JP2023027675A - Linear drive device and lock device - Google Patents

Abstract

To provide a linear drive device which can effectively avoid self-locking over a long period of time without causing an increase in size of the device, and to provide a lock device.SOLUTION: In a housing, a rotary member 13 having a spiral groove part 35 can rotate around an axis L and a linear motion member 15 having an engagement part 45 cannot rotate around the axis L and can reciprocate in an axis L direction. The rotary member 13 rotates in one direction R1 around the axis L or the other direction R2 to cause the linear motion member 15 to move linearly toward one side L1 or the other side L2 as seen in the axis L direction. The rotary member 13 is formed with a first contact part 39 and the linear motion member 15 is formed with a first contacted part 51 which contacts with the first contact part 39 in a direction moving around the axis L to restrict movement of the linear motion member 15 to the one side L1 when the rotary member 13 rotates in the one direction R1. In the axis L direction, the first contact part 39 is provided within a range of the spiral groove part 35 and the first contacted part 51 is provided in a range of the engagement part 45.SELECTED DRAWING: Figure 3

Description

The present invention relates to linear drives and locking devices.

A conventional linear drive device is disclosed in Patent Document 1. This linear drive device includes a housing, a rotating member, and a linear motion member.

The rotating member has a spiral groove formed around the axis. The linear motion member is formed around the axis and has a meshing portion that meshes with the spiral groove. The housing supports the rotary member so as to be rotatable about the axis, and supports the direct-acting member so that it cannot be rotatable about the axis and can reciprocate in the axial direction.

When the rotating member rotates in one direction about the axis, the linear motion member moves linearly in one direction of the axis. Moves in a straight line toward the other in the center direction.

In this linear drive device, a rod extending from the linear motion member in a direction crossing the axial direction is brought into contact with the housing in the axial direction, thereby restricting linear movement of the linear motion member in the axial direction. ing.

However, in the above structure, the contact of the rod with the housing directly restricts the linear movement of the direct-acting member, but does not restrict the rotation of the rotating member. Therefore, if the drive torque continues to be applied to the rotating member even after the rod contacts the housing, the rotating member can rotate. As a result, the rotary member rotates further with respect to the linear motion member whose linear movement is restricted, and both members rotate relative to each other. It digs into the groove. Occurrence of such biting may cause a so-called self-locking state in which the rotating member cannot be rotated smoothly.

Therefore, in the linear drive device disclosed in Patent Document 1, a countermeasure against self-locking is taken by covering the rod with an elastic body. That is, by using elastic force to return the rod in the direction away from the housing, biting between the spiral groove and the meshing portion is suppressed. However, if the elastic force is reduced due to the deterioration of the elastic body, the countermeasures will not be effective.

Another conventional linear drive is disclosed in US Pat. In this linear drive device, the linear movement of the linear motion member is restricted by bringing the projections provided on the rotary member and the linear motion member into contact with each other in the direction around the axis. That is, if the convex portion of the rotating member abuts against the convex portion of the linear motion member that cannot rotate about the axis in the direction around the axis, the rotation of the rotating member itself is restricted. As a result, linear movement of the linear motion member is also restricted. Therefore, even if the driving torque continues to be applied to the rotating member after the convex portions abut against each other, the rotating member will not rotate further and the two members will not rotate relative to each other. Therefore, the meshing portion does not bite into the spiral groove portion, and self-locking can be avoided.

JP 2016-65605 A Japanese Patent No. 6422302

However, in the conventional linear drive device disclosed in Patent Document 2, a convex portion is provided at the end portion of the rotating member in the axial direction. In order to regulate the relative rotation of both members by bringing the convex portion of the rotating member into contact with the convex portion of the linear motion member in the direction around the axis, it is necessary to extend outward in the axial direction from the end of the rotating member. It is necessary to project the convex part to some extent. As a result, the rotating member becomes large in the axial direction, resulting in an increase in the size of the device.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional circumstances, and is a linear driving device capable of avoiding self-locking without increasing the size of the device and effectively avoiding self-locking over a long period of time. The problem to be solved is to provide a device and a locking device.

The linear drive device of the present invention comprises:
a rotating member having a spiral groove formed around an axis;
a meshing portion formed around the axial center and meshing with the spiral groove portion, the rotating member rotating in one direction around the axial center to linearly move in one direction of the axial center; a linear motion member linearly moving in the other axial direction by rotating the rotating member in the other direction around the axial center;
a housing that supports the rotating member rotatably about the axis and supports the linear motion member so that it cannot rotate about the axis but can reciprocate in the axial direction;
A first contact portion is formed on the rotating member,
When the rotary member rotates in the one direction, the linear motion member abuts against the first contact portion in the direction around the axis to prevent the linear motion member from moving to the one side. In a linear drive device in which a regulating first abutted portion is formed,
The first contact portion is provided within the range of the spiral groove portion in the axial direction, and the first contacted portion is provided within the range of the engaging portion in the axial direction. do.

In the linear drive device of the present invention, when the rotary member rotates in one direction around the axis and the linear motion member linearly moves in one direction of the axis, the first contact portion and the first contact The linear movement of the direct-acting member to one side in the axial direction is restricted by the abutment of the contact portion in the axial direction. At this time, the first abutting portion of the rotating member abuts against the first abutted portion of the linear motion member, which cannot be rotated about the axis, in the direction around the axis, thereby preventing the rotation of the rotating member. Since the movement itself is restricted, the rotating member and the direct-acting member do not rotate relative to each other due to further rotation of the rotating member. Therefore, the clearance between the spiral groove portion and the meshing portion is not clogged, and the spiral groove portion does not bite into the meshing portion. Therefore, it is possible to avoid so-called self-locking, in which smooth rotation of the rotating member becomes impossible due to biting between the spiral groove and the meshing portion, without using an elastic body that easily deteriorates.

Also, the first contact portion of the rotating member is provided within the range of the spiral groove originally formed in the rotating member. Therefore, unlike the case where the first contact portion protrudes in the axial direction from the end portion of the rotating member, the provision of the first contact portion does not increase the size of the rotating member in the axial direction. .

Therefore, in the linear drive device of the present invention, self-lock can be avoided without increasing the size of the device, and self-lock can be effectively avoided over a long period of time.

It is preferable that the rotating member is formed with a second abutment portion, and the direct-acting member is formed with a second abutted portion. Preferably, the second contact portion is provided within the range of the spiral groove portion in the axial direction, and the second contacted portion is provided within the range of the engaging portion in the axial direction. When the rotating member rotates in the other direction, the second abutment portion and the second abutted portion come into contact with each other in the direction around the axis, thereby restricting the movement of the direct-acting member to the other side. is preferred.

