning body has a positioning hole; Wherein, this short stroke pivot device comprises a rotating shaft and is sheathed on a torque spring of this rotating shaft, and this rotating shaft is together rotated with free end and this rotating cam of this torque spring through this stationary cam; Wherein, when rotation pressure is bestowed in this rotating shaft, described in each, convex supporting part slides and suppresses this corresponding elasticity positioning body along this portion of sliding, and clip is in this positioning hole; Wherein, when reverse rotation pressure is bestowed in this rotating shaft, described in each, convex supporting part departs from this corresponding positioning hole, and makes this rotating shaft return back to origin-location by the restoring force of this torque spring.
In an embodiment of the utility model positioning device, described two elasticity positioning body intervals 180 degree, the line direction of described two elasticity positioning bodies defines a rotation axis, the line direction of described two convex supporting parts defines a fixed axis, between this rotation axis and this fixed axis, there is an included-angle-changeable, and described in each, elasticity positioning body has relative two tilted guide surfaces and two relative end faces, described two tilted guide surfaces are obliquely extended to this rotating cam from these end face both sides respectively, this rotation axis is perpendicular to described two end faces, between one of them of described two end faces and this rotating cam, there is a fluting, described two tilted guide surfaces have one stroke distance with this positioning hole respectively.
The utility model at least has advantages of following: the utility model is about a kind of short stroke pivot device and positioning device thereof, when the runing rest wish of electronic equipment is opened, just can utilize the elastic force of torque spring to drive rotating cam so that runing rest is opened, therefore only need one-handed operation runing rest can be flicked.In addition, short stroke pivot device of the present utility model, the structural design of the arcuation elasticity positioning body of its rotating cam and the convex supporting part of stationary cam, when making convex supporting part clip or departing from arcuation elasticity positioning body, has advantages of laborsaving and minimizing abrasion.
Above about the explanation of the utility model content and the explanation of following mode of execution in order to give an example and to explain principle of the present utility model, and provide claim scope of the present utility model further to explain.
Accompanying drawing explanation
Fig. 1 is the three-dimensional exploded view of the utility model short stroke pivot device;
Fig. 2 is the three-dimensional exploded view of another angle of the utility model short stroke pivot device;
Fig. 3 is the stationary cam of the utility model short stroke pivot device and the three-dimensional exploded view of rotating cam;
Fig. 4 is the three-dimensional combination figure of the utility model short stroke pivot device;
Fig. 5 A is the action schematic sectional view () of the utility model short stroke pivot device;
Fig. 5 B is the schematic diagram of the utility model short stroke pivot device collocation electronic equipment of Fig. 5 A;
Fig. 6 A is the action schematic sectional view (two) of the utility model short stroke pivot device; And
Fig. 6 B is the schematic diagram of the utility model short stroke pivot device collocation electronic equipment of Fig. 6 A.
Wherein, description of reference numerals is as follows:
100 short stroke pivot devices
1 rotating shaft
11 circular axostylus axostyles
12 non-circular axostylus axostyles
121 screw sections
2 positioning devices
20 stationary cams
201 convex supporting parts
202 circular holes
203 projections
21 rotating cams
211 elasticity positioning bodies
211a end face
211b positioning hole
211c tilted guide surface
211d end face
212 slide portion
213 non-circular holes
22 limited wheels
221 limiting stoppers
222 non-circular guide holes
3 torque springs
30 fixed ends
31 free ends
4 nuts
5 fixed pedestals
51 first end faces
511 first axis holes
512 assembly holes
513 first confined planes
514 second confined planes
52 second end faces
521 second axis holes
522 positioning holes
6 torsional wheels
61 locating slots
7 pads
200 electronic equipments
201 backboards
300 runing rests
C1 rotation axis
C2 fixed axis
A fluting
Embodiment
Described embodiment mentions quantity or its fellow below, and unless otherwise mentioned, otherwise application category of the present utility model should not be subject to its quantity or its fellow's restriction.Short stroke pivot device 100 of the present utility model is specially adapted to have the electronic equipment 200 of runing rest 300, but the scope that therefore limit the utility model is not applied.
