Summary of the invention
[problem that will solve]
This invention relates to spanner.The device of installation or removal hold-down nut in the object, for example: for the tire wheel at the wheel hub fixed vehicle, hold-down nut is installed in from the outstanding various fixed screw shaft of wheel hub or the device that separates from the fixed screw axle.When installing and fixing nut, be not by vision, but the empty rotation status by carrier wheel, the complete tight condition of perception hold-down nut rapidly provides the spanner of optimum convenience.
[problem solution]
For reaching above target, the present invention's first example spanner comprises: cylindrical shape cover 10, this cylindrical shape cover 10 are formed with peristome 12 and pass the supporting walls 14 that is formed with the little rotation via 13 of ratio open portion 12 diameters; Be detachably connected to the cap 20 of the peristome of described cylindrical shape cover, the central portion of described cap 20 passes and is formed with rotation via 21; In the rotation via 21 of cap 20, can be inserted with power shaft 60 the earliest with seesawing, this the earliest an end of power shaft 60 be positioned at cylindrical shape cover 10 and have the 1st edge part 61 with concavo-convex outer surface 62, the other end of described power shaft the earliest 60 is positioned at the outside of described cap 20, and be connected with operating grip 80,80A; Be installed in the operation gear 63 in the cylindrical shape cover 10, have gear part on the external cylindrical surface of this operation gear 63 and have the 2nd edge part 64, this concavo-convex outer surface 65 and concavo-convex outer surface 62 mutual concavo-convex combinations of power shaft the earliest with concavo-convex outer surface 65; Be installed in the final rotating shaft 45 in the rotation via 13 of described cylindrical shape cover 10, described final rotating shaft 45 is rotated through the revolving force that revolving force increases the described operation gear 63 of device 40 by conduction, and an end of described final rotating shaft 45 stretches out the rotation via 13 of described cylindrical shape cover 10 and is connected to pullover 50; Be installed in the elastic device 70 on the outer surface of the power shaft the earliest 60 between the described cap 20 and first edge part 61, this elastic device 70 is used for the bonding state between the concavo-convex outer surface 65 of the concavo-convex outer surface 62 of resiliency supported the 1st edge part 61 and the 2nd edge part 64; Be used for making the power shaft the earliest that optionally makes power shaft 60 the earliest can seesaw and forbid that power shaft 60 the earliest seesaws when power shaft 60 can rotate the earliest stop control/decontrol 90; Such condition is satisfied at the inclination angle that comprises the concavo-convex outer surface 65 of the concavo-convex outer surface 62 of described power shaft the earliest 60 and described operation gear 63, wherein when tightening to nut or fixed screw on the object, described operation gear 63 is by because the concavo-convex outer surface 65 of the concavo-convex outer surface 62 of the described power shaft the earliest 60 that the elastic force of described elastic device 70 engages and described operation gear 63 and rotating with described power shaft the earliest 60, and when nut or fixed screw had tightened on the described object, the concavo-convex outer surface 62 of described power shaft the earliest 60 and the concavo-convex outer surface 65 of described operation gear 63 overcame the elastic force of described elastic device 70 and break away from.
Preferably, described elastic device 70 comprises a pair of disc spring 71,72 with through hole 71a, 72a of passing for power shaft 60 the earliest, and described disc spring 71,72 is central portion separately and the taper that edge part is in contact with one another.
Preferably, power shaft stops control/decontrol 90 and has the earliest: pass the through hole 91 that cap 20 forms along the vertical direction of power shaft 60 the earliest, this through hole 91 forms the passage 91a that is communicated with the rotation via 21 of cap 20; The rotatable bar 93 that is installed in the rotation via 21, cap 20 is stretched out at the two ends of this bar 93, and this bar 93 has not the recess 92 that the inner cylinder face with rotation through hole 21 interferes; Stop control flume 94 around what the outer surface of power shaft 60 the earliest formed, this stops control flume 94 and optionally contacts with described bar 93 according to the rotation status of bar 93; Thus, when described bar 93 is charged into when rotating under the state that stops control flume 94 in its outside, described power shaft the earliest 60 can not seesaw, when described bar 93 when described recess 92 rotates under the state that stops control flume 94, described power shaft the earliest 60 can seesaw.