In this case, when the rotating member rotates in the other direction around the axis and the direct-acting member linearly moves in the other direction of the axis, the second contact portion and the second contacted portion are axially aligned. By abutting in the direction around the center, linear movement of the linear motion member to the other side in the axial direction is restricted. At this time, since the rotation of the rotating member itself is regulated, the rotating member and the direct-acting member do not rotate relative to each other due to further rotation of the rotating member. Therefore, the clearance between the spiral groove portion and the meshing portion is not clogged, and the spiral groove portion does not bite into the meshing portion. Therefore, even when the direct-acting member moves to the other side with respect to the rotating member, it is possible to avoid so-called self-locking without using an elastic body that easily deteriorates.

It is preferable that the rotating member has a rotating shaft extending in the axial direction in a bar shape and provided with a spiral groove on the outer peripheral surface of the other end. It is preferable that the linear motion member has a linear motion shaft that extends cylindrically in the axial direction and that has an engaging portion provided on the inner peripheral surface of one end. Preferably, the direct-acting member has a shaft body with one end open into which the rotating shaft is inserted, and a stopper member attached to one end of the shaft body. In this case, the stopper member can be attached to the shaft body after the rotation shaft is inserted through the opening of the shaft body. It is preferable that the shaft main body is formed with a portion of the other side of the meshing portion, and the stopper member is formed with the remaining portion of the meshing portion on the one side. Furthermore, it is preferable that the first contact portion is provided at the other end of the spiral groove, and the second contact portion is provided at the one end of the spiral groove. Moreover, it is preferable that the first contacted portion is provided at the other end of the engaging portion, and the second contacted portion is provided at the one end of the engaging portion.

It is preferable that the housing has a third abutment portion and the direct-acting member has a third abutted portion. By rotating the rotating member in one direction, the third contact portion and the third contacted portion move in the axial direction before the first contact portion and the first contacted portion contact each other. to restrict the movement of the linear motion member to one side.

In this case, when the rotating member rotates in one direction around the axis and the direct-acting member linearly moves in one direction of the axis, the third contact portion and the third contacted portion are aligned with each other. The first abutting portion and the first abutted portion abut after abutting in the center direction. Therefore, it is possible to disperse the impact when the abutting portions abut against each other, and in particular, it is possible to reduce deformation and wear of the first abutting portion and the first abutted portion.

It is preferable that the housing is formed with a fourth abutment portion, and the direct-acting member is formed with a fourth abutted portion. Then, by rotating the rotating member in the other direction, the fourth contact portion and the fourth contacted portion move in the axial direction before the second contact portion and the second contacted portion contact each other. to restrict the movement of the direct-acting member to the other side.

In this case, when the rotating member rotates in the other direction around the axis and the direct-acting member linearly moves in the other direction of the axis, the fourth contact portion and the fourth contacted portion are axially aligned. The second abutting portion and the second abutted portion abut after abutting in the center direction. Therefore, it is possible to disperse the impact when the abutting portions abut against each other, and in particular, it is possible to reduce deformation and wear of the second abutting portion and the second abutted portion.

The linear drive device of the present invention comprises: a motor provided in a housing for driving a rotating member to rotate about an axis; an operating member projecting from the housing and capable of manually rotating the rotating member about an axis; is preferably further provided.

In this case, even when the motor fails, the user can manually operate the operation member to rotate the rotary member about the axis and linearly move the linear motion member in the axial direction. .

The locking device of the present invention includes a vehicle body, a mounting device mounted on the vehicle body, and a linear driving device of the present invention that prevents the mounting device from being detached from the vehicle body by linearly moving a linear motion member to the other side. It is characterized by

According to the locking device of the present invention, in a locking device in which the mounting device cannot be detached from the vehicle body by linear movement of the direct-acting member to the other side, self-locking can be avoided without increasing the size of the device, and self-locking can be maintained for a long period of time. Locks can be effectively avoided.

According to the linear drive device of the present invention and the lock device equipped with the linear drive device, self-lock can be avoided without increasing the size of the device, and self-lock can be effectively avoided over a long period of time.

FIG. 1 is a perspective view of a linear drive device of an embodiment. FIG. 2 is a plan view of the linear drive device according to the embodiment, showing a state in which the cover is removed from the linear drive device. FIG. 3 is an exploded perspective view of a rotary member and a linear motion member, relating to the linear drive device of the embodiment. FIG. 4 is a perspective view of a shaft body that partially shows the shape of the inner peripheral surface of the shaft body that constitutes the linear motion member, according to the linear drive device of the embodiment. FIG. 5 is a cross-sectional view of the housing, rotary member and linear motion member taken along line AA of FIG. 2, relating to the linear drive device of the embodiment. FIG. 6 is a perspective view of the rotary member and the linear motion member showing a retracted position in which the linear motion member has moved to one side, according to the linear drive device of the embodiment. FIG. 7 is a perspective view of the rotary member and the linear motion member showing a state in which the linear motion member is moved to the other side and is in the projecting position, according to the linear drive device of the embodiment. FIG. 8 shows the linear drive device of the embodiment, in which the linear motion member is in the retracted position, and immediately after the third abutment portion of the housing and the third abutted portion of the linear motion member come into contact with each other in the axial direction. 2 is a schematic partial cross-sectional view showing the state of FIG. FIG. 9 is a cross-sectional view of the rotary member and the linear motion member taken along line BB in FIG. 8, relating to the linear drive device of the embodiment. FIG. 10 shows the linear drive device of the embodiment, in which the linear motion member is in the retracted position, and the first abutment portion of the rotating member and the first abutted portion of the linear motion member are in contact with each other in the direction around the axis. It is a model fragmentary sectional view which shows the state which touched. FIG. 11 is a cross-sectional view of the rotary member and the linear motion member, taken along line CC of FIG. 10, relating to the linear drive device of the embodiment. FIG. 12 shows the linear drive device of the embodiment, in which the linear motion member is in the projecting position, and immediately after the fourth abutment portion of the housing and the fourth abutted portion of the linear motion member come into contact with each other in the axial direction. 2 is a schematic partial cross-sectional view showing the state of FIG. FIG. 13 is a cross-sectional view of the rotary member and the linear motion member cut along line DD in FIG. 12, relating to the linear drive device of the embodiment. FIG. 14 shows the linear drive device of the embodiment, in which the linear motion member is in the projecting position, and the second abutting portion of the rotating member and the second abutted portion of the linear motion member are in contact with each other in the direction around the axis. It is a model fragmentary sectional view which shows the state which touched. FIG. 15 is a cross-sectional view of the rotary member and the linear motion member taken along line EE in FIG. 14, relating to the linear drive device of the embodiment. FIG. 16 is a schematic diagram showing a state in which the lock device provided with the linear drive device of the embodiment is applied to a vehicle.

