CN100497999C - Actuator - Google Patents
Actuator Download PDFInfo
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- CN100497999C CN100497999C CNB2007100042907A CN200710004290A CN100497999C CN 100497999 C CN100497999 C CN 100497999C CN B2007100042907 A CNB2007100042907 A CN B2007100042907A CN 200710004290 A CN200710004290 A CN 200710004290A CN 100497999 C CN100497999 C CN 100497999C
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Abstract
The invention provides an actuator, in which an output shaft applied with elasticity in protruding direction is supported axially in reciprocating action mode on a casing with a motor and a power conversion unit between the motor and the output shaft stored therein. The actuator has adequate sealing, easy assembly of lead screw shaft, casing miniaturization and reduction of component number. The lead screw shaft is a part of the power conversion unit, and the side wall of a first half-casing is provided with a through hole penetrated by the output shaft which is provided with a screwing part screwed with the lead screw shaft at the axial inner end side and a long hole extending axially. A stopper limiting the axial moving end of the output shaft penetrates into the long hole between the inner surface of the side wall and the screwing part, fitted with and supported on the first half-casing, and a volute spring is arranged between the other end of the lead screw shaft and the first half-casing.
Description
Technical field
The present invention relates to the driving force of lock state that a kind of for example performance is used to remove the door lock assembly of automobile, the actuator of the switching power of the lid of fuel cap etc., be particularly related to so a kind of actuator: housing is made of the first half housings that mutually combine and the second half housings, be supported on this housing to the output shaft that is applied elastic force from the outstanding side of this housing in the mode of reciprocating action vertically, power converting unit is located between motor and the above-mentioned output shaft, and be used for the rotating power of this motor is converted to the axial power of above-mentioned output shaft being drawn in the above-mentioned output shaft of a side drive in the above-mentioned housing, above-mentioned motor and above-mentioned power converting unit are accommodated in the above-mentioned housing.
Background technique
Such actuator is known by patent documentation 1 and patent documentation 2.
Patent documentation 1: No. the 3153474th, Japanese patent gazette
Patent documentation 2: Japanese patent gazette spy opens 2004-257472 number
But, in above-mentioned patent documentation 1 disclosed actuator, lead screw shaft and output shaft that the rotating power of motor is transmitted in deceleration screw, and helical spring is located between output shaft and the housing in the mode around lead screw shaft, and performance is to the elastic force that makes output shaft from the outstanding side application of force of housing.Therefore, when the assembling lead screw shaft, need overcome the operation that helical spring elastic force shortens this helical spring, therefore be not easy to carry out assembling operation.And, because the through hole that output shaft runs through insertion is formed between a couple's half housing that mutually combines,, be difficult to obtain good sealing property so the junction plane of two and half housings is complicated.
On the other hand, in patent documentation 2 disclosed actuators, make the through hole that output shaft runs through insertion that the junction plane of two and half housings is oversimplified by on of two and half housings, being provided with, to obtain enough sealings, but use rack-and-pinion owing to convert the part of power converting unit of the axial power of output shaft at rotating power with motor, get the length setting of tooth bar long so have to, in addition, owing to need set the reduction speed ratio of the reducing gear between small gear and the motor bigger, so the space that is provided with of reducing gear becomes bigger, thereby causes the maximization of housing integral body.And, axially move back and forth end for what limit output shaft, need a pair of stop member, therefore cause components number to increase.
Summary of the invention
The present invention finishes in view of this situation, and its purpose is to provide a kind of actuator, can obtain enough sealings, and lead screw shaft assembles easily, and has realized the miniaturization of housing and the minimizing of components number.