Example one according to the present invention, when installing and fixing the nut operation, not to pass through vision, but the empty rotation status by carrier wheel, the complete tight condition of rapid perception hold-down nut is when providing optimum convenience, no matter the homologue hold-down nut is in a clockwise direction, still counterclockwise install and all can use, hold-down nut installation/detached job is become be more prone to.
It is as follows that example two of the present invention can form spanner.One side has peristome, and it is little that opposite side has diameter ratio open portion, and to have the supporting walls of rotation to the guide hole be the cylindrical shape cover of one, can with the opening installation or removal of cover.Central portion rotation can be inserted to the guide hole and be made cylindrical shape cover and the rotation of above shape cover move forward and backward and rotate to the guide hole.One end position and open interior, the other end are positioned at shape cover inside and the adjustment handle of certain-length are set.One end has the initial power shaft of jog, and the outer axial face formative gear interconnects with initial power shaft jog.Can make in the carrier wheel and the supporting walls rotation of the inner rotation of shape cover and insert rotation to the guide hole.Outside protrusion of shape cover opposite side, and obtain carrier wheel rotation dynamics, thereby drive the pullover combination of corresponding screw hold-down nut both forward and reverse directions rotation, comprise concavo-convex resilient bonding state between the final output shaft that makes pullover rotation and initial power shaft and carrier wheel and the elastic device that is provided with in initial power shaft outer axial face.Form the jog inclined plane of initial power shaft and carrier wheel, possess when making initial power shaft,, make the carrier wheel rotating conditions according to the elastic force of elastic device by the rotation of the tightening direction of homologue hold-down nut; And, when homologue hold-down nut tightening direction can not rotate again, contact when mobile according to the concavo-convex position of elastic device compression stress carrier wheel jog and initial power shaft, possess the carrier wheel of making to the empty rotating conditions of initial power shaft.
Example two according to the present invention, when installing and fixing the nut operation, not to pass through vision, but the empty rotation status by carrier wheel, the complete tight condition of rapid perception hold-down nut is when providing optimum convenience, no matter the homologue hold-down nut is in a clockwise direction, still counterclockwise install and all can use, hold-down nut installation/detached job is become be more prone to.
[effect]
By the spanner of this invention, reach following effect.
The first, the present invention is the device at object installation or removal hold-down nut, for example: when the tire of wheel hub fixed vehicle wheel, according to the screw combination hold-down nut is installed in from the outstanding various fixed screw shaft of wheel hub or from the fixed screw axle and unclamps screw.When carrying out the operation of fixed screw, be not the sky rotation by eyes but by travelling gear, the tight condition of perception hold-down nut increases very big convenience immediately.
The second, turn clockwise or be rotated counterclockwise in the installing type, can only select a kind of, so installation or removal hold-down nut easily.
The 3rd, turn clockwise or be rotated counterclockwise in the installing type, can select arbitrarily, so installation or removal hold-down nut easily.
The specific embodiment
According to annex map, describe practical operation in detail below.
[the 1st example]
The tire wheel of one train of vehicles is fixed on wheel hub, when the various fixed screw shaft installation or removal hold-down nut that wheel hub is given prominence to, uses the present invention's product.When carrying out the fixed screw installation exercise, be not, but according to the empty rotation status of transmission gear, whether perception immediately tighten the fixed screw axle fully, significantly improves convenience according to vision.In addition clockwise or be rotated counterclockwise, can use, make it to install and fix easily the operation of nut or separation.