Hereinafter, embodiments embodying the present invention will be described with reference to the drawings.

(Example)
As shown in FIGS. 1 and 2, the linear drive device 1 of the embodiment is a specific example of the linear drive device of the present invention. Also, as shown in FIG. 16, the locking device 3 of the embodiment is an example of a specific mode of the locking device of the present invention. The lock device 3 is applied to a vehicle such as an electric vehicle or a plug-in hybrid vehicle equipped with a power storage device that stores electric power supplied to a driving motor. The locking device 3 is arranged on the right side and rear side of the vehicle, inside the charging port 2a opened in the body panel 2 forming the side surface of the vehicle.

The longitudinal direction shown in FIG. 1 is based on the longitudinal direction of the vehicle. The vertical direction shown in FIG. 1 is based on the vertical direction of the vehicle. 1, the right side of the vehicle is the outside of the vehicle, and the opposite side is the inside of the vehicle, that is, the inside of the vehicle. The front-rear direction, the vertical direction, and the vehicle inside-outside direction shown in FIG. 2 and subsequent drawings correspond to FIG.

<Configuration of locking device>
The lock device 3 includes a vehicle body connector 5, a charging gun 7 for charging a power storage device (not shown) mounted on the vehicle body, and a linear drive device 1 that prevents the charging gun 7 from being detached from the vehicle body connector 5. It has The vehicle body side connector 5 is an example of a vehicle body, and the charging gun 7 is an example of a mounting device. The vehicle body side connector 5 is arranged inside the vehicle of the charging port 2 a , and the linear drive device 1 is fixed to the upper surface of the vehicle body side connector 5 via the bracket 4 .

The charging gun 7 has a claw portion 9 whose tip can swing. The vehicle body side connector 5 has a receiving portion 11 with which the claw portion 9 engages. An engaged state in which the claw portion 9 and the receiving portion 11 are engaged by swinging the claw portion 9 in the direction toward the receiving portion 11 (the direction indicated by the arrow P in FIG. 16) (the state indicated by the solid line in FIG. 16). , and when the claw portion 9 swings in the direction away from the receiving portion 11 (the direction indicated by the Q arrow in FIG. 16), the engagement is disengaged (the state indicated by the two-dot chain line in FIG. 16). . The claw portion 9 becomes engaged in conjunction with the connection of the charging gun 7 to the vehicle body side connector 5 .

The linear drive device 1 includes a linear motion member 15 whose tip protrudes from the linear drive device 1 and whose protrusion amount varies. The linear drive device 1 is electrically controlled by a control device (not shown) so that the linear motion member 15 is in a protruded position (a state indicated by solid lines in FIG. 16) and the linear motion member 15 is retracted from the protruded position. It is possible to switch between the retracted position (the state indicated by the two-dot chain line in FIG. 16) and the retracted position. In the linear drive device 1, when the claw portion 9 is brought into an engaged state by electrical control by a control device (not shown) and power supply is started, the linear motion member 15 is displaced from the retracted position to the projected position. The direct-acting member 15 in the projecting position restricts the swinging of the claw portion 9 in the direction away from the receiving portion 11 (the direction indicated by arrow Q in FIG. 16).

<Construction of linear drive device>
As shown in FIG. 2 , the linear drive device 1 includes a rotary member 13 , a linear motion member 15 , a housing 17 , a motor 19 and an operating member 21 . The rotating member 13, the linear motion member 15, the housing 17, and the operating member 21 are all made of resin. As shown in FIG. 5, the housing 17 has a box-like main body 25 having an opening 23 and a lid 27 closing the opening 23 .

The rotary member 13 and the linear motion member 15 have an axis L. As shown in FIG. In the following description, one side in the direction of the axis L is L1 and the other side is L2, and one direction around the axis L is R1 and the other direction is R2. 2 and the like, the vehicle inner direction is defined as one side L1 in the axial center L direction, and the vehicle outer direction is defined as the other side L2 in the axial center L direction. Further, in FIG. 2 and the like, the clockwise direction is defined as one direction R1 around the axis L when viewed from the vehicle inner direction, that is, one side L1 in the direction of the axis L, toward the other side L2 in the direction of the vehicle outside, that is, the direction of the axis L, The counterclockwise direction is defined as the other direction R2 around the axis L. As shown in FIG.

The housing 17 supports the rotating member 13 so as to be rotatable about the axis L. As shown in FIG. Further, the housing 17 supports the rotating member 13 so as to be linearly movable by a predetermined amount in the axial center L direction, as will be described later.

The housing 17 supports the direct-acting member 15 so that it cannot rotate about the axis L and can reciprocate in the direction of the axis L. As shown in FIG. As shown in FIG. 8 and the like, the housing 17 has a housing portion 71 for housing the direct-acting member 15 . As shown in FIG. 5, a guide recess 73 extending in the axial center L direction is provided inside the accommodation portion 71 . The guide recess 73 guides the direct-acting member 15 to be non-rotatable around the axis L and linearly movable in the direction of the axis L. As shown in FIG.

As shown in FIG. 2, a drive gear 29 is connected to the drive shaft of the motor 19 . The rotating member 13 has a driven gear 31 that meshes with the driving gear 29 and a rotating shaft 33 that extends in the axial center L direction in a bar shape. The driven gear 31 and the rotating shaft 33 are integrally formed. Although not shown in detail in FIGS. 2 and 3, the driving gear 29 and the driven gear 31 are formed with teeth that mesh with each other.

When power is supplied to the motor 19 under the control of a control unit (not shown), the drive gear 29 rotates in the forward direction and the reverse direction. rotates in one direction R1 and the other direction R2. In the following description, when the motor 19 and the driving gear 29 rotate in the forward direction, the rotating member 13 rotates in one direction R1 around the axis L, and when the motor 19 and the driving gear 29 rotate in the opposite direction. For example, it is assumed that the rotating member 13 rotates about the axis L in the other direction R2.

As shown in FIG. 3, the rotating shaft 33 extends from the driven gear 31 along the axial center L direction and has a substantially circular cross section. The rotating shaft 33 has a spiral groove portion 35 on the outer peripheral surface 33a of the end portion on the other side L2 in the axial center L direction. The spiral groove portion 35 is composed of grooves and ridges spirally extending around the axis L of the rotating shaft 33 . The spiral groove portion 35 is formed on the outer peripheral surface 33a of the rotating shaft 33 in a male thread shape. The thread of the spiral groove portion 35 protrudes radially outward from the outer peripheral surface 33 a of the rotating shaft 33 and extends spirally around the axis L of the rotating shaft 33 . The screw thread in the spiral groove portion 35 extends clockwise ( It extends spirally in one direction (R1) around the axis L for about two turns. That is, the screw thread in the spiral groove portion 35 extends in a so-called right-handed screw shape.

