JP2002039314A - Actuator and method of delivering it - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate the need to do extra work such as passing a current through an actuator for adjusting the position of an output element, against an energizing force, to a predetermined position convenient for its assembly, when the actuator is assembled at a site where it is delivered. SOLUTION: The actuator 10 includes a shaft 14 caused to move back and forth linearly by the normal and reverse rotations of a stepping motor 12, and an output shaft 16 oscillatably connected to the shaft 14 via a connecting mechanism (ball joint) 15. The output shaft 16, which is provided to be capable of expansion and contraction relative to the body of the actuator 10 by virtue of the normal and reverse rotations of the stepping motor 12, is energized by the energizing force of a return spring 44 in its contraction direction. When the actuator 10 is delivered to an assembly shop, a clip 50 fixed in a predetermined position on the axis of the output shaft 16 abuts the end portion 41 of the end cap 40 and its position is regulated so that the output shaft 16 is held in a predetermined protruding position against the energizing force of the return spring 44.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an actuator in which an output member that reciprocates linearly based on the driving force of an electric motor is urged in at least one direction of a straight line, and a method of delivering the actuator.

[0002]

2. Description of the Related Art Conventionally, there has been known an actuator which reciprocates an output shaft in an axial direction thereof by, for example, rotating a motor forward and backward. Some actuators of this type urge the output shaft to return to a predetermined position.
In some cases, a return spring for biasing the output shaft in at least one direction of the straight traveling direction is provided. For example, there has been an actuator in which an output shaft that can expand and contract with respect to an actuator body is urged toward a contraction side by an urging force of a return spring. In this case, after the actuator is manufactured at the manufacturing factory, the actuator is delivered to the next assembly factory (for example, a customer factory) with the output shaft contracted due to the urging force of the return spring.

[0003]

By the way, when an actuator is assembled at an assembly factory of a delivery destination, an output shaft is connected to an operated component to be operated. At this time, in some cases, it is desired to perform the connection work with the operated component in a state where the output shaft protrudes from the actuator main body against the urging force of the return spring. However, conventionally, since the actuator was delivered with the output shaft contracted by the biasing force of the return spring, it was necessary to project the output shaft to the assembly position during this connection work. An operation of projecting an output shaft by rotating an electric motor has been performed.

[0004] For this reason, in the factory where the product is delivered, the actuator must be energized each time to protrude the output shaft, and the assembling work of the actuator is troublesome.
There has been a problem that energization of the actuator for holding the output shaft at a predetermined position causes extra power consumption in the assembling operation.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide an actuator in a predetermined position which is convenient for assembling an output body against an urging force when the actuator is assembled at a delivery destination or the like. It is an object of the present invention to provide an actuator and a method for delivering the actuator, which can save extra time such as energization for position adjustment.

[0006]

In order to solve the above-mentioned problems, according to the first aspect of the present invention, the output member reciprocates straight and moves based on the driving force of the electric motor, and the output member is biased. In an actuator urged in at least one direction of the straight traveling direction by the urging force of the means, regulating means for regulating the position of the output body against the urging force of the urging means and holding the output body at a predetermined position is provided. The point is that

According to this invention, the position of the output body of the actuator is regulated by the regulating means against the urging force of the urging means, and the output body is held at a predetermined position in advance. Therefore, when assembling the output body of the actuator to the operated component, it is not necessary to move the output body to a predetermined assembly position against the urging force of the urging means. It is possible to dispense with the operation of energizing the motor. For example, if the output body is held at a predetermined position before the actuator is delivered from the manufacturing factory to the assembly factory, the assembly work of the actuator at the factory to which the actuator is delivered is simplified.

According to a second aspect of the present invention, in the actuator according to the first aspect, the output member is provided so as to be extendable and retractable with respect to the actuator body, and is urged in a contraction direction by the urging means. The gist is that the output body is held at the protruding position by the regulating means.

According to the present invention, the output body whose position is regulated by the regulating means against the urging force of the urging means is held at the projecting position projecting from the actuator body. Therefore, when assembling the output body of the actuator to the operated component or the like, it is possible to omit the work of energizing the electric motor for projecting the output body to a predetermined assembly position against the urging force of the urging means. It becomes possible.