Refer to shown in Fig. 1 to Fig. 4, the utility model provides a kind of short stroke pivot device 100, and it mainly comprises a rotating shaft 1, a positioning device 2 and a torque spring 3; Wherein, positioning device 2 is sheathed on rotating shaft 1, and positioning device 2 include can a counterrotating stationary cam 20 and a rotating cam 21.
Rotating shaft 1, in the present embodiment, rotating shaft 1 can have a circular axostylus axostyle 11 and a non-circular axostylus axostyle 12, and non-circular axostylus axostyle 12 stretches out from one end of circular shaft bar 11; Wherein, the end of non-circular axostylus axostyle 12 is provided with a screw section 121, so that a nut 4 is fixed on screw section 121.
Torque spring 3, it has a fixed end 30 and a free end 31, and torque spring 3 is sheathed on rotating shaft 1 and free end 31 together rotates with rotating shaft 1; In the present embodiment, on torque spring 3, be more provided with a torsional wheel 6; Wherein, because the periphery of torsional wheel 6 has a plurality of spaced locating slots 61, and the free end 31 of torque spring 3 is fixed on those locating slots 61 one of them, therefore can make the free end 31 of torque spring 3 together rotate with this rotating shaft 1.
Rotating cam 21, its side in abutting connection with stationary cam 20 can be provided with two elasticity positioning bodies 211 of corresponding two convex supporting parts 201, as shown in Figures 1 and 3, two elasticity positioning bodies 211 bridge at rotating cam 21 (a side arcuation projection that is rotating cam 21 forms two elasticity positioning bodies 211) with arcuation, the elasticity while compressing in order to increase by two elasticity positioning bodies 211.Between two elasticity positioning bodies 211, on a side of rotating cam 21, be formed with the horizontal portion of sliding 212, the track (when rotating cam 21 and stationary cam 20 relatively rotate) sliding in order to be used as two convex supporting parts 201, and the end face 211a of each elasticity positioning body 211 has a positioning hole 211b.In the present embodiment, rotating cam 21 has a non-circular hole 213 that can pass for the non-circular axostylus axostyle 12 of rotating shaft 1, because the shape of non-circular hole 213 is corresponding with the sectional shape of non-circular axostylus axostyle 12, make rotating cam 21 driven and synchronous rotary by rotating shaft 1.Please refer to shown in Fig. 3, two elasticity positioning body 211 each interval 180 degree, and each elasticity positioning body 211 has relative two tilted guide surface 211c and relative both ends of the surface 211d; Wherein, two tilted guide surface 211c are obliquely extended to respectively a side of rotating cam 21 from end face 211a both sides, and both ends of the surface 211d is from extending to rotating cam 21 outer rims near non-circular hole 213 edges.If the line direction of two elasticity positioning bodies 211 of rotating cam 21 defines a rotation axis C1, the line direction of two convex supporting parts 201 of stationary cam 20 defines a fixed axis C2, rotation axis C1 is by both ends of the surface 211d, and between rotation axis C1 and fixed axis C2, have an included-angle-changeable Θ (not shown), this included-angle-changeable Θ can rotate and change relative to stationary cam 20 along with rotating cam 21; By above-mentioned composition to form short stroke pivot device 100 of the present utility model.