To achieve these goals, technological scheme one described invention is a kind of actuator, in this actuator, housing is made of the first half housings that mutually combine and the second half housings, be supported on this housing to the output shaft that is applied elastic force from the outstanding side of this housing in the mode of reciprocating action vertically, power converting unit is located between motor and the above-mentioned output shaft, and be used for the rotating power of this motor is converted to the axial power of above-mentioned output shaft being drawn in the above-mentioned output shaft of a side drive in the above-mentioned housing, above-mentioned motor and above-mentioned power converting unit are accommodated in the above-mentioned housing, it is characterized in that
Above-mentioned power converting unit is by lead screw shaft, and the reducing gear that is located between this lead screw shaft and the above-mentioned motor constitutes, on the sidewall of the first half housings that form the case shape, be provided with through hole, above-mentioned output shaft has the portion that screws that screws with above-mentioned lead screw shaft in the axial inner ends side, and this output shaft runs through and is inserted in the above-mentioned through hole, on above-mentioned output shaft, be provided with and extend vertically than long slotted hole, this slotted hole screws the distolateral of lead screw shaft in the portion towards screwing above-mentioned, stop member is by limiting the end that moves axially of above-mentioned output shaft with the length direction end walls butt of above-mentioned slotted hole, the above-mentioned inside surface of side wall that this stop member is had at the first half housings and above-mentioned screw to run through between the portion be inserted in the above-mentioned slotted hole, and cooperate and be supported on the first half housings, between the other end of above-mentioned lead screw shaft and the first half housings, be provided with spiral spring, the such elastic force of this spiral spring performance: to above-mentioned lead screw shaft to making above-mentioned output shaft from the outstanding sideway swivel application of force of above-mentioned housing.
In addition, on the basis of the structure of technological scheme one described invention, technological scheme two described inventions are characterised in that, the spring housing of taking in above-mentioned spiral spring cooperates and is supported on the first half housings, the other end of above-mentioned lead screw shaft engages with the inner of above-mentioned spiral spring, and the outer end of above-mentioned spiral spring engages with above-mentioned spring housing.
And on the basis of the structure of technological scheme one or two described inventions, technological scheme three described inventions are characterised in that the sectional shape of above-mentioned through hole forms the shape that stops above-mentioned output shaft rotation.
According to technological scheme one described invention, because spiral spring is located between the first half housings and the lead screw shaft, so when lead screw shaft being assembled into the first half case side, can bearing the spring-load of spiral spring, thereby can easily assemble.In addition, in the coiling spiral spring, lead screw shaft is rotated operation, so that this lead screw shaft is combined on because of being inserted into the inner end of the output shaft that is in the confined state of rotation in the through hole, then make the lead screw shaft rotation by output shaft being pressed into the threaded function that is produced, then stop member is run through in the slotted hole that is inserted into output shaft and this stop member is cooperated with the first half housings, at this moment the elastic force brought into play by means of spiral spring of output shaft and moving, the portion that screws and above-mentioned stop member butt up to the inner end that makes output shaft, because the load that is provided with of spiral spring is determined under this state, so spring-load can not produce deviation.And since above-mentioned stop member by limiting the end that moves back and forth of output shaft with the axial end walls butt of slotted hole, so can under the less situation of the components number of having used single stop member, limit the axial both sides stroke of output shaft, and can limit the rotation of output shaft.And, by using the part of lead screw shaft, can set the reduction speed ratio of reducing gear smaller, thereby the space that can be used in the configuration reducing gear be smaller, thereby can realizes the miniaturization of housing as power conversion mechanism.And by the through hole that makes output shaft run through insertion is set on the first half housings, can make the junction plane of the first half housings and the second half housings is simple shape, thereby can improve sealing.
In addition, according to technological scheme two described inventions, by under lead screw shaft and state that the inner of spiral spring in being accommodated in spring housing is connected, spring housing is assembled on the first half housings, can and be located at spiral spring between the first half housings and the lead screw shaft with lead screw shaft and be assembled on the first half housings, thereby can easily carry out assembling operation.
And, according to technological scheme three described inventions, when assembling, make lead screw shaft and running through the portion of screwing that is inserted in the output shaft in the through hole when screwing, need the rotation of restriction output shaft, but owing to only be inserted into the rotation that just can limit output shaft in the through hole by output shaft is run through, thus do not need with hand maintenance output shaft limiting the rotation of this output shaft, thus can more easily carry out assembling operation.
Description of drawings
Fig. 1 is the biopsy cavity marker devices plan view of actuator.
Fig. 2 is the sectional drawing along the 2-2 line among Fig. 1.
Fig. 3 is exploded representation the first half housings and the figure that is assembled in the parts on the first half housings.