[0010] The invention described in claim 3 is the invention according to claim 1 or 2.
The gist of the invention is that the regulating means has a detachable regulating component. According to this invention, in addition to the operation of the invention described in claim 1 or 2, the output body is held at a predetermined position by the regulating component attached to the actuator, and for example, when the actuator is assembled at a delivery destination or the like. After is connected to the operated component, the regulating component is removed from the actuator. Since the regulating component is a detachable separate component, the structure of the regulating means for holding the output body at a predetermined position can be relatively easily completed. It is also possible to repeatedly use the regulated parts.

According to a fourth aspect of the present invention, in the actuator according to the second aspect, the restricting means is a restricting component which is detachably fixed to the output body in a state of being engaged with the actuator body. That is the gist.

According to the present invention, in addition to the function of the invention of the second aspect, since the regulating component is a detachable separate component, it has the function of the third aspect of the invention. In addition, since the restricting component detachably fixed to the output body engages with the actuator body, the position of the output body is restricted to the protruding position, so that the output body protrudes with almost no change in the actuator design. It is possible to hold in position.

According to a fifth aspect of the present invention, in the actuator according to any one of the first to fourth aspects, the output body swings through a connecting shaft and a base shaft that moves linearly by the power of the electric motor. The gist is provided so as to be capable of regulating the swing of the output body.

According to the present invention, the position of the output body is regulated to a predetermined position in a state where the swing is regulated by the swing regulating means of the regulating means. Therefore, for example, it is difficult for the output body to rattle during transportation of the actuator, and it is possible to prevent the position regulation for holding the output body at a predetermined position due to vibration or the like during transportation to be released.

According to a sixth aspect of the present invention, the output member reciprocates and rectilinearly operates based on the driving force of the electric motor, and the output member is urged in at least one of the straight directions by the urging force of the urging means. And providing the output body in a state where the position of the output body is regulated by a regulating means against a biasing force of the biasing means and held at a predetermined position.

According to the present invention, the actuator is delivered with the output body being held at a predetermined position in advance against the urging force of the urging means. Therefore, when assembling the actuator and connecting the output body to the operated component at the factory at the delivery destination, the time and effort for moving the output body to a predetermined position and the like are eliminated, and the delivery factory is used. Is easy to assemble.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. As shown in FIG. 1, an actuator 10 includes a body 11, a stepping motor as an electric motor (hereinafter simply referred to as a motor).
12, a feed mechanism 13, a base shaft 14, a coupling mechanism 15, an output shaft 16 as an output body, and the like.

The motor 12 is of a permanent magnet (PM) type. A motor case 17 fixed to the body 11 has a stator 18 mounted outside and a rotor 19 mounted inside. The stator 18 includes two annular exciting coils 20, 20 arranged adjacent to each other in the axial direction. Each exciting coil 20 has a predetermined exciting sequence from outside via an electrical connector 21 fixed to the body 11. Supplies driving currents having different phases. Each excitation coil 20, 20
A large number of tooth poles (claw poles) 22 are arranged at a constant pitch in the circumferential direction and are shifted from each other by a predetermined phase on the inner peripheral side.

The rotor 19 includes a pair of bearings 23, 2
4, a cylindrical body 25 rotatably supported by the cylindrical body 25,
And a cylindrical permanent magnet 26 which is externally fitted and fixed to the outer peripheral surface. As many permanent magnets 26 as the number of tooth poles (claw poles) 22 are arranged in the circumferential direction so that magnets adjacent to each other in the circumferential direction have different polarities. The cylinder 25 includes an inner cylinder 27 and an outer cylinder 28, and a female screw 29 is provided on an inner peripheral surface of the inner cylinder 27.
Are formed. One of the bearings 24 is connected to the body 11.
Is pressed toward the other bearing 23 via the annular plate 31 by the compression coil spring 30 disposed in the concave portion 11a, so that even when vibration is applied to the actuator 10 from the outside, the stator 18 remains in the axial direction. Is maintained in a state where the position is hardly changed.