As shown in FIGS. 3 and 8 to 15, the rotating shaft 33 has a first contact portion 39 and a second contact portion 41. As shown in FIGS. The first contact portion 39 and the second contact portion 41 are formed on the outer surface of the externally threaded spiral groove portion 35 . In other words, the first contact portion 39 and the second contact portion 41 are formed within the range of the spiral groove portion 35 in the axial center L direction. More specifically, a flat portion 37a is formed on the outer side surface of the spiral groove portion 35 by flatly cutting the thread portion of the spiral groove portion 35 along the axis L. As shown in FIG. The flat portion 37a is formed by a notched surface corresponding to a cutting surface capable of cutting both the screw thread at the proximal end portion and the screw thread at the distal end portion of the spiral groove portion 35. As shown in FIG. A portion of the flat portion 37a where the screw thread on the most other side L2 in the axial center L direction, which is the distal end portion of the spiral groove portion 35, is cut off serves as a first contact portion 39, and the base end of the spiral groove portion 35 A second contact portion 41 is formed by cutting out the screw thread on the most one side L1 in the axial center L direction.

As shown in FIG. 3, the flat portion 37a extends along the entire axial center L direction of the rotary shaft 33. The flat portion 37a is cut out entirely in the height direction of the screw thread. The flat portion other than the portion of the spiral groove portion 35 may be omitted. Further, as shown in FIG. 5, the rotating shaft 33 extends in the axial center L direction while being opposite to the flat portion 37a in the radial direction of the rotating shaft 33, and faces the opposite side of the flat portion 37a in the radial direction. A flat portion 37a and a flat portion 37b are provided symmetrically to each other in order to ensure the balance around the axis L of the rotating shaft 33. As shown in FIG.

As shown in FIG. 3 , the linear motion member 15 has a linear motion shaft 43 extending cylindrically in the axial center L direction on one side L1 in the axial center L direction. As shown in FIGS. 3 and 4, the direct-acting shaft 43 has a meshing portion 45 on an inner peripheral surface 43a of the end portion on one side L1 in the axial center L direction. The meshing portion 45 is composed of grooves and ridges spirally extending around the axis L of the direct-acting shaft 43 . The meshing portion 45 is formed in the shape of a female screw on the inner peripheral surface 43 a of the direct-acting shaft 43 . The thread of the meshing portion 45 protrudes radially inward from the inner peripheral surface 43 a of the direct-acting shaft 43 and spirally extends around the axis L of the direct-acting shaft 43 . The meshing portion 45 is formed to mesh with the spiral groove portion 35 . The thread groove in the meshing portion 45 extends clockwise (one direction R1 around the axis L) from one side L1 to the other side L2 of the linear motion shaft 43 in the direction of the axis L for about 4.5 turns. spirally extending. That is, the thread groove in the meshing portion 45 extends in a so-called right-handed thread shape. The length of the engaging portion 45 in the axial center L direction can be appropriately set according to the desired amount of protrusion of the linear motion member 15 (the amount of displacement from the retracted position to the protruding position).

The linear motion member 15 is composed of a shaft body 47 and a stopper member 49 . As shown in FIG. 4, the portion on one side of the shaft body 47, that is, the portion on the one side L1 in the direction of the axial center L forms a tubular portion 75, and one end of the one side L1 is open. A portion on the other side of the shaft body 47 , that is, a portion on the other side L<b>2 in the axial center L direction forms a rod-shaped portion 77 . A stopper member 49 is attached to the end of one side L1 of the shaft body 47 in the axial center L direction. When assembling the linear motion member 15 and the rotating member 13 , the stopper member 49 is attached to the shaft body 47 after the rotating shaft 33 is inserted through the opening of the shaft body 47 . The cylindrical portion 75 of the shaft body 47 and the stopper member 49 constitute the direct-acting shaft 43 . The inner peripheral surface 43a of the linear motion shaft 43 is composed of an inner peripheral surface 75a of the tubular portion 75 and an inner peripheral surface 87a of a partial tubular portion 87 of the stopper member 49, which will be described later.

An end portion of the rod-shaped portion 77 on the other side L2 in the axial center L direction protrudes from the housing 17 to the outside. The linear motion member 15 moves from the retracted position to the other side L2 in the direction of the axis L and protrudes, and the retracted position moves to the one side L1 in the direction of the axis L from the protruded position. is displaced by . 8, 10 and 16 show an example in which the tip of the direct-acting member 15 in the retracted position protrudes outside from the housing 17. The tip of the direct-acting member 15 may be accommodated within the housing 17 .

As shown in FIG. 3, a pair of upper and lower angular pieces 79, 79 extending in the axial center L direction are formed at the end of the shaft main body 47 on one side L1 in the axial center L direction. Each angular piece 79 is provided with an engaging projection 81 . A wall portion 83 extending in a plane in a direction orthogonal to the axial center L direction is provided at the end portion of each angular piece 79 on the other side L2 in the axial center L direction. Furthermore, a slit 85 extending in the axial center L direction from the end face is provided at the end of the shaft main body 47 on one side L1 in the axial center L direction.

The stopper member 49 has a partial cylindrical portion 87 that is partially open in the direction around the axis L, and prismatic portions 89 and 89 that extend from the upper and lower portions of the partial cylindrical portion 87 in the direction of the axis L, respectively. there is Since the prism portion 89 is slidably accommodated in the guide recess 73 of the accommodation portion 71, the direct-acting member 15 cannot rotate about the axis L within the housing 17 and can reciprocate in the direction of the axis L. be guided as much as possible.

As shown in FIGS. 13 and 15 , the stopper member 49 has fitting recesses 91 into which the angular pieces 79 are fitted, and positioning projections 93 that can be inserted into the slits 85 . Moreover, as shown in FIGS. 2 and 3, the stopper member 49 has engaged portions 99 that can be snap-engaged with the respective engaging projections 81 .

The shaft main body 47 and the stopper member 49 are fixed by snap engagement between the engaging projection 81 of the shaft main body 47 and the engaged portion 99 provided on the stopper member 49, and the stopper member 49 moves from the shaft main body 47 to the shaft center. Disengagement in the L direction is restricted. At this time, by inserting the positioning projection 93 into the slit 85 , the stopper member 49 can be assembled to the shaft body 47 in a correct positional relationship in the direction around the axis L. Moreover, the relative rotation between the shaft main body 47 and the stopper member 49 is restricted by the engagement between the angular pieces 79 and the fitting recesses 91 .