Fig. 4 is the sectional drawing along the 4-4 line among Fig. 1.
Fig. 5 is the sectional drawing along the 5-5 line among Fig. 1.
Fig. 6 is the stereogram of output shaft and stop member.
Fig. 7 is the sectional drawing along the 7-7 line among Fig. 1.
Fig. 8 is the exploded perspective view of spiral spring and spring housing.
Label declaration
11: actuator; 12: housing; 13: output shaft; 15: motor; 16: power converting unit; 17: the first half housings; 17a: the sidewall of the first half housings; 18: the second half housings; 28: lead screw shaft; 29: reducing gear; 40: through hole; 44: screw portion; 45: slotted hole; 46: stop member; 56: spring housing.
Embodiment
Fig. 1～Fig. 8 represents one embodiment of the present of invention, Fig. 1 is the biopsy cavity marker devices plan view of actuator, Fig. 2 is the sectional drawing along the 2-2 line among Fig. 1, Fig. 3 is exploded representation the first half housings and the figure that is assembled in the parts on the first half housings, Fig. 4 is the sectional drawing along the 4-4 line among Fig. 1, and Fig. 5 is the sectional drawing along the 5-5 line among Fig. 1, and Fig. 6 is the stereogram of output shaft and stop member, Fig. 7 is the sectional drawing along the 7-7 line among Fig. 1, and Fig. 8 is the exploded perspective view of spiral spring and spring housing.
At first in Fig. 1, this actuator 11 is for example brought into play the driving force of the lock state of the door lock assembly that is used to remove automobile, and this actuator 11 comprises: housing 12; Output shaft 13, it can reciprocatingly be supported on this housing 12 vertically; Spiral spring 14, it is to increasing the side application of force of this output shaft 13 from the overhang of housing 12; Motor 15; With power converting unit 16, it is located between motor 15 and the output shaft 13, and the rotating power of this motor 15 converted to reducing the axial power of output shaft 13 from a side drive output shaft 13 of the overhang of housing 12, above-mentioned output shaft 13 is so that its part is supported on this housing 12 from above-mentioned housing 12 outstanding modes, and above-mentioned spiral spring 14, above-mentioned motor 15 and above-mentioned power converting unit 16 are accommodated in the above-mentioned housing 12.
Describe with reference to Fig. 2 in the lump, above-mentioned housing 12 constitutes: by form the case shape (
Shape) plastic the first half housings 17 and plastic the second half housings 18 of opening end that seal the first half housings 17 are by a plurality of threaded parts 19,19 ... be combined into, on the first half housings 17 and junction planes the second half housings 18, be provided with first mating groove 20 that is linked to be ring-type along the complete cycle of the second half housings 18, and outstanding first of the ring-type that is provided with cooperates teat 21, and this first cooperates teat 21 side-prominent and form interior all sides of first mating groove 20 to the second half housings 18.On the other hand, on the second half housings 18 and junction planes the first half housings 17, be provided with: be linked to be ring-type and cooperate with first mating groove 20 second cooperate teat 22 and be linked to be ring-type and cooperate second mating groove 23 of teat 21 cooperations with above-mentioned first.So, make second to cooperate teat 22 to cooperate with first mating groove 20, make first to cooperate teat 21 to cooperate with second mating groove 23, and fastening above-mentioned threaded part 19,19 ..., in the sealing that obtains between the first half housings 17 and the second half housings 18, constitute housing 12 thus.
Describe with reference to Fig. 3 in the lump, the first half housings 17 have sidewall 17a, the outstanding integratedly connector 24 that is provided with on this sidewall 17a, above-mentioned connector 24 is used to realize being electrically connected of outside and motor 15, on above-mentioned the first half housings 17, be adjacent to be formed with location indentations 25 with above-mentioned sidewall 17a, this location indentations 25 is used for cooperating and it being positioned with roughly half part of motor 15, and the above-mentioned motor 15 that cooperates with location indentations 25 is clamped between the first half housings 17 that mutually combine and the second half housings 18.