The base shaft 14 has a feed screw portion 33 in which a male screw 32 is cut on the outer peripheral surface on the base end side, and is inserted into the cylinder 25 in a state where the male screw 32 and the female screw 29 of the cylinder 25 are screwed together. It is arranged in the state where it was. The base shaft 14 is a feed screw portion 33
A plate portion 34 having a quadrangular cross section is located on the more distal end side (the lower side in the figure).
And a ball portion 35 at the tip.

A rectangular frame-shaped bearing 36 is fitted in a through hole 11c formed in the body 11 so as to communicate the concave portion 11a with the concave portion 11b formed on the opposite side. 34 is guided through the bearing 36. When the motor 12 is driven by the plate portion 34 being guided by the bearing 36, the base shaft 14 can perform a straight-line operation in the axial direction while the shaft cannot be rotated.

The output shaft 16 as an output body is press-fitted to a tip (lower end) of a mount component 37 connected to a ball 35 formed at the tip of the base shaft 14. The ball unit 35, the mount component 37, and the fixing spring plate 38 having a U-shaped cross section for locking the two in a connected state constitute the connection mechanism 15 composed of a so-called ball joint. The output shaft 16 is connected to the base shaft 14 via the connecting mechanism 15.
Are supported so as to be rotatable (swingable) in all directions with respect to the axis.

An end cap 40 is fixed to the body 11 so as to cover the recess 11b. The end cap 40 has a shape in which a substantially cylindrical plate is folded inward at the lower end, and an annular end portion 41 is formed at the folded lower end.
And has a frustum-shaped rocking restricting surface 40a that expands downward and a central portion has an opening 40b large enough to allow the output shaft 16 to rock. Further, an annular concave portion 42 is formed inside the end cap 40 on the back surface side of the end portion 41. Therefore, the output shaft 16 extending to the outside while penetrating the opening 40b of the end cap 40 is allowed to swing in all directions. A return spring 44 composed of a compression coil spring is interposed between the flange 43 a of the plate cup 43 fitted to the mount component 37 and the annular concave portion 42 of the end cap 40, and the output shaft 16 is connected to the return spring 44.
Is urged to the contraction side. The actuator main body is constituted by the body 11, the end cap 40, and the like, which are constituted by components other than the output shaft 16 and components (the base shaft 14 and the coupling mechanism 15) that can move integrally with the output shaft 16 among the components of the actuator 10.

The plate distal end surface of the end cap 40 extending toward the base end (upward) inside the end portion 41 is a regulating portion 45 which comes into contact with the plate cup 43. By abutting, the output shaft 16 is mechanically locked to the projecting side. The origin of the output shaft 16 is a position shown in FIG. 1 where the plate cup 43 is slightly away from the regulating portion 45 by a predetermined distance (for example, 1 to 2 mm). For example, the output shaft 16 is periodically arranged at a lock position where the plate cup 43 abuts on the restricting portion 45, and the position of the origin is corrected based on the lock position. In this example, for example, the origin position is set as the maximum projecting position in the position control of the output shaft 16.

A connecting portion (mounting portion) 4 is provided at the tip of the output shaft 16.
6 are provided. A connected part (not shown) to be operated by the output shaft 16 when the actuator 10 is driven is connected to the connecting portion 46 of the output shaft 16. The operated component performs a rotating motion such as a rotary lever, and the output shaft 16 is swingable so that the operated component can perform a linear motion while allowing the rotating motion. The connecting portion 46 of the output shaft 16 has a connecting hole 46a for connecting the operated component with a pin.

The actuator 10 shown in FIGS.
This shows the state when the product is delivered (shipped) to the customer's factory. As shown in the figure, a clip 50 is attached to the output shaft 16, and when the clip 50 hits the end portion 41 of the end cap 40, the clip 50 projects to a position (original position) where it almost protrudes in a position control use range. The position is regulated, and the output shaft 16 is held in a protruding state.