Spanner such as Fig. 1 or Figure 10 in the first practical operation example of the present invention comprise cylindrical shape cover 10 and cap 20, and power shaft 60 the earliest, travelling gear 63, and output shaft 45 the earliest, elastic mean 70, power shaft stops/the solution instrument at first.
A cover side of 10 is made peristome 12, and opposite side has diameter than the supporting walls 14 of the little rotation of the peristome of a side to guide hole 13.
The cap 20 of energy installation or removal cover 10 peristomes 12, the rotation that connects central portion is to guide hole 21.Here according to screw fashion in conjunction with or the cap 20 of peristome 12 medial surfaces of separation hood 10.
The rotation of power shaft 60 insertion caps 20 the earliest can advance or retreat or rotate behind guide hole 21.One end is positioned at the peristome 12 of cap 20, and the other end is positioned at the outside of cover 10.The other end is installed the operating grip of certain-length, and the lateral outer at one section position has and spues the jog 62 that the cylinder direction of certain thickness first flange position 61 and 61 outsides, the first flange position forms.
Above-mentioned jog 62 is a zigzag, and gradient is less, and the angle between the inclined plane of formation jog can form the obtuse angle, for example can form 120 degree, though inclined plane and the 1st flange position 61 angles can become 30 degree, is not limited to these here.
Carrier wheel 63 is at the gear position of outer cylinder, in order to protrude certain thickness the 2nd edge part 64 that forms and the jog 62 of power shaft 60 the earliest in conjunction with outside, transference first edge part 61 ends, the outside of the 2nd edge part 64 has the jog 64 of cylinder direction, in the rotation of the inside of cover 10.
Above-mentioned jog 65 is and jog 62 concavo-convex combinations of power shaft 60 the earliest to form the little zigzag of gradient.Angle between the inclined plane of jog 65 can form the obtuse angle, for example can form 120 degree, though inclined plane and the 1st flange position 61 angles can become 30 degree, is not limited to these here.
Spring assembly 70: for the resilient support concavo-convex bonding state of 63 of power shaft 60 and travelling gears the earliest, the Shen of the power shaft the earliest mounting spring device between the above-mentioned cap 20 and first edge part 61.
The elastic device that uses among the present invention has allows power shaft the earliest 60 connect the tube hole 71a and the 72a of central parts, the marginal portion is in contact with one another in addition, power shaft 60 can slide in cap 20, and the isolation of pars intermedia reduces gradually, and by the dish spring 71,72 of elastic material.
The external force of a certain size that does not have that each outside provides toward central authorities as fruit tray spring 71,72, central part can be with isolation, elastic force is provided, power shaft 60 can provide revolving force to carrier wheel the earliest, install and fix the direction of nut in the above-mentioned object, after running into the tire wheel surface, the phenomenon that can not continue to rotate can take place.At this moment the external force of Chan Shenging can provide central part and be in contact with one another to central portion, the elastic force of camber of spring, and in time power shaft 60 is in rotation the earliest, and travelling gear also can empty rotate.
Condition 1: during the direction rotation of power shaft 60 when installing and fixing nut in the object the earliest, among the present invention by power shaft 60 and travelling gear 63 each concavo-convex positions that form 62,65 can be according to the elastic force rotations of elastic mean 70 the earliest.
Condition 2: install and fix the direction of nut in the object, during contact tire wheel surface, according to the compression stress of elastic mean 70, the jog 66 of carrier wheel 63 and the earliest the jog 62 of power shaft 60 can contact with each other and move, make power shaft 60 empty rotations the earliest.
In order to satisfy each concavo-convex position of these condition inclined design.
Each concavo-convex 62,65 position such as Fig. 3, Fig. 4, Fig. 7, Fig. 8, shown in Figure 9, the zigzag bending is arranged, gradient is little, is satisfying under the prerequisite of above-mentioned condition, can each multiple angle of inclination.