In addition, power converting unit 16 is made of lead screw shaft 28 and gear type reducing gear 29, and above-mentioned lead screw shaft 28 has the axis parallel with the spin axis of above-mentioned motor 15; Above-mentioned reducing gear 29 is passed to above-mentioned lead screw shaft 28 with the rotating power deceleration of above-mentioned motor 15.This reducing gear 29 comprises: be located at the driving helical gear 30 on the motor reel 34 of above-mentioned motor 15; Drive the first idle running helical gear 31 of helical gear 30 engagements with this; With first idle running helical gear 31 form as one second idle running helical gear 32; With with the driven helical gear 33 of second idle running helical gear 32 engagement.
Cooperate with clutch shaft bearing recess 35 on being located at the first half housings 17 from half part of the front end of the outstanding motor reel 34 of motor 15, the first half housings 17 and the second half housings 18 in conjunction with the time, the front end of above-mentioned motor reel 34 can be bearing in clutch shaft bearing recess 35 rotatably and from the second half housings 18 between the side-prominent teat (not shown) of clutch shaft bearing recess 35.In addition, the first idle running helical gear 31 that forms as one and the second idle running helical gear 32 be rotatably by first fulcrum 36 supporting of the central part that runs through these idle running helical gears 31,32, and the two ends of first fulcrum 36 cooperate in the both sides of above-mentioned two idle running helical gears 31,32 and are supported on second bearing recess 37 and the 3rd bearing recess 38 that is located on the first half housings 17.And, outstanding integratedly being provided with respectively on the second half housings 18 towards second bearing recess 37 and the side-prominent teat (not shown) of the 3rd bearing recess 38, combination by the first half housings 17 and the second half housings 18 has stoped first fulcrum 36 to break away from from second bearing recess 37 and the 3rd bearing recess 38.
On the first half housings 17, giving prominence to the outstanding integratedly guide cylinder portion 39 that is provided with on the sidewall 17a that is provided with above-mentioned connector 24, this guide cylinder portion 39 has the axis parallel with the spin axis of motor 15, in being located at this guide cylinder portion 39 and in the through hole 40 of above-mentioned sidewall 17a, insertion is penetrated with the output shaft 13 that has attachment hole 41 in the outer end, and the two ends that cover the most sleeve pipe 42 of output shaft 13 are installed near the outer end of output shaft 13 the part and guide cylinder portion 39.
Describe with reference to Fig. 4～Fig. 6 in the lump, above-mentioned output shaft 13 has a pair of tabular surface 13a that is parallel to each other in reciprocal side, 13a, and the shape of cross section of this output shaft 13 forms non-circular, the shape of cross section of above-mentioned through hole 40 is corresponding with the external surface shape of output shaft 13, also form non-circular cross-sectional shape, particularly for the degree of depth of the first half housings 17 that as far as possible reduce to be provided with through hole 40 to realize the miniaturization of housing 12, above-mentioned through hole 40 forms: make above-mentioned output shaft 13 with above-mentioned two tabular surface 13a ... be inserted in the above-mentioned through hole 40 with the attitude of the depth direction quadrature of the first half housings 17.Be inserted in such through hole 40 by output shaft 13 is run through, stoped the rotation of output shaft 13, permission output shaft 13 rotates slightly when assembling but above-mentioned through hole 40 forms.
The inner end that is configured in the housing 12 at this output shaft 13 is provided with the portion of screwing 44, this screws portion 44 and has the tapped hole 43 that screws with above-mentioned lead screw shaft 28, output shaft 13 is provided with a distolateral slotted hole 45 that screws lead screw shaft 28 in the portion 44 at this towards screwing, this slotted hole 45 is opened in above-mentioned two tabular surface 13a ... on, and extend longlyer vertically, it is rectangle that slotted hole 45 forms its shape of cross section.
Internal surface and the above-mentioned stop member 46 that disposes rectangular shape between the portion 44 that screws of above-mentioned sidewall 17a in the first half housings 17, this stop member 46 runs through and is inserted in the above-mentioned slotted hole 45, this stop member 46 is by limiting the end that moves axially of above-mentioned output shaft 13 with the length direction end walls butt of above-mentioned slotted hole 45, one end of this stop member 46 cooperates and is supported on the first half housings 17, the first half housings 17 and the second half housings 18 in conjunction with the time, the other end of above-mentioned stop member 46 cooperates with the second half housings 18.