The clip 50 is made of, for example, metal, and can be opened and closed with a pin 51 at one end as a fulcrum.
3 and accommodating portions 52a and 53a having arc concave surfaces having substantially the same diameter as the output shaft 16 are provided at the center. In addition, two plates 52, 53 are positioned opposite to each other.
A screw insertion hole and a screw hole (both not shown) for fastening a screw 54 for fixing the 53 in a closed state are formed respectively. The screw hole is formed, for example, on the inner peripheral surface of the weld nut 53b joined to the plate 53 shown in FIG. When the clip 50 is attached to the output shaft 16 such that the output shaft 16 is housed in the housing portions 52a and 53a, the length of the end cap 40 is sufficient to abut the end portion 41 of the end cap 40 at both ends. Have in the radial direction. As shown in FIG. 2, a plurality of drain holes 41a (three in this example) are formed in the end portion 41 of the end cap 40 in the circumferential direction.

The clip 50 is attached as follows. That is, when the assembly of the actuator 10 is completed, the output shaft 16 is at the most contracted position by the urging force of the return spring 44. In the assembled actuator, for example, the origin position of the output shaft 16 has already been set. After the assembly of the actuator 10 is completed, the actuator 10 is sent to a work process for maintaining the output shaft 16 in a state of protruding against the urging force of the return spring 44. In this work process, first, a drive current is supplied to the excitation coil 20 in a predetermined excitation sequence so that the motor 12 is driven to rotate forward, and the rotor 19 is rotated by a rotation angle corresponding to the number of steps instructed by the drive current.
Rotates, causing the output shaft 16 to protrude to a target position (for example, the origin position). Then, the clip 50 is sandwiched between the projecting output shaft 16 while the energized state is maintained, and the output shaft 1 is moved so that the clip 50 contacts the end portion 41 of the end cap 40.
After positioning along the slide 6, the clip 5
The output shaft 16 is held at the protruding position shown in FIG. The actuator 10 is shipped with the output shaft 16 held at a protruding position by the clip 50.

The projecting position of the output shaft 16 is a position convenient for assembling the actuator 10 at the delivery destination factory, and is not particularly limited to the origin position. Can be set as appropriate according to. Further, the clip 50 may be temporarily fixed in a process before the completion of the actuator 10, or the clip 50 may be attached in a process involving an energizing operation before the completion of the actuator 10. When the origin position of the actuator 10 has not been set, the output shaft 16 is once protruded and moved to set the lock position at which the plate cup 43 hits the restricting portion 45 as a reference point (absolute position), and a predetermined number of steps are returned. The output shaft 16 at a desired position (for example, the origin position).

The actuator 10 is delivered to the delivery destination factory with the output shaft 16 held at the protruding position with the output shaft 16 restricted in position by the clip 50. And at the delivery factory,
An operation of connecting the output shaft 16 of the actuator 10 to the operated component to be operated is performed. At this time, since the output shaft 16 is already in the protruding position, which is convenient for assembling, the output shaft 16 in the protruding position at the time of delivery is directly connected to the operated component (the lever in this example). After the operation of attaching the output shaft 16 to the operated component is completed, the clip 50 is removed from the output shaft 16. As described above, it is no longer necessary to energize the actuator, which is conventionally performed to arrange the output shaft at a desired position convenient for assembly. Therefore, when assembling the actuator 10 at the delivery destination factory, it is possible to omit an extra energizing operation for projecting the output shaft 16 and to suppress power consumption due to energization.

As described in detail above, this actuator 1
According to 0, the following effects can be obtained. (1) Since the output shaft 16 is held at the projecting position by the clip 50, the actuator 10
When the output shaft 16 is connected to the operated component, the output shaft 1
It is not necessary to perform extra work such as energization for projecting 6. Further, it is possible to suppress unnecessary power consumption due to energization of the actuator 10.

(2) The amount of protrusion of the output shaft 16 can be adjusted by selecting the axial position of the output shaft 16 when the clip 50 is fixed, and the amount of protrusion of the output shaft 16 can correspond to any value. Therefore, even if the projecting position for holding the output shaft 16 is different for each delivery destination (customer), or even for the same delivery destination, it is possible to cope with a different demand for each purpose of use.

(3) Since the detachable clip 50 is merely fixed to the output shaft 16, the regulation structure of the output shaft 16 can be relatively easily completed. In addition, since the clip 50 is removed after the actuator 10 is assembled, by collecting the clip 50, the clip 50 can be used repeatedly.