Short stroke pivot device 100 of the present utility model, as shown in Figures 1 and 2, it more can comprise that a rotation is installed in the fixed pedestal 5 of rotating shaft 1; In the present embodiment, fixed pedestal 5 has the first relative end face 51 and the second end face 52, and the first end face 51 has one first confined planes 513 and one second confined planes 514.The first end face 51 and the second end face 52 run through respectively and are formed with one first axis hole 511 and one second axis hole 521, so that rotating shaft 1 runs through, are arranged at the first axis hole 511 and the second axis hole 521; Wherein, because the shape of the circular port (not label) of the first axis hole 511 and the circular port (not label) of the second axis hole 521 is not corresponding with the sectional shape of the non-circular axostylus axostyle 12 of rotating shaft 1, fixed pedestal 5 can't be rotated along with rotating shaft 1.The first end face 51 is in the more other assembly hole 512 that is provided with of the first axis hole 511, the second end face 52 is in the more other positioning hole 522 that is provided with of the second axis hole 521, so that the fixed end 30 of torque spring 3 plugs, be fixed in positioning hole 522, and stationary cam 20 is fixedly arranged on assembly hole 512.In the present embodiment, torque spring 3 is mounted between the first end face 51 and the second end face 52, and on torque spring 3, more can be provided with a torsional wheel 6, and the periphery of torsional wheel 6 has a plurality of spaced locating slots 61; Wherein, because plugging, the fixed end 30 of torque spring 3 is fixed in positioning hole 522, and the free end 31 of torque spring 3 is fixed on those locating slots 61 one of them, therefore the relative fixed pedestal 5 of fixed end 30 of torque spring 3 does not rotate, the free end 31 of torque spring 3 can together rotate with rotating shaft 1.In addition, the periphery of stationary cam 20 more can be equipped with a projection 203 that is sticked in assembly hole 512, with so that the relative fixed pedestal 5 of stationary cam 20 do not rotate.
Short stroke pivot device 100 of the present utility model more can comprise one be fixed on rotating shaft 1 and with the runing rest 300 of rotating shaft 1 interlock; Preferably, runing rest 300 is fixed on the non-circular axostylus axostyle 12 of rotating shaft 1, makes fixed pedestal 5 between positioning device 2 and runing rest 300, and runing rest 300 is synchronizeed rotation with rotating shaft 1.
The positioning device 2 of short stroke pivot device 100 of the present utility model more can comprise a limited wheel 22, as shown in Figures 1 and 2, it has a non-circular guide hole 222 that can pass for the non-circular axostylus axostyle 12 of rotating shaft 1 and together rotates with rotating shaft 1, and rotating cam 21 is arranged between limited wheel 22 and stationary cam 20; In the present embodiment, preferably, the periphery of limited wheel 22 more can be equipped with a limiting stopper 221, and limiting stopper 221 is swung between the first confined planes 513 of fixed pedestal 5 and the second confined planes 514, in order to limit the rotation angle (being the pendulum angle of restricting rotation support 300) of rotating shaft 1.
The utility model is when assembling, as shown in Figures 1 and 2, first the non-circular axostylus axostyle of rotating shaft 1 12 is passed to the second axis hole 521 of fixed pedestal 5, then torque spring 3 and torsional wheel 6 are successively set on the non-circular axostylus axostyle 12 of rotating shaft 1, and the fixed end 30 that makes torque spring 3 is inserted in positioning hole 522, the free end 31 of torque spring 3 is planted into one of them of those locating slots 61 of torsional wheel 6, then non-circular axostylus axostyle 12 is passed to the first axis hole 511 of fixed pedestal 5, torque spring 3 is mounted between first end face 51 and the second end face 52 of fixed pedestal 5, afterwards again by stationary cam 20, rotating cam 21 and limited wheel 22 are successively set on non-circular axostylus axostyle 12, and the projection 203 that makes stationary cam 20 is inserted in the assembly hole 512 of fixed pedestal 5, the limiting stopper 221 of limited wheel 22 is between first confined planes 513 and the second confined planes 514 of fixed pedestal 5,
The first axis hole 511 is run through in the screw section 121 of non-circular shaft bar 12, then pad 7 is arranged on non-circular axostylus axostyle 12, and nut 4 lockings can be completed to assembling on screw section 121.Short stroke pivot device 100 provided by the utility model, assemble easily simple to operate, therefore can make manufacture cost decline to a great extent.