In addition, above-mentioned lead screw shaft 28 axial one distolaterally has in order integratedly from it: screw section 28a, and it is carved with the screw thread 47 that screws with above-mentioned tapped hole 43 in periphery; With support 28b, it forms the rounded short cylindrical shape of outer circumferential face, and links to each other coaxially with above-mentioned screw section 28a, and above-mentioned driven helical gear 33 forms at the opposition side of above-mentioned screw section 28a and above-mentioned support 28b and fuses coaxially.
Like this, as shown in Figure 2, above-mentioned support 28b can be clamped between the bearing portion 48,49 that is located at the first half housings 17 and the second half housings 18 respectively rotatably.In addition, driven helical gear 33 is configured in the bellying 51,52, and this bellying 51,52 is located at respectively on the first half housings 17 and the second half housings 18, and outwards bloats, and the axial position of lead screw shaft 28 is limited by these bellyings 51,52.
In addition, lead screw shaft 28 has spring engagement portion 28c integratedly, this spring engagement portion 28c and above-mentioned driven helical gear 33 fuse coaxially, from this spring engagement portion 28c in the scope of above-mentioned driven helical gear 33 and above-mentioned support 28b, the one distolateral the other end side that is inserted in lead screw shaft 28 coaxially of second fulcrum 53 cooperates from the other end of the second outstanding fulcrum 53 of lead screw shaft 28 and is bearing in the 4th bearing recess 54 of being located at the first half housings 17.And, outstanding integratedly being provided with on the second half housings 18 towards the side-prominent teat 55 of the 4th bearing recess 54, the combination by the first half housings 17 and the second half housings 18 has stoped second fulcrum 53 to break away from from the 4th bearing recess 54.
Describe with reference to Fig. 7 and Fig. 8 in the lump, between the other end of above-mentioned lead screw shaft 28 and the first half housings 17, be provided with spiral spring 14, the such elastic force of these spiral spring 14 performances: to the sideway swivel application of force that above-mentioned output shaft 13 is given prominence to from above-mentioned housing 12, this spiral spring 14 is accommodated in the spring housing 56 to above-mentioned lead screw shaft 28.
In addition, in the other end of above-mentioned lead screw shaft 28 be spring engagement portion 28c for example along two positions of circumferentially spaced equal intervals, be respectively equipped with fastening hole 57,57, in these fastening holes 57 ... some in engaging the crooked engagement portion 14a that is located at above-mentioned spiral spring 14 the inners arranged.In addition, the crooked engagement portion 14b that is located at spiral spring 14 outer ends engages with above-mentioned spring housing 56.
Above-mentioned spring housing 56 cooperates and is supported on the first half housings 17, and under the state of the first half housings 17 and the second half housing 18 combinations, above-mentioned spring housing 56 is clamped between the first half housings 17 and the second half housings 18.
The following describes the effect of present embodiment, power converting unit 16 is located between motor 15 and the output shaft 13, be used for the rotating power of this motor 15 is converted to the axial power of above-mentioned output shaft 13 being drawn in the above-mentioned output shaft 13 of a side drive in the above-mentioned housing 12, above-mentioned power converting unit 16 is by lead screw shaft 28, and the reducing gear 29 that is located between this lead screw shaft 28 and the motor 15 constitutes, between lead screw shaft 28 and the first half housings 17, be provided with spiral spring 14, the such elastic force of these spiral spring 14 performances: to lead screw shaft 28 to making output shaft 13 from the outstanding sideway swivel application of force of housing 12.Therefore, when lead screw shaft 28 being assembled into the first half housing 17 sides, can not bear the spring-load of spiral spring 14, thereby assembling becomes easy.And, by using the part of lead screw shaft 28, can set the reduction speed ratio of reducing gear 29 smaller, thereby the space that can be used in configuration reducing gear 29 be smaller, thereby can realizes the miniaturization of housing 12 as power converting unit 16.