(4) The position is regulated by applying the clip 50 fixed to the output shaft 16 to the end portion 41 of the end cap 40 by applying the actuator 10 whose output shaft 16 is biased to the contraction side. The output shaft 16 is configured to be held at the projecting position. Therefore, the present invention can be applied to the conventionally designed actuator 10 without changing the design of the actuator 10 such as providing a special regulating mechanism.

(5) Since the motor 12 is a stepping motor, a high positional accuracy for holding the output shaft 16 at a predetermined position can be ensured. For this reason, when assembling the actuator 10 at the factory at the delivery destination, the output shaft 16 and the operated component can be connected in a correct positional relationship. Therefore, the operated component can be operated with high positional accuracy by the actuator 10.

(6) At the origin position where the output shaft 16 is held, since the plate cup 43 is separated from the regulating portion 45 of the end cap 40 by a predetermined distance (1-2 mm), the output shaft 16 is connected to the operated component. In this case, the output shaft 16 can be slightly swung and a degree of freedom can be obtained, so that the connecting operation of the output shaft 16 is easy.

The embodiment is not limited to the above, but can be implemented in the following modes. The restricting means is not limited to a clip that restricts only the position of the output shaft 16 in the straight traveling direction. For example, a clip structure that also controls the swinging motion of the output shaft can be employed. For example, FIG.
The clip 50 shown in (a) has a substantially cross-shaped planar view in which one plate 55 (only one side is shown) extends vertically from each outer wall of the accommodating portions 52a and 53a of the two plates 52 and 53 that open and close. Has made. On the upper end surfaces of the four plates 52, 53, 55 of the clip 50, four engaging recesses 56 which can be engaged with the end portions 41 are formed, and when the output shaft 16 is stopped at the projecting position by the clips 50, The two engaging recesses 56 engage with the end portion 41, and the swing of the output shaft 16 is also restricted. Note that the engagement concave portion 56 constitutes a swing regulating means.

In the clip 50 shown in FIG. 3B, a drain hole 41a is formed in the end portion 41 at a position facing 180 degrees, and a projection 57, which can be inserted into each drain hole 41a, is formed on the upper surface of the clip 50. 57 are formed to project. When the output shaft 16 is stopped at the projecting position by the clip 50, the projections 57, 57 are inserted into the drain holes 41a, so that the output shaft 16 is
Rocking is also regulated. The protrusion 57 and the drain hole 41
The swing regulating means is constituted by a.

Further, in the clip 60 shown in FIG. 4, an engagement plug 61 made of rubber and having a cylindrical shape is fixed to the upper end surfaces of the two plates 52 and 53. , 53, each consisting of a pair of parts 61a, 61b each having a half-split shape fixed to the upper surfaces of the parts. Plate 52,
In a state where 53 is closed, the two components 61a and 61b are joined to a single truncated cone-shaped engaging plug 61, and an insertion hole 62 capable of accommodating the output shaft 16 is formed at the center thereof. After closing the clip 60 and temporarily fixing the output shaft 16 therebetween, the clip 60 is slid to the proximal end side along the output shaft 16,
As shown in FIG.
When the screw 54 is tightened in this state by press-fitting to the zero swing regulation surface 40a, the output shaft 16 is held at the protruding position with the swing regulated. Note that the engagement stopper 61 constitutes a swing regulation unit. An engaging plug 61 constituting the clip 60 shown in FIG. 4, that is, a set of half-split parts 61
A frusto-conical cylinder-shaped rubber stopper consisting of only a and 61b may be used as the restricting means. That is, the engagement plug 6 is brought into the state of FIG.
1 may be press-fitted into the swing regulating surface 40a, the output shaft 16 may be held by the pressing force applied to the contact surface by the rubber from the rubber, and the swing of the output shaft 16 may be regulated.

By using the clips 50 and 60 shown in FIGS. 3A and 3B and FIG. 4, not only can the output shaft 16 be held at the protruding position, but also the swing of the output shaft 16 can be restricted. Therefore, it is possible to prevent the output shaft 16 from rattling while the actuator 10 is being transported to the delivery destination, and it is possible to avoid a problem that the screw 54 is loosened due to, for example, vibration during transportation and the position regulation of the output shaft 16 is released. Further, since the swing of the output shaft 16 is suppressed, it is not necessary for an operator to hold the output shaft 16 so as not to swing when the actuator 10 is assembled, so that the assembling work can be easily performed.