Of the meshing portion 45 provided on the inner peripheral surface 43a of the linear motion shaft 43, a part of the other side L2 in the direction of the axis L is formed in the shaft main body 47, and the remaining part of the one side L1 in the direction of the axis L serves as a stopper. It is formed on member 49 . As shown in FIG. 4 , part of the meshing portion 45 is formed on the inner peripheral surface 75 a of the cylindrical portion 75 of the shaft body 47 . As shown in FIG. 3, of the inner peripheral surface 87a of the partial cylindrical portion 87 of the stopper member 49, the remaining portion of the meshing portion 45 is formed on the inner peripheral surface 87a at the end on the other side in the axial center L direction. .

As shown in FIGS. 4, 9, and 11, the direct-acting member 15 has a first contacted portion 51 that can contact the first contact portion 39 in the direction around the axis L. As shown in FIGS. When the rotating member 13 rotates in one direction R1, the first contact portion 39 and the first contacted portion 51 come into contact with each other in the direction around the axis L, so that the direct-acting member 15 moves in the direction of the axis L. linear movement to one side L1 of is restricted. 3, 13 and 15, the linear motion member 15 has a second contacted portion 53 capable of contacting the second contact portion 41 in the direction around the axis L. . When the rotating member 13 rotates in the other direction R2, the second contact portion 41 and the second contacted portion 53 come into contact with each other in the direction around the axis L, so that the linear motion member 15 moves in the direction of the axis L. linear movement to the other side L2 is regulated.

The first contacted portion 51 and the second contacted portion 53 are formed on the inner side surface of the female threaded engaging portion 45 . In other words, the first contacted portion 51 and the second contacted portion 53 are formed within the range of the engaging portion 45 in the axial center L direction. The first abutted portion 51 is provided on the inner surface of the end portion of the engaging portion 45 on the other side L2 in the axial center L direction. That is, as shown in FIG. 4, the first abutted portion 51 is the inner surface of the end portion on the other side L2 in the axial center L direction of the meshing portion 45 formed on the inner peripheral surface 75a of the tubular portion 75. is provided in Specifically, the end portion of the thread groove in the direction of the axial center L of the female threaded engaging portion 45 formed in the tubular portion 75, which is the end portion of the thread groove in the direction around the axial center L, is The defining wall portion is the first contacted portion 51 . The first abutment portion 39 and the first abutted portion 51 are in contact with each other through surface-to-surface contact. The second contacted portion 53 is provided on the inner surface of the end portion of the engaging portion 45 on the one side L1 in the axial center L direction. That is, as shown in FIG. 3, the second abutted portion 53 is located at the inner end portion of the engaging portion 45 formed on the inner peripheral surface 87a of the partial tubular portion 87 on the one side L1 in the axial center L direction. provided on the side. Specifically, the end portion on one side L1 in the direction of the axial center L of the thread groove in the female threaded engaging portion 45 formed in the partial cylindrical portion 87 and the end portion in the direction around the axial center L of the thread groove. is defined as the second abutted portion 53 . The second abutment portion 41 and the second abutted portion 53 are in contact with each other through surface-to-surface contact.

As shown in FIG. 8 and the like, the housing 17 has a third contact portion 55 and a fourth contact portion 57 . The third contact portion 55 and the fourth contact portion 57 are formed in the housing portion 71 . The third contact portion 55 is provided at the end portion of one side L1 of the housing portion 71 in the axial center L direction, and the fourth contact portion 57 is provided at the other side L2 of the housing portion 71 in the axial center L direction. is provided. The third contact portion 55 and the fourth contact portion 57 have contact surfaces perpendicular to the axis L direction.

The linear motion member 15 has a third contacted portion 59 and a fourth contacted portion 61 . The end face of the prismatic portion 89 of the stopper member 49 on one side L1 in the axial center L direction serves as the third abutted portion 59 . The end surface of the wall portion 83 of the shaft body 47 on the other side L2 in the axial center L direction serves as the fourth abutted portion 61 .

As the rotating member 13 rotates in one direction R1, the third contact portion 55 and the third The abutted portion 59 is configured to abut in the axial center L direction. The third abutting portion 55 and the third abutted portion 59 are in contact with each other through surface-to-surface contact. Further, by rotating the rotating member 13 in the other direction R2, the fourth contact portion 57 and the second contact portion 41 and the second contact portion 53 contact each other in the direction around the axis L. It is configured to contact the fourth contacted portion 61 in the axial center L direction. The fourth abutment portion 57 and the fourth abutted portion 61 are in contact with each other through surface-to-surface contact.

As shown in FIG. 2 , the operating member 21 has an operating portion 95 protruding from the housing 17 and a gear portion 97 that meshes with the driven gear 31 of the rotating member 13 . The operating member 21 functions as a so-called emergency lever, and when the motor 19 fails, the user can manually operate the operating portion 95 to rotate the rotating member 13 around the axis L. It is possible. The operating member 21 can be operated by the user from the inside of the vehicle, for example, from the compartment such as the trunk room.

<Operation of linear drive device and lock device>
The linear drive device 1 and locking device 3 configured as described above operate as follows.
For example, as shown in FIG. 6 and the like, the charging gun 7 is connected to the vehicle body side connector 5 in a state in which the linear motion member 15 of the linear drive device 1 is in the retracted position moved to one side L1 in the axial center L direction. , when power supply is started, the motor 19 is rotated in the opposite direction by a control unit (not shown). When the motor 19 is driven to rotate in the opposite direction, the rotating member 13 rotates about the axis L in the other direction R2 due to the engagement between the driving gear 29 and the driven gear 31 . When the rotating member 13 rotates, the linear motion member 15 linearly moves in the axial center L direction with respect to the rotating member 13 due to the engagement between the spiral groove portion 35 and the meshing portion 45 . As a result, the linear motion member 15 linearly moves from the retracted position toward the protruding position, that is, toward the other side L2 in the axial center L direction.

Then, as shown in FIG. 12, when the direct-acting member 15 moves to the projecting position, the fourth contact portion 57 and the fourth contacted portion 61 come into contact with each other in the axial center L direction. At this time, as shown in FIG. 13, the second contact portion 41 and the second contacted portion 53 are not in contact with each other in the direction around the axis L yet. The contact between the fourth contact portion 57 and the fourth contacted portion 61 in the direction of the axis L restricts the linear movement of the direct-acting member 15 in the direction of the axis L toward the other side L2.