In addition, on the sidewall 17a of the first half housings 17 that form the case shape, be provided with through hole 40, output shaft 13 runs through and is inserted in the through hole 40, and this output shaft 13 has the portion that screws 44 that screws with lead screw shaft 28 in the axial inner ends side, on above-mentioned output shaft 13, be provided with and extend vertically than long slotted hole 45, this slotted hole 45 is one distolateral towards what screw lead screw shaft 28 in the portion of screwing 44, stop member 46 is by limiting the end that moves axially of output shaft 13 with the length direction end walls butt of slotted hole 45, the internal surface of the sidewall 17a that this stop member 46 is had at the first half housings 17 and screw to run through between the portion 44 and be inserted in the slotted hole 45, and cooperate and be supported on the first half housings 17.
Therefore, in coiling spiral spring 14, lead screw shaft 28 is rotated operation, this lead screw shaft 28 is combined on because of being inserted into the inner end of the output shaft 13 that is in the confined state of rotation in the through hole 40, then make lead screw shaft 28 rotations by output shaft 13 being pressed into the threaded function that is produced, then stop member 46 is run through in the slotted hole 45 that is inserted into output shaft 13 and this stop member 46 is cooperated with the first half housings 17, at this moment output shaft 13 moves by means of the elastic force of spiral spring 14 performances, portion that screws 44 and above-mentioned stop member 46 butts up to the inner end that makes output shaft 13, because the revolution of revolution by lead screw shaft 28 that reverse of spiral spring 14 is determined, so the load that is provided with of spiral spring 14 is determined, so spring-load can not produce deviation.In addition, by the through hole 40 that makes output shaft 13 run through insertion is set on the first half housings 17, can make the junction plane of the first half housings 17 and the second half housings 18 is simple shape, thereby can improve sealing.In addition, because stop member 46 is by limiting the end that moves back and forth of output shaft 13 with the axial end walls butt of slotted hole 45, so can under the less situation of the components number of using single stop member 46, limit the axial both sides stroke of output shaft 13, and can limit the rotation of output shaft 13.
And, because taking in the spring housing 56 of spiral spring 14 cooperates and is supported on the first half housings 17, the other end of lead screw shaft 28 engages with the crooked engagement portion 14a of spiral spring 14 the inners, the crooked engagement portion 14b of spiral spring 14 outer ends engages with spring housing 56, so by under lead screw shaft 28 and state that the inner of spiral spring 14 in being accommodated in spring housing 56 is connected, spring housing 56 is assembled on the first half housings 17, can and be located at spiral spring 14 between the first half housings 17 and the lead screw shaft 28 with lead screw shaft 28 and be assembled on the first half housings 17, thereby can easily carry out assembling operation.
In addition, when lead screw shaft 28 being screwed in the portion that screws 44 of running through the output shaft 13 that is inserted in the through hole 40, need the rotation of restriction output shaft 13, but because the sectional shape of through hole 40 forms the shape that stops output shaft 13 rotations, therefore only, output shaft 13 is inserted into the rotation that just can limit output shaft 13 in the through hole 40 by being run through, and do not need to keep output shaft 13 limiting the rotation of this output shaft 13, thereby can more easily carry out assembling operation with hand.
Embodiments of the invention more than have been described, but the present invention is not limited to the foregoing description, can under the situation that does not break away from the scope that claims put down in writing, carries out various design alterations the present invention.