Because each concavo-convex position 62 that power shaft the earliest 60 among the present invention and carrier wheel 63 form, 63 satisfy condition 1 and 2, so direction when installing and fixing nut, behind the wheel surface of contact tire, not under the state of rotation, when rotating the earliest power shaft 60 so that the direction of unclamping hold-down nut in the object is contrary, for allow the jog 65 of carrier wheel 63 and the earliest the concavo-convex position 62 of power shaft 60 keep bonding states, not only to allow power shaft 60 the earliest in the rotation guide hole 21 of cap 20 just/contrary rotation, also to have and control/cancel the earliest that power shaft advances/laggard device 90.
Of the present invention stopping/the removing device 90 of power shaft the earliest is connected with passage 91a by rotation guide hole 21 is inner by partial section, with the vertical direction of direction of principal axis of power shaft 60 the earliest, passes the intercommunicating pore 91 of cap 20 formation; Rotation insertion in the intercommunicating pore 91a, give prominence to toward cap 20 at two ends, prevents to produce interference with passage 91a rotation to guide hole 21 inner cylinder, at the bars 93 of inlet 92 making; Rotation forms all inlets to the outer cylinder of the power shaft the earliest 60 of the inner cylinder correspondence of guide hole 21, and by passage 91a, gives prominence to guide hole 21 inside with the rotation of cap 20, and stop control flume 94 formations in the semicircle that contacts with the outside elder generation of bar 93.
Power shaft stops control/decontrol and satisfies following condition the earliest.
Condition 3: when bar 93 is inserted in through hole 91 back rotations,, make the rotation of cap 20 can run into the inner face that stops control flume 94 to the outside of the outstanding bar 93 in the inside of guide hole 21 by passage 91a.
Condition 4: during power shaft rotation the earliest, stop control flume 94 inner faces and run into the outside of the rotation of cap 20 by passage 91a to the outstanding bar 93 in the inside of guide hole 21.
Condition 5: power shaft 60 advances in the rotation guide hole 21 of cap 20 or when retreating, the partial section of power shaft 60 passes the inside of inlet 92 the earliest the earliest.
Here the symbol 95 that does not have to introduce is positioned at an end of bar 93, the handle that the person of being to use operates, and what do not introduce 96 is that rotation outstanding other end at bar 93 in guide hole 21 of cap 20 installs and fixes screw.
By handle 95 and fixed screw 96, bar 93 is can prevent to move to rotation guide hole 21 length directions at rotation guide hole 21.
In this invention, increase device 40 by revolving force and transmit the revolving force of carrier wheels 63 to final output shaft 45, showing 2 revolving forces down increases the relevant example of devices 40.
First example: revolving force increases device 40 as shown in Figure 1, inner cylinder length direction by internal gear 11[cover 10, form at partial section], first swivel plate 41[cover 10 is for rotary setting], the multiple first pinion gear 43[combines with internal gear 11 tooth prefaces in order to convey carrier wheel 63, with pivot pin 42 is media, the cylinder direction rotation at the position, the place ahead of first swivel plate 41], ledge in the heart in central gear 44[the 1st swivel plate 41 back sides], the 2nd swivel plate (can be in cover 10 inner rotations, be positioned at the end of the final output shaft 45 corresponding with central gear 44, isolate with the 1st swivel plate 41), multiple the 2nd pinion gear 43 ' [combines with central gear 44 common tooth prefaces, gives the 11 tooth preface combinations of internal gear position simultaneously, with pivot pin 42 ' is media, the cylinder direction rotation at the position, the place ahead of the 2nd swivel plate 41] constitute.
Revolving force increases in the 1st swivel plate 41 of device 40, the pivot pin 42 and the 1st swivel plate that can allow the 1st pinion gear 43 rotate are one, it is the part of giving prominence to, in the 2nd swivel plate 41 ', the pivot pin 42 and the 1st swivel plate that can allow the 2nd pinion gear rotate are one, be the part of giving prominence to, but not explanation in addition on the drawing.