If the motor 19 continues to rotate in the opposite direction after that, the rotating member 13 rotates about the axis L in the other direction R2. At this time, since the linear movement of the linear motion member 15 is restricted by the contact between the fourth contact portion 57 and the fourth contacted portion 61, the linear motion member 15 moves toward the other side L2 in the axial center L direction. It never moves. Therefore, as shown in FIG. 14, the rotating member 13 rotates about the axis L in the other direction R2 and linearly moves a little to one side L1 in the axis L direction. A clearance is provided between the housing 17 and the rotating member 13 in the direction of the axis L to allow the linear movement of the rotating member 13 at this time. As a result, as shown in FIG. 15, the second abutment portion 41 and the second abutted portion 53 are brought into contact with each other in the direction around the axis L, and the rotating member 13 moves around the axis L in the other direction R2. Rotation is restricted.

Thus, the linear motion member 15 of the linear drive device 1 is displaced to the projecting position. At this time, the bar-shaped portion 77 extends above the claw portion 9 of the charging gun 7 engaged with the receiving portion 11 of the vehicle-body connector 5, and the claw portion 9 moves away from the receiving portion 11 (Q in FIG. 16). The rod-like portion 77 restricts the rocking in the direction indicated by the arrow.

When the charging gun 7 is removed from the vehicle body side connector 5, the motor 19 is rotationally driven in the forward direction by a control section (not shown). When the motor 19 is driven to rotate in the forward direction, the driving gear 29 and the driven gear 31 are engaged with each other, so that the rotating member 13 rotates about the axis L in one direction R1. When the rotating member 13 rotates, the linear motion member 15 linearly moves in the axial center L direction with respect to the rotating member 13 due to the engagement between the spiral groove portion 35 and the meshing portion 45 . As a result, the linear motion member 15 linearly moves from the protruded position toward the retracted position, that is, toward one side L1 in the axial center L direction.

Then, as shown in FIG. 8, when the direct-acting member 15 moves to the retracted position, the third contact portion 55 and the third contacted portion 59 come into contact with each other in the axial center L direction. At this time, as shown in FIG. 9, the first contact portion 39 and the first contacted portion 51 are not in contact with each other in the direction around the axis L yet. The contact between the third contact portion 55 and the third contacted portion 59 in the direction of the axis L restricts the linear movement of the direct-acting member 15 toward the one side L1 in the direction of the axis L. As shown in FIG.

If the motor 19 continues to rotate in the positive direction thereafter, the rotating member 13 rotates further in one direction R1 around the axis L. As shown in FIG. At this time, since the linear movement of the linear motion member 15 is restricted by the contact between the third contact portion 55 and the third contacted portion 59, the linear motion member 15 moves toward the one side L1 in the axial center L direction. It never moves. Therefore, as shown in FIG. 10, the rotating member 13 rotates about the axis L in one direction R1 and linearly moves a little to the other side L2 in the axis L direction. A clearance is provided between the housing 17 and the rotating member 13 in the direction of the axis L to allow the linear movement of the rotating member 13 at this time. As a result, as shown in FIG. 11, the first abutment portion 39 and the first abutted portion 51 are brought into contact with each other in the direction around the axis L, and the rotating member 13 moves around the axis L in one direction R1. Rotation is restricted.

Thus, the linear motion member 15 of the linear drive device 1 is displaced to the retracted position. At this time, the bar-shaped portion 77 is retracted from above the claw portion 9 of the charging gun 7 engaged with the receiving portion 11 of the vehicle-body connector 5, and the claw portion 9 moves away from the receiving portion 11 (see FIG. 16). It is possible to swing in the direction indicated by the arrow Q).

<Effect>
In the linear drive device 1, the rotation of the rotary member 13 about the axis L in one direction R1 causes the linear motion member 15 to linearly move toward the one side L1 in the direction of the axis L, thereby moving the first contact portion. 39 and the first contacted portion 51 abut against each other in the direction around the axis L, the linear movement of the direct-acting member 15 toward the one side L1 in the direction of the axis L is restricted. At this time, the first contact portion 39 of the rotating member 13 contacts the first contacted portion 51 of the linear motion member 15, which cannot rotate about the axis L, in the direction around the axis L. Since the rotation itself of the rotating member 13 is regulated, the rotating member 13 does not rotate further and the rotating member 13 and the direct-acting member 15 do not rotate relative to each other. Therefore, the clearance between the spiral groove portion 35 and the meshing portion 45 is not clogged, and the spiral groove portion 35 does not bite into the meshing portion 45 . Therefore, so-called self-locking, in which smooth rotation of the rotating member 13 becomes impossible due to biting between the spiral groove portion 35 and the meshing portion 45, can be avoided without using an elastic body that easily deteriorates.

Further, in the linear drive device 1 , the rotating member 13 is formed with the second contact portion 41 , and the linear motion member 15 is formed with the second contacted portion 53 . Therefore, when the rotating member 13 rotates in the other direction R2 about the axis L and the direct-acting member 15 moves linearly toward the other side L2 in the axis L direction, so-called self-locking is similarly performed. can be avoided.

The first contact portion 39 of the rotating member 13 is provided within the range of the spiral groove portion 35 originally formed in the rotating member 13 . For this reason, as in the case where the first contact portion 39 protrudes in the axial center L direction from the end portion of the rotating member 13, by providing the first contact portion 39, the rotating member 13 moves in the axial center L direction. never grow large.

Therefore, in the linear drive device 1 and the lock device 3 provided with the linear drive device 1, self-lock can be avoided without increasing the size of the device, and self-lock can be effectively avoided over a long period of time. .

Further, in the linear drive device 1, the third contact portion 55 and the third contacted portion 59 move in the axial center L direction immediately before the first contact portion 39 and the first contacted portion 51 contact each other. It is configured to abut and allow the movement of the rotating member 13 in the axial center L direction so as to enable further rotation of the rotating member 13 after the contact. Therefore, it is possible to disperse the impact when the abutting portions abut against each other, and in particular, the deformation and wear of the first abutting portion 39 and the first abutted portion 51 can be reduced.

Similarly, just before the second contact portion 41 and the second contact portion 53 contact, the fourth contact portion 57 and the fourth contact portion 61 contact in the axial center L direction, and It is configured to allow the movement of the rotating member 13 in the direction of the axis L in order to enable further rotation of the rotating member 13 after the contact. Therefore, it is possible to disperse the impact when the abutting portions abut against each other, and in particular, it is possible to reduce deformation and wear of the second abutting portion 41 and the second abutted portion 53 .

Further, the linear drive device 1 has an operating member 21 that functions as a so-called emergency lever. Therefore, when the motor 19 fails or the like, the user can manually operate the operating member 21 to rotate the rotating member 13 around the axis L. As shown in FIG. Therefore, for example, even if the motor 19 fails while the linear motion member 15 of the linear drive device 1 is in the projecting position, the user manually operates the operation member 21 to displace the linear motion member 15 from the projecting position to the retracted position. It is possible to remove the charging gun 7 from the vehicle body side connector 5.例文帳に追加

Although the present invention has been described above with reference to the embodiments, it goes without saying that the present invention is not limited to the above embodiments, and can be modified and applied without departing from the scope of the invention.