Claims (3)
1, a kind of actuator, in this actuator, housing (12) is made of the first half housings (17) that mutually combine and the second half housings (18), output shaft (13) is supported on this housing (12) in the mode of reciprocating action vertically, this output shaft (13) is applied in elastic force, and the direction of described elastic force is to make described output shaft (13) from the outstanding direction of this housing (12); Power converting unit (16) is located between motor (15) and the above-mentioned output shaft (13), and be used for the rotating power of this motor (15) is converted to the axial power of above-mentioned output shaft (13) being drawn in the above-mentioned output shaft of a side drive (13) in the above-mentioned housing (12), above-mentioned motor (15) and above-mentioned power converting unit (16) are accommodated in the above-mentioned housing (12), it is characterized in that
Above-mentioned power converting unit (16) is by lead screw shaft (28), and the reducing gear (29) that is located between this lead screw shaft (28) and the above-mentioned motor (15) constitutes, on the sidewall (17a) of the first half housings (17) that form the case shape, be provided with through hole (40), above-mentioned output shaft (13) has the portion that screws (44) that screws with above-mentioned lead screw shaft (28) in the axial inner ends side, and this output shaft (13) runs through and is inserted in the above-mentioned through hole (40), on above-mentioned output shaft (13), be provided with and extend vertically than long slotted hole (45), one side of the length direction of this slotted hole (45) screws the distolateral of lead screw shaft (28) in the portion (44) to screwing above-mentioned, stop member (46) limits the end that moves axially of above-mentioned output shaft (13) by the length direction end walls butt with above-mentioned slotted hole (45), the internal surface of the above-mentioned sidewall (17a) that this stop member (46) is had at the first half housings (17) and above-mentioned screw to run through between the portion (44) be inserted in the above-mentioned slotted hole (45), and cooperate and be supported on the first half housings (17), between the other end of above-mentioned lead screw shaft (28) and the first half housings (17), be provided with spiral spring (14), the elastic force that this spiral spring (14) performance is such: to above-mentioned lead screw shaft (28) the rotation application of force, the direction of the rotation application of force is to make the above-mentioned output shaft (13) that screws with this lead screw shaft (28) from the outstanding direction of above-mentioned housing (12).
2, actuator according to claim 1 is characterized in that,
The spring housing (56) of taking in above-mentioned spiral spring (14) cooperates and is supported on the first half housings (17), the other end of above-mentioned lead screw shaft (28) engages with the inner of above-mentioned spiral spring (14), and the outer end of above-mentioned spiral spring (14) engages with above-mentioned spring housing (56).
3, actuator according to claim 1 and 2 is characterized in that,
The sectional shape of above-mentioned through hole (40) forms the shape that stops above-mentioned output shaft (13) rotation.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006079897 | 2006-03-23 | ||
| JP2006079897A JP4732207B2 (en) | 2006-03-23 | 2006-03-23 | Actuator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101042176A CN101042176A (en) | 2007-09-26 |
| CN100497999C true CN100497999C (en) | 2009-06-10 |
Family
ID=38633228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100042907A Expired - Fee Related CN100497999C (en) | 2006-03-23 | 2007-01-19 | Actuator |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4732207B2 (en) |
| CN (1) | CN100497999C (en) |
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| KR102113110B1 (en) * | 2019-02-01 | 2020-05-21 | 대동모벨시스템 주식회사 | Apparatus for adjusting position of steering wheel for vehicle |
| WO2022145288A1 (en) * | 2020-12-28 | 2022-07-07 | 株式会社アイエイアイ | Actuator and robot |
| WO2022145072A1 (en) * | 2020-12-28 | 2022-07-07 | 株式会社アイエイアイ | Actuator and robot |
| JP7440082B2 (en) | 2020-12-28 | 2024-02-28 | 株式会社アイエイアイ | Actuators and robots |
| WO2022268010A1 (en) * | 2021-06-25 | 2022-12-29 | 恺博座椅机械部件有限公司 | Electric cable drive mechanism having self-return capability |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0129969B1 (en) * | 1983-06-17 | 1987-11-04 | Westinghouse Brake And Signal Company Limited | Electric actuators |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6263453A (en) * | 1985-09-13 | 1987-03-20 | Nitto Electric Ind Co Ltd | Semiconductor device |
| JP3153474B2 (en) * | 1996-08-06 | 2001-04-09 | アスモ株式会社 | Actuator and door lock device |
| JP2004257472A (en) * | 2003-02-26 | 2004-09-16 | Jidosha Denki Kogyo Co Ltd | Actuator |
-
2006
- 2006-03-23 JP JP2006079897A patent/JP4732207B2/en not_active Expired - Fee Related
-
2007
- 2007-01-19 CN CNB2007100042907A patent/CN100497999C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0129969B1 (en) * | 1983-06-17 | 1987-11-04 | Westinghouse Brake And Signal Company Limited | Electric actuators |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101042176A (en) | 2007-09-26 |
| JP2007259574A (en) | 2007-10-04 |
| JP4732207B2 (en) | 2011-07-27 |
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| PB01 | Publication | ||
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Granted publication date: 20090610 Termination date: 20170119 |