In addition, please consult again shown in Fig. 3, each elasticity positioning body 211 of rotating cam 21 has relative two tilted guide surface 211c and relative both ends of the surface 211d, wherein between a side of one of them and the rotating cam 21 of the both ends of the surface 211d of each elasticity positioning body 211, more can there is a fluting A, and make elasticity positioning body 211 relatively rotate cam 21, have more compressibility and rebound elasticity, therefore, the access times of convex supporting part 201 clip/disengaging positioning hole 211b can be significantly increased, and then the working life of rotating cam 21 and stationary cam 20 can be extended.In addition, due to splendid compressibility and the rebound elasticity of elasticity positioning body 211 itself, the convex supporting part 201 that can make stationary cam 20 more firmly clip in corresponding positioning hole 211b, therefore be difficult for departing from positioning hole 211b because external force minor impact makes convex supporting part 201.Moreover, because two tilted guide surface 211c of elasticity positioning body 211 have one stroke distance (not label) with positioning hole 211b respectively, the apical margin (not label) that is the tilted guide surface 211c of elasticity positioning body 211 is short to the distance of positioning hole 211b, therefore the convex supporting part 201 of stationary cam 20 only needs to rotate small angle and gets final product clip/the depart from positioning hole 211b of corresponding rotating cam 21, in other words, collocation is with reference to figure 5A and Fig. 6 A, can make runing rest 300 be folded in the stroke of electronic equipment shorter, therefore not only can reach labour-saving effect, more because reducing the abrasion between stationary cam 20 and rotating cam 21, and increase the service life.
Please refer to Fig. 5 A, Fig. 5 B, Fig. 6 A and Fig. 6 B, Fig. 5 A is the action schematic sectional view () of the utility model short stroke pivot device, Fig. 5 B is the schematic diagram of the utility model short stroke pivot device collocation electronic equipment of Fig. 5 A, Fig. 6 A is the action schematic sectional view (two) of the utility model short stroke pivot device, and Fig. 6 B is the schematic diagram of the utility model short stroke pivot device collocation electronic equipment of Fig. 6 A.First, as shown in Fig. 5 A and Fig. 5 B, the utility model short stroke pivot device 100 is when being used, and its fixed pedestal 5 can be installed in the backboard 201 of an electronic equipment 200, and rotating shaft 1 can set firmly a runing rest 300.Please refer to Fig. 5 A, Fig. 5 B and arrange in pairs or groups shown in Fig. 3, when runing rest 300 is bestowed rotation pressure in rotating shaft 1, runing rest 300 can drive rotating shaft 1 to rotate (as Fig. 5 A arrow direction), because the non-circular axostylus axostyle 12 of rotating shaft 1 and the non-circular hole 213 of rotating cam 21 are non-circular, therefore rotating cam 21 also can be along with synchronous rotation, but the first axis hole 511 and the circular hole 202 of stationary cam 20 of fixed pedestal 5 are all circle, and fixed pedestal 5 can be along with rotation with stationary cam 20.Because the fixed end 30 of torque spring 3 is fixed on fixed pedestal 5, therefore the free end 31 of torque spring 3 can twist and save up strength elastic force because of the drive of torsional wheel 6, now, because rotating cam 21 rotates relative to consolidating moving cam, and the included-angle-changeable Θ (not shown) between rotation axis C1 (Fig. 3) and this fixed axis C2 (Fig. 3) is dwindled, therefore each convex supporting part 201 can slide to tilted guide surface 211c along the horizontal portion of sliding 212, and move towards positioning hole 211b direction along tilted guide surface 211c, suppress elasticity positioning body 211 simultaneously, and make elasticity positioning body 211 compressive deformations, when each convex supporting part 201 arrives at the end face 211a of elasticity positioning body 211, rotating cam 21 continues to rotate a small angle relative to stationary cam 20, as shown in Fig. 6 A and Fig. 6 B, can make convex supporting part 201 turn to corresponding positioning hole 211b from the apical margin of tilted guide surface 211c, and clip is in positioning hole 211b, thereby provide the function of an automatic blocking, make runing rest 300 fixedly be accommodated in the backboard 201 of electronic equipment 200.