In the embodiment, when the rotary member 13 rotates in one direction R1 about the axis L and the linear motion member 15 linearly moves in the direction L1 of the axis L, the linear motion member 15 moves from the projecting position. Although displaced to the retracted position, the invention is not limited to this configuration. For example, when the rotary member 13 rotates in one direction around the axis L and the linear motion member 15 linearly moves to one side in the direction of the axis L, the linear motion member 15 is displaced from the retracted position to the protruding position. may

In the embodiment, the linear motion member 15 is composed of the shaft main body 47 and the stopper member 49, and the shaft main body 47 and the stopper member 49 are connected after setting the rotating shaft 33 in the shaft main body 47. is not limited to this configuration. For example, the linear motion member 15 is divided along the direction of the axis L to form a first divided body and a second divided body, and after setting the rotation shaft 33 in the first divided body, the first divided body and the second divided body are formed. You can join the body.

In the embodiment, a second contact portion 41 and a second contact portion 53 are provided in addition to the first contact portion 39 and the first contact portion 51, and a third contact portion 55 and a third contact portion 55 are provided. Although the fourth contact portion 57 and the fourth contacted portion 61 are provided in addition to the contact portion 59, the present invention is not limited to this configuration. For example, the second contact portion 41 and the second contact portion 53 may be omitted, and the fourth contact portion 57 and the fourth contact portion 61 may be omitted. Further, the third contact portion 55 and the third contact portion 59 may be omitted, and the fourth contact portion 57 and the fourth contact portion 61 may be omitted.

In the embodiment, the rotary shaft 33 of the rotary member 13 is rod-shaped and the spiral groove portion 35 is male-threaded, and the direct-acting shaft 43 of the linear-acting member 15 is cylindrical and the meshing portion 45 is female-threaded. , the invention is not limited to this configuration. For example, the rotary shaft 33 of the rotary member 13 may be cylindrical and the spiral groove portion 35 may be female threaded, and the linear motion shaft 43 of the linear motion member 15 may be rod-shaped and the engagement portion 45 may be male threaded.

In the embodiment, the lock device 3 is arranged on the right side and rear side of the vehicle, but the present invention is not limited to this configuration. For example, the locking device 3 can be arranged at any position on the front, rear, or side of the vehicle, corresponding to the position of the charging port.

INDUSTRIAL APPLICABILITY The present invention can be used, for example, in vehicles equipped with power storage devices for supplying power to driving motors, industrial machines, and the like.

DESCRIPTION OF SYMBOLS 1... Linear drive device 3... Locking device 5... Vehicle body side connector (vehicle body)
7 ... Charging gun (mounting device)
DESCRIPTION OF SYMBOLS 13... Rotating member 15... Direct-acting member 17... Housing 19... Motor 21... Operating member 33... Rotating shaft 33a... Outer peripheral surface 35... Spiral groove part 39... First contact part 41... Second contact part 43... Straight Driving shaft 43a... Inner peripheral surface 45... Engagement part 47... Shaft main body 49... Stopper member 51... First contacted part 53... Second contacted part 55... Third contact part 57... Fourth contact part 59 ... third contacted portion 61 ... fourth contacted portion

The linear drive device of the present invention comprises:
a rotating member having a spiral groove formed around an axis and having a groove extending spirally and a ridge ;
An engaging portion formed around the axial center and made up of a spirally extending groove and a ridge meshing with the spiral groove portion is provided. By rotating in one direction, it linearly moves in one direction of the axial center, and by rotating the rotating member in the other direction around the axial center, it moves in the other direction of the axial center. a linear motion member that moves linearly;
a housing that supports the rotating member rotatably about the axis and supports the linear motion member so that it cannot rotate about the axis but can reciprocate in the axial direction;
A first contact portion is formed on the rotating member,
When the rotary member rotates in the one direction, the linear motion member abuts against the first contact portion in the direction around the axis to prevent the linear motion member from moving to the one side. In a linear drive device in which a regulating first abutted portion is formed,
The first contact portion is provided within the range of the spiral groove portion in the axial direction , and is formed at the other end of the spiral groove portion in the axial direction,
The first abutted portion is provided within the range of the engaging portion in the axial direction , and is formed at the other end of the engaging portion in the axial direction. .

As shown in FIG. 3, the rotating shaft 33 extends from the driven gear 31 along the axial center L direction and has a substantially circular cross section. The rotating shaft 33 has a spiral groove portion 35 on the outer peripheral surface 33a of the end portion on the other side L2 in the axial center L direction. The spiral groove portion 35 is composed of grooves and ridges spirally extending around the axis L of the rotating shaft 33 . The spiral groove portion 35 is formed as a male thread on the outer peripheral surface 33a of the rotating shaft 33 . The thread of the spiral groove portion 35 protrudes radially outward from the outer peripheral surface 33 a of the rotating shaft 33 and extends spirally around the axis L of the rotating shaft 33 . The screw thread in the spiral groove portion 35 extends clockwise ( It extends spirally in one direction (R1) around the axis L for about two turns. That is, the screw thread in the spiral groove portion 35 extends in a so-called right-handed screw shape.

As shown in FIGS. 3 and 8 to 15, the rotating shaft 33 has a first contact portion 39 and a second contact portion 41. As shown in FIGS. The first contact portion 39 and the second contact portion 41 are formed on the outer surface of the spiral groove portion 35 formed on the male thread. In other words, the first contact portion 39 and the second contact portion 41 are formed within the range of the spiral groove portion 35 in the axial center L direction. More specifically, a flat portion 37a is formed on the outer side surface of the spiral groove portion 35 by flatly cutting the thread portion of the spiral groove portion 35 along the axis L. As shown in FIG. The flat portion 37a is formed by a notched surface corresponding to a cutting surface capable of cutting both the screw thread at the proximal end portion and the screw thread at the distal end portion of the spiral groove portion 35. As shown in FIG. A portion of the flat portion 37a where the screw thread on the most other side L2 in the axial center L direction, which is the distal end portion of the spiral groove portion 35, is cut off serves as a first contact portion 39, and the base end of the spiral groove portion 35 A second contact portion 41 is formed by cutting out the screw thread on the most one side L1 in the axial center L direction.