And revolving force increases in the 1st swivel plate 41 of device 40, the pivot pin 42 and the 1st swivel plate that can allow the 1st pinion gear 43 rotate are one, are the parts of giving prominence to, in the 2nd swivel plate 41 ', the pivot pin 42 and the 1st swivel plate that can allow the 2nd pinion gear rotate are one, are the parts of giving prominence to.(with reference to figure 1) do not have the symbol 46 the introduced binding site at final output shaft 45 here, can combine with the angle-shaped groove 51 of an end of pullover 50.
To introduce the effect of the revolving force increase device 40 in first example in the present invention's product below.
At first carrier wheel 63 is clockwise or when being rotated counterclockwise, and majority the 1st pinion gear that combines with carrier wheel tooth preface can be with rotation simultaneously, revolution around the carrier wheel.When most the 1st pinion gear 43 rotations were revolved round the sun simultaneously, the 1st swivel plate 41 can be with most the 1st pinion gear 43 equidirectionals rotations.In this process, the gear ratio of carrier wheel 63 and the 1st pinion gear 43, at first speed can change (deceleration), and the 1st swivel plate 41 and power shaft 60 the earliest can be with low speed rotation, but revolving force can increase.During 41 rotations of the 1st swivel plate, can be at the central gear 44 of this installation with the direction of rotation rotation of the 1st swivel plate 41.During central gear 44 rotations, majority the 2nd pinion gear 43 that combines with these central gear 44 tooth prefaces ' automatically simultaneously can be around central gear 44 revolution.
' revolution simultaneously automatically, the 2nd swivel plate 41 ' can be with the identical direction rotation of the 2nd pinion gear 43 ' revolution direction for the 2nd pinion gear 43.
At this moment, carrier wheel 63 and the 2nd pinion gear 43 ' the gear ratio, the 2nd swivel plate 43 ' can 2 speed changes (decelerations), at first with the 1st swivel plate 41 relatively, understand with low speed rotation, but revolving force can increase.So as first example of the present invention, increase the formation of device 40 by revolving force, final output shaft 45 is compared with power shaft 60 the earliest, can even use very little strength, also can rotate hold-down nut with bigger revolving force rotation.Can change the direction of rotation of hold-down nut according to the direction of rotation of carrier wheel 63 in addition.
As shown in figure 10, the 1st swivel plate 41 central authorities have 5 dihedral through hole 41a in revolving force increase device 40 structures, are combined in the polygonal through hole 41a of central gear 44, can make the joint portion 44a of 5 angular appearance.In addition as shown in figure 10, revolving force increases the 2nd swivel plate 41 in device 40 structures ' a central authorities has 5 dihedral through hole 41a, in the through hole 41 ' a of the 2nd swivel plate 41 ' that the joint portion of final output shaft 45 46 is opposite, can form the joint portion 45a of 5 angular appearance.
In addition as shown in figure 12, operating grip 80A passes the through hole 60b of the other end of power shaft 60 the earliest, power shaft is vertical during installation with the earliest, one end of operating grip has and the pullover connecting portion that is connected 81, and the other end of operating grip 80A is installed the detachable assist handle 85 vertical with operating grip 80A.
Connect pullover reason at operating grip 80A: utilize pulloverly 50, unclamp or tighten in the process of hold-down nut,, can use temporarily if when the phenomenon of the spanner fault in this invention takes place.When using the spanner of current invention to tighten hold-down nut fully or unclamp the hold-down nut of tightening fully, hold-down nut connect pullover 50 ' state under, can use operating grip.The main purpose of operating grip 80A is the parts power shaft 60 the earliest of rotary spanner in addition.
As Fig. 1 or shown in Figure 12, operating grip does not combine with power shaft 60 the earliest, and the angle-shaped groove 60a of the other end of power shaft 60 inlet inserts the earliest, and 80a constitutes by the joint portion.That is to say can select multiple according to operating grip 80.