Similarly, please refer to Fig. 6 A, Fig. 6 B and arrange in pairs or groups shown in Fig. 3, when runing rest 30, bestowing reverse rotation pressure in rotating shaft 1 (as Fig. 6 A arrow direction), can make each convex supporting part 201 depart from corresponding positioning hole 211b; Wherein, because the positioning hole 211b of elasticity positioning body 211 is short to the distance of tilted guide surface 211c, therefore runing rest 300 only needs to bestow a small amount of rotation pressure in rotating shaft 1 again, can make the self-align hole 211b of each convex supporting part 201 turn to tilted guide surface 211c, and slide to the horizontal portion of sliding 212 along tilted guide surface 211c; Then, as shown in Fig. 5 A and Fig. 5 B, restoring force by torque spring 3 makes rotating shaft 1 return back to origin-location (being the position that the limiting stopper 221 of limited wheel 22 is resisted against the second confined planes 514), now, runing rest 300 also can start by the restoring force of torque spring 3 and away from electronic equipment 200, and in order to support electronics 200.
In sum, the utility model short stroke pivot device 100 has person easy to use and can utilize easily and singlehanded just runing rest 300 is started to the function with support electronics 200.Be with, the utility model short stroke pivot device 100, only when runing rest 300 is accommodated in electronic equipment 200, just can make rotating cam 21 elasticity positioning body 211 two positioning hole 211b respectively with the corresponding clip of two convex supporting parts 201 of stationary cam 20, form the situation of automatic blocking, therefore the utility model short stroke pivot device 100 provides unidirectional automatic blocking function.
On the other hand, please consult again shown in Fig. 1, the utility model short stroke pivot device 100 is the watching angle hobby of visual user to electronic equipment 200 also, by nut 4, be fixed on the screw section 121 of rotating shaft 1, and torque spring 3 is produced to oppressive force, make rotating shaft 1 rest on arbitrary rotation angle, and then make runing rest 300 rest on arbitrary rotation angle, that is to say runing rest 300 relatively electronic equipment 200 under unspecified angle, locate and can not topple over, therefore can reach the object of the watching angle of adjusting electronic equipment 200.Whereby, short stroke pivot device 100 of the present utility model has and can make the runing rest 300 of electronic equipment 200 reach automatically the function that starts, cushions pivotable and locating effect.
The utility model separately provides a positioning device 2 that is applied to above-mentioned short stroke pivot device 100, and the practical structures of positioning device 2 and make flowing mode and specifically describe in above-described embodiment, therefore do not repeat at this.
In addition, to specify that the direction term that the utility model is mentioned, such as: upper and lower, left and right, front or rear etc., is only the direction with reference to accompanying drawing here.Therefore, the direction term of use is for explanation, to be not used for limiting the utility model.
Therefore there is feature described as follows and function by double-shaft type pivot device of the present utility model:
One, short stroke pivot device of the present utility model, the positioning hole that it utilizes convex supporting part clip/disengaging elasticity positioning body, reaches and can make runing rest easily be accommodated in electronic equipment, and can be easily electronic equipment is opened relatively object.
Two, short stroke pivot device of the present utility model, its assembling is easily simple to operate, and manufacture cost and built-up time are declined to a great extent.
Three, short stroke pivot device of the present utility model, its end face by elasticity positioning body has fluting, reaches and makes the more stable clip elasticity of convex supporting part positioning body, and reduce the abrasion between stationary cam and rotating cam, increases the service life.
Four, short stroke pivot device of the present utility model, it only, when runing rest is accommodated in electronic equipment, just can make convex supporting part clip/disengaging elasticity positioning body, therefore form the short stroke pivot device of one-way automatic locking function.
In sum, the real important document that has met utility model patent of the utility model is filed an application in accordance with the law.Disclosed content only, it is only the utility model preferred embodiment, from not limiting claim scope of the present utility model with this, the equalization of therefore doing according to the utility model claim scope changes or modifies, and still belongs to the scope that the utility model is contained.