The regulating means is not limited to the clip structure. For example, a pair of slits are formed at two opposing positions on the side wall of the end cap 40, and a regulating plate inserted into one slit and inserted so as to come out of the other slit is applied to the upper surface of the flange 43 a of the plate cup 43. A method of controlling the position of the output shaft 16 by contacting the output shaft 16 may be used.

The actuator may not have the output shaft swinging mechanism. Even with an actuator that does not have an output shaft swinging mechanism, the output shaft is held at a predetermined position (projection position) against the urging force of the return spring, so that, for example, the labor of assembling work at the factory at the delivery destination can be saved. be able to.

The delivery of the actuator while the output shaft is held at the predetermined position by the regulating means is not limited to the delivery from the manufacturing factory of the actuator to the customer factory.
For example, the output shaft may be held in a protruding position in advance in a factory at a delivery destination using a regulating means in a previous process and then delivered to a subsequent process. In this case, it is possible to save the labor of the assembling work in the post-process.

The amount of protrusion when holding the output shaft can be changed as appropriate. For example, it may be the most protruding position where the output shaft 16 is mechanically locked by the mounting component 37 abutting on the regulating portion 45 of the end cap 40. Further, the output shaft 16 may be at a position protruding about half of the stroke or at a position slightly protruding from the most contracted position. In short, what is necessary is to maintain the output shaft in a state of protruding against the urging force of the return spring.

The regulating means is not limited to a detachable regulating part. The restricting means is, for example, a restricting pin that is foldably connected to the output shaft in a state of being buried in the output shaft. The restricting pin is raised from the output shaft to be in a protruding state so as to be engaged with the end portion 41 of the end cap 40. A configuration for restricting the position of the output shaft 16 may be adopted.

The present invention is not limited to the application to the actuator whose output shaft is biased to the contraction side. For example, the present invention can be applied to an actuator whose output shaft is urged only in the protruding direction. Two types of biasing means (return springs) for biasing both the projecting direction and the contracting direction so that the output shaft returns to the neutral position.
The present invention can also be applied to an actuator having Even when applied to these actuators, the output shaft is held at a predetermined position against the urging force of the urging means such as a return spring, so that the time and effort for assembling the actuator can be saved. In the case of an actuator whose output shaft is biased in the protruding direction, a locking pin protruding from a clip fixed to the output shaft is hooked into a locking hole or a locking groove formed in the end cap 40. The output shaft is fixed at the contracted position against the urging force of the return spring. In this case, the restriction means is constituted by the locking pin and the locking hole (locking groove). In the case of an actuator in which the output shaft is biased in both the contracting direction and the projecting direction, the output shaft is held by a clip on the projecting side with respect to the neutral position in the same manner as in the above-described embodiment, and the output shaft is held against the neutral position. On the contraction side, the output shaft is held by the same restricting means as an actuator having an output shaft that is urged and protruded.

The predetermined position for holding the output shaft is not limited to the assembly position. For example, in order to avoid that the output shaft hinders the assembling work when assembling the actuator, the output shaft is only retracted to a predetermined position in advance against the urging force of the urging means. Is also good.

The electric motor is not limited to a rotary motor. For example, a linear motor may be used. In short, the output member (output shaft) can reciprocate linearly and can be widely applied to an actuator which is urged in at least one direction by the urging means.

The return spring that urges the output shaft 16 to the contraction side may be a tension coil spring that urges the output shaft to the contraction side instead of the compression coil spring. -The motion conversion mechanism that converts the rotational motion of the electric motor into a linear motion may be a ball screw mechanism.

The stepping motor is not limited to a permanent magnet type, but may be a variable reluctance type or a composite type.
Further, the electric rotary motor is not limited to the stepping motor, and may be, for example, a DC motor.

The output member is not limited to a shaft member such as an output shaft, but may be, for example, a movable plate (table) or a block that reciprocates in a rectilinear direction. Technical ideas other than the claims grasped from the embodiment will be described below.

(1) In any one of claims 1 to 5, the restricting means mechanically restricts the position of the output shaft. (2) In any one of claims 1 to 5, the output shaft is supported so as to allow swinging, and the regulating means holds the output body at a swingable position. . According to this configuration, the output body can swing and the degree of freedom can be increased, so that the assembling work of connecting the output body to the operated component is easy.