The 1st example of the present invention such as Fig. 1, shown in Figure 3, the outside of cover 10 is vertical with certain-length, prolongs and makes support bar, at the position, end of this support bar 15 slotted hole 151.
After inserting other fixing pullover 30 connecting screws 31 of giving prominence in the slotted hole 151, fixing pullover 30.
Fixing pullover 30 is different with above-mentioned pullover 50, are used for others.These fixing pullover 30 wheel hubs are from outstanding most fixed screw axles, and folder is one in hold-down nut, and pullover 50 in order to install at the fixed screw axle or to separate, and clamping is decided nut.
Use the reason of slotted hole: the spacing according to the vehicle hold-down nut can be different, adjust fixing pullover 30 spacing by pullover 50.
This invention utilizes other support bar 15 and fixing pullover 30, is installed in the fixed screw axle or separates from the fixed screw axle being clipped in pullover hold-down nut easily.
To introduce the effect of the example of current invention below.Here will introduce revolving force and increase device 40.
Bar 93 rotation makes the inlet 92 interface channel 91a of bar 93, advances in the rotation guide hole 21 of power shaft 60 caps 20 the earliest or retreat in the interval inside by inlet 92 of the exterior portion of power shaft 60 the earliest.
At this moment a double plate spring 71,72 of elastic device 70 is because central authorities can separate, and the jog 65 of the jog 62 of power shaft 60 and carrier wheel 63 is because of mutual concavo-convex combination, so the revolving force of power shaft 60 can rotate carrier wheel 63 the earliest the earliest.
Pullover 50 are completely fixed in before the object, even strength too much also can be utilized elastic device 70, making the earliest, the jog 62 of power shaft 60 and the jog 65 of carrier wheel 63 continue to keep mutual concavo-convex bonding state.
Pullover when being completely fixed in object, do not need to use too many strength.
Install and fix nut in addition in the object fully, hold-down nut contact tire wheel surface, when no longer rotating, the user uses the operating grip 80 of a double plate spring 71,72 compression stresses of an elastic device.Rotate the earliest that power shaft 60 is, the jog 65 of the jog 62 of power shaft 60 and carrier wheel 63 breaks away from mutual concavo-convex bonding state the earliest, makes it to be in contact with one another, and according to carrier wheel 63, sky rotates power shaft 60 the earliest.(with reference to figure 7 or Fig. 8)
User's perception immediately power shaft 60 is the earliest known to install and fix nut fully according to carrier wheel 63 empty rotations.
When rotating the earliest power shaft 60 according to carrier wheel 63 skies, when the jog 62 of power shaft 60 is than jog (65 compare) contact of carrier wheel 63 the earliest, very blunt noise takes place, this noise of user's perception is known to install and fix nut fully.
As of the present invention shown in Figure 9, hold-down nut is installed in the direction of object, contact tire wheel surface, no longer under Xuan Zhuan the state, the direction that hold-down nut separates from object, contrary when rotating the earliest power shaft 60, the jog 65 of carrier wheel 63 and the earliest power shaft 60 keep mutual concavo-convex bonding state, power shaft 60 can be just in the rotation guide hole 21 of cap 20 the earliest/and contrary rotation, can utilize and control/remove the earliest that power shaft stops control/decontrol 90.
As shown in Figure 6, swingle 93 by passage 91a, makes the part of bar 93 inner outstanding from the rotation guide hole 21 of cap 21, contacts the inner face of the stop slot 94 of power shaft 60 the earliest earlier, and power shaft 60 can not advance laggard at rotation guide hole 21 the earliest.
The jog 62 of power shaft 60 and carrier wheel 63 can force to keep mutual concavo-convex bonding state the earliest, rotate power shaft 60 the earliest, the inner face of stop slot 94 is by passage 91a, and the outside of the rotation guide hole 21 inner bars of giving prominence to 93 of cap 20 not only can contact, and also can rotate carrier wheel 63.