As shown in FIG. 3 , the linear motion member 15 has a linear motion shaft 43 extending cylindrically in the axial center L direction on one side L1 in the axial center L direction. As shown in FIGS. 3 and 4, the direct-acting shaft 43 has a meshing portion 45 on an inner peripheral surface 43a of the end portion on one side L1 in the axial center L direction. The meshing portion 45 is composed of grooves and ridges spirally extending around the axis L of the direct-acting shaft 43 . The meshing portion 45 is formed as a female thread on the inner peripheral surface 43a of the direct-acting shaft 43 . The thread of the meshing portion 45 protrudes radially inward from the inner peripheral surface 43 a of the direct-acting shaft 43 and spirally extends around the axis L of the direct-acting shaft 43 . The meshing portion 45 is formed to mesh with the spiral groove portion 35 . The thread groove in the meshing portion 45 extends clockwise (one direction R1 around the axis L) from one side L1 to the other side L2 of the linear motion shaft 43 in the direction of the axis L for about 4.5 turns. spirally extending. That is, the thread groove in the meshing portion 45 extends in a so-called right-handed thread shape. The length of the engaging portion 45 in the axial center L direction can be appropriately set according to the desired amount of protrusion of the linear motion member 15 (the amount of displacement from the retracted position to the protruding position).

The first abutted portion 51 and the second abutted portion 53 are formed on the inner side surface of the engaging portion 45 formed in the female thread. In other words, the first contacted portion 51 and the second contacted portion 53 are formed within the range of the engaging portion 45 in the axial center L direction. The first abutted portion 51 is provided on the inner surface of the end portion of the engaging portion 45 on the other side L2 in the axial center L direction. That is, as shown in FIG. 4, the first abutted portion 51 is the inner surface of the end portion on the other side L2 in the axial center L direction of the meshing portion 45 formed on the inner peripheral surface 75a of the tubular portion 75. is provided in Specifically, the end portion of the thread groove in the engagement portion 45 formed as an internal thread in the tubular portion 75 is defined as the end portion of the thread groove in the direction around the axis L, which is the other side L2 end portion of the thread groove. A wall portion that contacts the contact portion is a first contacted portion 51 . The first abutment portion 39 and the first abutted portion 51 are in contact with each other through surface-to-surface contact. The second contacted portion 53 is provided on the inner surface of the end portion of the engaging portion 45 on the one side L1 in the axial center L direction. That is, as shown in FIG. 3, the second abutted portion 53 is located at the inner end portion of the engaging portion 45 formed on the inner peripheral surface 87a of the partial tubular portion 87 on the one side L1 in the axial center L direction. provided on the side. Specifically, the end portion of the thread groove in the direction of the axial center L of the engaging portion 45 formed as a female thread in the partial cylindrical portion 87 and the end portion of the thread groove in the direction around the axial center L is The defining wall portion is the second contacted portion 53 . The second abutment portion 41 and the second abutted portion 53 are in contact with each other through surface-to-surface contact.

In the embodiment, the rotary shaft 33 of the rotary member 13 is rod-shaped and the helical groove portion 35 is formed as a male thread, and the direct-acting shaft 43 of the direct-acting member 15 is cylindrical and the engaging portion 45 is formed as a female thread. , the invention is not limited to this configuration. For example, the rotary shaft 33 of the rotary member 13 may be cylindrical and the helical groove portion 35 may be formed as a female thread, and the linear motion shaft 43 of the linear motion member 15 may be bar-shaped and the engagement portion 45 may be formed as a male thread. .

Claims (8)

a rotating member having a spiral groove formed around an axis;
a meshing portion formed around the axial center and meshing with the spiral groove portion, the rotating member rotating in one direction around the axial center to linearly move in one direction of the axial center; a linear motion member linearly moving in the other axial direction by rotating the rotating member in the other direction around the axial center;
a housing that supports the rotating member rotatably about the axis and supports the linear motion member so that it cannot rotate about the axis but can reciprocate in the axial direction;
A first contact portion is formed on the rotating member,
When the rotary member rotates in the one direction, the linear motion member abuts against the first contact portion in the direction around the axis to prevent the linear motion member from moving to the one side. In a linear drive device in which a regulating first abutted portion is formed,
The first contact portion is provided within the range of the spiral groove portion in the axial direction, and the first contacted portion is provided within the range of the engaging portion in the axial direction. Linear drive to. A second contact portion is formed on the rotating member,
When the rotary member rotates in the other direction, the linear motion member abuts against the second contact portion in the direction around the axis to prevent the linear motion member from moving to the other side. A regulating second abutted portion is formed,
2. The second contact portion is provided within the range of the spiral groove portion in the axial direction, and the second contacted portion is provided within the range of the engaging portion in the axial direction. linear drive. The rotating member has a rotating shaft extending in the axial direction in a rod shape and having the spiral groove provided on the outer peripheral surface of the other end,
The linear motion member has a linear motion shaft that extends cylindrically in the axial direction and has the meshing portion provided on the inner peripheral surface of the one end,
The direct-acting member includes a shaft body having one end opened into which the rotating shaft is inserted and a portion of the other side of the meshing portion formed, and the one-side end of the shaft body. a stopper member attached to the portion and formed with the remainder of the one side of the meshing portion;
The first contact portion is provided at the other end of the spiral groove, and the second contact portion is provided at the one end of the spiral groove,
3. The first contact portion is provided at the other end of the meshing portion, and the second contact portion is provided at the one end of the meshing portion. linear drive. A third contact portion is formed on the housing,
By rotating the rotary member in the one direction, the linear motion member is configured to rotate the third contact portion and the first contact portion before the first contact portion and the first contacted portion contact each other. 4. The linear drive device according to claim 2, further comprising a third abutted portion that abuts in the axial direction to restrict the movement of the linear motion member to the one side. A fourth contact portion is formed on the housing,
By rotating the rotating member in the other direction, the linear motion member rotates the fourth contact portion and the second contact portion before the second contact portion and the second contacted portion contact each other. 5. The linear drive device according to claim 2, further comprising a fourth abutted portion that abuts in the axial direction to restrict the movement of the linear motion member to the other side. A third contact portion is formed on the housing,
By rotating the rotary member in the one direction, the linear motion member is configured to rotate the third contact portion and the first contact portion before the first contact portion and the first contacted portion contact each other. 2. The linear drive device according to claim 1, further comprising a third abutted portion which abuts on the linear motion member in the axial direction to restrict the movement of the linear motion member to the one side. a motor provided in the housing for driving the rotating member to rotate about the axis;
7. The linear drive device according to claim 1, further comprising an operating member protruding from said housing and capable of manually rotating said rotating member about said axis. 8. The mounting device according to any one of claims 1 to 7, wherein a vehicle body, a mounting device mounted on the vehicle body, and the direct-acting member linearly move to the other side so that the mounting device cannot be detached from the vehicle body. A locking device, comprising: a linear drive;

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