(3) In any one of claims 1 to 5, the predetermined position at which the regulating means holds the output body is:
This is an assembly position where the output body is connected to the operated component. (4) In any one of claims 1 to 5, the electric motor is a stepping motor, and the position of the output shaft held by the regulating means is adjusted by the number of steps. Since the electric motor is a stepping motor, the output body can be accurately held at a desired position.

(5) In claim 6, the output member is provided so as to be expandable and contractible with respect to the actuator body, and is urged in a contraction direction by the urging means, and the output member is brought into a protruding position by the regulating means. How to deliver the held actuator.

(6) In the technical idea of claim 6 or (5), the restricting means is a restricting part detachable from the output body, and the restricting part is attached to the output body to deliver the actuator. Delivery method of the actuator to be used.

(7) In any one of the technical ideas of (6), (5) and (6), the output body is provided so as to be swingable, and the output body is swingable by the regulating means. How to deliver an actuator that is held in a state where movement is regulated.

[0057]

As described in detail above, according to the first to sixth aspects of the present invention, the output body of the actuator is held at a predetermined position against the urging force of the urging means. When assembling at a delivery destination or the like, unnecessary labor such as energization for adjusting the position of the output body to a predetermined position convenient for assembling can be omitted.

[Brief description of the drawings]

FIG. 1 is a side sectional view of an actuator.

FIG. 2 is a bottom view of a main part of the actuator, showing a clip attachment state.

FIGS. 3A and 3B are side sectional views of a main part of another example of a regulation structure.

FIG. 4 shows another example of a regulation structure different from FIG.
FIG. 2 is a perspective view of the clip, and FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 ... Actuator, 11 ... Body which comprises an actuator main body, 12 ... Stepping motor as an electric motor, 14 ... Base shaft, 15 ... Connection mechanism, 16 ... Output shaft as an output body, 40 ... End cap which comprises an actuator main body, 50, 60: clips as regulating means and regulating parts, 56: engagement recesses as swing regulating means,
41a: a drainage hole constituting the rocking restricting means, 57: a projection as the rocking restricting means, 61 ... an engagement plug as the rocking restricting means.

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Kazutoshi Ito 390 Umeda, Kosai-shi, Shizuoka Prefecture Asmo Co., Ltd. Reference) 5H607 AA12 BB01 BB10 BB14 CC01 CC03 DD04 DD19 EE53

Claims (6)

[Claims] An output body (16) reciprocates linearly based on a driving force of an electric motor (12), and the output body (1) is reciprocated.
6) The actuator in which the output body (16) is biased in at least one direction of the straight-moving direction by the biasing force of the biasing means (44), wherein the output body (16) is positioned against the biasing force of the biasing means (44). Regulating means for regulating and holding at a predetermined position (5
(0, 60). 2. The output member (16) is provided so as to be able to expand and contract with respect to the actuator body (11, 40), and is urged in the contraction direction by the urging means (44). 2 is held at a protruding position by said regulating means (50, 60).
An actuator according to claim 1. 3. The control device according to claim 2, wherein the control means is a removable control component.
The actuator according to claim 1 or 2, wherein (0,60) is provided. 4. The output unit (16) in a state in which the regulating unit engages with the actuator body (11, 40).
3. The actuator according to claim 1, wherein the restricting component is detachably fixed to the actuator. 4. 5. The output body (16) is swingably provided through a connecting shaft (15) and a base shaft (14) that moves linearly by the power of the electric motor (12). 5. The device according to claim 1, wherein the at least one of the first and second control units includes a swing regulation unit that regulates the swing of the output body. 6. Actuator. 6. An output body (16) reciprocates straight based on a driving force of an electric motor (12), and the output body (1) is driven.
6) is a method for delivering an actuator which is urged in at least one direction in the straight traveling direction by the urging force of the urging means (44), wherein the output body (16) is subjected to the urging force of the urging means (44). A method of delivering an actuator, characterized in that the actuator is delivered in a state where the position is regulated by a regulating means (50, 60) and held at a predetermined position.