Because the rotation of carrier wheel 63, final power shaft 60 and pullover 50 can rotate, and hold-down nut is installed in the direction of object, the contact of tire wheel surface, no longer under Xuan Zhuan the state, from the direction rotation hold-down nut that object separates, the result separates hold-down nut from object.
Revolving force of the present invention increases the 2nd example of device: as shown in figure 11, the inner cylinder length direction of cover 10 is arranged, the internal gear 11 that certain orientation forms; The front circular slab that can allow carrier wheel 63 move and rotate at central part from the back circular slab 76 that front circular slab 75 is isolated, is installed in the marginal position of front circular slab 75 and back circular slab 76.
In addition these are connected as one, gear exposes the inside cover 78 that hole 77a forms most parts 77 on every side; Combine with the carrier wheel 63 common tooth prefaces of passing the front circular slab, and in order to allow the general of gear continue to combine with internal gear 11, make it to cover 78 inside in inside, pin is that media can rotate.It is inner that part is outstanding in the gear position multiple pinion gear 79 and cover are installed in inside, makes it and can expose hole 77a rotation by gear.The end of the final output shaft 45 of circular slab 76 correspondences prolongs making in the back, makes the suspicious other parts that contain most pinion gears 79, also comprises the transposition gear 48 of the ring apperance of tooth preface combination.The gear of internal gear portion 11 connects number and lacks than the number of teeth of transposition gear then, according to the number of teeth amount difference of transposition gear 48 and internal gear 11, and the rotation of can slowing down of final output shaft 45.Have identical internal diameter though that is to say transposition gear 48 with internal gear 11, but because the difference of the number of gears, so will be according to internal gear 11, most pinion gears 79 can rotations or around the gear revolution, transposition gear 48 can rotate according to the internal gear 11 and transposition gear 48 numbers of teeth.
The operation of the 2nd revolving force geared system is as follows.Under internal gear 11 state identical with the internal diameter of transposition gear 48, the number of teeth of internal gear 11 is 54, the number of teeth of transposition gear 48 is 50 o'clock, the angle of a tooth of internal gear 11 is 6.66, in the process of most pinion gears 1 internal gear 11 of 79 rotations of carrier wheel 63 and the inner cylinder of transposition gear 48,48 rotations of transposition gear, 4 numbers of teeth (lacking 4) angle (26.64 degree) than internal gear.The final output shaft 45 of result and transposition gear one is identical with the direction of rotation of transposition gear 48, and by pullover 50, can rotate hold-down nut.It is big that final output shaft 45 revolving forces compare initial power shaft 60, so can be with very little strength rotation hold-down nut.According to the direction of rotation of carrier wheel 63, the direction of rotation of hold-down nut can change in addition.
The structure and the effect of the relevant spanner of the 1st example will be introduced now.
The relevant spanner of the 2nd example of the present invention as shown in figure 13, and is most of identical with the 1st example, has only each jog 62A, the 65A of power shaft 60 and carrier wheel 63 formations the earliest.
Condition 6: during direction rotation when power shaft 60 is fixed on object with fixed screw the earliest, can be by the elastic force of elastic device 70, rotation carrier wheel 63.
Condition 7: fixed screw is installed in the direction of object, when no longer rotating behind the surface of contact tire wheel, according to the compression stress of elastic device, make the concavo-convex position 65A of carrier wheel 63 and the earliest the jog 62A of power shaft 60 be in contact with one another mobilely, and rotate power shaft 60 the earliest according to the carrier wheel sky.
Condition 8: hold-down nut is installed in the direction of object, and is contrary when rotating the earliest power shaft from the direction that object separates hold-down nut no longer under Xuan Zhuan the state, according to the elastic force of elastic device 70, and rotation carrier wheel 63.
In order to satisfy these conditions, inclined design each concavo- convex position 62A, 65A.