Claims (10)
1. a short stroke pivot device, is characterized in that, comprising:
One rotating shaft;
One positioning device, it is sheathed on this rotating shaft, this positioning device comprises can a counterrotating stationary cam and a rotating cam, one side of this stationary cam is provided with two convex supporting parts, this rotating cam is provided with two elasticity positioning bodies in abutting connection with a side of this stationary cam, described two elasticity positioning bodies bridge at this rotating cam with arcuation, between described two elasticity positioning bodies, form the horizontal portion of sliding, described in each, the end face of elasticity positioning body has a positioning hole, and this rotating shaft is together rotated with this rotating cam through this stationary cam; And
One torque spring, it has a fixed end and a free end, and this torque spring is sheathed on this rotating shaft and this free end and this rotating shaft and together rotates;
Wherein, described in each, convex supporting part slides and suppresses this corresponding elasticity positioning body along this portion of sliding when rotation pressure is bestowed in this rotating shaft, and clip is in this positioning hole;
Wherein, described in each, convex supporting part departs from this corresponding positioning hole when reverse rotation pressure is bestowed in this rotating shaft, and makes this rotating shaft return back to origin-location by the restoring force of this torque spring.
2. short stroke pivot device as claimed in claim 1, it is characterized in that, described two elasticity positioning body intervals 180 degree, the line direction of described two elasticity positioning bodies defines a rotation axis, the line direction of described two convex supporting parts defines a fixed axis, between this rotation axis and this fixed axis, has an included-angle-changeable.
3. short stroke pivot device as claimed in claim 2, it is characterized in that, described in each, elasticity positioning body has relative two tilted guide surfaces and two relative end faces, described two tilted guide surfaces are obliquely extended to this rotating cam from these end face both sides respectively, this rotation axis is perpendicular to described two end faces, between one of them of described two end faces and this rotating cam, have a fluting, described two tilted guide surfaces have one stroke distance with this positioning hole respectively.
4. short stroke pivot device as claimed in claim 3, it is characterized in that, this rotating shaft has a circular axostylus axostyle and a non-circular axostylus axostyle, this non-circular axostylus axostyle stretches out from one end of this circle axostylus axostyle, this stationary cam has a circular hole passing for this circle axostylus axostyle, and this rotating cam has a non-circular hole passing for this non-circular shaft and together rotates with this rotating shaft.
5. short stroke pivot device as claimed in claim 4, is characterized in that, the end of this non-circular axostylus axostyle is provided with a screw section, and a nut is fixed on this screw section makes this torque spring produce oppressive force, and makes this rotating shaft rest on arbitrary rotation angle.
6. short stroke pivot device as claimed in claim 4, it is characterized in that, also comprise that a rotation is installed in the fixed pedestal of this rotating shaft, this fixed pedestal has the first relative end face and the second end face, this first end face and this second end face run through respectively and are formed with one first axis hole and one second axis hole, this first end face is in the other assembly hole that is provided with of this first axis hole, this second end face is in the other positioning hole that is provided with of this second axis hole, this rotating shaft runs through and is arranged at this first axis hole and this second axis hole, the fixed end of this torque spring plugs and is fixed in this positioning hole, this stationary cam is fixedly arranged on this assembly hole, and the periphery of this stationary cam is equipped with the projection that is sticked in this assembly hole, with so that this stationary cam relatively this fixed pedestal do not rotate.
7. short stroke pivot device as claimed in claim 6, it is characterized in that, this positioning device also comprises a limited wheel, this limited wheel has a non-circular guide hole passing for this non-circular shaft and together rotates with this rotating shaft, this rotating cam is between this limited wheel and this stationary cam, and the periphery of this limited wheel is equipped with a limiting stopper, this first end mask of this fixed pedestal has one first confined planes and one second confined planes, the displacement between this first confined planes and this second confined planes of this limiting stopper, to limit the rotation angle of this rotating shaft.