Here the angle on inclined plane: the outside of the 1st edge part 61 or the 2nd edge part 62 becomes 30 degree.For example: inclined plane and vertical plane become 60 degree, and inclined plane and horizontal plane become 150 degree, but the angle on inclined plane not necessarily spends for 64 one-tenths 30 with first edge part 61 or the 2nd edge part, can make multiple angles.
Condition 7: as shown in figure 15, under the jog 65A of carrier wheel 63 and the jog 62A of power shaft 60 is in contact with one another the earliest the state, as shown in figure 14, the jog 65A of carrier wheel 63 and the earliest the jog 62A of input part 60 be in contact with one another move after, as shown in figure 16, the jog 65A of carrier wheel 63 and the earliest the jog 62A of power shaft 60 reset to the state of being in contact with one another.
That is to say repeatedly the order of Figure 15 → Figure 14 → Figure 16 → Figure 15, the elastic device 70 of Figure 14 can compress, power shaft 60 direction of arrow in the rotation guide hole 21 of cap 20 is laggard the earliest, and as shown in figure 16, power shaft 60 direction of arrow in the rotation guide hole 21 of cap 20 is maximum when laggard the earliest, as shown in figure 15, elastic device 70 resets to original state, and power shaft 60 direction of arrow in the rotation guide hole 21 of cap 20 is laggard toward carrier wheel axle 63 the earliest.
Condition 8: as shown in figure 15, during power shaft 60 direction of arrow B rotation the earliest, under the state of the jog 65A of carrier wheel 63 and the mutual concavo-convex combination of the jog 62A of power shaft 60 the earliest, the jog 65A vertical plane of the elastic force of elastic device 70 and carrier wheel 63 and the earliest among the jog 62A of power shaft 60 vertical plane form and force to prevent structure, so can rotate carrier wheel 63.The installation direction of hold-down nut contacts the tire wheel surface as a result, and when no longer rotating, hold-down nut can be with the direction rotation of unclamping in the object.
Each jog 62A, 65A such as Figure 13 of constituting of power shaft 60 and carrier wheel 63 the earliest, Figure 14, Figure 15, shown in Figure 16, can change multiple angle of inclination, satisfying condition 1, make in the scope of condition 2 and condition 3.
Here in the 2nd example of the present invention, each jog 62A, the 65A that constitute of power shaft 60 and carrier wheel 63 and the 1st example is vivid different the earliest, hold-down nut is installed the direction of object, the surface of contact tire wheel, no longer under Xuan Zhuan the state, the direction of separation nut from object, contrary when rotating the earliest power shaft, according to the elastic force of elastic device, can satisfy the condition 8 of rotation carrier wheel 63.
The 2nd example of the present invention and the 1st example are relatively, object, the tire wheel of vehicle is fixed on wheel hub, installation installs and fixes nut or separates relevant spanner from the solid screw shaft from the outstanding most fixed screw axles of wheel hub, when installing and fixing nut, not, but pass through the empty rotation status of carrier wheel by vision, the complete installment state of perception hold-down nut increases convenience immediately.
But the 2nd example of the present invention is selected to turn clockwise or be rotated counterclockwise in the fixed screw axle object formula, only selects one, also can be convenient to install or unclamp the operation of hold-down nut.
But the 2nd example of the present invention in order to turn clockwise in selection or to be rotated counterclockwise in the fixed screw axle object formula, is only selected one, embodies in addition and Figure 13, Figure 14, and Figure 15, jog 62A shown in Figure 16, the spanner that the 65A direction is opposite get final product.
Under the state that the direction that the hold-down nut case is installed is no longer rotated, when from object, separating hold-down nut, each jog 62A, 65A such as Figure 13 of constituting of power shaft 60 and carrier wheel 63 the earliest, Figure 14, Figure 15, shown in Figure 16, as the 1st example do not have other the earliest power shaft stop control/contact device, only change forms the angle of inclination on the inclined plane of jog 62A, 65A, separates hold-down nut easily from object.