8. short stroke pivot device as claimed in claim 7, it is characterized in that, on this torque spring, be also provided with a torsional wheel, the periphery of this torsional wheel has a plurality of spaced locating slots, the free end of this torque spring is fixed on one of them of described a plurality of locating slots, so that the free end of this torque spring and this rotating shaft are together rotated, and this short stroke pivot device also comprise one be fixed on this rotating shaft and with the runing rest of this rotating shaft interlock, this fixed pedestal is fixedly arranged on an electronic equipment, this rotating shaft drives this rotating cam synchronously to rotate when this runing rest is bestowed rotation pressure in this rotating shaft, make described in each convex supporting part clip in this positioning hole of correspondence, this rotation axis and this fixed axis are overlapping, this runing rest is accommodated in this electronic equipment, described in each, convex supporting part departs from this corresponding positioning hole when this runing rest is bestowed reverse rotation pressure in this rotating shaft, and make this rotation axis return back to origin-location by the restoring force of this torque spring, this runing rest supports this electronic equipment.
9. a positioning device, is applied to, in a short stroke pivot device, it is characterized in that, this positioning device comprises:
One stationary cam, one side is provided with two convex supporting parts; And
One rotating cam, it can rotate relatively with this stationary cam, this rotating cam is provided with two elasticity positioning bodies in abutting connection with a side of this stationary cam, described two elasticity positioning bodies bridge at this rotating cam with arcuation, between described two elasticity positioning bodies, form the horizontal portion of sliding, described in each, the end face of elasticity positioning body has a positioning hole;
Wherein, this short stroke pivot device comprises a rotating shaft and is sheathed on a torque spring of this rotating shaft, and this rotating shaft is together rotated with free end and this rotating cam of this torque spring through this stationary cam;
Wherein, described in each, convex supporting part slides and suppresses this corresponding elasticity positioning body along this portion of sliding when rotation pressure is bestowed in this rotating shaft, and clip is in this positioning hole;
Wherein, described in each, convex supporting part departs from this corresponding positioning hole when reverse rotation pressure is bestowed in this rotating shaft, and makes this rotating shaft return back to origin-location by the restoring force of this torque spring.
10. positioning device as claimed in claim 9, it is characterized in that, described two elasticity positioning body intervals 180 degree, the line direction of described two elasticity positioning bodies defines a rotation axis, the line direction of described two convex supporting parts defines a fixed axis, between this rotation axis and this fixed axis, there is an included-angle-changeable, and described in each, elasticity positioning body has relative two tilted guide surfaces and two relative end faces, described two tilted guide surfaces are obliquely extended to this rotating cam from these end face both sides respectively, this rotation axis is perpendicular to described two end faces, between one of them of described two end faces and this rotating cam, there is a fluting, described two tilted guide surfaces have one stroke distance with this positioning hole respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320592426.1U CN203585058U (en) | 2013-09-24 | 2013-09-24 | Short stroke pivoting device and positioning device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320592426.1U CN203585058U (en) | 2013-09-24 | 2013-09-24 | Short stroke pivoting device and positioning device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203585058U true CN203585058U (en) | 2014-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320592426.1U Expired - Fee Related CN203585058U (en) | 2013-09-24 | 2013-09-24 | Short stroke pivoting device and positioning device thereof |
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| Country | Link |
|---|---|
| CN (1) | CN203585058U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108468707A (en) * | 2018-06-29 | 2018-08-31 | 联想(北京)有限公司 | A kind of turning gear and electronic equipment |
-
2013
- 2013-09-24 CN CN201320592426.1U patent/CN203585058U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108468707A (en) * | 2018-06-29 | 2018-08-31 | 联想(北京)有限公司 | A kind of turning gear and electronic equipment |
| CN108468707B (en) * | 2018-06-29 | 2021-04-13 | 联想(北京)有限公司 | Rotating shaft device and electronic equipment |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140507 Termination date: 20170924 |